Moving 4.0 coulombs of charge through a circuit
requires 48 joules of electric energy. what is the
potential difference across this circuit?
(1) 190 v (3) 12 v
(2) 48 v (4) 4.0 v

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

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.

Assume this car is driven off a cliff . how many arrows of force need to be drawn in the free body diagram? assume no air resistance -five -one -three -four