A direct result of having greenhouse gases in the atmosphere would be energy from the sun trapping its self within the earth's atmosphere and ground, producing a lot of heat in the process since it cannot escape, making some temperatures rise substantially in some regions. However, another direct result would be plant growth. Greenhouse gasses are made of carbon dioxide, or CO2, and plants cannot live without carbon dioxide. It also causes a significant amount of water vapor which provides more rain as a direct result like it does carbon dioxide, which makes our planet healthier and able to survive easier.
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Answer:
potential enrgy U = m g L sin θ
speed V = √(2g L sin θ)
Explanation:
The expression for the gravitational potential energy of a body is
U = mg Y - mg Yo
Where Y give us a constant initial energy from which the differences are measured, for general simplicity it is selected as zero, Yo= 0
What we find an expression for height, let's use trigonometry
sin θ= Y / L
Y = l sin θ
We substitute in the power energy equation
U = m g L sin θ
2. The mechanical energy of the system is conserved, so we will write the mechanical energy at two points the highest and the lowest
Highest Em = U
Lower Em = K
U = K
m g L sin θ = ½ m v²
V = √(2g L sin θ)
Answer:
a is potential and b is kinetic
The Gravitationa potential energy of the mass (PEG) is given by:
where
m is the mass
g is the gravitational acceleration
h is the heigth of the mass above the reference level (the ground)
In this problem,
and
, therefore the gravitational potential energy of the mass is:
