3 years ago

A

Physics

1 answer:

Arada [10]3 years ago

4 0

Answer:

i would think c

Explanation:

You might be interested in

A 20 watt light bulb is left burning inside a refrigerator operating on a reverse Carnot cycle. If the refrigerator also draws 2

Gwar [14]

Explanation:

Given that,

Power drawn by the refrigerator = 20 watt

Power of burning light inside = 20 watt

Room temperature = 27°C

We need to calculate the temperature

Using formula of coefficient of refrigerator

$COR_{R}=\dfrac{Q_{c}}{W}$

$\dfrac{Q_{c}}{W}=\dfrac{T_{c}}{T_{H}-T_{c}}$

Put the value into the formula

$\dfrac{20}{20}=\dfrac{T_{c}}{T_{H}-T_{c}}$

$\dfrac{T_{c}}{T_{H}-T_{c}}=1$

$T_{h}=2T_{c}$

$T_{c}=\dfrac{T_{h}}{2}$

$T_{c}=\dfrac{27+273}{2}$

$T_{c}=150\ K$

$T_{c}$ is less than $T_{h}$

Therefore, refrigerator cools its interior below room temperature while the bulb is on.

Hence, This is the required solution.

8 0

3 years ago

Which of the following are electromagnetic waves? sound waves water waves ground waves light waves`

Paraphin [41]

Hello! Light waves are an example of electromagnetic waves. I hope this helps!

5 0

3 years ago

What is the momentum of a volleyball with a velocity of 50 mph and a mass of .5 kg?

Romashka-Z-Leto [24]

The formula for momentum is p=mv (mass multiplied by velocity), so in this problem, p=50(.5)=25=p or in other words, momentum.

6 0

3 years ago

What is the atomic number of 24 and 12 Mg

Vikki [24]

Answer:

Chromium has 24

Magnesium has 12

Krypton has 36(Not sure if they are combine)

Explanation:

4 0

3 years ago

How many atoms of oxygen in the chemical formula 2 Ca(CIO2)2?<br> O 2<br> O 4<br> O 6<br> O 8

alexdok [17]

Answer:

I believe it's 8

Explanation:

3 0

3 years ago