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photoshop1234 [79]
3 years ago
9

Calculate the energy extracted from 50g water vapour 100 ℃ to transform it into water at 80 Celsius.

Physics
1 answer:
myrzilka [38]3 years ago
4 0

Answer:lefmprkfniou4gjkfjrnwerkjdkcheouvwe

Explanation:fefefefrgff

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A mass with a charge of 4.60 x 10-7 C rests on a frictionless surface. A compressed spring exerts a force on the mass on the lef
stira [4]

Answer:

The compression of the spring is 24.6 cm

Explanation:

magnitude of the charge on the left, q₁ = 4.6 x 10⁻⁷ C

magnitude of the charge on the right, q₂ = 7.5 x 10⁻⁷ C

distance between the two charges, r = 3 cm = 0.03 m

spring constant, k = 14 N/m

The attractive force between the two charges is calculated using Coulomb's law;

F = \frac{kq_1q_2}{r^2} \\\\F = \frac{(9\times 10^9)(4.6\times 10^{-7})(7.5\times 10^{-7})}{(0.03)^2} \\\\F= 3.45 \ N

The extension of the spring is calculated as follows;

F = kx

x = F/k

x = 3.45 / 14

x = 0.246 m

x = 24.6 cm

The compression of the spring is 24.6 cm

4 0
3 years ago
When a substance is poured from one container to another, its shape changes but its volume does not, what state of matter is the
lianna [129]

Answer: When a liquid substance is poured into a vessel, it takes the shape of the vessel, and, as long as the substance stays in the liquid state, it will remain inside the vessel. Furthermore, when a liquid is poured from one vessel to another, it retains its volume (as long as there is no vaporization or change in temperature) but not its shape.

Explanation: A solid has a definite shape and volume. A liquid has a definite volume, but takes the shape of its container. A gas lacks either a defined shape or volume. Plasma is similar to a gas in that its particles are very far apart, but a gas is electrically neutral and plasma has a charge.

8 0
3 years ago
The amount of force we need to move an object is proportional to the amount of work done - the __________ force used, the more w
Vanyuwa [196]

Answer:

stronger.

pls follow me.

7 0
3 years ago
Which planet has a rocky mantle, iron core and very dense atmosphere that is 96.5% poisonous carbon dioxide and 3.5% nitrogen?
pochemuha
"Venus" has all that characteristics. It has <span>a rocky mantle, iron core and very dense atmosphere that is 96.5% poisonous carbon dioxide and 3.5% nitrogen

In short, Your Answer would be "Venus"

Hope this helps!</span>
3 0
3 years ago
Read 2 more answers
Please help me, thank you
Mnenie [13.5K]

Answer:

a

Explanation:

7 0
3 years ago
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