A dam produces 400 watts of electrical energy. What is the efficiency of the dam?

Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. The objects collide, stick together, and move with speed 0.100 in the direction of the velocity of the first mass before the collision.

What is the acceleration of a car moving at a steady speed of 50 mph?

If an object has a mass of 26 g on earth would its mass be less than 26 g on the moon

Which electron transition would result in the greatest amount of energy to be absorbed? a) n = 4 to n = 1 b) n = 1 to n = 4 c) n = 2 to n = 1 d) n = 1 to n = 3 e) None of the choices are correct

A student is sitting on a frictionless rotating stool with her armsoutstretched holding equal heavy weights in each hand. If shesuddenly lets go of the weights will her angular speed: a. get faster b. get slower c. stay the same d. stop

If an object experiences a leftward net force, then it will accelerate in which direction? rightward leftward there will be no acceleration

To calculate the ideal mechanical advantage of a lever divide the input arm by the

An ionic compound is a compound that consists of molecules made of atoms that are covalently bonded. True or False?

What is the term for the flow of electric charge

Relation between wavelength wave velocity and time period