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zubka84 [21]
4 years ago
9

What song is this?

Engineering
2 answers:
Fiesta28 [93]4 years ago
5 0

Answer:

heather by conan gray??

Explanation:

koban [17]4 years ago
3 0

Answer:

heather by conan gray

Explanation:

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How to tie shoe please
Genrish500 [490]
Step 1: Unknot Shoelaces. Make sure that the two ends of the shoelace are completely untangled and free of knots past the tongue. ...
Step 2: Create Overhand Knot. ...
Step 3: Finish the Basic Shoe Knot. ...
Step 4: Create Double Knot. ...
Step 5: Finished!
4 0
2 years ago
A Carnot refrigeration cycle absorbs heat at -12 °C and rejects it at 40 °C. a)-Calculate the coefficient of performance of this
tresset_1 [31]

Answer:

a)COP=5.01

b)W_{in}=2.998 KW

c)COP=6.01

d)Q_R=17.99 KW

Explanation:

Given

T_L= -12°C,T_H=40°C

For refrigeration

  We know that Carnot cycle is an ideal cycle that have all reversible process.

So COP of refrigeration is given as follows

COP=\dfrac{T_L}{T_H-T_L}  ,T in Kelvin.

COP=\dfrac{261}{313-261}

a)COP=5.01

Given that refrigeration effect= 15 KW

We know that  COP=\dfrac{RE}{W_{in}}

RE is the refrigeration effect

So

5.01=\dfrac{15}{W_{in}}

b)W_{in}=2.998 KW

For heat pump

So COP of heat pump is given as follows

COP=\dfrac{T_h}{T_H-T_L}  ,T in Kelvin.

COP=\dfrac{313}{313-261}

c)COP=6.01

In heat pump

Heat rejection at high temperature=heat absorb at  low temperature+work in put

Q_R=Q_A+W_{in}

Given that Q_A=15KW

We know that  COP=\dfrac{Q_R}{W_{in}}

COP=\dfrac{Q_R}{Q_R-Q_A}

6.01=\dfrac{Q_R}{Q_R-15}

d)Q_R=17.99 KW

5 0
3 years ago
On some late model cars, climate control systems wil create trouble codes for trouble shooting purposes.
Advocard [28]
I think it’s true because I mean that where you have air conditioner and stuff but as though it’s probably not codes but in a car there probably will be codes
8 0
3 years ago
A force of 250 N is acting on an area of 2 m2. The pressure is therefore:
lianna [129]

Answer:

125 Pascal

Explanation:

We know that

Pressure=\frac{Force}{Area}

Applying given values we get

Pressure=\frac{250N}{2m^{2}}

Pressure=125\frac{N}{m^{2}}

Pressure = 125 Pascal

7 0
3 years ago
26 V is measured across a 220 Ω resistance. This means that resistor current equals ________. Group of answer choices 1.2 A 57 A
zysi [14]
You can use ohm’s law
I=V/R
3 0
3 years ago
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