Using the same scale that was used to draw A and B, measure the length of the resultant, R, to determine its magnitude. The overall change in location in this case is 200 m east plus 400 m east, which equals 600 m east.
Displacement is characterized by the final position minus the starting position.
The displacement is only the difference between the locations of the two marks and is unrelated to the route used to get there. The total length of the path between the two markings, however, is the distance travelled.
Displacement and distance, however, are two distinct ideas. The total distance travelled is larger than the displacement between those two points if an object changes direction while travelling.
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a constant net force on a railroad car produces constant
A constant net force on a railroad car produces constant velocity.
What is force?Force is that which could cause an object to begin to move, or to change its direction, or even stop altogether. Thus force is able to affect the motion of an object that is moving along a begin path.
If the force is constant, then the velocity of the object does not change because the change in the velocity would be caused by a change in the magnitude of the force that acts on the object. Thus the net force remains the same and the velocity also remains the same.
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Missing parts;
A constant net force on a railroad car produces constant:
a. velocity
b. acceleration
c. both of these
d. neither of these
Cosmic background radiation detected from all directions in space provides evidence for the.
Cosmic background radiation detected from all directions in space provides evidence for the Big Bang Theory.
The Big Bang event is a bodily theory that describes how the universe elevated from a preliminary nation of excessive density and temperature. Diverse cosmological models of the Big Bang give an explanation for the evolution of the observable universe from the earliest acknowledged durations via its next big-scale shape.
The hassle generally comes from the time period "Big Bang". It brings to thought explosions, detonations, balloons being popped, and the whole lot being blown out to chicken basket hades.
Formation: whilst the sun gadget settled into its modern layout about four.5 billion years in the past, Earth shaped while gravity pulled swirling gas and dust in to become the third planet from the solar.
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Study the image.
A world map showing the Principal World Air Masses. The four major types of air masses are noted on the map.
Which air mass has formed immediately north of Antarctica in the image?
Study the image.
maritime polar
continental polar
maritime tropical
continental tropical
An air mass which has formed immediately north of Antarctica in the image (world map) showing the Principal World Air Masses is: A. maritime polar.
What is a weather map?In Geography, a weather map can be defined as a type of chart (publication) that is typically used to provide information about the average atmospheric condition of a geographical region over a specific period of time.
What is an air mass?An air mass can be defined as a large body of air which typically has almost uniform atmospheric weather condition such as temperature and humidity, at any given level of altitude.
This ultimately implies that, an air mass is characterized by an extremely cold atmospheric air that is commonly generated at the Northern and Southern poles.
Based on meteorological and geographical research, maritime polar air masses are formed at lower latitudes in the north of Antarctica, so as to produce rain and precipitations as shown in the image.
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Answer:
A) Maritime polar
Explanation:
Lebron is comparing flights departing from minneapolis. Which 2 ways could lebron find the flight with the fastest average speed?.
The fastest average speed is distance divide by time.
The fastest average speed = distance / time
s = d /t
Average speed is calculated by dividing the total distance that something has traveled by the total amount of time it took it to travel that distance.
Average speed measures the average rate of speed over the extent of a trip.
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T/F the vapor pressure of liquid chloroform, , is 100. mm hg at 283 k. a 0.487 g sample of liquid is placed in a closed, evacuated 500. ml container at a temperature of 283 k.
True. The vapor pressure of liquid chloroform, , is 100. mm hg at 283 k. a 0.487 g sample of liquid is placed in a closed, evacuated 500. ml container at a temperature of 283 k.
Explain pressure in a physics context.The physical force exerted on an item is known as pressure. The force applied per unit area is perpendicular to the surface of the objects. F/A is the basic pressure formula (Force per unit area). Pascals are the unit of pressure (Pa). Absolute, atmospheric, differential, and gauge pressures are all types of pressures. Pressure is the force exerted on a surface per unit area. When a force F is applied to area A, pressure P=F/A. Pressure is defined as force per unit area applied. The force is dispersed over a vast area (low pressure).
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2. What is the equivalent resistance (total resistance) of the series circuit shown at left?
The equivalent resistance in the series circuit is 130 ohm.
What is resistance?Resistance is the opposition to current flow in a electrical circuit.
To calculate the equivalent resistance of the resistors the series circuit, we use the formula below.
