Physics, 12.10.2019 10:30 beckyroof5158
Aphotographer in a helicopter ascending vertically at a constant rate of 11.5 m/s accidentally drops a camera out the window when the helicopter is 70.0 m above the ground.
a) how long will the camera take to reach the ground?
b) what will its speed be when it hits?
Answers: 2
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A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be −1,200 m/s.
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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 3.00 ms . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
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