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poizon [28]
3 years ago
9

Calculate the power of a car that does 50,000 J of work in 7s during a race

Physics
1 answer:
Fantom [35]3 years ago
6 0
Answer =7,142.9W

I hope this helps (:
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4 years ago
A machine does 500 j of work in 20 sec. What is the power of this machine?
NNADVOKAT [17]

Explanation:

P=W/t

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A gas is taken in a vessel which is then sealed. The gas is then heated. How will the
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An astronaut of mass 65kg in training rides in a seat that is moved in uniform circular motion by a radial arm 5.10 meters long.
ikadub [295]
<h3><u>Answer;</u></h3>

= 2868 Newtons

<h3><u>Explanation;</u></h3>

Centripetal force is a force that acts on an object or a body in circular path and is directed towards the center of the circular path.

Centripetal force is given by the formula;

mv²/r ; where m is the mass of the body, r is the radius of the circular path and v is the velocity of a body;

mass = 65 kg, velocity = 15 m/s and r = 5.1 m

Therefore;

Centripetal force = (65 × 15²)/ 5.10

                            = 2867.65 Newtons

                            = 2868 N

7 0
3 years ago
An object is moving at 5 m/s and a height of 4m. If the object has a mass of 5kg what is it mechanical energy
Lady bird [3.3K]

Answer: 258.7 J

Explanation:

E=Ek+Ep

E=m*V²/2 +mGh

E=5*25/2+5*9.81*4

E=62.5+196.2

E=258.7 J

3 0
3 years ago
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