What is the potential energy of a 12 kg box on a 5 m high shelf?

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

More solar radiation is absorbed by earth’s surface than by