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A mechanical device requires 420

A mechanical device requires 420 J of work to do 230 J of work in lifting a crate. What is the efficiency of the device?I keep
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2. asked by Anonymous
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eBookA firm has an opportunity to invest in a new device that will replace two of the firm’s older machines. The new device
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Which option correctly defines a generator?A.a device that converts mechanical energy into electrical energy B.a device that
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2. asked by Help
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How do i make a mechanical device using mechanical advantage to lift an 8lb trash bag with a 1lb can of soup.Use a lever with
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2. asked by dustin hill
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A firm has an opportunity to invest in a new device that will replace two of thefirm’s older machines. The new device costs
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2. asked by Rachel
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A firm has an opportunity to invest in a new device that will replace two of the firm's older machines. The new device costs
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2. asked by Anonymous
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Video conferencing requires at least a microphone and a speaker on your device. What other device does it need?A. LED ring light
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2. asked by young_240sx
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Video conferencing requires at least a microphone and a speaker on your device. What other device does it need?(1 point)Response
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2. asked by Donald Craven
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What is a metronome?(1 point) Responses a composition’s rate of speed a composition’s rate of speed a mechanical or
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What is the definition of rhythm?(1 point) Responses a composition's rate of speed a composition's rate of speed a mechanical or
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2. asked by bri_bri
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