Which of the following are scientific hypothesis

tides are caused by the moon,

earth rotates around it's axis because living things need an alternation of light and darkness,

chlorophyll makes grass green

What happens to the magnitude and sign of the enthalpy change when a process is reversed?

Suppose you balance a 2.4 kg ball on the tip of your finger, which has an area of 1.4 cm squared? Find the pressure on your finger.

A 22 kg sled is pushed for 5.2 m with a horizontal force of 20 N, starting from rest. ignore friction. find the final speed of the sled. 2.2 m/s 4.7 m/s 9.5 m/s 3.1 m/s

What is the relationship between atomic radius, ionization energy, and electronegativity? What is the relationship between atomic radius, ionization energy, and electronegativity?

What is an example of revolving motion

How could you find out which wire is broken in a cable?

Which block has more thermal energy? if the blocks are placed in thermal contact, will the thermal engery of the blocks change?

What is long term potentiation

Which of the following describes a conductor? A. a rubber shoe sole with electrons stuck to the bottom. B. Electrons moving freely through a copper wire. C. a balloon with a small region of negatively charged electrons. D.

An impala is an African antelope capable of a remarkable vertical leap. In one recorded leap, a 45 kg impala went into a deep crouch, pushed straight up for 0.21 s, and reached a height of 2.5 m above the ground.