There is a balance of heat coming into and going out of earth. This is known as the?

A 50 kg child runs off a dock at 2.0 ms (horizontally) and lands in a waiting rowboat of mass 150 kg. At what speed does the rowboat move away from the dock?

A bus travels 4 km due north and then 3 km due west going from bus station A to bus station B. The magnitude of the bus' displacement from station A to station B is __km

A stone is dropped from a height of 7.70 m how fast is it going when it is 5.25 m above the ground

James decides to walk home from school today. He lives 3 miles from school and can walk home in 45 minutes. At what rate is James traveling? A) 1 mile/10 minutes B) 1 mile/15 minutes C) 1 mile/20 minutes D) 1 mile/30 minutes

How to solve tension force problems with friction with three masses?

Newtons first law states that no force is required to maintain motion in a straight line at a constant speed. If newtons first law is true, why must we continue to pedal a bicycle on a level surface to keep moving?

A box is lowered using a rope. If the acceleration of the box, is 3.3 m/s2 (downward) and its mass is 29.1 kg, what is the magnitude of the tension in the rope?

Why si system been developed? Give reason.

un objeto se lanza verticalmente hacia arriba con una velocidad de 40 km/h calcular el tiempo que tarda cuando alcanza su altura maxima

A 3.00 watt electric motor is plugged into an electrical outlet It takes the motor 30 00 seconds to lift a mass of 254.9 g a distance of 10.00 cm. In that time, the motor has used 90.