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3 years ago

A 4400 W motor is used to do work. If the motor is used for 200 s, how much work could it do? (Power: P = W/t)

Physics

2 answers:

Inga [223]3 years ago

7 0

Hope this helps, have a great day ahead!

olasank [31]3 years ago

3 0

We know, P = w / t
4400 = w / 200
w = 4400 * 200
w = 880000 J

Hope this helps!

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Dima020 [189]

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3 years ago

1. A Zambeef delivery track travels 18 km north, 10 km east, and 16 km south. What is its final displacement from the origin?

Amiraneli [1.4K]

Answer:

10.2 km

Explanation:

Displacement is the shortest distance from your original position after movement.

Now, the Zambeef delivery truck moves 18 km north and then 10 km east and then 16 km south.

This means that vertically the truck is 2km short of the 18 km he travelled north..

So we can find the displacement using pythagoras theorem..

Let d be the distance from the current position to the initial position.

Thus;

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I have attached a diagram showing the direction of this displacement

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3 years ago

A moon with a mass of 6.0 x 10 kg orbits about a planet with a mass of 5.0x 10^24 kg. They are 4.0 x 10^8 meters apart What is t

allochka39001 [22]

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4 years ago

A 0.15-kg apple falls off a tree branch that is 2.8 m above the thick grass. The apple sinks 0.066 m into the grass while stoppi

Soloha48 [4]

Answer:

F = 62.4 N

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Let's look for the speed of arrival to the grass, write the energy in two points

Initial

Em₀ = U = m g h

Point 2, just by touching the grass

Em₂ = K = ½ m v²

Em₀ = Em₂

m g h = ½ m v²

v = √ 2gh

v = √( 2 9.8 2.8)

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Let's calculate the momentum until it stops

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Now let's look for the time to stop with this acceleration

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4 years ago