Find out the kinetic energy of ball
A rubber ball of 0.44 kg has a speed of 1.50 m/s at point A and kinetic energy of 7.3J at point B.
(i) Find the kinetic energy of ball at A.
(ii) Find the speed of ball at B.
(iii) Find out the net work done on the ball from A to B.
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A balloon is filled by helium at a pressure of 2.4x 10^5 Pa. The balloon is at a temperature of 18C and consists of a radius of .25m. Determine the number of helium atoms which are contained in the balloon?
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A rubber ball of 0.44 kg has a speed of 1.50 m/s at point A and kinetic energy of 7.3J at point B. (i) Find the kinetic energy of ball at A.
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