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bekas [8.4K]
3 years ago
13

Which statement is true about acceleration? who is an underated physicist?

Physics
1 answer:
wlad13 [49]3 years ago
4 0
Answer: A vehicle's capacity to gain speed within a short time...
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After a while, the car started to go around a long bend, still maintaining its constant speed of 55 miles per hour. Is there a n
sukhopar [10]

Answer:

4) True. The change of direction needs an unbalanced force

Explanation:

Let us propose the resolution of the problem using Newton's second law.

    F = m a

As the car is spinning the acceleration is centripetal

    a = v2.r

   

    F = m v2 / r

We can see that as the velocity of a vector even if its module does not change, the change of direction requires an external force.

Now we can analyze the statement if they are true or false

1) and 3) False, even when the speed changes, the direction changes

2) False with the speed change can be determined

4) True. The change of direction needs an unbalanced force

5) False are different things. the direction is where it is going and the speed is the magnitude of the vector

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3 years ago
Kepler's first law states that planets orbit the Sun in a path called a(n)
wariber [46]
The answer would be C.
3 0
3 years ago
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What is the difference between celestial and terrestrial in planetary terms? Someone please answer
andriy [413]

"Celestial"  =  anything to do with the sky

("Cielo" ..... Spanish for "sky"
 "Ceiling" ... that thing up over your head
 "Caelum" .. Latin for "heaven")


"Terrestrial"  =  anything to do with the Earth

("Terra" ... Latin for "Earth")
5 0
3 years ago
if a car is moving on a highway at 70 kilometers per hour going east, what happens to its speed and velocity ​
Andrej [43]
The speed is constant since there is no opposite force facing the car

That’s my best guest hope it helps !! :)
7 0
3 years ago
NEED HELP FAST ILL MARK BRAINLIEST AND RATE 5 STARS AND SAY THANK YOU
Vitek1552 [10]
It would be letter C


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3 years ago
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