PHYS6AL Lab 3 (Energy Transformation)

I'm trying to understand the different types of energies.  I understand the definitions, but when I apply them to situations, it doesn't make much sense to me. I have the following: A. Entrophy - measure of the amt of disorder, or randomness in a system B. Kinetic Energy - Energy in Motion C. Heat - kinetic energy contained in the random motion of atoms & molecules D. Chemical Energy - type of potential energy which arises from the arrangement of atoms and be release in chemical reactions E. Conservation of Energy: Kinetic to Potential Energy - its not possible to destroy or create energy F. Conservation of Energy: Potential to Kinetic G. Potential Energy - Energy an object has because of its location or structure   When I try to apply to the following, I come up with this: A: A Glass falls off the shelf & breaks B. An orange falling from a tree C. During exercise you get extremely hot. D Animals consume food (organic molecules) to make ATP to walk, breathe, etc. E. A large…

ENERGY 1. If the object is released after you have raised the object and you failed to take its height but was able to take the distance it has traveled after half of a  second, Can you still determine the energy which this object posses at this point? What form of energies could be present in this state of motion and position of the object?   2. A student lifts her 10.0 kg school bag from the floor, bringing it to a height of 1.4 m.  How much work was done? how much energy was gained?

1. Free Energy is REAL. TRUE or FALSE. 2. The law of energy states that the total energy of a closed system is? a. stay the same b. increased c. decreased d. cannot be determined. 3. Energy is losses in a vacuum due to air resistance. TRUE or FALSE.

Add the forces acting on the weight to find its mass, mW. Express your answer in terms of some or all of the variables F,mB and g.

The question is whether these relationships are linear or non-linear, can you please inform me on how I'd be able to tell?

An 72-kilogram cliff diver is standing on a cliff that is 25 m high what is his potential energy

2. Calculate overpressure for artery which has a puffed-up region (aneurysm) applying Bernoulli's equation and law of continuity. Suppose, diameter of artery increases from value d, = 2.5 cm to d, = 5 cm. Average flow velocity in norm is vį = 0.3 cm/sec.

Matter, atom, physics, particle, natural science, energy, conservation of energy, and motion.  What are the similarities and differences between the everyday and technical meanings and uses of these terms?

6. Find kinetic energy per cubic meter of flowing blood (V = 1 m³) in aorta for individual at rest. Suppose flow rate is about Q = 5 liter/min, radius of aorta R = 1 cm. The density of blood is p =1.05-10° kg/m³.

1. An object of mass 10kg falls from a height 50m to the ground. a.Calculate the potential energy after falling through 30m.  b. The velocity of the object after falling through 30m  c. The velocity of the object just before it hits the ground.

Given that P = 10-7 nm , Q= 10-1 m, R= 10-3 km, and S = 103cm, which of the following ______arrangements is correct?A. P < Q < R < SB. P > R > S > QC. P > S > Q > RD. P < S = Q < R

How fast must a 2.5-g ping-pong ball move in order to have the same kinetic energy as a 145 g baseball moving at 36.0 m/s? m/s Physical Constants Additional Materials O Reading

Answer 1 & 2 only.

A 0.002 kg bullet leaves the barrel of a gun at a speed of 300 m/s. a) Find the kinetic energy of the bullet b) Find the average force exerted by the expanding gases on the bullet as the bullet moves the length of the 0.5 m long barrel.

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3. A 1.5 g bullet takes 2.0 x 103 s to exit the barrel of a gun which is 1.0 m long. How much energy does the bullet have the instant it exits the gun? 1.0 m gun barrel

1000 gal/min of water is cascading down a height of 100 feet from a reservoir. If half of the energy generated is converted to electrical energy, how many 100-watts bulb can be lighted in 30 seconds? A. 84B. 86C. 94 D. 90 Ans: C. 94

2. A ball with a mass of 5.0 g is moving at a speed of 2.0 m/s. Would doubling the mass or doubling the speed have a greater effect on the kinetic energy of the ball? Explain.

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E2:: need help. This is all the information I was given. If I needed I would look it up online

Q6) Let A=2i+3j+kand B=i—3j—2k. What is AxB ? A) -3i+3j— 6k B) -3i+5j— 9%k C)-4i+3j—k D) -9i —3j -3k

A student of mass 40 kg dives from the 25 meter platform into the pool below. A. Determine the Ug stored in the person-Earth system when the student is at the top of the platform. B. Calculate how much K does the diver possess at impact. Calculate the diver’s velocity at impact. C. Repeat steps a and b for a 80 kg diver. Explain your results (using energy in your argument). D. If she jumped from a platform that was twice as high, how many times greater would be her velocity at impact? Explain your results (using energy). E. How much higher would the platform have to be in order for her velocity to be twice as great?

Question 1 Identify the type of energy in the following description: A rubber band has been stretched to twice its normal length. Your answer: O chemical O elastic O nuclear O thermal

Solve this problem using a. Conjugate beam method b. Moment-Area method  c. Virtual Work method . provide readable complete solution Determine the deflection at point C of the beam shown. E = 200 GPa. I = 250(106) mm4

2. Write an expression for the kinetic energy of an object in a circular orbit. Write this in terms of the object's GPE.

23. A ball is dropped from a window, and bounces three times. The first bounce is 1 meter high. The second bounce is meter high. The third bounce is 7 centimeters high. The ball then rolls and comes to a stop. What has happened to the energy of the ball when it has come to a stop?A. The potential energy in the ball decreased.B. The kinetic energy of the ball increased.C. The potential energy is transformed to kinetic energy.D. As the energy of the ball is transferred, the potential energy increases.

1. A 50.0 kg person accelerated from rest to 9.40 m/s. Determine the work that must be done to accelerate this person. 2. Two objects moving in opposite directions collide and bounce off of each other. Identify the type of collision that has taken place and the equations that you could utilize to analyze the collision. 3. A car slams on its brakes, loudly screeching to a halt on a level surface. Describe the flow of energy in the system and explain whether we can use the conservation of mechanical energy to analyze this situation. 4. A baseball player strikes a 0.145 kg ball which reaches a height of 115 m, determine the velocity it left the bat at if contact occurred at 1.5 m off the ground.

7. The law of energy states that the total energy of a closed system is? Select one: a. stay the same b. increased c. decreased d. cannot  be determined