Suppose that two pith balls, each with a charge of 1 coulomb, are hanging in the lab room, seperated by a distance of 1 meter, and applying a force on eachother. what will be the magnitude of the electrostatic force between them?

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Anybody wanna ? (picture included? )

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)