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creativ13 [48]
3 years ago
7

Which of the following us a surface phenomenon​

Physics
1 answer:
katrin [286]3 years ago
3 0

Answer:

Evaporation

Explanation:

Evaporation is a surface phenomenon as the molecules of the surface gets sufficient energy to overcome the force of attraction which will help in converting to the vapor phase.

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A 4810 kg demolition ball swings at the end of a 12.3 m cable on the arc of a vertical circle. At the lowest point of the swing,
faust18 [17]

The tension in the cable supporting the swing of the ball in the given vertical circle is 47,577.4 N.

<h3>Tension in the cable</h3>

The tension in the cable supporting the swing of the ball is calculated as follows;

T = mg + mac

T = mg + m(v²)/r

T = (4810 x 9.8) + (4810 x 1.06²)/12.3

T = 47,577.4 N

Thus, the tension in the cable supporting the swing of the ball in the given vertical circle is 47,577.4 N.

Learn more about tension here: brainly.com/question/918617

#SPJ1

4 0
2 years ago
what is the cost to run a single 100 w light bulb for 30 days if the electric company charges $0.18 for every KW-hr?​
xxTIMURxx [149]

Explanation:

power of the bulb = 100w=0.1kw

power consumption when the bulb is used for 30 days ( 30 *24 = 720 hours) =0.1*720=72kwh

cost to run the bulb for 30 days = 72*0.18

= $12.96

Answer is $12.96..................

8 0
3 years ago
A sample of an ideal gas at Pi is initially confined to one chamber of the apparatus represented above, and the other chamber is
stiv31 [10]

If the gas is ideal, the internal energy depends only on the temperature. Therefore, when an ideal gas expands freely, its temperature does not change.

When the valve of the chamber opens, the ideal gas expands and since, it is free to move its entropy increases. Entropy is a measure of uncertainty or randomness. Thus, ΔS becomes positive.

7 0
3 years ago
What are your thoughts about Russia getting banned from the 2020 Olympics and 2022 World cup?
irina1246 [14]
It might be a good thing if they did something wrong
4 0
3 years ago
A 3.0\, \text {kg}3.0kg3, point, 0, start text, k, g, end text box is at rest on a table. The static friction coefficient \mu_sμ
Kipish [7]

Answer:

its 0 m/s^2 on khan

Explanation:

usually how i think of it if its below 15 N then its 0

3 0
3 years ago
Read 2 more answers
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