A system releases 680 kj of heat and does 150 kj of work on the surroundings. what is the change in internal energy of the system?

A 2.4-kg cart is rolling along a frictionless, horizontal track towards a 1.7-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases.

Would a computer be intensive because it doesnt change mass but it does produce heat

A world-class cyclist can average about 15.5 m/s on a bike during a sprint. At this rate, how much distance can he cover in an hour?

You might have experienced static electricity and even felt a mild shock?

Which planet takes 29 years to orbit the sun

What equation expresses the the work-energy theorem?

What is the potential energy for and object with mass of 15 Kg and 20 m above the ground?

What is the z coordinate for the above vector? A vector is r⇀ = 356 m @ θ = 115∘, φ=-30.0∘. 178 m -178 m 120 m 308 m

In a classic carnival ride, patrons stand against the wall in a cylindrically shaped room. once the room gets spinning fast enough, the floor drops from the bottom of the room!

What does Newton's law of universal gravitation say about the distance between objects?