A crane has a counterweight of 6000N at a distance of 4 m from the tower. What weight can be lifted on the loading platform at a distance of 5m from the tower on the other side?

A 878-kg (1940 lb) dragster, starting from rest, attains a speed of 25.9 m/s (57.9 mph) in 0.62 s. (a) Find the average acceleration of the dragster during this time interval?

What action force is used when sitting down

A child at the top of a slide has a gravatational store of 1800j what is the childs maximum kinetic store as he slides down explain your answer

A machine has an efficiency of 20 percent. Find the input work if the output work is 140 Joules

What layer of the atmosphere is the least dense?

What happens when energy in the molecules of an ice cube when it begins to melt

ll of mass m is thrown vertically upward with an initial speed of v0. It experiences a force of air resistance given by F = - kv, where k is a positive constant. The positive direction for all vector quantities is upward.

When combing your hair, you scuff electrons from your hair onto the comb. is your hair then positively or negatively charged? how about the comb?

A 4 kg mass is in free fall. What is the velocity of the mass after 11 seconds

Pascal's principle explains the viscosity of motor oil used in cars. True or False?