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Physics, 22.06.2019 07:30
Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?
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Physics, 23.06.2019 14:00
What difference are found in the propagation of sound in the media solid,liquid and gas
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Physics, 23.06.2019 16:00
Two point charges lie on the x axis. a charge of + 2.30 pc is at the origin, and a charge of โ 4.50 pc is at x=โ11.0cm. what third charge should be placed at x=+26cm so that the total electric field at x=+13.0cm is zero? express your answer to three significant figures and include appropriate units.
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Physics, 23.06.2019 17:00
Asoccer ball of mass 0.43 kg is rolling with velocity < 0, 0, 1.8> m/s, when you kick it. your kick delivers an impulse of magnitude 2.7 nรขยทs in the direction. the net force on the rolling ball, due to the air and the grass, is 0.22 n in the direction opposite to the direction of the ball's momentum. using a time step of 0.5 s, find the position of the ball at a time 1.5 s after you kick it, assuming that the ball is at the origin at the moment it is kicked. use the approximation . (express your answer in vector form.) < entry field with incorrect answer 12.97 , entry field with correct answer 00 , entry field with incorrect answer 2.7 > m
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Bernard wacks a 0.058-kg tennis ball at rest. He exerts a force of 12 newtons of a 0.1 second time i...
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