How do the forces in nuclear and chemical reactions differ?

The power rating of a vacuum cleaner is 0.8 kilowatts. If you use the vacuum cleaner for 2.5 hours, how much energy does it use?

An astronaut weighs 700 N on Earth what is the astronaut's Mass on Earth?

The Congo River is in Africa. True or False

Calculate the orbital period of a spacecraft in an orbit 300 kilometers above earth's surface

Consider a string of length 1.0 meter, fixed at both ends, with mass 100 grams and tension 100 newtons. part a give the number of nodes and antinodes set up on the string if it is driven at a frequency of 95 hertz.

True or false we have mucus that covers are stomach which prevents or stomach acid from digesting or stomach

a man applies a force of 100n to a rock for 60 seconds but the rock does not move what is the amount of work done by the man on the rock

The driver of a car traveling at 32 m/s applies the brakes and undergoes a constant deceleration of 2.25 m/s^2.

You are going to develop some photographic film that involves a chemical reaction between the developer, which you will mix yourself, and a chemical on the surface of the film.

Would time travel mean that parallel universes would be created off our linear time sequence to ensure the universe doesn't collapse itself because of significant events being drastically changed in the way it shapes the universe?