An aluminum can is filled to the brim with a liquid. The can and the liquid are heated so their temperatures change by the same amount. The can's initial volume at 6 °C is 7.0 × 10-4 m³. The coefficient of volume expansion for aluminum is 69 x 106 (C°) 1. When the can and the liquid are heated to × 78 °C, 7.8 x 106 m3 of liquid spills over. What is the coefficient of volume expansion of the liquid?
The coefficient of volume expansion of the liquid, βliquid is 2.24 * 10⁻⁴ (C°)⁻¹.
What is the coefficient of volume expansion of the liquid?The coefficient of volume expansion of the liquid is determined as follows:
Let the initial volume of the object be V₀
The change in the volume of the object will be ΔV
The expression for the change in the volume of the object when the temperature of the object changes by ΔT is:
ΔV = βV₀ΔT
where;
β is the coefficient of volume expansion
The data provided is as follows;
The initial volume of liquid and aluminum can, V₀ = 7.0 * 10⁻⁴ m³
The coefficient of volume expansion for aluminum = 69 x 10⁻⁶ (C°)⁻¹
The volume of liquid that spilled out, ΔV = 7.8 * 10⁻⁶ m³
Change in temperature, ΔT = (78 - 6)°C
ΔT = 72 °C
The difference between the change in volume of the liquid and the can is equal to the amount of liquid that spilled out.
ΔV = (βV₀ΔT)liquid - (βV₀ΔT)can
βliquid = ΔV/V₀ΔT + βcan
βliquid = (7.8 * 10⁻⁶ m³) / (7.0 * 10⁻⁴ m³ * 72 °C) + 69 x 10⁻⁶ (C°)⁻¹
βliquid = 2.24 * 10⁻⁴ (C°)⁻¹
Learn more about the coefficient of volume expansion at: https://brainly.com/question/13961424
#SPJ1
Part A
Choose the correct free body diagram for the case when the ball is at its lowest point
The correct free body diagram for the case when the ball is at its lowest point is tension pointing upwards and weight of the object pointing downwards.
What is the tension in the string at the lowest point in circular path?
The tension in the string at the lowest point in a circular path is equal to weight added to centripetal force required.
Mathematically, the formula for the tension in the string is given as;
T = W + ma
where;
W is the weight on the stringm is the mass of the objecta is the acceleration of the objectAt the lowest point the acceleration of the object is zero, a = 0. The new equation becomes the following;
T = W
The free body diagram of the tension and the weight of the object is given as;
↑ T
Ф
↓ W
Thus, the correct free body diagram consist of the tension force pointing upwards and the weight of the object pointing downwards.
Learn more about free body diagram here: https://brainly.com/question/21691401
#SPJ1
When you are sitting in a chair your body exerts a on the chair and the chair exerts the force back?
When we sit on the chair, the chair is actually plying a force back on us in response to our force wielded upon the president because of Newton's third law.
What is Newton's third law?
The third law of Newton asserts that when bodies interact, they ply forces that are equal in size and directed in the contrary direction. Another name for the third law is the law of action-reaction law. This law is pivotal for understanding issues with static balance, where all pressures are in balance, but it also remains true for bodies moving at a constant or accelerated speed.
It does not only use secretary styles the forces it represents are factual forces. For illustration, a book laying on a table exerts downcast pressure equal to the weight of the book on the table. The table produces an equal and contrary force on the book in agreement with the third law.
Thus, According to Newton's third law there's an equal and contrary action and counteracts us so that neither move.
To know more about Newton's third law: brainly.com/question/974124
#SPJ4
A boy is skiing down a hill with a velocity of 3.5 m/s. It takes 8.5 seconds to
reach the bottom. What distance is the skier traveling?
O 0.41 meters
O29.75 meters
O 2.43 meters
O 12 meters
Answer:
B. 29.75 meters
Explanation:
Distance = speed x time
Distance = 3.5 x 8.5
Distance = 29.75 m/s
Suppose two identical objects are sitting 1 meter apart. The gravitational force between them is 9N. What would the gravitational force be if they were moved to 3 meters apart?
If the distance between the objects is increased, the new force would be 1N
What is the gravitational force?The term gravitational force has to do with the force that acts between two masses that are on the earth's service.
