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VMariaS [17]
3 years ago
9

Substances A-D have the following specific heats (J/(kg*K)): Substance A: 900; Substance B: 170; Substance C: 270; Substance D:

4,180. Which substance would be the best for transferring heat in a heating or cooling system? A. Substance A B. Substance B C. Substance C D. Substance D **not sure! thank you:)
Physics
1 answer:
FromTheMoon [43]3 years ago
3 0
Substance B. Because the lower the specific heat capacity, the faster the heat is transferred.
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list all the storage forms of energy that forms of energy that you are familiar with. for each storage form, give an example of
ella [17]

Storage form of energy:

  • Potential energy
  • Nuclear energy
  • electrical energy
  • thermal energy
  • magnetic energy

Potential energy:

All stationary objects are having potential energy stored in it. This energy can be transferred in form of kinetic energy when it comes in the motion from rest. Example, An object placed at height h having potential energy in it. When it comes in motion from the rest the potential energy is converted into kinetic energy.

Nuclear energy:

Nuclear energy is energy that is stored in nucleus of any element. Example, fusion reaction on sun gives earth solar energy.

Electric energy:

Electrical energy is due to movement of the electrical charges. Example, In elctrical batteries electrical energy is stored.

Thermal energy:

Thermal energy is the internal energy of a substance that is transferred to other substance in the form of heat. Example, on heating water is a beaker stem energy is developed.

Magnetic energy:

Magnetic energy is the potential energy stored in the magnetic field. Example, using magnetic energy electric field is produced according to Faraday's law.


8 0
3 years ago
Why we have leap year?
Marina CMI [18]

Answer:February 29 is a date that usually occurs every four years, and is called leap day. This day is added to the calendar in leap years as a corrective measure, because the Earth does not orbit the sun in precisely 365 days.

Explanation: brainlest plz

8 0
3 years ago
A light shines up from the bottom of a fish pond.
likoan [24]
<span>For the question "A light shines up from the bottom of a fish pond. Which diagram shows the correct path of light as it leaves the water of the pond and hits the air?" The second diagram is the correct answer. Water has a higher refractive index than air so the ray of light passing from water to air will be refracted away from the normal (the vertical) towards the surface of the water.</span>
7 0
3 years ago
A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two d
Reptile [31]
Formula:
F = ma
F: force (N) m: mass (kg) a: acceleration (m/s^2)

Solution:
F = ma
F = 1200 × 1.89
= 2268N
5 0
3 years ago
Which of the following is an example of an anaerobic exercise?
Nataly [62]
Sitting. Because its no move at all
7 0
3 years ago
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