A free body diagram of a brick on an inclined plane is shown below. What is the mechanical advantage of the inclined plane?
Free body diagram
A. 0.625
B. 1.25
C. 1.67
D. 2.5

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?