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poizon [28]
3 years ago
7

When an object absorbs heat, it results to increase in object’s internal energy. This increase will make kinetic energy to incre

ase, therefore the temperature will also increase. Molecules move faster and faster causing the object to expand (also known as thermal expansion)How is this concept applied in loosely hung electric transmission cable wire?
a. There is more than enough budget for the cable wires
b. Tightly hung electric cable wires may snap or break due to exposure to heat
c. It is designed as provision for many users
d. It is what the law requires​​
Physics
1 answer:
andrew-mc [135]3 years ago
4 0
I think the answer is d it is what the law requires
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weqwewe [10]
The answer is A. <span>Some work input is used to overcome friction. </span>
6 0
3 years ago
Three cars collide, a 1500 kg sports car, a 1750 kg family car, and a 1200 kg compact car. Which experiences the greatest change
sweet [91]

Answer:

d

Explanation:

This is because momentum is defined as p = mv

delta p = Force *time

neither velocity nor time is given so a conclusion cannot be made on which has the greatest momentum change.

5 0
2 years ago
6X-6=9<br><br> Solve for X<br><br> Round to TWO decimal places
Brums [2.3K]

Answer:

X=2.50

Explanation:

6x-6=9

6x= 9+6

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8 0
3 years ago
Two boxes are at rest on a smooth, horizontal surface. The boxes are in contact with one another. If box 1 is pushed with a forc
Maslowich

Answer:

mass of box 1 = 2.20 kg

mass of box 2 = 5.93 kg

Explanation:

Let the mass of box 1 and box 2 is respectively

m_1 and m_2

so we will have

Force applied on box 1 then acceleration

a = \frac{F}{m_1 + m_2}

1.50 = \frac{12.2}{m_1 + m_2}

m_1 + m_2 = 8.13

Now we know that contact force between them in above case is given as

F_n = m_2a

8.90 = m_2(1.5)

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now we have

m_1 = 2.20 kg

8 0
3 years ago
What if the height is 85m, then how long long does it stay in the air?
wolverine [178]

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