Now we know that the force that acts on the object can be given by;
F = Gm1m2/r^2
F = force that acts on the object
G = gravitational constant
m1 and m2 = masses of the objects
r = distance about
We can now see that the force that acts on the object would be 1 N.
Learn more about Gravitational force:https://brainly.com/question/12528243
#SPJ1
Two equal-mass stars maintain a constant distance
of 8.0 x 10^10 m and rotate about a point mid-
way between them at a rate of one revolution every
12.6 yr.
(a) Why don't the two stars crash into one
another due to the gravitational force between
them?
(b) What must be the mass of each star?
A. Centripetal force acting on the two stars is the reason why the two stars will not crash into one another
B. The mass of each stars, given they maintain a constant distance of 8×10¹⁰ m is 7.68×10²⁷ Kg
A. Why don't the two stars crash into one another?
Centripetal force is the force that acts to keep an object moving in a circle. Since the two stars undergoes revolution, this means they rotate in a circle. Thus, centripetal force is acting on them.
Therefore, we can say that the two stars will not crash into one another due to the centripetal force
B. How do I determine the mass of each stars?
We can obtain the mass of each stars as illustrated below:
F = GM₁M₂ / r²
Note: They rotate mid-way. Thus distance apart (r) = 2r
F = GM₁M₂ / (2r)²
F = GM₁M₂ / 4r²
Also, centripetal force is given as:
F = mv² / r
Thus, we have:
mv² / r = GM₁M₂ / 4r²
But
v = 2πr / T
v² = (2πr / T)² = 4π²r² / T²
M₁ = M₂ = m
Thus, we have
m4π²r² / rT² = Gmm / 4r²
4π²r / T² = Gm / 4r²
Cross multiply
mGT² = 4r² × 4π²r
mGT² = 16π²r³
Divide both sides by GT²
m = 16π²r³ / GT²
From the question given, we have:
Distance (r) = 8×10¹⁰ mPeriod (T) = 12.6 years = 12.6 × 3.154×10⁷ = 3.97×10⁸ sGravitational constant (G) = 6.67×10¯¹¹ Nm²/Kg²Pi (π) = 3.14Mass of each stars (m) =?m = 16π²r³ / GT²
m = [16 × 3.14² × (8×10¹⁰)³] / [6.67×10¯¹¹ × (3.97×10⁸)²]
m = 7.68×10²⁷ Kg
Thus, the mass of each stars is 7.68×10²⁷ Kg
Learn more about mass:
https://brainly.com/question/20488465
#SPJ1
A plastic bag is falling slowly to the ground. The only forces are gravity which is 20 N and air resistance which is 8 N. What is the net force of the parachute? What direction is it moving?
1. The net force of the parachute is 12 N
2. The plastic bag is moving towards the ground
1. How do I determine the net force?
Net force is defined as the difference between the forces acting on an object in opposite directions
Net force = Opposite force - force of pull
With the above information, we can determine the net force on the parachute as follow:
Force of gravity = 20 NForce of resistance = 8 NNet force =?Net force = Force of gravity - Force of resistance
Net force = 20 - 8
Net force = 12 N
Thus, the net force is 12 N
2. How do I determine the direction?
From the question given above, we were told that:
Force of gravity = 20 NForce of air resistance = 8 NSince the force of gravity is greater than the force of air resistance, it means the bag is moving towards the ground
Learn more about net force:
https://brainly.com/question/18109210
#SPJ1
A mass on the end of a length of rope is being swung in a circle of radius 3.2 m at an angular velocity of 0.71 rad/s. How fast is it moving?
Answer:
[tex]\huge\boxed{\sf v = 2.27\ m/s}[/tex]
Explanation:
Given data:Angular velocity = ω = 0.71 rad/s
Radius = r = 3.2 m
Required:Linear velocity = v = ?
Formula:v = rω
Solution:v = (3.2)(0.71)
v = 2.27 m/s
[tex]\rule[225]{225}{2}[/tex]
A mass hanging from a spring oscillates with a period of 0.15 s. Suppose the mass and spring are swung in a horizontal circle, with the free end of the spring at the pivot. What rotation frequency, in rpm, will cause the spring’s length to stretch by 16%?
