Draw the figure of magnet and magnetic substances showing their molecular magnets? plz anyone help me to get the answer for this question I will always be thankful for uh who waana help me

What are the necessary conditions for fusion?

If a star is moving toward earth, it is

1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)