How does the position of the Sun in the sky affect the intensity of sunlight striking Earth's surface?

Consider an electric motor with a shaft power output of 22.5 kW and an efficiency of 85%. Determine the rate at which the motor dissipates heat to the room it is in when the motor operates at full load. In winter, this room is normally heated by a 2.

The amount of pressure in a gas is measured in pascals. true or false

How do the individual powers of each of the resistors compared to a total power output of the voltage supply?

A rubber ball rolls across a level surface. The ball will eventually stop rolling due to A. electricity B. conductivity C. friction D. magnesium

The table below lists the characteristics of various stars. Star Temperature (K) Distance from Earth (ly) Apparent Magnitude A 10,000 23 - 1.44 B 7,000 132 1.23 C 31,000 58 - 0.31 D 15,000 989 9.

1. For a reaction to occur, energy must be to break chemical bonds. O A released OB converted OC absorbed

51 Mm is how many km?

What type of change occurs when water changes from solid to a liquid

Definition of artficial and natural radioactivity

In order for an object to conserve it's total mechanical energy it is absolutely necessary that?