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5.How do simple machines make work easier?(1 point)
a. They decrease the distance needed between a person and an object, allowing the person to apply more force and do more work.
b. They magnify the force being applied, thereby increasing the work they can do with no extra energy exerted by the person using the machine.
c. They reduce the amount of force needed to move an object to do the same amount of work.
d. They increase the distance over which a force is needed, doing more work with less force.
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What is the coefficient of kinetic friction μk between the block and the tabletop?
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Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?
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There are multiple tuning forks present in the room, and annie strikes one with a natural frequency of 400 hz. which of these other tuning forks will begin to vibrate through resonance and make the sound louder? a 200 hz tuning fork a 400 hz tuning fork a 800 hz tuning fork a 1600 hz tuning fork
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Anumber of conditions are required for a population to be in hardy-weinberg equilibrium. which of the following are correct descriptions of the conditions that must be met? check all that apply. a. no mutations b. random mating c. small population d. migration or gene flow e. occurrence of mutations f. no natural selection
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5.How do simple machines make work easier?(1 point)
a. They decrease the distance needed between a...
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