A man pushes a couch across the room is the answer!
Muscular strength is a measure of how much force you can exert in one repetition. Muscular endurance refers to the ability to perform a specific muscular action for a prolonged period of time.
<span> Radio waves, microwaves, infra red, visible light, ultra violet, x-rays, gamma rays. </span>
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The constant in Newton's law of gravitation relating gravity to the masses and separation of particles, equal to 6.67 × 10-11N m2 kg-2.
