Answer:
Melting and frezzing are physical changes
Answer:
F =
.
Explanation:
Gravitational force between two objects of masses
kept at a distance r is given by the formula
F = 
Here ,
= 2m
= 
Thus , F = 
F =
.
<span>There is a net force of 15 N allowing Levi and Clara to move the box would be your answer which is B</span>
Answer:
The force is pull or push acting on the body which tends to change its state of rest or of motion is called force.
There are two types of force:
1.Contact force
2. Non-Contact
Answer: The amount of light that enters the pupil is controlled by the Iris
Explanation: