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Svetlanka [38]
3 years ago
8

A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate

Physics
1 answer:
Romashka [77]3 years ago
6 0

Answer:

Air resistance

Answer B is correct

Explanation:

The friction that occurs when air pushes against a moving object causing it to negatively accelerate is called as air resistance.

hope this helps

brainliest appreciated

good luck! have a nice day!

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An object with a mass of 10 kg is
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Answer:

See below

Explanation:

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A car is traveling to the right with a speed of 29m/s ​ when the rider slams on the accelerator to pass another car. The car pas
adoni [48]

Answer:

Acceleration of the car is 1.43\ m/s^2.

Explanation:

It is given that,

Initial speed of the car, u = 29 m/s

Finally it reaches a speed of, v = 34 m/s

Distance, d = 110 m

We need to find the acceleration of the car as it speed up. It can be calculated using third law of motion as :

v^2-u^2=2ad

a=\dfrac{v^2-u^2}{2d}

a=\dfrac{(34)^2-(29)^2}{2\times 110}

a=1.43\ m/s^2

So, the acceleration of the car as it speeds up is 1.43\ m/s^2. Hence, this is the required solution.

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At 1:00 a.m., someone breaks a window in the back of a store and robs the safe. On the way out, the thief is cut on a piece of b
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3 years ago
Is energy measured in joules
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Answer:

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Read 2 more answers
A planet of mass 7.00 1025 kg is in a circular orbit of radius 6.00 1011 m around a star. The star exerts a force on the planet
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Answer:

A) 1.88 * 10^17 m

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C) 1.95 * 10^34 J

Explanation:

Parameters given:

Mass of planet = 7.00 * 10^25 kg

Radius of orbit = 6.00 * 10^11 m

Force exerted on planet = 6.51 * 10^22 N

Velocity of planet = 2.36 * 10^4 m/s

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The circumference of the orbit is

C = 2 * pi * R

R = radius of orbit

C = 2 * 3.142 * 6.0 * 10¹¹

C = 3.77 * 10¹² m

Hence, distance traveled will be:

D = 0.5 * 3.77 * 10¹²

D = 1.88 * 10 ¹² m/s

B) Work done is given as:

W = F * D

W = 652 * 10²² * 1.88 * 10¹¹

W = 1.22 * 10³⁴ J

C) Change in Kinetic energy is given as:

K. E. = 0.5 * m * v²

K. E. = 0.5 * 7 * 10^25 * (2.36 * 10^4)²

K. E. = 1.95 * 10³⁴ J

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