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Will we ever have a theory of everything?

Someone is riding their bike across the beach, they are peddling forward with a force of 100 newtons and they are moving at a constant speed of 3 meters per second, what is the strength and direction of the force exerted by the friction from the

Why are there temperature differences on the moon's surface even though there is no atmosphere present?

A 26-cm-long wire with a linear density of 20 g/m passes across the open end of an 86-cm-long open-closed tube of air.

Five properties of metal

A car travels 35.0 mph north for 1.00 hour, then 40.0 mph east for 0.0500 hour, and finally 50.0 mph northeast for 2.00 hours. Calculate the average speed.

A 500 lb steel beam is lifted up by a crane to a height of 100 ft and is held there. A) How much work is being done to hold the beam in place? B) How much work was done to lift the beam?

If Light is shone through the slits of a card onto a sheet of white paper describe what is seen.

When you break a magnet in half, how many poles does each piece have? Explain.

What can you use to unscrew a tiny screw?