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natita [175]
2 years ago
11

It would not be economical to connect the houses to the National Grid.Give one reason why.

Physics
1 answer:
Goshia [24]2 years ago
8 0
Why is it not economical to connect houses to the national grid?
Why does it cost so much? Electricity is sent through the National Grid cables at very high voltages - between 132,000 and 400,000. It benefits National Grid to not have to keep investing in reinforcing the high-voltage grid necessary to transport the power long distances
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Two people on ice skates push against each other. The person on the left is 50kg, the person on the right is 60kg. If the person
Zarrin [17]

I got -3.6 m/s but I had to do conservation of momentum for this question. Which involves Newtons third law but with simply that law I do not know how to complete this question. If you would like me to post my work I will though! Sorry

6 0
2 years ago
which of the following are good conductors under normal conditions? A. Penny B.copper wire C. a dime D.plastic E.aluminum foil F
Anvisha [2.4K]

Answer:

see explanation

Explanation:

A,B,C,E

5 0
3 years ago
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A ball has an electric charge of +1.5 × 10-9 coulombs. At what distance from the ball's center is the electric field strength eq
dimaraw [331]
E=Fe/q                                                      
5.8x10^5N/C=Fe/(1.5x10^-9C)             
Fe=(5.8x10^5N/C)(1.5x10^-9C)
Fe=8.7x10^-4N

Fe=kq1q2/r²
8.7X10^-4N=(8.99x10^9N·m²/C²)(1.5x10^-9C)(1.5x10-9C)/r²
r²=(8.99x10^9N·m²/C²)(1.5x10^-9C)(1.5x10-9C)/(8.7x10^-4N)
√r²=√0.00002325
The final answer is r=4.8x10-3m

5 0
3 years ago
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If the strength of gravity is 9.8 newtons per kilogram, that means:
Igoryamba
Here, E<span>ach kilogram of mass weighs 9.8 newtons as it's unit value of it.

In short, Your Answer would be Option D

Hope this helps!</span>
4 0
3 years ago
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How does reducing the mass of a moving object by half (1/2) change its kinetic energy?​
allochka39001 [22]
Kinetic energy = 1/2 m v²
If we reduce the mass by half > m/2
Kinetic energy = 1/2 m/2 v²
We should know that 1/2 × 1/2 = 1/4
So kinetic energy will be :
1/4 × m × v²
7 0
3 years ago
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