anonymous
  • anonymous
Which of the following situations describes an object's kinetic energy being converted into gravitational potential energy? A penny sits motionless atop a shelf. A water particle flows down a mountain stream. A kiwi is dropped from a second-story window. A ball rolls up an inclined ramp.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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♪Chibiterasu
  • ♪Chibiterasu
do you know what kinetic and potential energy are?
anonymous
  • anonymous
yes
♪Chibiterasu
  • ♪Chibiterasu
OK, so which of these seems like it's building up kinetic energy and then stopping, converting it into potential energy?

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♪Chibiterasu
  • ♪Chibiterasu
For example: A weight is raised up from the ground and then stops to be dropped afterwards. Raising it up builds kinetic energy, when it stops it is potential energy that can be converted again into kinetic IF it drops. But while motionless, it's potential energy.
anonymous
  • anonymous
so number 2
♪Chibiterasu
  • ♪Chibiterasu
no, flowing down a stream is just kinetic all the time we're talking about building up energy and then suddenly halting, even if the options dont mention stopping its obvious that it will
anonymous
  • anonymous
so the number 3
♪Chibiterasu
  • ♪Chibiterasu
sorry, lagged there
♪Chibiterasu
  • ♪Chibiterasu
wait no, that's potential to kinetic
dan815
  • dan815
|dw:1447467253743:dw|
dan815
  • dan815
kinetic energy formula?
dan815
  • dan815
what is gravitational potential energy formula
dan815
  • dan815
KE=1/mv^2 PE=mgh as ball rolls up its height above the ground is increasing its velocity is decreasing as gravity is slowing it down so KE decreases and PE increases as KE is a function of velocity and PE is a function of height
anonymous
  • anonymous
Energy that is emitted or propagated as electromagnetic waves is called _______ energy. A. acoustic B. chemical C. nuclear D. radiant
dan815
  • dan815
light is what kind of a wave
dan815
  • dan815
=.= u are going to have to answer me, or say i dont know or something
anonymous
  • anonymous
i dont know
dan815
  • dan815
okay light is an electromagnetic wave
dan815
  • dan815
light occurs due to photons, and photons occur due to electrons relaxing from higher energy states
dan815
  • dan815
what kind of emmision releases a photon?
anonymous
  • anonymous
i dont know
dan815
  • dan815
we call it radiant energy i guess
dan815
  • dan815
even nuclear energy should emit EM waves though
anonymous
  • anonymous
TY

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