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
dedylja [7]
3 years ago
9

True or false in order for light to be emitted electrons must move from high energy state to a lower energy state?

Physics
2 answers:
lara31 [8.8K]3 years ago
5 0

Answer:

B

I think it is false.

It does not move to lower energy state.

victus00 [196]3 years ago
5 0
The answer to your question is true
You might be interested in
How are doctors both accurate and precise when preforming surgery or other things?
mr Goodwill [35]

Answer:

learning about the different functions of the body and therefore they have enough practice in order to have a clean and safe operation

Explanation:

4 0
3 years ago
Which location(s) would usually have SURFACE WINDS blowing in TOWARDS IT from other places? *
Tems11 [23]
Number 2 is the anser tropics
4 0
3 years ago
Read 2 more answers
What would be the coefficient of performance if the refrigerator (operating between the same temperatures) was instead used as a
viktelen [127]

Complete Question

A certain refrigerator, operating between temperatures of -8.00°C and +23.2°C, can be approximated as a Carnot refrigerator.

What is the refrigerator's coefficient of performance? COP

(b) What If? What would be the coefficient of performance if the refrigerator (operating between the same temperatures) was instead used as a heat pump? COP

Answer:

a

 COP = 8.49

b

  COP_1 = 9.49  

Explanation:

From the question we are told that

     The lower operation temperature of refrigerator is  T_1 =  -8.00^oC =  265 \  K

     The upper operation temperature of the refrigerator is   T_2 =  23.2 ^oC =  296.2 \  K

Generally the refrigerators coefficient of performance is mathematically represented as

        COP =  \frac{T_1}{T_2 - T_1  }

=>     COP =  \frac{265}{296.2 - 265  }

=>     COP = 8.49

Generally if a refrigerator (operating between the same temperatures) was instead used as a heat pump , the coefficient of performance is mathematically represented as

            COP_1 =  \frac{T_2}{ T_2 - T_1}  

=>         COP_1 =  \frac{296.2}{ 296.2 - 265 }  

=>         COP_1 = 9.49  

8 0
3 years ago
Radio signals travel at a rate of 3 × 108 meters per second. how many seconds would it take for a radio signal to travel from a
nlexa [21]
<span>3.2x10^-2 seconds (0.032 seconds)
   This is a simple matter of division. I also suspect it's an exercise in scientific notation, so here is how you divide in scientific notation:

   9.6 x 10^6 m / 3x10^8 m/s

   First, divide the significands like you would normally.
 9.6 / 3 = 3.2

   And subtract the exponent. So
 6 - 8 = -2

   So the answer is 3.2 x 10^-2
 And since the significand is less than 10 and at least 1, we don't need to normalize it.

   So it takes 3.2x10^-2 seconds for the radio signal to reach the satellite.</span>
6 0
4 years ago
In a physics lab experiment, a spring clamped to the table shoots a 22g ball horizontally. When the spring is compressed 21cm ,
worty [1.4K]


a square and a triangle I think


6 0
4 years ago
Other questions:
  • A. The distance to a star is approximately 8.58 ✕ 10^18 m. If this star were to burn out today, in how many years would we see i
    5·1 answer
  • A turntable spins up from rest with an angular acceleration of 1.0 rad/s2. A rubber eraser of mass 20 g with coefficientof stati
    5·1 answer
  • A 128 kbs point to point link is set up between Earth and a rover on Mars. Use the distance between Earth and Mars as 55Gm and t
    11·1 answer
  • What is weight in Newton’s, of a 50.-kg person on earth
    6·1 answer
  • Please help me with this question​
    12·1 answer
  • A 500.0-g chunk of an unknown metal, which has been in boiling water for several minutes, is quickly dropped into an insulating
    9·1 answer
  • A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1420 Hz. The bird-watcher, however, hears a
    14·1 answer
  • What changes into energy in the sun?
    14·1 answer
  • If 400 N of force was applied to a rock and it had an acceleration of 20 ms2 , what is the mass of rock?
    14·1 answer
  • Please solve last four questions
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!