Work is done against frictional forces acting on the wheels of the suitcase. Describe the effect this has on the temperature of wheels. Explain this in terms of energy transfer.

Abanked road comer of radius 146 m is to be constructed. if the comer is designed for vehicles moving with a speed of 20.0 m/s, what should the banking angle be, in units of degrees?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)