What is the difference between the control group and the experimental group in an experimental study?

If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance. what is its vertical displacement (in m) after 6 s?

What type of nuclear decay causes the atomic number of an element to increase by 1?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant