Compared to red light blue light has a higher frequency and higher energy and shorter wavelength. Option D.
At one end of the spectrum is a red light which has the longest wavelengths. Blue or violet light has the shortest wavelengths. Higher energy means higher frequency. Red light has less energy than other visible light, so it has a lower frequency and a longer wavelength. Red light has a longer wavelength and lower frequency than blue light.
Blue light has a short wavelength and red light has a long wavelength. The shorter the wavelength, the more light is scattered. Since the speed of light is constant, the wavelength is inversely proportional to frequency. Higher frequencies map to shorter wavelengths. Red light has a slightly longer wavelength than blue light.
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the solid dot shown in the figure below is a pivot point. the board can rotate about the pivot.
The torque due to perpendicular force will be greatest.
Torque is the measure of the force that can cause an object to rotate about an axis. Force is what causes an object to accelerate in linear kinematics.The unit of torque is Newton–meter (N-m) A simple way to calculate the magnitude of the torque is to first determine the lever arm and then multiply it times the applied force.It is a vector product hence torque also must be a vector. Using vector product notations we can find the direction of torque.We know that Torque = mass * velocity * sinα
where α = angle between mass and velocity.
For maximum torque, sinα = 1 ; i.e. α = 90°.
So the torque due to perpendicular force will be greatest.
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according to this graph, the minimum size of an object that could cause a mass extinction is a little less than _____.
According to this graph, an object that would cause a mass extinction would need to be at least 10 km is diameter.
What is object and example?Any word (or pronoun) that forms the subject of a verb or preposition is referred to as an object. There are three categories of items: Straight Thing (e.g., I know him.) Unrelated Item (e.g., Give her the prize.) Prepositional Object (e.g., Sit with them.)
What is object a sentence?An expression's subject. The subject's verb's action upon a person, place, or thing is typically called the object. As you might expect, looking for the pronoun or the noun that follows the verb is the quickest approach to identify the subject in a simple sentence.
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a student is riding a ferris wheel that moves at a constant tangential speed around a vertical circular path of radius r, as shown in figure 1. the student is sitting on a scale. at the instant the moving student is located at point p, the scale exerts a force of magnitude fscale on the student and earth exerts a force of magnitude fgravity on the student, as shown in the free-body diagram in figure 2. which of the following statements provides reasoning that supports and correctly identifies the magnitude of the force that the student exerts on the scale when the student is at point p ?
Answer:B
Explanation:According to newtons 3rd law, the forces must be equivalent
The voltage across a 10 ohm resistor carrying 5 Amps of current is a. 10 Volts b. 5 Volts c. 1 Volt d. 50 Volts
The voltage of the resistor of resistance 10 ohms is 50 V. The correct option is d. 50 Volts.
What is voltage?Voltage describes the “pressure” that pushes electricity.
To calculate the voltage of the resistor, we use the formula below.
Formula:
V = IR............... Equation 1Where:
V = VoltageI = CurrentR = ResistanceFrom the question,
Given:
I = 5 AR = 10 ohmSubstitute these values into equation 1
V = 5×10V = 50 VHence, the voltage of the resistor is 50 V. Correct option d. 50 volts.
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the normal component of the magnetic flux density remains continuous across the boundary between two magnetic media
Across the border, the normal component of the flux density is constant. The strength of the tangential field is the second boundary condition, which is B1n = B2n.
Magnetic flux is it constant?Conclusion. In a continuous loop perpendicular to the motion of the electric dipoles in the magnetic material, the magnetic flux is constant and happens. Due to the conductor's constant area and varying magnetic field, the magnetic flux may change.
What is the boundary condition for E across the media interface?There could be a surface charge density at the boundary between two materials. The normal components of the electric field are discontinuous and equal to the surface charge density at the boundary between any two dielectrics, while the tangential components are continuous.
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which of the following lists two ways that transcranial magnetic stimulation is similar to electroconvulsive therapy?
Transcranial magnetic stimulation is similar to ECT in that "both are effective in alleviating depression and no one knows why".
