Physics, 22.04.2020 23:32, anahitrejo1
An athlete throws a ball straight upward with an initial speed of 12 meters per second. The ball
reaches a maximum height and then falls back down toward the athlete. What are the
magnitudes of the velocity and acceleration of the ball at its maximum height?
O A. velocity = 0 m/s; acceleration = 0 m/s
B. velocity = 0 m/s, acceleration = 9.8 m/s
O C. velocity = 12 m/s; acceleration = 0 m/s
OD. velocity = 12 m/s; acceleration = 9.8 m/s
Answers: 2
Physics, 22.06.2019 12:00, marquez8
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
Physics, 22.06.2019 14:40, casie65
During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?
Answers: 1
An athlete throws a ball straight upward with an initial speed of 12 meters per second. The ball
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