Answer:
D
Explanation:
If it is of very high intensity it will be 85-100%
When a star is moving away from earth it appears blue
Hi!
The answer is <span>B. Language influences how people understand their world.
Hope this helps!
-Payshence xoxo</span>
Answer:
U = -3978.8 J
Explanation:
The work of the gravitational force U just depends of the heigth and is calculated as:
U = -mgh
Where m is the mass, g is the gravitational acceleration and h the alture.
for calculate the alture we will use the following equation:
h = L-Lcos(θ)
Where L is the large of the rope and θ is the angle.
Replacing data:
h = 12.2-12.2cos(58.4)
h = 5.8 m
Finally U is equal to:
U = -70(9.8)(5.8)
U = -3,978.8 J
