A pendulum is made of a small sphere of mass 0.250 kgkg attached to a lightweight string 1.20 mm in length. As the pendulum swings back and forth, the maximum angle that the string makes with the vertical is 34.0∘∘. Friction can be ignored. At the low point of the sphere's trajectory, what is the kinetic energy of the sphere?

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. when your friend hits the water, is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final