How much work is done by 15 kW engine during 3.5 min? Explain the answer if you can plz

W = 3.15 · 10⁶ J  

Explanation:

We know that power is calculated using the formula:

P = W/twhere P = power (W), W = work (J), and t = time (s)  

We can derive a formula for work using this formula by multiplying t to both sides of the equation.

W = Pt

Let's convert 15 kW to W.

15 kW → 15,000 W

Let's convert 3.5 min to s.

3.5 min → 210 s

Substitute these values into the formula for work and solve for W.

W = Pt W = (15,000 W) · (210 s) W = 3,150,000 J  W = 3.15 · 10⁶ J  

This is the amount of work done by a 15 kW engine in 3.5 minutes.

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

Sorry my friend i don't know the answer. i am just in 6th