Answer:
True.
Explanation:
Hypotheses are supposed to be tested, to be proven correct. They usually start from a small thought without 100% correct, but as you do further testing, they become stronger.
Answer:
B - Velocity
Explanation:
Velocity definition: “The speed of something in a given direction.”
A material that can easily flow is called a...
A. Fluid.
Answer:
Distance, r = 700.31 m
Explanation:
Mass of two objects, 
Force between the objects , 
We need to find the distance between the two objects. The force of gravitational between two objects is given by :

So, the distance between the objects is 700.31 m.
Helium only has 2 electrons. So the answer is C. 2