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
vichka [17]
3 years ago
9

How is thermal energy transferred during convection? by physical contact by electromagnetic waves by movement in fluids by mecha

nical waves
Physics
2 answers:
Alla [95]3 years ago
7 0

by movement in fluids

iris [78.8K]3 years ago
4 0

Answer: by movement in fluids

Explanation:

There are three modes of transfer of thermal energy.

Conduction, convection and radiation.

Transfer of thermal energy via <u>conduction</u> takes place from hotter object and to colder object when they are contact.

Transfer of thermal energy via convection takes place through fluids. The bulk motion of fluids transfers energy.

<u>Radiation </u>transfers thermal energy via space.

You might be interested in
What is force of gravity​
Eduardwww [97]

Answer:

On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earth's surface the acceleration of gravity is about 9.8 metres (32 feet) per second per second.

5 0
3 years ago
Why are some forces considered to be noncontact forces? A. Objects must be far apart in order to exert a force. B. Objects do no
kompoz [17]

Answer:

B. Objects do not have to touch each other to experience a force.

Explanation:

For example ..One of the noncontact forces is magnetic force whereby a magnetic object will be attracted to another magnetic object of oppsite charged particles, through waves called electromagnetic waves. On the other hand, the two magnetic objects of similar charged particles can repel through electromagnetic waves..

8 0
3 years ago
Q1. In a 100m track event, the time taken by four runners is 10 sec., 10.2 sec., 10.4 sec and 10.6 sec. Find the ratio of their
Anna35 [415]
Distance (s)=100m
time
T₁=10
T₂=10.2
T₃=10.4
T₄=10.6
by v=\frac{s}{t}
we get
V₁=\frac{100}{10}
V₁=10m/s

V₂=\frac{100}{10.2}
V₂=9.8m/s

V₃=\frac{100}{10.4}
V₃=9.61 m/s

V₄=\frac{100}{10.6}
V₄=9.43 m/s

V₁:V₂:V₃:V₄ = 10 : 9.8 : 9.61 : 9.43
8 0
3 years ago
**URGENT** Roberto plans to use two transformers to reduce a voltage of 120 V to 4 V. He uses a transformer that has 300 coils i
skelet666 [1.2K]

As we know that in transformers we have

\frac{V_s}{V_p} = \frac{N_s}{N_p}

here we know that

V_s = 4 Volts

V_p = 120 Volts

N_s = 50 coils

N_p = 300 coils

now from above equation we will have

\frac{V}{120} = \frac{50}{300}

V = 20 Volts

now we have to reduce this voltage to final voltage of V = 4 V

so again we will have

\frac{V_s}{V_p} = \frac{N_s}{N_p}

\frac{4}{20} = \frac{N_s}{N_p}

\frac{N_s}{N_p} = \frac{1}{5}

so we need to take such a winding whose ratio is 1:5

So it is satisfied in X

N_p = 60

N_s = 12

so answer will be

<u>B)-   X</u>

3 0
3 years ago
Read 2 more answers
A box exerts 10,000 Pa of pressure on the ground. If the box weighs 1000 N, how much area is in contact with the ground?
lara [203]

Pressure = (total force) / (Area)

10,000 Pa = (1,000 N) / (Area)

Multiply each side by (Area) :

(10,000 Pa) x (Area) = 1,000 N

Divide each side by (10,000 Pa) :

Area = (1,000 N) / (10,000 Pa)

<em>Area = 0.1 m² </em>

4 0
3 years ago
Other questions:
  • What does it mean when the line on a graph of a distance vs. time changes direction?
    8·1 answer
  • A flow of electricity that constantly reverses direction. In the United States it reverses itself 120 times per second.
    7·1 answer
  • A violent windstorm that forms a rotating column of air called a vortex is a
    8·1 answer
  • How does the structure of mitochondrial on affect its structure
    15·1 answer
  • Is Kepler's constant the same for moons orbiting a planet as it is for planets orbiting the sun? Why?
    11·2 answers
  • What type of energy is the energy of motion?
    11·2 answers
  • Which property of sugar makes it different from white crystalline sand?
    11·1 answer
  • A metal has a strength of 414 MPa at its elastic limit and the strain at that point is 0.002. Assume the test specimen is 12.8-m
    7·1 answer
  • How old is a bone that has 12.5% of the original amount radioactive carbon 14 remaining?
    12·1 answer
  • The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!