What is the minimum coeffecient of static friction μmin required between the ladder and the ground so that the ladder does not slip? express μmin in terms of m1

Alarge truck is moving 22.0 m/s. if it’s momentum is 125,000 kg • m/s, what is the trucks mass

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface