Physics, 03.02.2020 02:46, johnnybones03
Atennis ball is thrown straight up and caught at the same height. which of the following can be describe the motion of the ball when it reaches the apex?
a. the velocity of the ball is zero
b. the acceleration of the ball is zero
c. the acceleration of the ball is 9.8m/s^2 down
d. the acceleration of the ball is 9.8m/s^2 up
Answers: 2
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An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.
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Atennis ball is thrown straight up and caught at the same height. which of the following can be desc...
Mathematics, 19.03.2020 07:14
Mathematics, 19.03.2020 07:14
Mathematics, 19.03.2020 07:14