Recent content by laddoo12

Homework Statement a man holds a 5.00kg weight in his hand. His arm is represented here by a pair of thin rods attached with a hinge, with a cord for the bicep muscle. The forearm makes a 20 degree angle with the horizontal, and the bicep (which is attached 4.0 cm away from the elbow joint)...

if we weigh a metal object which is immersed in water, we have to correct the buoyant force for water. Air is a fluid. Why don't we correct for the buoyant force of the air when we weigh it in the air? What i think it may be is because we have a set atmospheric pressure being 1.013 Kpa in...

Homework Statement In the diagram below are two blocks. Block A sitting on top of block B has a mass mA = 10.0 kg and is attached to the wall by massless string. Block B, mass mB = 35.0 kg, is pulled by a force F = 75.0 N. The surface under block B is frictionless. The coefficients of friction...