The actual mechanical advantage, the velocity ratio, and the length of the slope if the height of the slope is mathematically given as
<h3>What are the actual mechanical advantage, the velocity ratio, and the length of the slope if the height of the slope is 10 m?</h3>
Question Parameters:
A block of weight 5000 N is pushed up a slope by a force of 250 N.
Generally, the equation for the actual mechanical advantage is mathematically given as
A=Fout/Fin
A=5000/250
A=20
b)
the velocity ratio is given by the distance moved by the effort divided by the distance moved by the load
Therefore
VR=250/5000
VR=0.05
c)
the length of the slope if the height of the slope is 10 m
Assume the slope is at an angle of 30
Hence
sin 30=10/x
x=20m
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Answer: reduced greenhouse gases
Explanation:
The use of tides for energy is known as tidal energy. This is a type of energy that can be renewed. It results when gravitational fields from both the sun and the moon, combined with the earth’s rotation around its axis, causes high and low tides. The advantages of tidal energy includes:
- it is a renewable energy,
- it us environmental friendly: this is so because it dosent emit any climate gases
(example, carbondioxide)that can cause green house effects.
Green house effects occurs when green house gases such as carbondioxide traps in heat from the sun and cause a gradual rise in earth's atmospheric temperature.
Answer:
116.7 Hz
Explanation:
Let there are two wires A and B.
Tension in wire A = T
Tension in wire B = 2T
Length of wire A = L
Length of wire B = 2L
fundamental frequency in wire A, fA = 330 Hz
let the fundamental frequency in wire B is fB.
The formula for the fundamental frequency is given by
where, μ is the mass per unit length
mass per unit length of wire A = Area of wire A x density
mass per unit length of wire B = Area of wire B x density
So,
fB = 330 / 2.828
fB = 116.7 Hz
Thus, the frequency in the second wire is 116.7 Hz.
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