Answer:

Explanation:
The volume of the shell is the difference between the volume of the outer sphere and the volume of the inner sphere
The mass of the shell is the product of the volume and its density
Answer:
Plan A
Explanation:
Acceleration in a circle is toward the center of the circle, while velocity is always a straight line that's tangent to the circle. When the boy let's go of the rope the Acceleration toward the center of the circle disappears. The v ball then follows the straight path, tangent to the circle.
B.
Refrigerants should be handled using approved equipment only.
C. making fun of a peer because she is Asian
hope this helps