Gasoline comes from petroleum, which is a fossil fuel. Petroleum, coal and natural gas (methane) are all made in the earth's crust from the bodies of plants and animals that died long ago. That's why they are called fossil fuels.
The sun provides the energy that all life needs to grow and reproduce. Therefore, fossil fuels can be considered a form of solar energy that has been stored in the bodies of living things, and then concentrated in hydrocarbon deposits in the earth's crust.
The fact is that all the energy on earth comes from the sun, directly or indirectly, except for nuclear energy, which comes from radioactive elements that were made in other stars that existed before the sun.
Hope this helps!!!
<span>Let t be the angle made by T3 with the x-axis.
T3 * cos(t) = 20 N ---- (1)
T3 * sin(t) = 60 N ----- (2)
Square both equations and add:
T3^2 = 20^2 + 60^2 = 400 + 3600 = 4000
T3 = sqrt(4000) = 63.25 N
divide (2) by (1):
tan(t) = 60/20 = 3
t = arctan(3) = 71.57 degrees.
</span><span>Since the angle clockwise from the x-axis some books may call it a negative angle and say the angle is -71.57 degrees or round it to -71.6 or even -72 degrees.</span>
Complete Question
The complete question is shown on the first uploaded image
Answer:
The correct option is option 3
Explanation:
From the question we are told that
The diameter of solenoid 1 is 
The length of solenoid 1 is 
The number of turns of solenoid is 
The diameter of solenoid 2 is 
The length of solenoid 2 is 
The number of turns of solenoid 2 is 
Generally the magnetic in a solenoid is mathematically represented as
From this equation we see that
Here C stands for constant
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