Transcranial magnetic stimulation (rTMS) refers to a drug that treats a type of brain stimulation treatment used to treat sadness and nervousness. It has been being used since 1985. The treatment includes utilizing a magnet to target and fortify certain regions of the brain.
Doctors recommend taking no less than one round of medicine(drug) antidepressants before investigating the likelihood of rTMS. Antidepressants and psychotherapy might be utilized in mix with rTMS.
Therefore, they are similar to each other as these drugs are usually give a suggestion that brain stimulation is effective when treating severe forms of depression. These methods are usually used after other methods have been tried and failed. They involve the stimulation of the brain.
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a. What are the defects of simple cell?
For a galvanic cell, the cathode has a sign and is the site of negative; oxidation negative; reduction positive, oxidation positive, reduction
The cathode has a positive sign and is the site of reduction.
What exactly is a cathode?The term cathode refers to a polarized electrical device that regulates electric current. The cathode needs electrons to provide current, it progressively accumulates mass from the cations it draws.
How does the cathode perform?The positive ions go towards the cathode and the negative ions flow towards the anode when an electric current is passed through a cell containing an electrolyte. The circuit will not be complete if the cathode is removed from the solution, which will cause the ions to travel aimlessly since they lack direction. Due to the reversal of the electron flow in a power-generating device, the cathode is the positive terminal. When the battery's energy is being used in devices like galvanic cells, they become non-rechargeable.
Hence, the cathode undergoes reduction with a positive sign.
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saturation occurs when
Saturation occurs when air contains the maximum amount of water vapor possible for its given temperature.
What is saturation?Saturation in meteorology is a state of the atmosphere when it is saturated with water vapour i.e. 100% humidity.
Also, in chemistry, saturation is a characteristics of a solution containing all the solute that can normally be dissolved at a given temperature.
Condensation and evaporation occur simultaneously , but at some point, the air becomes saturated, meaning the rate of evaporation is the same as the rate of condensation.
In other words, the air cannot hold any more water vapor at that temperature and pressure, so if any liquid water molecules become water vapor, the same amount of water vapor must condense and return to a liquid.
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Consider an electron near the Earth's equator. In which direction does it tend to deflect if its velocity is directed in each of the following directions? (A) Downward(B) Northward(C) Westward(D) Southeastward
it tend to deflect if its velocity is in Westward direction.
What does an electrical deflection mean?An electric field that is supplied transverse to the route of the particles can be used to change the trajectory of a stream of charged particles, a process known as electrostatic deflection.
In physics, what does deflection mean?Deflection in physics is the modification of a moving object's velocity and, consequently, trajectory due to contact (collision) with a surface or the action of a non-contact force field.
What's an illustration of deflection?When someone switches the subject in the middle of a discussion, that is one of the most prevalent instances of deflection. In particular, the deflector will refocus the discourse to center on something the other person did incorrectly if their behavior is questioned.
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how is einstein's famous equation, e = mc2, important in understanding the sun?
The correct answer is option D) the Sun generates energy to shine by losing 4 million tonnes of mass each second.
What is sun ?
The Sun, a 4.5 billion year old yellow dwarf star and the centre of our solar system, is a hot, glowing ball of hydrogen and helium. It's about 93 million miles (150 million kilometers) from Earth and it's our solar system's only star. The sun is not a solid mass. It does not have easily identifiable boundaries like rocky planets like Earth. Instead, the sun is composed of layers made up almost entirely of hydrogen and helium.
It explains the fact that the Sun generates energy to shine by losing some 4 million tonnes of mass each second. The "lost" 4 million tonnes is turned to an amount of energy equal to this mass times the speed of light squared.In order to produce the energy we see it produce, the Sun needs to fuse 4 × 1038 protons into helium-4 per second. The upshot of that fusion is that 596 million tonnes of helium-4 are formed with each second that passes, while 4 million tonnes of mass are turned into pure energy via E = mc2.
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specific features are created using scrum methodology according to four distinct phases. which of the following places these phases in the correct order?
