Physics, 16.04.2020 03:21 ns047637pea80j
After soccer practice, Coach Miller goes to the roof of the school to retrieve the errant soccer balls. The height of the school is 3.5 m. He kicks a soccer ball which leaves the roof with a horizontal velocity of 15 m/s. Ignoring air resistance, which of the following values is the horizontal velocity of the ball just before it lands on the ground?
Elimination Tool
A 17 m/s
B 15m/s
C 9.8 m/s
D 8.3 m/s
Answers: 1
Physics, 22.06.2019 14:30, sross8799
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
Answers: 2
Physics, 22.06.2019 15:10, deidaraXneji
In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_
Answers: 3
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