The spinning turbine converts mechanical energy into electrical energy that is converted into light energy used to light up the house.
<h3>What is law conservation of energy?</h3>
The law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another.
The spinning turbine works on the principle of mechanical energy.
Thus, the spinning turbine converts mechanical energy into electrical energy that is converted into light energy used to light up the house.
Learn more about mechanical energy here: brainly.com/question/24443465
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Answer:
Part(a): The average acceleration is
during the first 6s.
Part(b): The average acceleration from 6s to 8s is zero.
Explanation:
Part(a):
The average acceleration is defined as the rate at which velocity is changing with respect to time. So if '
', '
' and '
' represents the initial velocity, final velocity, and average acceleration of a particle, then mathematically
![a_{av} = \dfrac{v_{f} - v_{i}}{t}](https://tex.z-dn.net/?f=a_%7Bav%7D%20%3D%20%5Cdfrac%7Bv_%7Bf%7D%20-%20v_%7Bi%7D%7D%7Bt%7D)
where '
' is the time taken by the particle to achieve the velocity '
' starting from initial velocity '
'
Given in the problem,
.
So the average acceleration(
) during the first 6 s will be
![a_{av} = \dfrac{11 - 0}{6}~m~s^{-2} = 1.83~m~s^{2}](https://tex.z-dn.net/?f=a_%7Bav%7D%20%3D%20%5Cdfrac%7B11%20-%200%7D%7B6%7D~m~s%5E%7B-2%7D%20%3D%201.83~m~s%5E%7B2%7D)
Part(b):
During the time between 6 s to 8 s, as mentioned in the problem, the sprinter maintains the constant velocity. So the average acceleration during this time interval will be zero.
Not only astronomers, but all scientists use the technique of rock dating to determine the age of the universe. From the Big Bang Theory, all the celestial bodies were made at the same time. So, the age of the Earth is just the same with the age of the universe. So, they gather rocks deep down in the crust of the Earth and let it undergo radioactive decay. By determining the amount of radioactive material left and half-life, they could compute the age of the Earth.
Answer:
The formula is: weight/mass = gravitational field strength. On Earth the gravitational field strength is 10 N/kg.
Explanation: