How do we know Earth is spinning, not the Sun?

The charge of sphere 2 is twice that of sphere 1. which vector below shows the force of 2 on 1?

How does acceleration values differ mathematically from deceleration values?

A particle that has a mass of 2.5 kg is moving in the positive X-direction with a constant velocity of 1.6m/s. Suddenly a constant vertical force with a magnitude of 8N is applied in the positive Y-direction.

A circular ring of charge of radius b has a total charge q uniformly distributed around it. What is the magnitude of the electric field at the center of the ring?

On a cross-country trip, a couple drives 500 mi in 10 h on the first day, 380 mi in 8.0 h on the second day, and 600 mi in 15 h on the third day. what was the average speed for the whole trip?

The amount or the strength of force is called its

An airplane in flight has a pressure difference between the lower and upper wing surface; this provides an upward force that balances the weight of the plane.

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Why does momentum have a direction?

What is the difference between weight and mass?