In which circuit does charge reverse direction many times per second? A. A DC circuit
B. A combined circuit
C. A parallel circuit D. An AC circuit

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass