A 650.0 kg boulder falls off a 56.0 m tall cliff on a planet that has a surface gravitational field of magnitude N
23.6 - Assume that the planet has no atmosphere.
kg
What is the speed of the boulder just before it strikes the ground?

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear