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amm1812
3 years ago
10

American football uses a field that is 100.0yd long, whereas the a soccer field is 100.0m long. Which field is longer and by how

much( give yards,meter, and percent).
I know the yards and meters. I do not know how to find percent. Please help asap. Thanks
Physics
1 answer:
Vitek1552 [10]3 years ago
8 0
The soccer field is  9.36%  longer. 
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When the starter motor on a car is engaged, there is a 310 A current in the wires between the battery and the motor. Suppose the
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Answer:

Diameter will be 351.42 mm

Explanation:

We have given current flowing in the copper wire i = 310 A

Voltage drop across the wire V = 0.55 volt

We know that resistance is given by R=\frac{V}{i}=\frac{0.55}{310}=0.00177\Omega

Length of the copper wire l = 1 m

Resisitivity of the copper wire \rho =1.72\times 10^{-8}\Omega m

We know that resistance R=\frac{\rho l}{A}

0.00177=\frac{1.72\times 10^{-8}\times  1}{A}

A=969.4545\times 10^{-8}m^2

As area A=\pi r^2

3.14\times r^2=969.4545\times 10^{-8}

r=17.57\times 10^{-4}m

So diameter d=17.57\times 10^{-4}\times 2=35.142\times \times 10^{-4}m = 351.42 mm

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3 years ago
Three joggers are running along straight lines as follows: Jogger A, with a mass of 55.2kg, is traveling along the line y=6.00m
frutty [35]

Answer:

L = - 1361.591 k Kgm/s

Explanation:

Given

mA = 55.2 Kg

vA = 3.45 m/s

rA = 6.00 m

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vB = 4.23 m/s

rB = 3.00 m

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vC = 4.75 m/s

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then we apply the equation

L =  (mv x r)

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⇒  LB = mB*vB x rB = 62.4 *(4.23 j)x(3 i) = (- 791.856 k) Kgm/s

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Finally, the total counterclockwise angular momentum of the three joggers about the origin is

L = LA + LB + LC = (1142.64 - 791.856 -1712.375) k  Kgm/s

L = - 1361.591 k Kgm/s

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3 years ago
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Answer:

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