Analysis, Design, Build, Test is the correct order specific features are created using scrum methodology according to four distinct phases
Explain the distinct phase of force.A force that is applied to an object by a person or another object is referred to as an applied force. When someone pushes a desk across the room, there is an applied force acting on the object. The applied force is the force that the person exerts on the desk. The force of gravity is the attraction that the earth, moon, or other enormously large object has on another object. The normal force is the force exerted by one object in contact with another stable object. The friction force is the force exerted by a surface when an object moves or attempts to move across it.
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the unique challenge for (fill the blank) markets is that they must develop flexible, customized solutions that meet the specific needs of, for example, different sized churches or school districts.
The unique challenge for Institutional markets is that they must develop flexible, customized solutions that meet the specific needs of, for example, different-sized churches or school districts.
What are institutional markets?Institutional markets can be defined as markets located inside government institution facilities such as buildings or universities, which are aimed at providing products and services to people who work and or study in these locations.
Therefore, with this data, we can see that institutional markets are located inside government facilities and gives services or products to workers and or students who make their activities.
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Which of the following statements about spectral types of stars is true?
All of the above are true.
The spectral type of a star can be used to determine its color and A star with spectral type A is cooler than a star with spectral type B.
What is an example of a spectrum?A spectrum can be naturally represented by a rainbow. Optical researchers were the first to adopt the term spectrum. They understood by the word the spectrum of colors visible light displays when split by a prism. The spectrum that is created when light passes through a prism serves as an example of how light disperses.
What is a spectrum's quantum?A photon of luminous energy is released when an electron switches from a better energy (higher angular momentum) orbit to a reduced energy orbit. The frequency of the photon, v, is associated with energy difference, E, by the formula v=E/h.
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The complete question is -
Which of the following statements about spectral types of stars is true?
A) The spectral type of a star can be used to determine its surface temperature.
B) The spectral type of a star can be used to determine its color.
C) A star with spectral type F2 is hotter than a star with spectral type F3.
D) A star with spectral type A is cooler than a star with spectral type B.
E) All of the above are true.
A bowling ball that weighs 70 N is dropped from a tower 15 meters above the ground. Disregarding air friction, what is the KE of the ball when it reaches the ground? What is the ball’s velocity the moment before it hits the ground?
The kinetic energy of the bowling ball of weight 70 N is 1050 J, and the velocity of the ball the moment before it hits the ground is 17.15 m/s.
What is kinetic energy?This is the energy of a body in motion.
To calculate the kinetic energy of the ball when it hits the ground, we use the formula below.
Formula:
Since there is no loss due to friction,
Kinetic energy = Potential energyK.E = Wh.............. Equation 1Where,
K.E = Kinetic energyW = Weight of the ballh = Height of the towerFrom the question,
Given:
W = 70 Nh = 15 mSubstitute into equation 1
K.E = 70×15K.E = 1050 JAlso,
To calculate the velocity before the ball hit the ground, we use the formula below.
v = √(2gh)......... Equation 2Where:
g = Acceleration due to gravity = 9.8 m/s²v = Velocity of the ball before hitting the ground.Substitute into equation 2
v = √(2×15×9.8)v = √294v = 17.15 m/sHence, the kinetic energy and the velocity of the ball before hitting the ground is 1050 J and 17.15 m/s respectively.
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Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. The lasers produce separate interference patterns on a screen a distance 5.10 m away from the slits.
Which laser has its first maximum closer to the central maximum?
Ans: laser 1
What is the distance Image for Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas las between the first maxima (on the same side of the central maximum) of the two patterns?
The difference between two slits is 0.09m
It can be seen that the separation between two consecutive interference maxima is constant and independent of the order observed.
Considering that the small angle approximation is valid then we have to
y1 = (1* 5.10m* d/20) / d
y1 = 0.25
y2 = (1*5.10m*d/15) / d
y2 = 0.34
Therefore, the first order maximum produced by laser 1 is closer to the central maximum than that the 1st order maximum produced by laser 2.
Using a previous result y2 - y1
0.34 - 0.25 = 0.09m
In the young's experiment the angular position of intensity maxima and minima of interference is determined by the separation between the slits, an integer number known as order of interference, and the wavelength of the light used.
