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docker41 [41]
3 years ago
8

the hot gas lines need to be insulated? A never B always C if they are exposed to cold temperatures that could cause the refrige

rant to condense in the line D for systems using hfc refrigerants
Physics
1 answer:
muminat3 years ago
8 0
The answer is a because it never needs to be insulated
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MrMuchimi

Answer:

potential energy

Explanation:

8 0
3 years ago
. When two speakers play different sounds with a constant frequency, beats are heard with a frequency of 5 Hz. If the frequency
morpeh [17]

The beat frequency is the concept required to develop this process. The phenomenon is generated when you have two waves but their frequencies do not differ greatly. So the beat frequency will be the difference between those two waves. For this case we have the difference and one of the waves, therefore,

F_b = |F_1-F_2|

Our values are given as,

F_b = 5Hz

F_1 = 1050Hz

Using the formula of the frequency I will have,

F_b = |F_1-F_2|

Replacing we have,

5 = |1050-F_2|

F_2 = 1050 \pm 5

F_2 = 1045,1055 Hz

The possible values are two: 1045Hz and 1055Hz

3 0
3 years ago
Your car has a mass of 1,250 kg. If a force of 8,750 N is applied, how fast will it accelerate?​
Drupady [299]

Answer:

7 m/s^{2}

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8 0
3 years ago
Can work ever be negative?
Rom4ik [11]

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B yes when displacement is negative

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marysya [2.9K]
Upper fixed point is a temperature of stem from water boiling and standards atmospheric pressure

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