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Talja [164]
3 years ago
15

Energy transfer by convection is usually restricted to what type of substance?

Physics
2 answers:
dedylja [7]3 years ago
5 0

<u>Answer:</u> The correct answer is fluids.

<u>Explanation:</u>

There are 3 modes of heat transfer that happens:

1. <u>Conduction:</u> In this type of heat transfer, heat is transferred when there is direct contact between the two object.

2. <u>Convection:</u> In this type of heat transfer, heat is transferred when there is a movement of fluid (liquid or gas).

3. <u>Radiation:</u> In this type of heat transfer, heat is transferred when there is direct transfer of energy through space.

Hence, convection is only restricted to fluids which are liquids and gases.

just olya [345]3 years ago
3 0

the anwser is d) fluids

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pav-90 [236]

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the correct answer is b: 25

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2 years ago
17. (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air ( 3.0×106
sleet_krkn [62]

Answer:

Explanation:

Distance between plates d = 2 x 10⁻³m

Potential diff applied = 5 x 10³ V

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= 2.5 x 10⁶ V/m

This is less than  breakdown strength for air  3.0×10⁶ V/m

b ) Let the plates be at a separation of d .so

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5 0
3 years ago
How do you find the capacitance in this?
Lostsunrise [7]

Answer:

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3 0
2 years ago
microwave ovens rotate at a rate of about 6.3 rev/min. what is this in revolutions per second? (you do not need to enter any uni
levacccp [35]

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The microwave rotation is the number of revolutions in a unit of time. To change the unit for angular velocity, assume that the quantity is multiplied by the unit it has. Then change to the desired units. The angular velocity is denoted by ω and has a magnitude of 6.3 rev/min.

ω = 6.3 rev/min

\omega = 6.3 \times \frac{1 \: rev}{1 \: min}

  • 1 minute = 60 seconds
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\omega = 6.3 \times \frac{1 \: rev}{60 \: seconds}

\omega = \frac{6.3 \: rev}{60 \: seconds}

ω = 0.105 rev/s

Learn more about Angular velocity here: brainly.com/question/29344944

#SPJ4

7 0
1 year ago
Which of the following is a noncontact force? A. electrical forces B. gravitational forces C. magnetic forces D. all of these
goblinko [34]
D. all of these

hope this helps.
6 0
3 years ago
Read 2 more answers
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