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hodyreva [135]
2 years ago
9

An object weighs 1200 newtons on a planet. what is the gravitational field strength of this planet if rthe object is 60 kilogram

s ​
Physics
1 answer:
ratelena [41]2 years ago
3 0
G = F/m
= 1200/60
= 20 N/Kg
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Explanation:

Velocity =speed+direction speed =distance/time

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Ricardo, of mass 80 kg, and Carmelita, who is lighter, are enjoying Lake Merced at dusk in a 30 kg canoe. When the canoe is at r
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Answer:

m=57.65 kg

Explanation:

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Ricardo mass m₁=80 kg

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Let the center of mass is at x distance from the canoe center and it will be towards the Ricardo cause. So the toque around the center of mass is given as

m_{1}(L/2-x)=m_{2}x+m_{2}(L/2-x)

We have to find m₂.To find the value of m₂ first we need figure out the value of.As they changed their positions the center of mass moved to other side by distance 2x.

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2x=40

x=40/2

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Answer:

The minimum inductance needed is 2.78 H

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Given;

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The root mean square current is given by;

I_{rms} = \frac{I_o}{\sqrt{2} } \\\\I_{rms}  = \frac{126*10^{-3}}{\sqrt{2} }\\\\I_{rms}  =0.0891 \ A

The inductive reactance is given by;

X_l = \frac{V_{rms}}{I_{rms}} \\\\X_l= \frac{41.2}{0.0891}\\\\X_l = 462.4 \ ohms

The minimum inductance needed is given by;

X_l = \omega L\\\\X_l = 2\pi  fL\\\\L = \frac{X_l}{2\pi f}\\\\L = \frac{462.4}{2\pi *26.5}\\\\L = 2.78 \ H

Therefore, the minimum inductance needed is 2.78 H

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