Physics
Which of these is exhibiting kinetic energy?

A space station orbiting Earth
An archer with a flexed bow
All of these
A person sitting on a couch while watching TV

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Physics
A standing wave occurs when

The amplitude of a wave exceeds its wavelength
The speed of the wave is zero or near zero
Two waves overlap
A wave reflects upon itself

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Physics
The mass defect is the result of what action occurring?

Mass being converted to energy when protons and neutrons break apart in a nucleus
Protons and electrons being attracted to each other
Mass being converted to energy when protons and neutrons bind together in a nucleus
Energy being converted into moles of atoms when neutrons break apart protons

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