Lab Report 6

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.

26-The amount of work required to stop a moving object is equal to: A. the velocity of the object B. the kinetic energy of the object C. the mass of the object times its acceleration D. the mass of the object times its velocity E. the square of the velocity of the object 27- The mass of a hydrogen atom, in kilograms, is approximately: А. 10-27 В. 10-31 С. 10-24 D. 10-13 Е. 10-8 28- The isotopes of an element: A. cannot be separated at all B. occur well separated in nature C. have similar chemical behavior D. cannot be separated by physical methods E. have equal masses 29-Which of the following groups does NOT contain a scalar quantity? A. velocity, force, power B. displacement, acceleration, force C. acceleration, speed, work D. energy, work, distance E. pressure, weight, time 30- According to the theory of relativity: A. moving clocks run fast B. energy is not conserved in high speed collisions C. the speed of light must be measured relative to the ether D. momentum is not conserved…

A 1500-Kg sports car traveling at the speed of 8.00 m/s collides into the rear end of a 2500-Kg SUV stopped at a red light. After the collision, the two cars lock together and slide forward as one object. a) Compute the final velocity of the cars after the collision. b) Compute the total kinetic energy before and after the collision. c) How much energy was dissipated in the collision? What happens to it?

TION 24 Steel ball with radius of 0.09 m lays on a bottom of the lake 5 m deep. What work is needed to lift the ball to the surface of 3. the lake? Density of steel is 7860kg/m. The volume of a sphere is Use g = 9.8 m/s< Calculate answer to two decimals. %3D

A rocket with mass 4.00x103 kg is in a circular orbit of radius 7.30x10 m around the earth. The rocket's engines fire for a period of time to increase that radius to 8.80x106 m, with the. orbit again circular. What is the change in the rocket's kinetic energy? Does the kinetic energy increase or decrease? Express your answer with the appropriate units. Enter positive value if the kinetic energy increases and negative value if the kinetic energy decreases. AK = Value Submit Request Answer Part B What is the change in the rocket's gravitational potential energy? Does the potential energy increase or decrease? Express your answer with the appropriate units. Enter positive value if the gravitational potential energy Increases and negative value if the gravitational potential energy decreases. AU= Value 6 Units Submit Request Answer Units ?

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

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?

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1 Deep Impact It is widely accepted that a meteor impact 65 million years ago caused a mass extinction of life on our planet, relegating the dinosaurs to the fossil record. The meteor was about 5 miles in diameter and moving at about 20 miles per second relative to the earth. Assume the density of the meteor was similar to that of the earth, about 5.5 g/cm³. (a) The meteor was vaporized during the impact and virtually all of its kinetic energy was converted into heat. How much energy was released as heat? Report your result in joules (J). (b) This was an inelastic collision: (The meteor ended up as a layer of dust about half an inch thick covering the entire planet.) How much did the velocity of the earth change as a result of the impact?

Don't use Artificial intelligence tools. Only Handwritten solutions are allowed. Mechanical engineering question

1) The image below shows the final energy distributions for an experiment done on the Gizmo. What can be inferred from the graphs? (PICTURE OF GRAPHS IS ATTACHED)   A. The two ramps were at the same angle.   B. The two objects were the same shape.   C. Both A and B are true.   D. Neither A nor B is true. 2) One winter day Lisa and Mary have a contest to see who can find an object that will roll or slide down an icy hill in their neighborhood the fastest. Lisa picks a sled and Mary finds an old tire. They release their objects and the sled wins the race. If Mary wishes to propose a rematch, what conditions would most favor the tire?   A. A race on a less steep, grassy hill   B. A race on a steeper, grassy hill   C. A race on a less steep, icy hill   D. A race on a steeper, icy hill 3) Which would roll down a slanted desktop more quickly, a ballpoint pen full of ink or a ballpoint pen after it has run out of ink? (Note: Assume that the total mass of an object does not…

08_AP1_Conservation_of_Md sign Layout References Mailings Review View Help A A Aa - Ao|三 AaBbCcDd x, x A A- 三。三| Answer Paragraph Font way 1S Kineric energy not conservea n neiasLIC COLISIONS7 wnere 1s Tne energy 1OST? 生 because some kinetic energy had been transferred to something else. Synthesis Questions 1. Two locomotives, each weighing 100,000 kg and having a speed of 100 km/hr, race toward each other and have a completely inelastic collision. What is the final momentum of the system? Justify your answer.

Answer clearly

Match associated items          -           A.           B.           C.           D.           E.           F.       Power          -           A.           B.           C.           D.           E.           F.       Physics unit of energy          -           A.           B.           C.           D.           E.           F.       Physics unit of power          -           A.           B.           C.           D.           E.           F.       Potential energy near Earth's surface          -           A.           B.           C.           D.           E.           F.       4186 joules          -           A.           B.           C.           D.           E.           F.       Total of kinetic and potential energy A. kilocalorie or "food"calorie B. mgh C. watt D. joule E. Energy/time F. Conserved or constant quantity

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During the free fall of the object, the decrease in potential energy, at any point in its path, appears as an equal amount of increase in _________________. A) kinetic energy B) work done C) heat energy D) gravitational force

the height of the Iguazu Falls is 82 m. A log of wood with mass 1350 kg moves at 7ms -1 in the water and tumbles over the falls. Answer these b. Calculate the kinetic energy of the log before it falls over the edge. c. Calculate the GPE of the log before it falls over the edge. d. Hence, calculate the total energy before the log falls over the edge.

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

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…

Explain if it is possible for a system to have negative potential energy

A 2000 kg car traveling at a speed of 16 m/s skids to a halt on wet concrete where k = 0.30. For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. Part A How long are the skid marks? Express your answer in meters. L = Submit 15. ΑΣΦ Review I Constants I Periodic Table Provide Feedback Request Answer ? m Next >

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Q2) A model turbine is provided with a runner 2 m in diameter. It is found to develop 64 HP under a head of 100 m when running at a speed- of 4,000 rpm. Calculate the specific speed. It is required to build a similar turbine to develop 200 HP under a head of 120 m. Calculate the required diameter. Prove any formula used.