To pull apart two pieces of wood, you can apply a force of 50 N to a lever. The lever applies a force of 640 N. What is the mechanical advantage of the lever?
A.13
B.17
C.0.08
D.32,000

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

True or false graphs must include scales that increase by the same amount

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.