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d1i1m1o1n [39]
3 years ago
10

The air going into the tyre was warmed up by the pumping. What effect will this have on the motion of Gad molecules in the air i

n the tyre?
Physics
1 answer:
Novosadov [1.4K]3 years ago
4 0

Answer:

they are constantly bouncing everywhere and creating preasure

Explanation:

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What happens to the average kinetic energy of water molecules as water freezes? It decreases as the water absorbs energy from it
Morgarella [4.7K]

Answer:the average kinetic energy is directly proportional to the temperature . When water freezes, the temperature decreases and therefore, the average kinetic energy will also decreases as well.

Explanation:

8 0
3 years ago
the density of a steel is 7.8.find the mass of steel cube of side 10 cm. find volume of steel if the mass is 8kg​
lukranit [14]

Answer:

Mass of the steel cube =  7800 kg

Volume of the steel  = 1.025 cubic centimetre

Explanation:

Given:

The density of the steel   =  7.8

Side of the cube = 12 cm

<u>(1)The mass of steel cube :</u>

We know that,

Density  = \frac{Mass}{Volume}

We are given with density and sides of the cube

then volume of the cube

= (side)^3

= 10^3

= 1000 cubic centimetre

Now

7.8 = \frac{mass}{1000}

mass = 7.8 \times 1000

mass =  7800 kg

<u>(2)volume of steel:</u>

Given the mass  = 8 kg

Density  = \frac{Mass}{Volume}

Substituting the values

7.8 = \frac{8}{volume}

volume = \frac{8}{7.8}

volume = 1.025 cubic centimetre

3 0
3 years ago
A ____________ is a machine which contains a lever and a wedge that combine to make work easier.
Katarina [22]

Answer: Simple machine

  • The movable inclined plane is called wedge.
  • A simple machine is a machine, which contains lever and wedge, is used to push the things apart.  
  • The mechanical advantage of a wedge is given by the ratio of length of its slope to its width.
3 0
3 years ago
Why are renewable sources of energy better than nonrenewable sources?
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Because it does not produce waste, thus it doesn't harm the environment. also renewable sources are infinite.
5 0
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I need help with this question ASAP I am on a timer
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