Which term describes the number of protons in one atom of an element

Which of the following is the best paraphrasing of the Heisenberg uncertainty principle? Which of the following is the best paraphrasing of the Heisenberg uncertainty principle?

A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high. how much work is done (in ft-lb) in pulling half the rope to the top of the building?

To what temperature would you have to heat a brass rod for it to be 1.8 % longer than it is at 30 ∘c?

A cheetah runs with a positive acceleration. What does this tell you about the velocity time graph for the cheetah? A. Graph negative slope B. graph positive slope C. Graph positive area D. Graph negative area

A basketball player jumped straight up to grab a rebound. If she was in the air for 0.80 second, how high did she jump? A) 3.1 m B) 0.78 m C) 1.2 m D) 0.50 m

What is the total number of atoms in the following formula? CaBr2 04

The Amazon River is in Europe. True or False

A microwave oven operating at 120 volts is used to heat a sandwich if the oven draws 12.5 amperes of current for 45 seconds what is the power dissipated by the oven?

Which of the transformers are step-up transformers? Which of the transformers are step-down transformers?

1 A plane moving at 30m/s drops a load 200m down to the ground. How long did it take to hit the ground.