Physics help please ( vectors ) ?

When the craft was stationary, the tension in the cable was 7500 N. When the craft was lowered or raised at a steady rat...

A truck weighing 3.0 x 10^4 newtons was driven up a hill that is 1.6 x 10^3 meters long to a level area that is 8.0 x 10...

A hydrogen atom is in the n = 2 state. In the Bohr model, how many electron wavelengths fit around this orbit?

A baseball of mass m1 = 0.35 kg is thrown at another ball hanging from the ceiling by a length of string L = 1.05 m. The...

ok the problem goes like this:Mass mA rests on a smooth horizontal surface, mB hangs vertically.1 . If mA=13.0 kg and mB...

Living cells “pump” singly ionized sodium ions, Na+, from the inside of the cell to the outside to maintain a membrane p...

An accident victim with a broken leg is being placed in traction. The patient wears a special boot with a pulley attache...

A 250g ball collides with a wall. The figure shows the ball’s velocity and the force exerted on the ball by the wall. ht...

On a modified atwood machine (such as this one: http://spiff.rit.edu/classes/phys311/workshops/w5b… suppose the hanging...

The escape velocity from planet A is double that for planet B. The two planets have the same mass.What is the ratio of t...