The frequency of 160 rpm will cause the spring’s length to stretch by 16%.
What is the time period?The time period can be described as the time taken by oscillators to finish one complete oscillation.
[tex]{\displaystyle T =2\pi \sqrt{\frac{m}{k} }[/tex]
Given, the time for oscillation, T = 0.15s
The length of the spring changed, Δr/ r = 0.16
By rearranging the equation:
[tex]{\displaystyle {\frac{k}{m }=\frac{4\pi ^2}{T^2}[/tex]
k (Δr) = mω²r,
[tex]{\displaystyle \omega =\sqrt{\frac{k}{m}. \frac{\triangle r}{r} }[/tex]
[tex]{\displaystyle \omega =\sqrt{\frac{4\pi ^2}{T^2}. \frac{\triangle r}{r} }[/tex]
[tex]{\displaystyle \omega =\sqrt{\frac{4\pi ^2}{(0.15)^2}. (0.16) }[/tex]
ω = 16.75rad/s
ω = 16.75 × 60 / 2π rpm
ω= 160 rpm
Therefore, the frequency of the oscillation will be 160 rpm.
Learn more about time period, here:
https://brainly.com/question/29013016
#SPJ1
What is the total positive charge of the nucleus?
The total positive charge of the nucleus is the product of number of protons in a nucleus and the charge of a proton.
A nucleus of an atom consists of protons and neutrons. Neutrons have no charge. Protons are positively charged particles. So total positive charge of the nucleus is the total charge of all the protons present in the nucleus of an atom.
Charge of a proton = 1.6 * 10⁻¹⁹ C
The magnitude of charge of a proton is the same as the charge of the electron. Since the electron is negatively charged, the charge of an electron is - 1.6 * 10⁻¹⁹ C
To know more about nucleus of an atom
https://brainly.com/question/13071433
#SPJ4
Use Newton's second law to answer the following:
2nd Law Equations:
F = ma
F
==
m
a=
F= net force (N) m= mass (kg) a= acceleration m/s²
4) A 55 kg athlete is accelerating at a rate of 1.5 m/s². Calculate the net force her running.
m
11
FIA
a
Answer:
82.5N
Explanation:
Newton 2nd law of motion says that momentum is directly proportional to the force applied.
F=change in Momentum
F=Mv-Mu/t
F=M(v-u)/t
remember that acceleration is V-U/T according to the first law of motion.
F=MA
Now for the question
M(mass)=55kg
A(acceleration)=1.5m/s²
F=MA
F=55×1.5
F=82.5N
pls mark as brainliest.
Thanks
What is a limited quantity exception?
The maximum quantity per inner package or article for shipping risky commodities in limited quantities is the limited quantity exception.
The term "limited quantity" could refer to a specific object that is only available in a limited number or to a sort of resource that is only available in a limited amount. A limited amount often refers to an item's limited availability, such as a limited edition item or a product with a limited supply. If you are exporting small amounts of dangerous items, you may be eligible for a Limited Quantity Exemption. This exception is a simpler regulatory option to fully regulate all DG shipments. If your goods are eligible for this exemption, a number greater than zero will appear in the column "Limited Quantity Index." Even if dangerous commodities are carried in restricted or acceptable quantities, there are still packing and labeling standards that must be met. Some national regulations do not include provisions for restricted quantity and excluded quantity.
Learn more about limited quantity here:
https://brainly.com/question/29626761
#SPJ4
Block A has a mass of 10 kg and block B has a mass of
6 kg. They are connected by a rope and pulley system as
shown in the diagram on the right.
a. What must the coefficient of static friction be
between block A and the table for neither block to
move?
Whenever there is no movement, acceleration will be 0. Static friction has a coefficient of 0.6.
How is friction defined?A force called friction keeps two solid things from slipping or rolling over one another. Although frictional forces, such the traction required to walk while slipping, may be advantageous, they can provide a significant amount of resistance to motion.
What 3 forms of friction are there?The friction of a moving item is inversely proportional to its normal force and runs perpendicular to it. The interaction of a car's tires with the road causes friction, specifically three types of friction: rolled friction, beginning friction, and sliding. This friction is what allows humans to operate cars at all.
