Physics

Physics, 09.07.2019 17:50, dmoore6859

Can an object have mechanical energy without having momentum?

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Physics, 08.10.2019 01:30, Nbeans4962

What is true about mechanical energy? a. an object with mechanical energy cannot do work. c. mechanical energy is the energy that an object has due to its position b. an object with mechanical energy can exert an applied force on another object. d. all of the above.

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Physics, 11.10.2019 22:00, jacxirylopez

Abaseball is thrown vertically upward and feels no air resistance. as it is rising: a) its kinetic energy is conserved, but its momentum is not conserved. b) both its momentum and its kinetic energy are conserved. c) its momentum is not conserved, but its mechanical energy is conserved. d) both its momentum and its mechanical energy are conserved. e) its gravitational potential energy is not conserved, buts its momentum is conserved.

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Physics, 30.10.2019 01:31, Teenabrewer28

You drop an egg from rest with no air resistance. which of the following statements is correct? group of answer choices as it falls, its mechanical energy is not conserved, but its momentum is conserved. as it falls, its kinetic energy is conserved, but its momentum is not conserved. as it falls, neither its mechanical energy nor its momentum is conserved. as it falls, both its mechanical energy and its momentum are conserved. as it falls, its mechanical energy is conserved, but its momentum is not conserved.

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Physics, 30.10.2019 07:31, EndiaGracee

1. a hockey puck sliding on a frictionless surface strikes a box at rest. after the collision, the two objects stick together and move at some final speed. which of the following describes the change in momentum and energy of the puck during the collision? a. the puck loses some, but not all, of its original momentum and mechanical energy.b. the puck conserves its original momentum and mechanical energy.c. one cannot determine if the momentum or energy of the puck is conserved without knowing the final velocities and masses of the two objects.d. the puck conserves its original momentum, but loses some, but not all, of its mechanical energy.e. the puck loses some momentum in the collision but conserves its mechanical energy.f. the puck conserves its original momentum but loses all of its mechanical . which of the following describes the change in momentum and energy of the combined puck and box during the collision? a. the system conserves its original momentum but loses all of its mechanical energy.b. one cannot determine if the momentum or energy of the system is conserved without knowing the final velocities and masses of the two objects.c. the system loses some, but not all, of its momentum and mechanical energy.d. the system conserves its original momentum and mechanical energy.e. the system conserves its original momentum, but loses some, but not all, of its mechanical energy.f. the system loses some momentum in the collision but conserves its mechanical energy.

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