3 years ago

I’m on a test please help me

Physics

1 answer:

77julia77 [94]3 years ago

3 0

False.acceleration is change in distance

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For the different values given for the radius of curvature RRR and speed vvv, rank the magnitude of the force of the roller-coas

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Explanation:

The force of the roller-coaster track on the cart at the bottom is given by :

$F=\dfrac{mv^2}{R}$ , m is mass of roller coaster

Case 1.

R = 60 m v = 16 m/s

$F=\dfrac{(16)^2m}{60}=4.26m\ N$

Case 2.

R = 15 m v = 8 m/s

$F=\dfrac{(8)^2m}{15}=4.26m\ N$

Case 3.

R = 30 m v = 4 m/s

$F=\dfrac{(4)^2m}{30}=0.54m\ N$

Case 4.

R = 45 m v = 4 m/s

$F=\dfrac{(4)^2m}{45}=0.36m\ N$

Case 5.

R = 30 m v = 16 m/s

$F=\dfrac{(16)^2m}{30}=8.54m\ N$

Case 6.

R = 15 m v =12 m/s

$F=\dfrac{(12)^2m}{15}=9.6m\ N$

Ranking from largest to smallest is given by :

F>E>A=B>C>D

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2 years ago

What is the most abundant gas in the atmosphere?

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Answer: Nitrogen

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Water vaper makes up between 1-4%, depending on the region.

Carbon Dioxide makes up only about 0.04%.

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Which two objects have stored energy?

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3) a stretched rubber band

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What is the importance of a reference point when looking at motion

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It is important to use a fixed common reference point on your work peace or drawing to avoid cumulative error

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What is the average speed of a bowling ball that travels a distance of 5.0 m in 2.58 seconds?

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Answer:

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Explanation:

Speed= Distance/Time

5.0/2.58 = 1.937984496

= 1.94 m/s (2dp)

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