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Natasha_Volkova [10]
3 years ago
7

What are the two primary sources of energy for the earth

Biology
2 answers:
Nady [450]3 years ago
7 0
Crud oil and water are two primary sources of energy 
notsponge [240]3 years ago
6 0
What are the two primary sources of energy for the earth


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3 years ago
A small child gives a plastic frog a big push at the bottom of a slippery 2.0 meter long, 1.0 meter high ramp, starting it with
lesya692 [45]
First, let's find the angle of inclination using the tangent function.

sin θ = opposite/hypotenuse = 1 m/2 m
θ = 30°

Assuming the ramp is frictionless, the force balance is:
F = mgsinθ = ma
Cancelling out m,
a = gsinθ = (9.81 m/s²)(sin 30°) = 4.905 m/s²

Using the equation for rectilinear motion at constant acceleration,
x = v₀t + 0.5at²
2 m = (6 m/s)(t) + 0.5(4.905 m/s²)(t²)
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Using the equation for acceleration:
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Solving for v,
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