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
aleksandr82 [10.1K]
3 years ago
15

Which two conditions must exist in order for radiation to occur?

Physics
2 answers:
Ostrovityanka [42]3 years ago
6 0

Answer:

D

Explanation:

Olenka [21]3 years ago
4 0

a temperature difference and the presence of electromagnetic waves

Explanation:

For radiations to occur, there must be presence of temperature difference and electromagnetic waves.

Radiation is a form of heat transfer that does not require a medium. Any hot body emits radiation from its surface.

A hot body is not at thermal equilibrium with its environment.

It has some of its electrons in excited state and by so they emit radiations.

Electromagnetic waves that vibrates transversely emits radiations. This is the mode of heat transfer in place for most electromagnetic waves

learn more:

Electromagnetic radiation brainly.com/question/6818046

#learnwithBrainly

You might be interested in
A mass-spring system oscillates with an amplitude of 4.60 cm. If the spring constant is 234 N/m and the mass is 524 g, determine
gizmo_the_mogwai [7]

Answer:

Mechanical energy, U = 0.247 Joules

Explanation:

Given that,

Spring constant of the spring, k = 234 N/m

Mass, m = 524 g = 0.524 kg

Amplitude, A = 4.6 cm = 0.046 m

To find,

The mechanical energy of the system.

Solution,

We know that the sum of kinetic energy and the potential energy is equal to its mechanical energy. In mass-spring system, it is given by :

U=\dfrac{1}{2}kA^2

U=\dfrac{1}{2}\times 234\times (0.046)^2

U = 0.247 Joules

So, the mechanical energy of the system is 0.247 Joules.

4 0
3 years ago
One light-hour is the distance that light travels in an hour. How far is this, in kilometers? (Recall that the speed of light is
ycow [4]

Answer:

B 1.08 BILLION

Explanation:

SEE ATTACHMENT

Download pdf
6 0
3 years ago
Which type of galaxy is too small for gravity to form it into an easily describable shape?
oksano4ka [1.4K]
If you think about it, irregular galaxies dont really have a describable shape, as you can tell by the name. So B. 
6 0
3 years ago
Read 2 more answers
A bowling ball of mass 5.8 kg moves in a
evablogger [386]

Answer:

Velocity of the ping pong ball must be = V2= 6,035.34m/s

Explanation:

M1= momentum of the bowling ball

m1 = mass of the bowling ball= 5.8kg

v1= velocity of the bowling ball= 1.59m/s

M2= momentum of the ping pong ball

m2= mass of the ping pong ball= 1.528 g/1000=  0.001528kg

v2= velocity of the ping pong ball

Momentum of the bowling ball= M1= m1v1= 5.8* 1.59= 9.222 kg-m/s

Momentum of the ping pong ball = M2= M1= m2v2

= 0.001528 *v2= 9.222

v2= 9.222/0.001528= 6,035.34 m/s

7 0
3 years ago
A sound wave travels through water. What best describes the direction of the water particles?
balu736 [363]

Answer:

In water, the particles are much closer together, and they can quickly transmit vibration energy from one particle to the next.

A water wave is an example of a transverse wave. As water particles move up and down, the water wave itself appears to move to the right or left.

7 0
3 years ago
Other questions:
  • College students receive an average of four phone calls
    6·1 answer
  • What is the velocity of all electromagnetic waves in a vacuum?
    14·1 answer
  • A plane, diving with constant speed at an angle of 53.0° with the vertical, releases a projectile at an altitude of730 m. The pr
    9·1 answer
  • An arrow, starting from rest, leaves the bow with a speed of25
    9·1 answer
  • After inspecting all of 55,000 kg of meat stored at the Wurst Sausage Company, it was found that 45,000 kg of the meat was spoil
    10·1 answer
  • A small toy cart equipped with a spring bumper rolls toward a wall with a speed of v . The cart rebounds from the wall, with the
    9·1 answer
  • Once the crate in sample problem 4C is in motion, a horizontal force of 53 N keeps the crate moving with a constant velocity. Fi
    14·2 answers
  • As you brake your bicycle, your velocity changes from 20 m/s east to 10 m/s east in 5 seconds. What’s your acceleration?
    7·1 answer
  • A 20 kg rover is located on Mars where the acceleration due to gravity is 3.7 m/s/s.
    10·1 answer
  • What potential difference is required across an 32 -Ω resistor to cause 33.72 A to flow through it?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!