Formula:
Rt = R₁+R₂+R₃..........Equation 1Where:
Rt = Equivalent resistanceR₁, R₂, R₃ = Resistance of all the resistors connected in seriesFrom the image,
Given:
R₁ = 10 ohmR₂ = 20 ohmR₃ = 100 ohmSubstitute these values into equation 1
Rt = 10+20+100Rt = 130 ohmHence, the equivalent resistance is 130 ohm.
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an icy leftover planetesimal orbiting the sun is
An icy leftover planetesimal orbiting the sun is a comet.
What is a comet?A comet can be described as an icy, small Solar System object that, when passing close to the Sun, warms and starts to release gases, a process that is known as outgassing. This process forms a visible atmosphere or coma and is due to the effects of solar radiation and wind acting upon the nucleus of the comet.
Comet range from a few hundred meters to 10 kilometers across and are made of loose collections of ice, dust, and rocky particles. If sufficiently bright, a comet can be seen from Earth without a telescope.
Comets have eccentric elliptical orbits and short-period comets originate in the Kuiper belt which lies beyond the orbit of Neptune. Hyperbolic comets can be seen once through the inner Solar System.
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Rainwater contains dissolved substances that allow it to conduct electricity. Why would you not be
electrocuted if you walked under an electric transmission line during a rainstorm?
As the raindrops do not provide a continuous path to flow the electrons because the air between the rain droplets acts as an insulator, therefore, the person walking under an electric transmission line would not be electrocuted.
What is a electrical conductor?In physics, a conductor can be described as a type of material that allows the flow of charge in one or more directions. Electric current is produced by the flow of negatively charged electrons or ions in some cases.
Raindroplets have dissolved impurities which make them somewhat conductive of electricity, but conductors should be continuous to create a conducting path at normal voltages.
The electric current can only flow when there is a continuous path of conductive material providing a conductor for electrons to travel through. The continuous flow of electrons needs to be an unbroken path to allow it to flow.
Since the air can be considered an insulating material and an air gap separates prevents a continuous path has been broken therefore electrons cannot flow.
Therefore, due to the absence of the closed circuit, you would not be electrocuted during a rainstorm if you walked under an electric transmission line.
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A long, horizontal wire Ab rests on the surface of a table and carries a current I. A horizontal wire CD is vertically above wire AB , and is free to slide up and down on the two vertical metal guides C and D ( as shown in Fig) .Wire CD is connected through the sliding contacts to another wire that also carries a current I , opposite in direction to the current in wire AB . The mass per unit length of the wire CD is λ. To what equilibrium height h will the wire CD rise. assuming that magnetic force on it is wholly due to current in wire AB ?
The equilibrium height to which the wire CD will rise is given by the expression h = μ₀I² / 2π λg
What is magnetic field ?A region in which the force of magnetism acts is known as the magnetic field, and it surrounds magnetic materials or a moving electric charge. Moving magnetic dipoles and electric charges produce a magnetic field, which acts as a force field on other nearby magnetic dipoles and moving charges.
Magnetic field at a distance h produced by a current carrying wire
B = μ₀I/ 2πh
Magnetic force due to the present current carrying wire can be calculated by the formula
F = B I L
And we also know that F = mg
On equating these mg = B I L
( μ₀I/ 2πh ) I = ( m/ I ) g = λg
thus we get the value of h as
h = μ₀I² / 2π λg
Thus, the equilibrium height to which the wire CD will rise is given by the expression h = μ₀I² / 2π λg .
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a circular loop of wire with a radius of 13.0 cm and oriented in the horizontal xy-plane is located in a region of uniform magnetic field. a field of 1.7 t is directed along the positive z-direction, which is upward. for related problem-solving tips and strategies, you may want to view a video tutor solution of emf and current induced in a loop.
Emf and current induced in a loop is 39.17volts
How does current flow across a wire?A wire can also be made to conduct electricity by exposing it to a magnetic field. This process of producing electricity by employing a magnet is called electromagnetic induction. It operates because when the coil "cuts through" the magnetic field line, the magnetic field around it changes.
Calculation:
Radius r = 13cm = 0.13m
Area of the circular loop can be determined using the formula for area of a circle
A = π r²
A = π × 0.13²
A = 0.0530 m²
Magnetic field B = 1.7T in positive z direction
B = 1.7•k T.
If loop is remove from the field in the time interval
∆t = 2.3ms = 2.3×10^-3s
We want to find the average EMF and it is given as
ε = —∆Φ/∆t
The final flux is zero
Φf = 0
Where magnetic flux is given as
Φi = BA Cosθ
Where θ=0 since the area and the magnetic field point in the same direction.
