Physics, 22.05.2020 14:58 whocares1234
We drop a 60 gram tennis ball from the top of the Burj Khalifa (828 m).
How fast will it hit the ground if there's no air resistance?
How fast will it hit the ground if the air resistance takes away 200 Joules of energy?
How high will it bounce back if the energy lost during the bounce is 50 Joules?
Calculate the ratio of the output energy vs the input
energy (the efficiency)
Answers: 1
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Physics, 22.06.2019 14:30
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Physics, 22.06.2019 18:20
Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b
Answers: 2
We drop a 60 gram tennis ball from the top of the Burj Khalifa (828 m).
How fast will it hit th...
How fast will it hit th...
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