If a curve with a radius of 93 m is properly banked for a car traveling 74 km/h , what must be the coefficient of static friction for a car not to skid when traveling at 91 km/h ? Express your answer using two significant figures.

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot