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FrozenT [24]
3 years ago
13

According to most car mechanics, plain water is the best coolant to use in an engine provided the engine is not being exposed to

freezing temperatures. if the car is subject to freezing temperatures then a mixture of water and ethylene glycol (antifreeze) is recommended but it does not cool as efficiently as plain water. why would ethylene glycol reduce the cooling efficiency of water?
Physics
1 answer:
Gelneren [198K]3 years ago
8 0
Ethylene glycol reduces the cooling efficiency of water because it has a lower heat capacity as compared to water. A substance with low heat capacity would mean that the material only needs a small amount of energy to increase its temperature. So, for ethylene glycol, the heat transfer would be faster decreasing the cooling efficiency.
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Energy can be changed from one form to another. Which terms can be used to describe these changes? Select all that apply.
aliya0001 [1]

Energy is the capacity to do work. Energy exists in various forms in the entire universe.

It  may be light,sound,electric,magnetic,kinetic,potential,thermal energy etc.

As per the law of conservation of energy, it is neither created not destroyed. It can change from one form to another form.The total energy of the universe is always constant.

The process in which energy will change from one form to another form is called energy conversion.

There is also another terminology for energy conversion called energy transformation.

Energy transference is the process in which energy will be transferred from one body to another body.

Hence the correct answer to this question will be conversion and transformation

5 0
4 years ago
Read 2 more answers
For the circuit shown find the current in each resistor​
Crank

Answer:

dont know what that is too much static

Explanation:

8 0
4 years ago
Jail
kykrilka [37]

Answer:

c.o Kg • ms 08

Explanation:

put all together

7 0
3 years ago
Helpppppppppppp.......!
Black_prince [1.1K]

Explanation:

m = 66 kg

a = 2 m/s²

F = .....?

<h3>F = m . a</h3>

= 66 . 2

= 132 N

<h3>#CMIIW</h3>

3 0
3 years ago
A hockey puck has a coefficient of kinetic friction of μk = .35. If the puck feels a normal force (FN) of 5 N, what is the frict
alina1380 [7]

Answer:

The frictional force is  F_f =  1.75 \  N

Explanation:

From the question we are told that

     The coefficient of kinetic force is  μk = 0.35

     The normal force felt by the puck is  F_N  =  5 \  N

Generally the frictional force that acts on the puck is mathematically represented as

          F_f =  \mu_k  *  F_N

=>       F_f =  0.35  *  5

=>       F_f =  1.75 \  N

3 0
3 years ago
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