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a block is released from rest at point p and slides along the frictionless track shown. at point q, its speed is:
Without any friction (= the force that makes it difficult for an object to slide across or move through something):
Is an air track frictionless?Regardless of any internal changes that may occur, including energy dissipating in one form and reappearing in another, the total energy of an isolated system remains constant.A friction drive belt, as implied by its name, is a track that is tensioned to smooth rubber wheels much like a conveyor belt. The tractive force generated for propulsion is the friction between the drive wheels and the roller path of the track.happening very easily without anything to make it slower or more difficult: We need completely frictionless trade, without tariffs or border checks. The application offers frictionless downloading and sharing.An air track is a scientific device used to study motion in a low friction environment. Its name comes from its structure: air is pumped through a hollow track with fine holes all along the track that allows specially fitted air track cars to glide relatively friction-free.Block is released from point p
Track is frictionless
height travels from p to q
(h1-h2 )
(optional energy ) p =Q ( kinetic energy)
mg( h1 - h2) = 1/2mv^2
2g(h1-h2) = v^2
###
(√2g ( h1-h2 ) = v )
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solution considern >3 lines in general position in the plane. prove that these lines form at least n - 2 triangles.
In general, if there are n>3 lines in the plane. Then we can say that at least n-2 triangles are formed by these lines.
A triangle needs a minimum of three lines to be formed. The sum of two sides of triangle is said to be greater than the third side.
Let us consider the following diagram, where each line is labelled with a letter, A-B-C-D-E
As each line intersects with at least one other line, there are at least n-2 triangles that can be formed. For example, triangle ABC, triangle ABD, triangle ABE, triangle BCD, triangle BDE, triangle CDE are the triangles that can be formed from our five lines.
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Gas a and gas b (both unreactive) are allowed to mix. The total pressure is found to be 3. 50 atm. If gas b was measured initially at 1. 25 atm, what is the partial pressure of gas a?.
If the entire quantity of the beginning material alone were to be occupied at the same temperature, the partial pressure inside a gas mixture would be the hypothetical pressure of that constituent gas. Gas an is under 2.25 atm of partial pressure.
By pressure, what do you mean?The perpendicular force per unit area, also known as the stress at a point within a confined fluid, is referred to as pressure in the physical sciences.
The purpose of pressure measurementThe manufacturing process in many different sectors depends heavily on gauging a substance's pressure. To assess the product's consistency and quality, it's critical to collect precise data that has meaning. These factors make having precise sensors essential for gathering this data.
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a student in an electronics lab is studying the electrical properties of pieces of graphite
A cylindrical bit of graphite with a radius of 0.7 mm is subjected to a potential differential of 24 V along its length by the student.
What use does graphite serve?Pencils, lubricants, crucibles, casting facings, polishes, arc lights, batteries, electric motor brushes, and nuclear reactor cores all include graphite. China, India, Brazil, N.korea, and Canada all mine large amounts of it. Graphite was inadvertently created for the first time by Edward G.
What is distinctive about graphite?It is special in that it possesses traits common to both metals and non-metals, including flexibility without being elastic, high thermal and electrical conductivity, high refractoriness, and chemical inertness. Due to its low X-ray and neutron absorption, graphite is a particularly useful material.
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Choose the incorrect statement regarding bile. A. Bile contains enzymes for digestion. B. Bile functions to carry bilirubin formed from breakdown of worn- out RBCs. C. Bile functions to emulsify Yats. D. Bile is both an excretory product and a digestive secretion. Which of the following is not a factor that helps create the stomach mucosal barrier? A. tight junctions of epithelial mucosa cells. B. replacing of damaged epithelial mucosa cells C. bicarbonate rich juice released from pancreas D. thick coating of bicarbonate-rich mucus. E. none of the above A ruptured appendix is life threatening because? A. It dramatically lowers the immune system B. It directly affects the digestive process C. It can cause peritonitis. D. all of the above The bolus is liquefied in the chyme. and it is now called stomach
According to the research, the correct answer for each question is:
The incorrect statement regarding bile is Option A "Bile contains enzymes for digestion."The correct choice regarding which is not a factor that helps create the stomach mucosal barrier is Option C. "Bicarbonate rich juice released from pancreas"The correct choice regarding a ruptured appendix is Option C. "It can cause peritonitis."What is bile?It is a yellowish juice that is secreted by the liver responsible for the absorption of fats composed of bile salts, proteins, cholesterol.
