An 8.79 kg block slides with initial speed of 1.78 m/s down a ramp inclined at an angle of 26. 4° with the horizontal. The coefficient of the kinetic friction between the block and the ramp is 0.69. Use energy conservation to find the distance the block slides down the ramp before coming to rest.

Can you match these to the correct definition

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?