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valina [46]
3 years ago
12

Explain why adding oil to the moving parts of a machine can increase its efficiency

Physics
2 answers:
Vinvika [58]3 years ago
6 0
Adding oil to the moving parts of machines can do that because it makes it smoother and takes the rust off of it.
OLEGan [10]3 years ago
4 0
Because oil reduces loss of input work caused due to frictional heat and more output work will be done
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A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. The magne
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Given Information:  

Resistance of circular loop = R = 0.235 Ω 

Radius of circular loop = r = 0.241 m

Number of turns = n = 10

Voltage = V = 13.1 V

Required Information:  

Magnetic field = B = ?  

Answer:  

Magnetic field = 0.00145 T

Explanation:  

In a circular loop of wire with n number of turns and radius r and carrying a current I induces a magnetic field B

B = μ₀nI/2r

Where μ₀= 4πx10⁻⁷ is the permeability of free space  and current in the loop is given by

I = V/R

I = 13.1/0.235

I = 55.74 A

B = 4πx10⁻⁷*10*55.74/2*0.241

B = 0.00145 T

Therefore, the magnetic field at the center of this circular loop is 0.00145 T

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The momentum of both the identical balls would eventually be transferred to one another when it comes to a point wherein they will collide. In addition, the phenomenon is called an elastic collision wherein both the momentum and energy of the system would considered to be conserved.
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Which point or points of view could be present in a business letter?
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Answer: A and C (i took the test)

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