What is free fall?

a. when an object falls with decreasing velocity
b. when an object falls with zero acceleration
c. when an object falls with constant velocity
d. when an object falls with no air resistance

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

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?

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?