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kipiarov [429]
3 years ago
8

Please help

Physics
1 answer:
garri49 [273]3 years ago
4 0

Answer:

Exerxingtransforms the chemical energy in the food you eat into Kinetic Energy.

Therefore, the answer is A. Kinetic Energy

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Scientific explanation of the term “speed”
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Explanation:

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Indicate whether a change in the value of each of the following determinants of demand leads to a movement along the demand curv
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1)the car's engine power is 44000W. Explain this number in a physical sense
Ratling [72]

Answer:

1) It expresses the rate (top speed) at which it can move with time.

2) P = 20 W

3) h = 18 km

Explanation:

1) Power is the rate of transfer of energy.

⇒ Power = \frac{Energy(or workdone)}{Time}

i.e P = \frac{E}{t}

Thus a car's engine power is 44000W implies that the engine of the car can propel the car at this rate. This expresses the rate (top speed) at which it can move with time.

2) m = 400g = 0.4 kg

    t = 20 s

h = 100m

g = 10 m/s^{2}

P = \frac{mgh}{t}

  = \frac{0.4*10*100}{20}

  = \frac{400}{20}

P = 20 W

3) u = 600 m/s

   g = 10 m/s^{2}

From the third equation of free fall,

V^{2} = U^{2} - 2gh

V is the final velocity, U is the initial velocity, h is the height.

0 = (600)^{2} - 2 x 10 x h

0 = 360000 - 20h

20h = 360000

h = \frac{360000}{20}

  = 18000

h = 18 km

The maximum height of the bullet would be 18 km.

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3 years ago
GIVING BRAINLIEST PLEASE HELP!!
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Answer:

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Explanation:

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2 years ago
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Because of inertia, it will be ____ to stop a larger object than a smaller object if they are both moving at the same speed.
strojnjashka [21]

Answer:

harder

heavier objects resist change more than lighter objects.

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3 years ago
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