Apoint source of light is at 45.0 cm below the surface of a large swimming pool filled with water. calculate the diameter of the largest circle at the surface through which the light can emerge from the water given nwater = 1.33.

Adelivery truck leaves a warehouse and travels 2.60 km north. the truck makes a left turn and travels 1.25 km west before making another right turn to travel 1.40 km north to arrive at its destination. what is the magnitude and direction of the truck's displacement from the warehouse?

Abird sitting high in a tree is an example of what type of wnergy

The step-down transformer gives a current of 10a at 24v if the primary voltage is 240v calculate the 1_primary current 2_the power input 3_the power output