What is stomach mucosal barrier?It is the lining membrane of the digestive tract is composed of epithelial cells and is responsible for the production of gastric juice and a layer of mucus gastric and duodenal epithelial cells that secrete bicarbonate from their apical surfaces.
What is a ruptured appendix?It is the acute inflammation of the appendix that produces an acute abdomen and tends in its evolution to perforation with peritonitis produced by bacteria or irritating substances.
Therefore, we can conclude that according to the research, bile helps fats to be absorbed and doesn't contain enzymes for digestion, mucosal barrier protects the stomach and peritonitis can be caused by acute infections such as a ruptured appendix.
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what does a frequency of recombination of 50 indicate
A frequency of recombination of 50% indicates that the genes are independently assorting.
Describe the gene?A gene is known as the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, it is known that genes vary in size from a few hundred DNA bases to more than 2 million bases.
A frequency of recombination of 50% indicates that the genes are independently assorting which means that the inheritance of alleles at the two loci are independent. If the recombination frequency is less than 50% we say the two loci are linked.
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If you use the relativistic velocity-addition formula to add everyday velocities, you will get
A) nonsense.
B) a significantly better result than if you add them classically.
C) a result almost identical to the classical result.
If you use the relativistic velocity-addition formula to add everyday velocities, you will get a significantly better result than if you add them classically.
We limit our consideration of velocity addition to one-dimensional motion for the sake of simplicity. In one-dimensional motion, speeds typically add up like regular numbers.
Consider a situation where a girl is traveling in a sled at a speed of 1 m/s in relation to an observer. She launches a snowball at a speed of 1.5 m/s in relation to the sled, first forward and then back.
Assume that v is the sled's velocity in relation to the Earth, u is the snowball's velocity in relation to the observer who is on the ground, and u' is the snowball's velocity in relation to the sled.
Case 1 -
As a result, u=1.0 m/s+1.5 m/s=2.5 m/s when the girl launches the snowball forward. Because the snowball is thrown forward from a moving vehicle, it makes perfect intuitive sense that it will move closer to the observer on Earth.
Case 2-
u=1.0 m/s -1.5 m/s=-0.5 m/s is the velocity at which the girl is throwing the snowball backward. The snowball is moving away from the observer on Earth when there is a minus sign.
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(c) complete the table to represent the relationship between volume and surface area of a spherical structure surrounded by a membrane.
The table represents the relationship between the volume and surface area of a spherical structure surrounded by a membrane just remember that the ratio is 1:3 and 1:1.
The surface area to volume ratio of an object is the ratio of the two measurements. The ratio of surface area to volume. Shows a comparison of the outer size and inner volume of an object. A small, thin object has a large surface area compared to its volume.
Increasing the surface area of a cell increases the amount of material that diffuses into the cell. As volume and surface area increase, volume increases more rapidly, so for every doubling of cell volume, the surface area available for uptake is halved. The amount of surface area per unit volume of an object or collection of objects.
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Are these statements about the Fluid mechanics true?
Statement 1: Fluid mechanics is a branch in chemistry that involves study of fluids.
Statement 2: Fluid mechanics can be divided into 2 major categories.
a) True, False
b) True, True
c) False, True
d) False, False
Announcement 1: Fluid mechanics is a branch of chemistry that involves having a look at fluids: c) False, True
Fluid mechanics is the branch of physics concerned with the mechanics of fluids and the forces on them. It has programs in an extensive variety of disciplines, such as mechanical, aerospace, civil, chemical, and biomedical engineering, geophysics, oceanography, meteorology, astrophysics, and biology. Fluid mechanics is the look at of the forces of the fluid and the way fluids flow. Fluid mechanics may be divided into parts: fluid statics and fluid dynamics. Fluid statics is the observation of fluids at rest, and fluid dynamics is the study of fluids in motion.
