Physics, 25.06.2019 12:20 barnettboy76

Puck a, of inertia m, is attached to one end of a string of length ℓ , and the other end of the string is attached to a pivot so that the puck is free to revolve on a smooth horizontal surface. puck b, of inertia 4m, is attached to one end of a string of length ℓ/4, and the other end of the string is attached to a second pivot so that b is also free to revolve. in each case, the puck is held as far as possible from the pivot so that the string is taut and then given an initial velocity vi perpendicular to the string. (a) how does the magnitude of the angular momentum of puck a about its pivot compare with that of puck b about its pivot? (b) how does the rotational kinetic energy of a compare with that of b?

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 18:00

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.

Answers: 2

Answer

Physics, 23.06.2019 00:30

Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:

Answers: 1

Answer

Physics, 23.06.2019 02:40

Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0×1026 kg , radius = 2.5×1010 m , rotation period 16.1 h , orbital period 6.01×104 d and is 4.6×109 km from the sun.]

Answers: 2

Answer

Physics, 23.06.2019 05:00

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano.the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force

Answers: 1

Answer

You know the right answer?

Puck a, of inertia m, is attached to one end of a string of length ℓ , and the other end of the stri...

Questions