After you drop the box and it has fallen half way, its potential energy is __________ and its kinetic energy is __________

Fill in the blank(s) with correct word


50 J, 50 J

Physics & Space Science

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All neutrinos are left handed

a. True b. False Indicate whether the statement is true or false

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The electronvolt is the unit of energy very well suited to describing energies of nucleons and electrons at the atomic level

What will be an ideal response?

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The ratio of the electric field to the magnetic field in the electromagnetic wave is the speed of the light

Indicate whether the statement is true or false

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The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. Find the average power per square meter carried by the EM wave.

A. 720 W B. 172 W C. 500 W D. 2 × 107 W E. 86 W

Physics & Space Science