Physics, 18.02.2020 22:58, RedDemon59
Near the surface of Earth, an electric field points radially downward and has a magnitude of approximately 100 N/C. 1) What charge (magnitude and sign) would have to be placed on a penny that has a mass of 2.50 g to cause it to rise into the air with an upward acceleration of 0.190 m/s2? (Express your answer to three significant figures.)
Answers: 2
Physics, 23.06.2019 02:30, elishane864
Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.
Answers: 2
Near the surface of Earth, an electric field points radially downward and has a magnitude of approxi...
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