Briefing:Block B's weight W is equal to milligrams.
W = 6 × 9.8
W = 58.8 N
T = μN = W
N on block A = mg
N = 10 × 9.8
N = 98 N
To determine the static friction coefficient, substitute N and T.
58.8 = 98μ
μ = 58.8/98
μ = 0.6
To know more about friction visit:
https://brainly.com/question/13000653
#SPJ4
The graph represents the reaction 2H₂ +0₂2H₂0 as it reaches equilibrium. Based on the graph, which two statements about this reaction are true?
A. After point 2, the rate of formation of products is equal to the rate of formation of reactants.
B. At point 2, the concentrations of H2O,H2, and H2 are all changing toward their equilibrium concentrations.
C. The rate of formation of products is equal to the rate of formation of reactants only after point 4.
D. At point 1, more reactants are converted to products than products are converted to reactants.
At point 1, more reagents are converted to product than products are converted to reactants, and at point 2, the concentrations of H20, O2, and H2 are all moving toward their equilibrium concentrations.
What are equilibrium and an example?The word equilibrium is derived from the Latin word libra, which means weight or balance.an open book that is lying flat. a vehicle that is going steadily. a chemical reaction that has equal forward and reverse reaction rates.
What practical applications of equilibrium exist?In order to sustain a blood pH around 7.35 and 7.45, carbon dioxide (H2CO3) & bicarbonate anion (HCO3) are buffers found in human blood. Death may result from a value of greater than 7.8 or less than 6.8.
To know more about equilibrium visit:
https://brainly.com/question/14288944
#SPJ4
which best explains the law of conservation of mass
The law of conservation of mass emphasizes the fact that it is not possible to create or destroy the mass in this universe. Mass just changes its form from one to another, it is never created nor destroyed.
The statement mentioned above states that the mass of reactants and products have equal mass irrespective of the physical state.If the mass of reactants and products becomes unequal, then it would contradict the law of conservation. However, it is clearly mentioned that the mass of reactants and products will remain the same, hence complimenting the law of conservation of motion.Therefore, the law of conservation of mass is best described by - The mass of the reactants and products is equal and this mass is not dependent on the physical state of the substances.
To know more about mass, refer: https://brainly.com/question/19694949
#SPJ4
[NOTE: THIS IS AN INCOMPLETE QUESTION. THE COMPLETE QUESTION IS: Which best describes the law of conservation of mass?
(A) The coefficients in front of the chemicals in the reactants should be based on the physical state of the products.
(B) Products in the form of gases are not considered a part of the total mass change from reactants to products.
(C) When reactants contain both a solid and a liquid, the solid counts toward the overall mass and the liquid does not.
(D) The mass of the reactants and products is equal and is not dependent on the physical state of the substances.]
What do you know about the force that you exert on the chair?
The normal force exerted by the chair on us, when we sit on the chair.
When an object interacts with another object, it feels a push or a pull. Each object that two objects make contact with experiences a force. Once the encounter is over, the force between the two objects is gone. Forces are merely interactions; they do not exist independently.
When two objects interact and appear to be in physical contact with one another, contact forces are generated. Several types of contact forces include frictional forces, tensional forces, normal forces, air resistance forces, and applied forces. Even when two interacting objects are far apart from one another, action-at-a-distance forces are still present.
To know more about force visit : brainly.com/question/13191643
#SPJ4
PLEASE HELP
Suri, a scientist at NASA, created models of each planet. The models contain the same properties as the actual planets, but at a smaller scale. The first property being tested is the density of the planets. Suri places each planet into a container of water. Which planet will float on top of the water?
A) Mercury
B) Venus
C) Neptune
D) Saturn
Answer:
Explanation:
Let's turn to the table of planetary densities:
Saturn will float in the water ( 0.7 g/cm³ < 1.0 g/cm³)
A 50kg student seated in a rolling chair throws a 10kg backpack to a friend. Which statement BEST describes the motion of the student relative to the backpack as it is thrown?
Answer:
m v + M V = 0 (after backpack is thrown)
Total momentum originally (m = backpack M = student)
Total momentum must still be zero after backpack is thrown because no external forces act on the system of student ant backpack
V = -m / M v speed of student opposite that of backpack
What is considered limited quantity?
