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  In the Doppler effect it is important to distinguish betwe…

  In the Doppler effect it is important to distinguish between

Published December 3, 2024
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 A sound wave is a/an

 A sound wave is a/an

Published December 3, 2024
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 A rock weighs 50 N on Earth and another rock weighs 50 N on…

 A rock weighs 50 N on Earth and another rock weighs 50 N on the Moon. Which rock has the greater mass?

Published December 3, 2024
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 The word ____________________ describes a sound that is too…

 The word ____________________ describes a sound that is too high to be heard by the normal human ear.

Published December 3, 2024
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When a drawn bow of potential energy 50 J is fired, the arro…

When a drawn bow of potential energy 50 J is fired, the arrow will ideally have a kinetic energy

Published December 3, 2024
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 About 50 J of energy is required to push a crate 5 m across…

 About 50 J of energy is required to push a crate 5 m across a floor. If the push is in the same     direction as the motion of the crate, the force on the crate is about

Published December 3, 2024
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In air and in water the same sound travels with different

In air and in water the same sound travels with different

Published December 3, 2024
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An object has gravitational potential energy due to its

An object has gravitational potential energy due to its

Published December 3, 2024
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Two identical arrows, one with three times the speed of the…

Two identical arrows, one with three times the speed of the other, are fired into a bale of hay. Compared with penetration of the slow arrow, the faster arrow penetrates

Published December 3, 2024
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An object moving at constant speed does so because

An object moving at constant speed does so because

Published December 3, 2024
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