1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
FromTheMoon [43]
3 years ago
9

what is the transfer of heat energy by direct contact. A . convection b. radiation c. thermal or heat and d. conduction ​

Physics
2 answers:
pantera1 [17]3 years ago
8 0

Answer:

d. conduction ​

Explanation:

<u>Conduction</u> is the transfer of energy from one molecule to another by direct contact.

katrin2010 [14]3 years ago
6 0

Answer:

d. conduction ​

Explanation:

Conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction while when it relates to thermal energy, it is known as heat conduction.

In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles. Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.

Any material or object that allow the conduction (transfer) of electric charge or thermal energy is generally referred to as a conductor. Conductors include metal, steel, aluminum, copper, frying pan, pot, spoon etc.

In conclusion, conduction typically involves the transfer of heat energy by direct contact between two or more conductors such as a pot and electric cooker.

You might be interested in
A fin whale is swimming at the speed of 35 km/h how many hours will it take to swim 7 km
Aleks04 [339]

Answer:

0.2 hours

Explanation:

\frac{7}{35}  = 0.2

7 0
2 years ago
If the resistance in a circuit remains constant, what happens to the electric power when the current increases?
Elena L [17]
V=IR (voltage equals current<span> times </span>resistance<span>). So </span>if<span> the voltage </span>increases<span>, then the </span>current increases<span> provided that the </span>resistance remains constant<span>.</span>
4 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST
Vaselesa [24]
<h2><u>Answer:</u></h2><h2>A. Displacement</h2><h2>B. Time</h2><h2 /><h2>Your Welcome ❤</h2>
3 0
3 years ago
Read 2 more answers
A machine is rolling a metal cylinder under pressure. The radius of the cylinder is decreasing at a constant rate of 0.05 inches
Luden [163]
Yes, the volume of the cylinder will remain constant. As the radius decreases, the height will increase to make sure that the volume is kept the same.
We have been given a value of dr/dt and are required to find dh/dt
Because the volume is constant, we can plug it into the formula for the volume of the cylinder and rearrange it to make h the subject:
128 = πr²h
h = 128/πr²
Now we differentiate both sides:
dh/dr = -256/πr³
Applying the chain rule:
dh/dt = dh/dr x dr/dt
dh/dt = (-256/πr³) x -0.05
dh/dt = 64/5πr³; substituting the value of r
dh/dt = 64/5π(1.5)³
dh/dt = 1.21 in/sec
4 0
3 years ago
Two objects, A and B, are in contact with one another. Initially, the temperature of A is 50 °C and the temperature of B is 100
V125BC [204]

Answer:

B

Explanation:

because kinetic energy is directly proportional to temperature so the hottor the object, the more kinetic energy.

6 0
3 years ago
Other questions:
  • Calculate the force at sea level that a boy of mass 50 kg exerts on a chair in which he is sitting
    9·1 answer
  • A student constructed a series circuit consisting of a 12.0-volt battery, a 10.0-ohm lamp, and a
    14·1 answer
  • How long does it usually take a hypothesis to become a theory
    7·2 answers
  • Given the mechanism of C5M action, what is the most likely reason that C5M concentrations greater than 2 µM were NOT used by the
    15·1 answer
  • What is a sharp ridge separating two cirques
    12·1 answer
  • Which three elements have strong magnetic properties?
    7·2 answers
  • An aquarium open at the top has 30-cm-deep water in it. You shine a laser pointer into the top opening so it is incident on the
    13·2 answers
  • Which term describes the object that a satellite revolves around?
    10·2 answers
  • 3. A man hits a 0.2 kg golf ball with a force of 4
    13·1 answer
  • Using a dish-shaped mirror, a solar cooker concentrates the sun's energy onto a pot for cooking. A cooker with a 1.2-m-diameter
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!