A limited quantity item is an item that is only available for a limited time or in a limited quantity. An example of a limited quantity item would be a limited edition item that is only available for a limited time.
What is limited quantity?
Dangerous goods that are shipped throughout small containers and packed in boxes as well as shrink-wrapped trays are referred to as limited quantities.
Some of the standard dangerous goods packaging and or labelling regulations do not apply to smaller quantities of hazardous materials packaged in individual bottles because they pose less of a risk than when they have been transported in larger volumes, but they must be identified by the a Limited Quantity Label.
The hazard class and division again for substance or item, the size of the inner receptacle, and the overall package weight all play a role that whether or not a hazardous material can be shipped as a Limited Quantity.
Therefore, the limited quantities are also subject to different upper and lower bounds under UN numbers, and some UN numbers need not allow LQ at all.
To learn more about limited quantity: brainly.com/question/27061777
#SPJ4
A coin is tossed vertically upward and reaches a maximum height of 0.90 m before it comesback down. With what velocity was it thrown, and how long was it in the air?
with explanation please
Answer:
how long the coin was in the air was about 45 how I got your answer was by dividing 900 by 20 bc when u divide u have to add a 0 so that's how I got 900 then I just divided and got 45
Obtain an expression for the viscous force acting on a sphere of radius r moving in a viscous fluid with velocity v, if the viscosity coefficient is η.
The force of viscosity is F = k r v η. Spherical balls of radius R are falling in a viscous fluid of viscosity η with a velocity v.
What is viscous force?
Viscosity refers to a material's capacity to resist movement between its layers. It is the force that resists relative motion between the layers. It is also known as viscous force.
What is viscous force formula?
In the above equation, the shear force is the viscous force, which is the only internal resistance that causes shear stress to develop along with the fluid layers. As a result, the viscous force formula will be given as. F=Aμdudy.
Hence F = k r v η is a correct answer.
To know more about viscous force follow link
https://brainly.com/question/25832132
#SPJ9
Two balls of clay are thrown and perfectly collide with each other. One ball of clay had mass of 42.9kg and a velocity of 58 m/s. The other ball of clay had a mass of 99.4 kg and an unknown velocity before the collision. If the velocity of the combined object was -38.6m/s after the collision. What was the velocity of the second clay ball before the collision?
Two objects have a perfectly elastic collision The first object has a mass of 34.2 kg and a velocity of 65.5m/s before the collision. The second object had a mass of 97.9kg and a velocity of -29.7 m/s before the collision. If the first object's velocity was -75.61m/s after the collision, what was the second objects velocity after the collision?
Answer:
19.59m/s
Explanation:
Using the law of conservation of linear momentum,
Total momentum before collision is equal to the Total momentum after collision.
Explain the difference between Pavlov's classical Conditioning, and Skinner's Operant
Conditioning, give examples to illustrate how behavior can be learned according to each
one of those conditioning. Explain the example after explaining the process.
Skinner's Operant Conditioning focus stressed that the consequences of a behavior will indicate if there is possibility of it being repeated and also the human behavior can be attributed to something in a person's environment.
Pavlov's classical Conditioning stressed that two stimuli can be linked together so that there can be new learned response in indivisuals .
Example of Pavlov's classical Conditioning is that a dogs could be conditioned to salivate at the sound of a bell if it was programmed to ring at the time of food.
Example of Skinner's Operant Conditioning is that of negative reinforcement which was demonstrated by placing a rat in Skinner box which then subjected to unpleasant electric current and make it to experience some discomfort.
What is Classical conditioning?Classical conditioning can as well be described as the Pavlovian or respondent conditioning which is the learning that do take place when two stimuli are linked together and they can bring about new learned response in a person or animal.
Operant conditioning was the one that stressed that the cause of human behavior can be linked to the something in a person's environment.
Learn more about conditioning at:
https://brainly.com/question/10399309
#SPJ1
How do you find the final velocity of a horizontal projectile?
The initial velocity of the ball in the x and y directions determines its velocity when it touches the ground. There is no force acting on the body in the x-direction, which is the horizontal direction.
