Two balls roll off the table at the same time and free fall to the ground. Ball A is
moving at 1 m/s when it rolls off the table. Ball B is moving at 2 m/s when it rolls off
the table. Which ball hits the ground first?
a. Ball A.
b. Ball B.
c. The two balls land at the same time.
Answers: 1
Physics, 21.06.2019 13:00
Explain the doppler effect in terms of frequency, wavelength, and speed.
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An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10
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Physics, 22.06.2019 06:00
An ideal gas is held in a container at constant volume. initially, its temperature is 5 degrees c and its pressure is 1.2 atm. what is its pressure when its temperature is 43 degrees c? answer in units of atm
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Physics, 22.06.2019 18:00
The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
Answers: 1
Two balls roll off the table at the same time and free fall to the ground. Ball A is
moving at 1 m...
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