Bar magnets have 2 poles. I think. Answer: first choice
Answer:
The rate of heat rejection will be 347 GJ/hr
Explanation:
We have given that power plant uses energy of 365 GJ/hr
So energy uses 
Work done from turbine 
We have to find the rate of heat rejection to the atmosphere 
We know that 


So the rate of heat rejection will be 347 GJ/hr
Answer: F = 776.18N θ = 29.41°
Question:
The magnitude of the resultant force is to be 200 N, directed along the positive y-axis. Determine the magnitude of the force F Find the angle θ.
Attached is the image.
Explanation:
To solve this question we need to resolve the forces to the x and y axis.
For the x axis;
Fcosθ = 700cos15....1
For the y axis;
200 = Fsinθ - 700sin15
Fsinθ = 200 + 700sin15 ...2
Dividing equation 2 by 1
Fsinθ/Fcosθ = (200 + 700sin15)/700cos15
Tanθ = (200 + 700sin15)/700cos15
θ = Taninverse(200 + 700sin15)/700cos15)
θ = 29.41°
From equation 1;
F = 700cos15/cosθ
F = 700cos15/cos29.41
F = 776.18N
Answer:
Short answer, because copper wire does not have high resistance.
Explanation:
Cause it can take so much heat then when the sun beams down on it then the process gets alot more complicated it gets a little hotter than it starts to get more and more hotter .