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Mandarinka [93]
2 years ago
6

PLEASE HELP ME WITH THIS ONE QUESTION

Physics
1 answer:
Kitty [74]2 years ago
6 0

Answer:

Q = 282,000 J

Explanation:

Given that,

The mass of liquid water, m = 125 g

Temperature, T = 100°C

The latent heat of vaporization, Hv = 2258 J/g.

We need to find the amount of heat needed to vaporize 125 g of liquid water. We can find it as follows :

Q=mH_v\\\\Q=125\ g\times 2285\ J/g\\\\Q=282250\ J

or

Q = 282,000 J

So, the required heat is 282,000 J .

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You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 2.1 m/s. The
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Answer:

4.6 Joules

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2 years ago
How to change V=72km/hr to m/s
lapo4ka [179]
Multiply by (1000 meters / 1 km).
Then multiply by (1 hour / 3600 seconds).

Both of those fractions are equal to ' 1 ', because the top
and bottom numbers are equal, so the multiplications
won't change the VALUE of the 72 km/hr.  They'll only
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7 0
3 years ago
What is the only planet where a day lasts longer than a year?
Ksivusya [100]

Answer:

Venus

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The free-body diagram of a crate is shown. A free body diagram with 4 force vectors. The first vector is pointing downward, labe
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The net force acting on the crate is determined as 176 N to the left.

<h3>Net force acting on the crate</h3>

The net force acting on the crate is calculated as follows;

∑F = F1 + F2 + F3 + F4

F(net) = -440y + 176x + 440y - 352x

F(net) = -176 x

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Learn more about net force here: brainly.com/question/14361879

#SPJ1

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