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tekilochka [14]
2 years ago
6

if a student lifts their weight of 450 newtons up a set of stairs 5 meters high, how much work did they do?

Physics
2 answers:
Gnoma [55]2 years ago
8 0

Answer:

work done = 2250 j

Explanation:

work done = force × displacement

=》

w.d. = 450 \times 5

=》work done = 2250 joules

irina1246 [14]2 years ago
4 0

Answer:

2,250J

Explanation:

W = Fs = (450)(5) = 2,250

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Explanation:

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3 years ago
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A cup of water is warmed from 21 °C to 85 °C. What is the difference between these two temperatures, in kelvins?
Ilya [14]

Answer:

337k

Explanation:

First, let us find the difference between the given two temperatures.

Difference = 85°C - 21°C

                  = 64°C

<u>And now we have to write the temperature in kelvins.</u>

To convert Celcius to Kelvins you can add 273 to the temperature in Celcius.

<u>Let us find it now.</u>

64°C + 273 = 337k

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8 0
1 year ago
A cubical wooden box floating on water rises 1cm when 400 gm of stone is
Ksivusya [100]

Answer:

Explanation:

I'm not  sure you can do this without just a bit more information. I can tell you what the mass of the water is when the rocks are removed. When we know that, we know the volume of the water that was displaced. whether or not this is enough information to determine the volume of the box, I'm not sure.

400 grams raises the box 1 cm.

The density of water = 1 gm / cm^3

400 grams of water = 400 mL or 400 cm^3

The volume of the displaced water = 400 cm^3

The volume a slice from the square prism is B*h

B = 400 cm^2

h = 1 cm

If the base is 400 cm^2 then each side is

s^2 = 400

sqrt(s^2)= sqrt(400)

s = 20

The volume of the box is 20^3 = 8000 cm^3

5 0
2 years ago
If 100 grams of vinegar and 5 grams of baking soda are poured in a container, a small amount of gas will be produced. What will
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It will be a little bit less because of evaporation i learned that in third grade and your in high school that is sad
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3 years ago
What is the weight of an object with a mass of 6.0 kg on Earth?
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  • 6 x 9.807
  • = 58.842 N

hope that helps :))

3 0
2 years ago
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