What is the bens kinetic energy

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Reference no: EM134472

Question1

An observer moving at a speed of 0.995c relative to a rod measures its length to be 2.00 m and sees its length to be oriented at 30.0° with respect to direction of motion.

(a) What is proper length of the rod?

(b) What is orientation angle in the rest frame?

Question2

As skiing in Jackson, Wyoming, your friend Ben (of mass 82 kg) started his descent down the bunny run, 17 m above the base of the run.

If he started at rest and changed all of his gravitational potential energy into kinetic energy, what is the Ben's kinetic energy at the bottom of bunny run?

Question3

A rectangular block of copper has sides of length 12 cm, 16 cm, and 34 cm. If block is connected to a 7.0 V source across two of its opposite faces of the rectangular block, what are currents that the block can carry?

Reference no: EM134472

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