a) An electric circuit is rates, 240V, 13Ω calculate the amount of current that can be used by this appliance.

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?