You drive a car at a speed of 40 mph for 600 miles. How long did it take you to travel that distance? A. 18 hours
B. 12 hours
C. 24 hours
D. 15 hours

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

In the first law of thermodynamics, triangle e=q-w, what does q stand for