If the net work done by external forces on a particle is zero, which of the following statements about the particle must be true? (a) Its velocity is zero. (b) Its velocity is decreased. (c) Its velocity is unchanged. (d) Its speed is unchanged. (e) More information is needed.

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Q: What distance can a crane lift a 55.0 N box, if it expends work of 2.00 x 104 Joules?

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Q: F = 5000 N 0= 36.9° fk = 3 500 N d =20m Weight = 14 700 N

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Q: Please show me how to work this. Don't round any figures please.

A: The work done can be calculated using following steps:Given:

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Q: If it takes 4.00 J of work to stretch a Hooke's-law spring 5.0 cm from its unstressed length,…

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Q: The initial velocity of a 2-kg particle is (1 i- 3 j) m/s. After some time, the velocity becomes (4…

A: Dear student The work can be calculated by finding change in kinetic energy of the particle. W= ∆K

Q: Does the net work done on a particle depend on the choice of reference frame? yes no

A: