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Harman [31]
3 years ago
15

What percentage of the world's energy needs is supplied by fossil fuels?

Physics
1 answer:
bagirrra123 [75]3 years ago
5 0
13.4 %

Hope this helped
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Answer:

I = -2.1 kg.m/s

Explanation:

Given,

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final speed, v_f = -4 m/s

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Hence, impulse of the object is equal to I = -2.1 kg.m/s

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A train, traveling at a constant speed of 25.8 m/s, comes to an incline with a constant slope. While going up the incline, the t
zhannawk [14.2K]

The final velocity of the train after 8.3 s on the incline will be 12.022 m/s.

Answer:

Explanation:

So in this problem, the initial speed of the train is at 25.8 m/s before it comes to incline with constant slope. So the acceleration or the rate of change in velocity while moving on the incline is given as 1.66 m/s². So the final velocity need to be found after a time period of 8.3 s. According to the first equation of motion, v = u +at.

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Answer:

Explanation:

False

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