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irinina [24]
3 years ago
5

when a body of mass 0.25kg is acted upon by a force, the velocity changes from 5m/s to 7.5m/s. Calculate the work done by the fo

rce​
Physics
1 answer:
lisov135 [29]3 years ago
8 0

Answer:

Work done by the force = 1/2m×(v2 - v1)²

m = mass

v2 = final velocity

v1 = initial velocity

= 1/2(0.25)(7.5-5)²

= 1/2(0.25)(2.5)²

= 1/2(0.25)(6.25)

= 0.78J

Hope this helps.

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Answer:

d.100 meters

Explanation:

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Here we are using 1 millimiter (1 mm) to represent 1 light-year (1 ly). So, we can set the following proportion:

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and by finding x, we find the diameter of the Milky Way Galaxy in the scale used:

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Two advantages of solar energy over energy from Fossil fuels​
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Answer:

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Explanation:

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A flat coil of wire has an inductance of 40. 0 mh and a resistance of 6. 00 ω. It is connected to a 21. 2-v battery at the insta
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P= 53 W

<h3>What rate is energy being delivered by the battery?</h3>

Generally, the equation for the Battery power  is mathematically given as

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In conclusion, rate of energy being delivered

P= 53 W

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