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Pachacha [2.7K]
4 years ago
12

What are two ways a machine converts energy?

Chemistry
1 answer:
nadezda [96]4 years ago
8 0
Chemical energy in the coal is converted into thermal energy in the exhaust gases of combustion

thermal energy of the exhaust gas is converted into thermal energy of steam through heat exchange
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Please answer each thank you
liubo4ka [24]

Answer:

Properties of Metals:      

- Shiny

-Malleable

-Good Conductors of electric current

- Good conductors of heat

Properties of Non-metals:

- Dull

- Not Malleable

- Bad conductors of electric current but good electric insulators

- Poor conductors of heat

Note: The first dash for the Properties of metals goes with the first dash of Properties of Non-metals and so on.

3 0
4 years ago
7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long
Hunter-Best [27]

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

a=\frac{v-u}{t}

thus,

t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds

4 0
3 years ago
Which has a lower freezing point oxygen or ethonal​
notka56 [123]

Answer:

Ethanol

Explanation:

7 0
3 years ago
Which statement Ilustrates the difference between a chemical reaction and a nuclear reaction?
pishuonlain [190]

Answer:

A nuclear reaction releases more energy per gram and appears to violate the law of conservation of mass.

Explanation:

  • In nuclear reactions there arises a shift in the nucleus of the atom. This results in the production of a different element altogether. While in chemical reactions the electrons are rearrangement and there is no change in the nucleus.
  • Factors like temperature, pressure, and catalysts do not affect the rate of nuclear reactions while they influence the chemical reactions.
  • The change in the energy is higher in nuclear reactions. It arises out of the destruction of mass.
8 0
3 years ago
Coal,oil,and natural gas are examples of earths _______<br><br> Fill out the blank
Aleks04 [339]
Non renewable resources
6 0
3 years ago
Read 2 more answers
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