It will therefore move horizontal direction at a steady speed. But the projectile's y component will continue to be affected by gravity, causing a downward force to act. The ball's x-direction velocity will therefore not vary as it approaches the earth, but its y-direction velocity will. In spite of the fact that it will be moving downward, the velocity in the y direction once it reaches the ground will be identical to its starting magnitude of horizontal direction. The product of the object's x and y velocities will equal its overall velocity. Therefore, the magnitude of velocity upon reaching the ground is (Vx)^2+ (Vy)^2, and at an angle, if the beginning velocities in the x and y directions are Vx and Vy, respectively.
Tan(tetha) = Vx/Vy
Learn more about velocity here
https://brainly.com/question/18084516
#SPJ4
11. Why do the lights in your home come on almost instantaneously when you turn, on the switch?
A - When the circuit is completed, there is a rapid rearrangement of surface charges in the circuit.
B - Charges store energy. When the circuit is completed, the energy is released.
C - Charges in the wire travel very fast.
D - The circuits in a home are wired in parallel. Thus, a current is already flowing.
E - Charges in the wire are like marbles in a tube. When the circuit is completed, the charges push each other through the wire.
Answer:
because its like that which do not hencintrate and prostate in the future work per week-20 Earning in the future and we are keen on the walls of our english and would like the same to happen as soon.
what hazard class are automotive batteries walmart
The automative batteries are the corrosive hazard class.
The chemical present inside the battery are very corrosive and poisonous in nature.
Also if the batteries are excessively charged they can burst and cause a huge damage.
There is also very huge disposal problem associated with the battery because the chemical present inside the battery contain acidic material which will decrease the quality of the soil if they are buried in soil.
The human skin is also very sensitive towards the corrosive material of the battery.
To know more about Batteries, visit,
https://brainly.com/question/5059264
#SPJ4
difference of low frequency and high frequency waves
Answer:
Waves with a higher frequency have crests that are closer together, so higher frequency waves have shorter wavelengths.
Explanation:
a boy is 3ft tall. if he jumps into a pond,which appear to be in less depth than 3ft,will he sink or not? give reason
No, he will not sink. A 3ft tall person will not be able to submerge in a pond that is less than 3ft deep.
What is submerge?
You immerse your body in water when you swim. Your head isn't submerged if it's above the water; it's just wet. You should immerse a washcloth in a bowl of water to thoroughly soak it. It is believed that William Shakespeare created the word "submerge." Although we cannot be certain of this, we do know that the word was first written down and subsequently read by someone when it appeared in the play Antony and Cleopatra.
To learn more about submerge
https://brainly.com/question/29465429
#SPJ4
On Earth - your weight will change depending on ______.
A. the weather
B. your mass
C. fig newtons
Answer:
C
Explanation:
This is because the weather has no account in the weight of an object and the mass of an object is always fixed
On Earth your weight will change depending on mass. The correct option is B.
What is weight?An object's mass is a measure of its inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted by gravity on the object, or the force required to support it.
On Earth, Newton's laws define the weight of a body (or any other object) as mass times gravitational acceleration (w = m x g). That is, the weight of an object is determined by the gravitational pull on it.
The weight of an object would differ on Earth and the Moon due to the influence of gravity. Basically SI unit of mass is the kilogram (kg).
Body weight measurement in sports is important for assessing body composition and tracking weight changes as a result of diet and exercise.
Thus, the correct option is B.
For more details regarding weight, visit:
https://brainly.com/question/10069252
#SPJ2
How will you convert an iron nail into a magnet with the help of electric current?
To finish the electromagnet, connect the copper wire's exposed ends to the opposing battery connections. A magnetic field is produced by current passing via the wire coiled around the nail.
What causes electric current?A loose electron is drawn to a proton to become neutral if an electron moves to the wire. Lack of electrons can result from pushing electrons from out their orbits. Electric current is the name given to the constantly moving electrons in wire.
What is electric current and its types?Electrons are moving constantly in current electricity. Direct current (DC) and dc voltage (AC) are the two types of current used in electricity (AC). Electrons move only in the direction of direct current. Direct current is produced by batteries. The resistance to potential difference ratio determines the current. It is displayed as (I). I = V/R is the formula currently in use.
To know more about Electric current visit:
https://brainly.com/question/2264542
#SPJ4