Answer:
The amount of work is 89600 ft-lb.
Explanation:
Given that,
Length of the cable = 160 ft
Weight density = 7 lb/ft
Weight of cable to be filled = 7(160-x)
We need to calculate the amount of work
Using formula of work done
On integration
Hence, The amount of work is 89600 ft-lb.
The component of weight(
mg) that is responsible for the motion of boxes on ramp is:
Where m = mass of the boxes.
g = Acceleration due to gravity = 9.8
= The angle the ramp makes with the ground. In this case it is 30°.
Since the frictional force is:
μ*N.
Where,
μ = Frictional Coefficient
N = Normal to the ramp =
Therefore, the frictional force becomes =
= μ*
Apply Newton's second law we would get:
- μ*
=
=>
=
μ
-- (A)
Now according to equation of motion:
Where x = 5.8m
= 0
= 0
= 10.24
Plug in the value in the above equation you would get:
= 1.1328
Plug in
in equation (A) and solve for
μ, you would get,
μ = 0.4439
Answer:
Because 1 change in one factor can effect the other and that one can effect the other and so on and so on.
So, let's just say water were to stop flowing, how would the oceans take that? How would precipitation take it?
An element refers to a collection of atoms having the same number of protons and electrons (an atomic number). In each element there is a different atomic number due to a different amount of protons in the nucleus.
An isotope is a variation of an element that contains a different number of neutrons, therefore adding weight to the atom.
An ion is a charged atom, and its charge shows how many electrons it needs to gain or lose in order to become stable.
Answer:
Light travels fast in air but i dont know about water