A youngster throws a ball horizontally at speed of 10 ms-1 from a bridge 50 m above the river.

Ignore air resistance.

What is the velocity of the ball just before it lands?

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

Give an example in which the electrical energy changes to light energy