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jonny [76]
3 years ago
10

Why scientists collect data about the moon?

Physics
1 answer:
Strike441 [17]3 years ago
6 0

Explanation:

Scientists collect data for decades after Apollo 11's return to earth. Finding include that the moon is moving farther away from earth and that the universal force of gravity is stable.

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Convertir 1200 ms a cs<br> Convertir 0,3 mm a cm.
Vaselesa [24]

Answer:

You can do the reverse unit conversion from cm/s to m/s, or enter any two units below: Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector quantity which specifies both magnitude and a specific direction), defined by distance in metres divided by time in seconds.

Explanation:

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3 years ago
Apparent brightness depends on which two properties?
Serjik [45]

Answer:

I believe it is luminosity and distance

Explanation:

So B

6 0
2 years ago
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1. How much work is done by a person if he lifts a load of 500 kg upto a height of 2m?​
iren [92.7K]

Explanation:

if we take g=9.8m/s^2

F=mg

m=500

F=500×9.8=4900N

h=2

so w=mgh

w=4900×2

=9800j

3 0
3 years ago
A soccer ball is kicked; it comes to rest after rolling through the grass. Why is this not considered a violation of Newton's Fi
julsineya [31]

Newton's law states that objects at rest/motion will remain at rest/motion "UNLESS" a force is acted upon it.

So the soccer ball got kicked, and then came to rest. This doesn't state that the soccer ball was still rolling when the force of someone's foot kicked the ball.

7 0
3 years ago
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A book light has a 1.4 W, 4.8 V bulb that is powered by a transformer connected to a 120 V electric outlet. The secondary coil o
VLD [36.1K]

Answer:

Turns of the primary coil: 500

Current in the primary coil: Ip= 0.01168A

Explanation:

Considering an ideal transformer I can propose the following equations:

        Vp×Ip=Vs×Is

Vp= primary voltaje

Ip= primary current

Vs= secondary voltaje

Is= secondary current

        Np×Vs=Ns×Vp

Np= turns of primary coil

Ns= turns of secondary coil

From these equations I can clear the number of turns of the primary coil:

Np= (Ns×Vp)/Vp = (20×120V)/4.8V = 500 turns

To determine the current in the secondary coil I use the following equation:

Is= (1.4W)/4.8V = 0.292A

Therefore I can determine the current in the primary coil with the following equation:

Ip= (Vs×Is)/Vp = (4.8V×0.292A)/120V = 0.01168A

5 0
3 years ago
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