Answer: 80.384 cubic cm /min
Explanation:
Let V denote the volume and r denotes the radius of the spherical snowball .
Given : 
We know that the volume of a sphere is given by :-

Differentiating on the both sides w.r.t. t (time) ,w e get

When r= 8 cm

Hence, the volume of the snowball decreasing at the rate of 80.384 cubic cm /min.
Answer:
How much does a hair weigh in MG?
An average hair (about six inches in length) weighs about 0.2-0.4 milligrams or 0.00015 ounces. A healthy person has anywhere between 80,000 and 120,000 hairs on their head.
Explanation:
Answer: -2.5
Explanation:
1/2(-5)= -2.5
-2.5(1)= -2.5
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Answer:
a. The speed of the wave is 319.1m
b. The tension in the string is 41.74N
Explanation:
Please see the attachments below