Fluid mechanics is the look at fluid behavior (beverages, gases, blood, and plasmas) at relaxation and in movement. Fluid mechanics has a huge variety of packages in mechanical and chemical engineering, organic structures, and in astrophysics.
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the pulsar in the center of the crab nebula (shown in the figure) is the remnant of a supernova that occurred in a.d. 1054. the current power output of this pulsar is pcrab
The approximate factor by which the power output of this supernova has declined since its explosion is 2 * 10⁻¹⁰
Rate of power output's decline = Current power output / Initial power output
Current power output = 10²⁸ W
Initial power output = 5 * 10³⁷ W
Rate = 10²⁸ / 5 * 10³⁷
Rate = 2 * 10⁻¹⁰
To convert this rate into a percentage value, multiply this value by 100.
Rate = 2 * 10⁻¹⁰ * 100%
Rate = 2 * 10⁻⁸ %
Therefore, the rate of decline is 2 * 10⁻¹⁰
The given question is incomplete. The complete question is:
The pulsar in the center of the crab nebula (shown in the figure) is the remnant of a supernova that occurred in AD 1054. the current power output of this pulsar is 10²⁸ W and initially the supernova has a power output of 5 * 10³⁷. Calculate the approximate factor by which the power output of this astronomical object has declined since its explosion.
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After taking a hot shower, James steps out of the shower onto the tile floor. The tile felt cold to his feet. Which explanation below best describes James' experience?A.Heat from his feet is transferred to the tile floorB.Heat from the tile floor is transferred to his feetC.Cold from the tile floor is transferred to his feetD.Cold from his feet is transferred to the tile floor
The tile felt by James through his feet is due to the phenomenon on conduction. A) The heat from his feet gets transferred to the cooler tile.
When two objects are touching, and the objects each have a different temperature, then there is a transfer of energy from the hotter to the cooler one. You experience conduction throughout your day. For example, conduction explains why a tile floor feels cold on your feet (the energy from your warm foot is being transferred to the cooler tile floor) or an item taken from a freezer feels cold in your hands (the energy from your warm hand is flowing toward the item you took from the freezer).
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Label the photomicrograph of thick skin. Stratum corneum Stratum basale Stratum granulosum Stratum lucidum Epidermis Dermis Stratum spinosum
The Label of the photomicrograph of thick skin is given in the image attached.
What factors affect skin thickness?A significantly thicker epidermis, the skin's top layer, is what gives thick skin its thickness. The stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum—the four top layers of the epidermis—are particularly responsible for the bulk of thick skin.
Therefore, note that Thick skin lacks hairs, sebaceous glands, and apocrine sweat glands and has a thinner dermis than thin skin. Fingertips, palms, and the soles of your feet are examples of places with thick skin because they are frequently subjected to abrasion.
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when a movie on a film is projected
A specific number of frames per minute are processed by the projector when a motion picture on film is shown.
What is motion and example?Motion is indeed the open borders of a body in relation to time. For instance, the fan, the carpet's dust blowing off of it, the water running from the taps, a ball rolling about, a moving car, etc. Even for the universe is always changing.
Why do you mean by motion?Movement, the act of process of changing or shifting locations or positions. ability to move with the force of a physical human. gait is the term for the way a person walks. a gesture; a movement or shift in posture.
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How does the force that causes the water to leave the rocket compare to the force that causes the rocket to launch?.
The force that causes the water to exit the rocket is equivalent but opposite in direction to the force that causes the rocket to launch.
What is the significance of force?Force can cause a still body to move. It has the ability to either stop or slow a moving body. It has the ability to increase the speed of a moving body. It can also affect the shape and size of a moving body as well as its direction. A force exerted on an object causes it to change shape or size, begin or stop moving, accelerate or decelerate. When two things contact, they exert a force on one other; these exerted forces are equal in size but opposite in direction. The strong force is thought to be nature's most powerful force. The electromagnetic, weak, and gravitational forces follow in declining sequence.
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