Physics, 28.06.2019 09:50 asilverman
The speed of a tennis ball that is served is 73.14 m/s. during a serve, the ball typically starts from rest and is in contact with the tennis racquet for 30 milliseconds. assuming constant acceleration, what is the average force exerted on the tennis ball during the serve, expressed in terms of the ball’s weight w? 450w 150w 250w 350w
Answers: 3
Physics, 21.06.2019 21:00, josebienka
Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball
Answers: 1
Physics, 22.06.2019 03:30, 1074885
The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared
Answers: 1
Physics, 22.06.2019 14:30, chelseayazzie16
What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?
Answers: 1
The speed of a tennis ball that is served is 73.14 m/s. during a serve, the ball typically starts fr...
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