Physics, 12.11.2019 06:31, Nicoleebel2984
For a top player, a tennis ball may leave the racket on the serve with a speed of 55 m/s (about 120 mi/h). if the ball has a mass of 0.060 kg and is in contact with the racket for about 4 ms (4 x 10-3 s), estimate the average force on the ball. would this force be large enough to lift a 60-kg person?
Answers: 2
Physics, 21.06.2019 23:30, supernova69
In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door
Answers: 2
Physics, 22.06.2019 06:30, keidyhernandezm
Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults
Answers: 1
Physics, 22.06.2019 11:00, chaycebell6662
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
For a top player, a tennis ball may leave the racket on the serve with a speed of 55 m/s (about 120...
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