Φi = BA Cos0
Φi = BA
Φi = 1.7 × 0.0530
Φi = 0.0901 Vs
Then, ε = —∆Φ/∆t
ε = —(Φf — Φi) / ∆t
ε = —(0-0.0901) / (2.3×10^-3)
ε = 0.0901 / (2.3×10^-3)
ε = 39.17V
The EMF is 39.17 Volts.
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A man walks for 2 hours at a speed of 3m/s. How far does he travel? give your answer in kilometres.
Answer:
the answer will be 3*120*60/1000=221.6 km ok mark me brainliest pls
consider the case when the constant a=3 and τ=4. plot the graph of y=3e−t/4.
The constant are a=3 and τ=4.
What are exponential functions?
The exponential function is a mathematical function of the form f(x) = ax. where "x" is a variable and "a" is a constant called the base of the function, which must be greater than 0. The most commonly used exponential base is the transcendental number e, which is approximately equal to 2.71828.
What is the formula of exponential function?
The exponential function is defined by the formula f(x) = ax. where the input variable x appears as an exponent. An exponential curve depends on the exponential function and the value of x.
The exponential function is an important mathematical function of the form:
f(x) = [tex]a^{x}[/tex]
Therefore, the constant a=3 and τ=4.
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PLEASE HELP WILL MARK BRAINLIEST IF YOU EXPLAIN HOW YOU GOT THE ANSWRR!!!!!
The statement that is correct about the tension forces that are acting on the body is that T1 + T2 = P.
What is tension?The term tension has to do with the force that acts on an object that is pulled by a rope. Thus the tension force does act along the rope that is pulling the object along.
Now we can see from the image that there is an object that is acted upon by forces and these forces are equal in magnitude to the weight of the object.
Having said that we can see that the weights of the objects are not all the same and then the resultant of the tension force that is acting on the masses as they are joined would be given as P. It is also important to note that all these forces are acting along the same direction thus the resultant of the tension forces can be obtained by an addition.
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Students are investigating charge separation in conductors. They have two initially neutral conducting spheres and two different kinds of cloths. The students want to determine if the cloths add the same kind of charge or opposite kinds of charge when rubbed on the spheres. Which of the following procedures will provide enough information to determine whether the cloths add the same or opposite charges?a. Rub one sphere with one cloth and the other sphere with the other cloth, and touch them together. Pull them slightly apart and see if they attract or repel.b. Rub one sphere with one cloth and the other sphere with the other cloth, and bring them close together without touching. See if they attract or repel.c. Rub each sphere once with one cloth then once with the other cloth, and touch them together. Pull them slightly apart and see if they attract or repel.d. Rub each sphere once with one cloth then once with the other cloth, and bring them close together without touching. See if they attract or repel.
Answer:
rgvy
Explanation:
urfgbv
what is mesothermal climates
Answer:
Mesothermal regions have moderate climates. They are not cold enough to sustain a layer of winter snow but are also not remain warm enough to support flowering plants (and, thus, evapotranspiration) all year.
Explanation:
Please give the brainliest.
The vapor pressure of methanol at is. Calculate the vapor pressure in and. Round each of your answers to significant digits.
Methanol has a vapor pressure of 126 at 25 °C.
What is the definition of vapor pressure?Vapor pressure features include: It is significant to remember that when a liquid boils, the pressure of its vapor equals the atmospheric pressure. For instance, the vapor pressure of water when it boils at sea level is 1 atmosphere because the surrounding pressure is also 1 atmosphere.
How is vapor pressure measured and what does it mean?It is the force applied to the unit area of the system's wall. The boiling point method and the transpiration method are the two main experimental techniques used to assess the vapor pressure at high temperatures.
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6. suppose you apply a force of 1 n to block a and a force of 2 n to block b. does it follow that block b must have twice the acceleration of block a? justify your answer using newton's second law.
Yes, block b must have twice the acceleration of block a but Only if B has the same mass as A.
Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector portions. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.
Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.
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help pleaseeeee
what is the meaning P in physics?
like in this formula P=mg
Answer:
Pressure is defined as the force per unit area: P = F/ A, or in terms of magnitude, P = mg/A, where mg is the weight of the fluid.
