Physics, 17.04.2020 18:33 tasjanayroberts
An object of mass m is held at a vertical height h from ground level. It is then released and falls under the influence of gravity. Which of the following statements is true in this situation?
a. The total energy of the object isdecreasing.
b. The kinetic energy ofthe object is decreasing.
c. The total energy of theobject is increasing.
d. The potential energy ofthe object is decreasing.
e. The kinetic energy ofthe object is increasing.
Answers: 2
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World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s
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Physics, 22.06.2019 16:40
An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?
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Definition: this is the weighted average of all of the isotopes of an element.
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An object of mass m is held at a vertical height h from ground level. It is then released and falls...
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