Which statement best describes the motion of particles in a solid? Particles in a solid never move.
Particles in a solid vibrate around a fixed position.
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Particles in a solid are constantly swapping places with each other.
The motion of one particle in a solid is completely unaffected by the other particles.

A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s