When is a hypothesis formed in the process of conducting an experiment?

How to use proton, neutron, and isotope in a sentence

When you rub a glass rod with silk. The rod becomes positive charged, and the silk becomes negative. Also when you rub a rubber rod with fur, the rubber rod becomes negative and the fur becomes positively charge. Question:1.

What types of friction occur when you ride a bike through a puddle

A man pulls on his dog's leash to keep him from running after a bicycle. Which term best describes this example? negative work positive work negative force positive force

A ball is dropped off the side of a bridge after falling 1.55 s, what is the initial velocity

Why would a long series of gradual ramps be better than one short, steep ramp for moving heavy blocks of stone?

Why are some liquids more viscous than others?

If a person weighs 125 lbs, 8oz., how many mg does s/he weigh

An iron rod is: A:a good conductor of heat and electricity, but not magnetic B: magnetic and a good conductor of heat, but is an insulator of electricity C: magnetic and a good conductor of heat and electricity D: not magnetic and an insulator of

Which stage are there homologous chromosomes lines up down the middle of the cell