Ask question

Ask question

All categories

2 years ago

11

A mover brings a box up the stairs in 10 seconds. If he applied a force of 20 N over a distance 10 m on the box, calculate the p

ower required for him to complete this action.
0.05 watts
201 watts
2,000 watts
20 watts

1 answer:

Softa [21]2 years ago

8 0

Answer:

20 Watts

Explanation:

Work = force × distance

W = (20 N) (10 m)

W = 200 Joules

Power = work / time

P = 200 J / 10 s

P = 20 Watts

You might be interested in

An electron is released from rest at a distance of 0.300 m from a large insulating sheet of charge that has uniform surface char

jarptica [38.1K]

Yes that is the correct answer

8 0

2 years ago

1. °C= (°F-32) X 5/9. what will be the answer?

aleksley [76]

Answer:

F=9/5(°C)+32

Explanation:

Lets take an example

Take 25°C

$\\ \sf\longmapsto \dfrac{9}{5}(25)+32$

$\\ \sf\longmapsto 9(5)+32$

$\\ \sf\longmapsto 45+32$

$\\ \sf\longmapsto 77°F$

3 0

2 years ago

What trends were seen in Mendeleev’s periodic table?

katrin [286]

He arranged his periodic table by each elements atomic mass

3 0

2 years ago

Read 2 more answers

Why was the idea of plate tectonics difficult for many scientists to accept for many years after it was first introduced?

pentagon [3]

I think the correct answer from the choices listed above is the second option. The <span> idea of plate tectonics was difficult for many scientists to accept for many years after it was first introduced because there </span><span>was no explanation yet for how it was happening. It was only to the recent times that these were proven. </span>

3 0

3 years ago

How long will it take, in minutes, for a transformer to transfer 2.3 X 10^6 J of energy from a 120-V circuit to a 345-V circuit

masya89 [10]

Answer:

e

Explanation:

3 0

2 years ago