2
For the one I can do to make it to get my stuff ready for my
<h2>
Answer: its density will decrease</h2>
By increasing the temperature of the iron sphere, its volume will increase (due to the material of which it is composed), this is a phenomenon known as<em> thermal dilation</em>. However, the mass of the sphere will remain the same.
On the other hand, density
is a characteristic property of substances and materials and is defined as the relationship between the mass
and volume
of a specific substance or material, as shown below:

This means <u>density is inversely proportional to volume</u>. Therefore, increasing the temperature of the iron sphere, its volume will be increased and <em><u>its density will be decreased</u></em>.
Answer: Gravity slows the ball down as it goes up and eventually stops it from going up and starts to pull it back down to earth.
Explanation:
C.-2 miles per hour per second
Explanation;
Acceleration = change in velocity / time
Acceleration = (final velocity - initial velocity )/time
Acceleration = (v - u)/t
Given: u = 20 miles per hour, v = 10 miles per hour
t = 5 seconds
Acceleration = (10 - 20)/5
Acceleration = -10/5
Acceleration = -2 miles per hour per second