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Tomtit [17]
3 years ago
12

All changes in the state of matter of a substance requires a change in

Physics
2 answers:
ohaa [14]3 years ago
6 0

Answer:

enegy

Explanation:

most comonly heat

ipn [44]3 years ago
6 0
Energy and heat but mostly heat
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A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance. A man pushes a
skelet666 [1.2K]

Answer:

B.) a wheel and axle and a lever

Explanation:

P.S - The exact question is -

Given - A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance. A man pushes a wheelbarrow.

To find - Which simple machines make up a wheelbarrow?

A.) a pulley and an inclined plane

B.) a wheel and axle and a lever

C.) a pulley and a wheel and axle

D.) a lever and a wedge

Proof -

The correct option is - B.) a wheel and axle and a lever

Wheelbarrows are used to carry more goods from place to place by using minimal force as compared when goods are carried by hand.

With this machine, During hauling people can save time.

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3 years ago
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Sonbull [250]

Answer:

1.Stronger bones 2.Joint flexibility

3 0
2 years ago
I need help
Gala2k [10]

The energy of the wave will decrease.

The energy of a wave is given as

E = h f

where E = energy of waver

h = plank's constant

f = frequency of the wave.

From the formula , we see that the energy of the wave is directly proportional to the frequency of the wave. hence as the frequency of the wave decrease, the energy of the wave will decrease.

8 0
3 years ago
What name is given to the system that distributes electricity from power stations around the UK?
steposvetlana [31]

Answer:

The National Grid is the system operator of Great Britain's electricity and gas supply. This includes England, Scotland and Wales. It is the company that manages the network and distribution of electricity and gas that powers all our homes and businesses.

Explanation:

5 0
2 years ago
The unit of energy is derived unit. ( give reasons) ​
m_a_m_a [10]

Answer:

Because it is made by two different unit force (F) and displacement(s)

3 0
3 years ago
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