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Anarel [89]
3 years ago
5

The force that keeps objects moving in a circle is called centrifugal force. True False

Physics
2 answers:
Whitepunk [10]3 years ago
6 0

Answer:

The force that keeps objects moving in a circle is called centrifugal force. FALSE.

Explanation:

The force that keeps objects moving in a circle path is called centripetal force. It foes this by pulling the object into the center of the circle

Doss [256]3 years ago
3 0

Answer: False

Explanation:

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If you have lifted 10 pounds 2 feet, you have done ___ foot-pounds of work.
nasty-shy [4]
Work = Force x distance
          (10 pounds)(2 feet)
Work = 20 foot-pounds of work

hope this helps :)


8 0
3 years ago
A spaceship is headed toward Alpha Centauri at 0.999c. According to us, the distance to Alpha Centauri is about 4 light-years. H
aniked [119]

Answer:

According to the travellers, Alpha Centauri is <em>c) very slightly less than 4 light-years</em>

<em></em>

Explanation:

For a stationary observer, Alpha Centauri is 4 light-years away but for an observer who is travelling close to the speed of light, Alpha Centauri is <em>very slightly less than 4 light-years. </em>The following expression explains why:

v = d / t

where

  • v is the speed of the spaceship
  • d is the distance
  • t is the time

Therefore,

d = v × t

d = (0.999 c)(4 light-years)

d = 3.996  light-years

This distance is<em> very slightly less than 4 light-years. </em>

4 0
3 years ago
A racing car accelerates at the end of the race from a speed of 100
nevsk [136]

4/3 m/s ( approximately 1.3333... m/s)

5 0
2 years ago
Before a star is born, the matter that will become the star exists as a
vazorg [7]

Answer:

The answer is D

Explanation:

I'm too lz to explain everything.

sorry.

6 0
3 years ago
Read 2 more answers
What is the maximum height a 95 W motor may vertically lift a 120 N weight in 6.2 s?
leva [86]

Answer:

a. 4.9 m

Explanation:

To solve this problem we must take into account that power is defined as the relationship between the work and the time in which the work is done.

P = W/t

where:

P = power = 95 [W] (units of watts)

W = work [J] (units of Joules)

t = time = 6.2 [s]

We can clear the work from the previous equation.

W = P*t

W = 95*6.2 = 589 [J]

Now we know that the work is defined by the product of the force by the distance, therefore we can express the work done with the following equation.

W = F*d

where:

F = force = 120 [N] (units of Newtons)

d = distance [m]

d = W/F

d = 589/120

d = 4.9 [m]

4 0
3 years ago
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