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Rashid [163]
3 years ago
8

What would be the most accurate way to describe resistance

Physics
2 answers:
Gemiola [76]3 years ago
3 0

Answer:hit is the abilty to accept the flow of current and is measured in ohoms

Explanation:

Just because it is

Minchanka [31]3 years ago
3 0

Answer:it is an objects ability to accept the flow of current and is measured in ohms

Explanation:

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The electric motor of a model train accelerates the train from rest to 0.685 m/s in 21.5 ms. The total mass of the train is 875
Natali [406]

Answer:

P=9.58 W

Explanation:

According to Newton's second law, and assuming friction force as zero:

F_m=m.a\\F_m=0.875kg*a

The acceleration is given by:

a=\frac{\Delta v}{t}\\a=\frac{0.685m/s}{21.5*10^{-3}s}\\\\a=31.9m/s^2

So the force exerted  by the motor is:

F_m=0.875kg*31.9m/s^2\\F_m=27.9N

The work done by the motor is given by:

W_m=F_m*d\\\\d=\frac{1}{2}*a*t^2\\d=\frac{1}{2}*31.9m/s^2*(21.5*10^{-3}s)^2\\\\d=7.37*10^{-3}m

W_m=27.9N*7.37*10^{-3}m\\W_m=0.206J

And finally, the power is given by:

P=\frac{W_m}{t}\\P=\frac{0.206J}{21.5*10^{-3}s}\\\\P=9.58W

8 0
3 years ago
What distance will a car cover while uniformly accelerating from 12m/s to 26m/in 14 seconds​
VikaD [51]

Answer:

Distance = 266m

Explanation:

6 0
3 years ago
Convert 3.45inches into km
Katyanochek1 [597]

Answer:

can someone please answer this i need this for a mastery test aswell

Explanation:

it would be very appreciated

8 0
3 years ago
Read 2 more answers
Picture attached please help! 2 different questions!
Maksim231197 [3]

Wave A would have higher amplitude

Hope this helps :D

7 0
3 years ago
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6. Which of these contain muscles that are not under the mind's control? (Select all that apply.)
Arada [10]

Answer:

a   c

Explanation:

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3 years ago
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