2. A stationary 0.325 kg steel ball begins rolling down a frictionless track from a height has shown in the diagram. It completes a loop-the-loop of radius 1.20 m with a speed of 6.00 m/s at the top of the loop. What is the gravitational
potential energy of the ball
at the top of the loop?

A. 0.98 J
B. 3.82 J
C. 5.85 J
D. 0 7.65 J

Player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. what is the horizontal velocity component of the ball to the nearest tenth of a m/s?

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?

Use vsepr theory to predict the molecular geometry of the molecule hcn.