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loris [4]
3 years ago
8

Help help help help help​

Physics
1 answer:
Snezhnost [94]3 years ago
4 0

Answer:

3

Explanation:

i don't know I'm just trying to finish the step things on this

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Calculate the energy absorbed when 13 kg of liquid water raises from 18°C to 100°C and then boils at 100°C.
Cloud [144]

Answer:

the energy absorbed is 4.477 x 10⁶ J

Explanation:

mass of the liquid, m = 13 kg

initial temperature of the liquid, t₁ = 18 ⁰C

final temperature of the liquid, t₂ = 100 ⁰C

specific heat capacity of water, c = 4,200 J/kg⁰C

The energy absorbed is calculated as;

H = mcΔt

H = mc(t₂ - t₁)

H = 13 x 4,200(100 - 18)

H = 4.477 x 10⁶ J

Therefore, the energy absorbed is 4.477 x 10⁶ J

5 0
3 years ago
PLEASE HELP ASAP 98 POINTS!!!!!!! ALL I NEED YOU GUYS TO DO IS WRITE A ONE PARAGRAPH REFLECTION ON ECLIPSES AND WRITE IT AS IF Y
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A eclipse starts when one object in space is blocking an observer. Most commonly known as the moon blocking the sun. For us having a visual on eclipses we normally have two eclipses. We have the solar eclipse and the lunar eclipse. These are both very important on the timing and the cycles of the moon. A solar eclipse happens when the moon moves in front of the sun. This will cause a shadow to fall on only a few certain places on earth. Then a lunar eclipse is when the Sun, moon, and earth are perfectly aligned. With the earth being the middle the Sun casts its rays and causes a huge shadow on the moon.

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6 0
3 years ago
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Explain why the poles are colder than the tropics.?
iren2701 [21]
The poles don’t receive direct sunlight which is why they are colder than the tropics. Even during the summer the sun is low on the horizon.
6 0
3 years ago
Imagine you are digging a hole to the center of the earth. In which order would dig through them?
Inessa [10]
B you wold go from the crust all the way to the inner core
6 0
3 years ago
If the potential due to a point charge is 5.05 ✕ 102 V at a distance of 15.7 m, what are the sign and magnitude of the charge? (
aleksklad [387]

Answer:

The magnitude of charge is 8.809\times 10^{-7}\ C with a positive charge.

Explanation:

Given that,

The potential due to a point charge, V=5.05\times 10^2\ V

Distance, d = 15.7 m

The potential due to a point charge is given by :

V=\dfrac{kq}{d}

q is charge

k is electrostatic constant

q=\dfrac{Vd}{k}\\\\q=\dfrac{5.05\times 10^2\times 15.7}{9\times 10^9}\\\\q=8.809\times 10^{-7}\ C  

Here, the potential is positive, then the magnitude of charge is 8.809\times 10^{-7}\ C with a positive charge.

5 0
3 years ago
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