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Nady [450]
3 years ago
9

Why does Earth's moon have no atmosphere?

Physics
1 answer:
Margaret [11]3 years ago
6 0
You can eliminate the answer A because the moon is super cold
For answer B, atmosphere is contained of gasses, not just oxygen alone
Definitely not C 
The answer is D because the moon's gravity isn't strong enough to hold the gasses, as a result, only a small amount of gasses has an attraction to it ( the moon has a little atmosphere though) but not enough to be considered
 
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A car rounds a curve while maintaining a constant speed. Is there a net force on the car as it rounds the curve?
Nesterboy [21]

Answer:

Yes, Centripetal Force acts on the Car.

Explanation:

When a car undergoes a circular motion, a centripetal force acts onto it.

Centripetal Force = [m*(v^2)]/R , where

  • R is the radius of curve
  • v is the constant speed
  • m is the mass of the car
4 0
4 years ago
Animals are the only way that native plant seeds can be dispersed.<br> O True<br> O False
irakobra [83]
True
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4 0
2 years ago
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What derived unit is used to measure the slope of the line in this graph?
vlabodo [156]

Answer:

C. g/cm³

Explanation:

The slope is measured by calculating the variation of the Y values over the X values between two points on a line.  

So, the formula is: Slope = Δy/Δx

That means that we also take the units.

In this case, the Y-axis unit is in g, while the X-axis unit is in cm³.

Dividing a Y-variation over an X-variation will give you g/cm³.

In this case, let's assume the line passes through (10,100) (not exactly, but close enough for the example), and it passes through (0,0)

So the slope would be: (100-0) g / (10-0) cm³ = 10 g/cm³

3 0
4 years ago
Two ice skaters suddenly push off against one another starting from a stationary position. The 50 kg skater acquires a speed of
Liono4ka [1.6K]

Answer:

V_{22}=0.25m/s

Explanation:

From the question we are told that:

Mass 1 M_1=50kg

Speed 1 V_1=0.3m/s

Mass 2 M_2=60kg

Generally the equation for momentum is mathematically given by

 M_1V_{11}+m_2V_{21}=M_1V_{12}+m_2V_{22}

Where

 v_{11}=v_{21}=0

Therefore

 M_1V_12-M_2V_22

 V_{22}=\frac{m_1v22}{m_2}

 V_{22}=\frac{m_1V_22}{m2}

 V_{22}=\frac{50*0.3}{60}

 V_{22}=0.25m/s

7 0
3 years ago
If you lower the resistance, then the current will change. How?
Marysya12 [62]
Ohm's law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R). ... Similarly, increasing the resistance of the circuit will lower the current flow if the voltage is not changed..hope it helps out
8 0
3 years ago
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