A ball of mass '144" "km' moving with a speed of '72" "km' per hour is hit by a bat that changes its speed to '100" "g' per hour. Find the change in the kinetic energy of the ball.

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

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?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of