Heat transfer between two substances that are in contact is called

a train traveling at 30m/s comes to a complete stop in 20 sec. how far did the train go during the deceleration

Isra is analyzing the properties of several samples of elements to find out which sample is a metalloid.

The force that one massive object exerts to attract another object is called

A compressed spring in a toy is used to launch a 5.00-gram ball. If the ball leaves the toy with an initial horizontal speed of 5.00 meters per second, the minimum amount of potential energy stored in the compressed spring was (1) 0.0125 J (3) 0.

The energy stored in gasoline is A chemical energy B electromagnetic energy C mechanical energy D nuclear energy

A CFL bulb has an efficiency of 8.9% and a power of 22 W. How much light energy does the lightbulb produce in 1 second

Which of the following is true of high clouds?

A ferris wheel takes 5 minutes to complete one full rotation, what is the angular velocity of the ferris wheel

A heat engine has a thermal efficiency of 45%. how much power does the engine produce when heat is transferred into it at a rate of 109 kj/hr?

Dos pelotas de tenis se lanzan verticalmente, hacia arriba y desde el mismo punto, con 2 s de diferencia. La velocidad inicial de la primera es de 20 m/s, y la de la segunda, de 30 m/s.