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Debora [2.8K]
3 years ago
8

Is the relationship between velocity and centripetal force a direct, linear or nonlinear square relationship?

Physics
1 answer:
Svet_ta [14]3 years ago
5 0

Answer:

non linear square relationship

Explanation:

formula for centripetal force is given as

a = mv^2/r

here a ic centripetal acceleration , m is mass of body moving in circle of radius r and v is velocity of body . If m ,and r are constant we have

a = constant × v^2

a α v^2

hence non linear square relationship

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Answer:

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And we know that:

distance = velocity*time

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This means that the images that the astronomers see today, actually happened years and years ago (So the night sky is like a picture of the "past" of the universe)

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8 0
3 years ago
A diver jumps from a high platform and stays in the air for 1 second. How high was the platform?
ivolga24 [154]

Answer: Depends

Explanation:

Depends on how much the diver weighs.

6 0
2 years ago
Assignments
sladkih [1.3K]

Hello there!

I hope you and your family are staying safe and healthy during this unprecendented time.

A) What is the work done?

Answer: We need to use the formula

w=-F_f(d)

w=-(35)(20)

w=-700J

B) What is the work done on the cart by the gravitational force?  

Alright, we know that the gravitional force is perpendicular to the diplacement. Therefore, we gonna use the following formula:

w=Fdcos90

w=0

C) What is the work done on the cart by the shopper?

This is the easier part, since we already know that the work done by the shopper is the same as the work done by the friction force

W shopper + W friction = 0\\W shopper = W-friction \\W shopper = 700J

D) Find the force the shopper exerts, using energy considerations.

F_f+Fcos25=0\\-35+Fcos25=0\\F=38.6N

E) What is the total work done?

You just need to add them:

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4 0
3 years ago
A wave has a frequency of 440 hz and a wavelength of 0.77m. What is the velocity of the wave
Lunna [17]

Answer:velocity of wave

=338.8 m/s

Explanation:

5 0
3 years ago
(6.9 * 10-6)(770 * 102)
meriva

Answer:

4948020

Explanation:

(6.9*10-6)(770*102)

<u>Multiply  6.9  by  10 . </u>

( 69 − 6 ) ( 770 ⋅ 102 )

<u>Subtract  6  from  69 . </u>

63 ( 770 ⋅ 102 )

<u>Multiply  770  by 102 . </u>

63 ⋅ 78540

<u>Multiply  63  by  78540 . </u>

4948020

5 0
3 years ago
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