Explanation:
Which of the following is NOT
an agent of mechanical
weathering?
a. ice
c. acid
b. wind
d. gravity
a block is pulled along a surface of negligible friction by a spring scale that exerts a force f on the block. the mass of the block is 4kg, and the spring scale reads 10n. which of the following free-body diagrams can be used to show the magnitude and direction of all the forces exerted on the block as it is pulled along the surface?
The correct free-body diagram is the one shown in option C
What is the correct free-body diagram?We know that the free-body diagram could be used to identify the forces that are acting on an object. We know that the normal force that acts on an object must be equal to the weight of the object and this is represented as lines of equal length on the free-body diagram.
We can now see that the correct free-body diagram is one in which the magnitude of the force weight and the normal force is the same. Now the force on the spring would be shown as the forward force.
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which of the following moons would have the longer orbital period: (a) a moon 1 million km from the center of jupiter, or (b) a moon 1 million km from the center of earth? explain your reasoning or show your calculations.
A moon located one million kilometers from Jupiter's core.Earth is a part of the solar system, which is a part of the Milky Way galaxy.
What is the solar system?The Sun and the things that circle it make up the solar system, which is gravitation ally bound.The gravitational collapse of a massive interstellar molecular cloud gave it birth 4.6 billion years ago.The mass of the system is primarily concentrated in the Sun, with the planet Jupiter holding the majority of the remaining mass.
what is system bound by gravity ?In accordance with the minimal total potential energy principle, a gravitational bound system is maintained by having a gravitational potential energy that is lower (more negative) than the sum of the energies of its constituent parts when these are fully separated.
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Label the parts of a separated blood sample and the formed elements as seen on a blood smear Centrifuged Blood Sample Red blood cells White blood cell Peripheral Blood Smear Plasma RBC in smear Platelet White blood cells and platelets
Cells and cell fragments suspended in plasma make up the produced elements. Erythrocytes (red blood cells), leukocytes (white blood cells), and thrombocytes are the three types of produced elements (platelets).
What do you mean by blood smear ?A blood test called a blood smear reveals details on the quantity and composition of blood cells. It frequently occurs in conjunction with or as part of a complete blood count (CBC). An genetic condition known as sickle cell anemia causes the production of defective hemoglobin, which is the red pigment found inside red blood cells.
Your red, white, and platelet blood cells and their quantity and form are examined to determine whether they are normal. Parasites in your blood can also be found via a blood smear. Nowadays, computerized blood analysis is more typical. Blood smears, however, may still be regularly performed to check for specific disorders.Blood's primary component, plasma, is primarily made up of water with some proteins, ions, nutrients, and wastes mixed together. Carbon dioxide and oxygen are carried by red blood cells. It is the job of platelets to cause blood to clot. The immune system's white blood cells have a role in immunological response.To know more about Blood please click here ; https://brainly.com/question/920424
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Which of the following is not a unit of pressure?
atmosphere
psi
[tex]\mathrm{N} / \mathrm{m}^2[/tex]
[tex]\mathrm{mm}[/tex] of mercury
pascal
none of the above
Answer:
They are all units of pressure
Forces F1 , F2 , and F3 act on the structure of the figure, shown in an overhead view. We wish to put the structure in equilibrium by applying a fourth force, at a point such as P. The fourth force has vector components Fh and Fv . We are given that a= 1.51 m, b = 3.75 m, c = 1.40 m, F1 = 11.2 N, F2 = 7.43 N, and F3 = 4.78 N. Find (a) magnitude of Fh, (b) magnitude of Fv, and (c) d.
[tex]F_{h}[/tex]= 4.78 N , [tex]F_{v}[/tex]=18.63 N , d= 1.88 m
(a) Analyzing the horizontal forces (which add to zero) we find :
[tex]F_{3}=F_{h}[/tex]=4.78N
(b) Equilibrium of vertical forces leads to [tex]F_{v}=F_{1}+F_{2}[/tex]= 18.63 N
(c) Computing torques about point O, we obtain
[tex]F_{v}.d=F_{2}.b+F_{3} .a[/tex]
[tex]d=(F_{2}.b+F_{3} .a)/F_{v}[/tex]
[tex]d=1.88[/tex] m
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question the computer output below shows the result of a linear regression analysis for predicting the concentration of zinc, in parts per million (ppm), from the concentration of lead, in ppm, found in fish from a certain river. which of the following statements is a correct interpretation of the value 19.0 in the output?
A correct reading of the value 19.0 in the output of a linear regression analysis is that there is a projected rise of 19.0 ppm in the concentration of zinc for every increase of 1 ppm in the concentration of lead discovered in the fish.
In statistics, a linear method known as linear regression is used to describe a scalar response and one or more explanatory factors.
Linear regression analysis is used to forecast the value of a variable based on the value of another variable. The dependent variable is the one you're trying to forecast. The variable you are using to predict the value of the other variable is known as the independent variable.
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an ice hockey puck is tied by a string to a stake on rough ice and slides around in a circle until it comes to a stop. what is the sign of the work done by the tension in the rope as it slides to a stop?
The rope slides to a stop with no work being done by the tension in the rope.
Which of Newton's equations of motion best describes how a hockey puck would move if there was no external force acting on it as it slid around the ice?first rule of Newton If not affected by a net external force, an item at rest or in motion maintains its state of motion at a constant speed.
A hockey puck striking is governed by what rule of motion?The First Law of Motion by Newton Ice hockey is a sport that can help us understand Newton's laws of motion. Until pushed to change its condition by a net force, an object stays at rest or moves at a constant speed (speed in a constant direction).
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wo pieces of clay are moving directly toward each other. one piece having mass 300~\text{g}300 g is moving to the right at a speed of 1~\text{m/s}1 m/s. the other piece has mass 600~\text{g}600 g and is moving to the left at a speed of 0.75~\text{m/s}0.75 m/s. when they collide, they stick together and move as one piece.
The percentage of the total initial kinetic energy that is lost during the impact is 11/17J. Because two bits of clay are travelling straight toward one another at a speed.
They stick together and move as a unit when they crash into each other. A moving object or particle's kinetic energy, which depends on both mass and speed, is one of its characteristics. The type of motion can be vibration, translation, rotation around an axis, or any combination of these. Kinetic energy is a type of energy that an item or particle possesses as a result of motion.
Piece weight is 300 g.
1 m/s for each piece's speed
The other portion weighs 600 g.
0.75 m/s is the speed of the other piece.
making use of the kinetic energy formula
K.E = 1/(m1+m2)v2 K.E = 1/(300*10-3+600*10-3)*(-0.5)2\s
K.E = 0.1125J
Energy wasted equals 11/17J - 0.1125/0.31875 energy lost
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The complete question is -
Two pieces of clay are moving directly toward each other. When they collide, they stick together and move as one piece. One piece having mass 300 g is moving to the right at a speed of 1 m/s. The other piece has mass 600 g and is moving to the left at a speed of 0.75 m/s. What fraction of the total initial kinetic energy is lost during the collision?
How do you find the speed of an object traveling in a circular path if you know its radius and the time it
takes to complete one lap?
Answer:
Objects moving in circles possess a speed which is equal to the distance travelled per time of travel. By multiplying the rotational frequency with the circumference, we can determine the average speed of the object.
A long thin wire has a uniform positive charge density of λwire= 2.5 C/m. Concentric with the wire is a long thick conducting cylinder, with inner radius 3 cm, and outer radius 5 cm. The conducting cylinder has a net linear charge density of -4 C/m. 1. Choose Gaussian surface inside the conductor
2. Use Gauss’ Law to calculate the charge enclosed
Surface of the conductor, 0.02mm
What is the Gauss law and how is it used?According to Gauss's law, the electric charge enclosed in any closed surface immediately proportionally affects the total quantity of electric flux travelling through it. Gauss's Law is mostly used to determine the electric field resulting from infinite symmetries, such as a uniformly charged straight line.
What makes it the Gauss law?The remarkable German mathematician and physicist Karl Friedrich Gauss is recognized by the law's name. The amount of field lines that cross a surface affects how much electricity flows through it. Note that this indicates that the magnitude is inversely proportional to the area of the field that is perpendicular to it.
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What is the magnitude b of the magnetic field at the location of the charge due to the current-carrying wire?.
The magnetic field direction at the position of the charge produced by the current-carrying wire can be determined using the right hand rule.
The magnetic field is the area surrounding a magnet where magnetism's effects are felt. We use the magnetic field as a tool to describe how the magnetic force is distributed in the vicinity and inside something magnetic in nature.
The magnetic influence on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field. A force perpendicular to the charge's own velocity and the magnetic field acts on it when the charge is travelling through a magnetic field.
While opposed poles are drawn to one another, like poles repel one another. When you rub iron against a magnet, its atoms' north-seeking poles align in the same way.
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