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
IrinaK [193]
3 years ago
10

What happens when a substance absorbs light?

Physics
1 answer:
Anna11 [10]3 years ago
7 0
<span>One of three things the photon passes through unscathed, the photon gets absorbed by the electron of an atom and stays put, or the photon gets absorbed and a second generation photon is generated by that electron</span>
You might be interested in
Direct tension indicators are sometimes used instead of torque wrenches to ensure that a bolt has a prescribed tension when used
natali 33 [55]

Complete Question

The complete question is shown on the uploaded image

Answer:

The tension on the shank is  T =8391.6 N

Explanation:

From the question we are told that

       The strain on the strain on the head is \Delta l = 0.1 mm/mm = \frac{0.1}{1000} = 0.1 *10^{-3} m/m

         The contact area is  A = 2.8 mm^2 = 2.8* (\frac{1}{1000} )^2 = 2.8*10^{-6} m^2  

Looking at the first diagram

           At  600 MPa of stress

               The strain is  0.3mm/mm

          At   450 MPa of stress

                 The strain is   0.0015 mm/mm

 To find the stress at  \Delta l we use the interpolation method

            \frac{\sigma_{\Delta l} -  \sigma_{0.0015} }{ \sigma _ {0.3} - \sigma_{0.0015} } = \frac{e_{\Delta l }  - e_{0.0015}}{e_{0.3} - e_{ 0.0015}}

Substituting values

              \frac{\sigma _{\Delta l} - 450}{600 - 450} = \frac{0.1 -0.0015}{0.3 - 0.0015}

            \sigma _{\Delta l} -450 = 49.50

             \sigma _{\Delta l} = 499.50 MPa

Generally the force on each head is mathematically represented as

              F = \sigma_{\Delta l} * A

Substituting values

             F = 499.50*10^{6} * 2.8*10^{-6}

                =1398.6N

Now the tension on the bolt shank is as a result of the force on the 6 head which is mathematically evaluated as

              T = 6 * F

                  = 6* 1398.6

              T =8391.6 N

                 

     

6 0
3 years ago
4. How long would it take for a water balloon to fall 39 m if we dropped it starting from rest down an
Paraphin [41]

Answer:

Around 2.8212 sec

Explanation:

Given the eqn x=1/2at^2+vot

your vo=0

39=1/2(-9.8)t^2

=7.95=t^2

=2.82sec

8 0
3 years ago
Which of the following is the best explanation of work
Hunter-Best [27]

Answer:

b

Explanation:

b

5 0
3 years ago
Read 2 more answers
A person walks 24 meters at 3 m/s. How long did it take them
asambeis [7]

Hi my dear friend,

2m*30 = 60m

~Thank you

4 0
3 years ago
Read 2 more answers
Which of the following best defines insulator?
aliya0001 [1]

Answer:

A substance with low ability or no ability to conduct energy.

Such as Rubber,Silicone,Plastic

6 0
3 years ago
Other questions:
  • ANSWER ASAP
    8·2 answers
  • What is special about a DC circuit?
    6·2 answers
  • 3. You are to determine the power rating of the motor in an elevator system. The elevator (with a full load) weights 1700 kg and
    11·1 answer
  • Order the seven basic spectral types from hottest to coldest.
    12·1 answer
  • Which vector should be negative?
    11·1 answer
  • What travels on a wave
    11·1 answer
  • Orbiting satellites use geothermal energy panels. <br><br> True <br> False
    8·1 answer
  • Delaney loves her new kiddie pool, but she is afraid to get wet. She crawls around the outside of the pool for hours. Jocelyn sa
    10·1 answer
  • Multiple Intelligences :
    14·1 answer
  • 1. A 500 N force applied to a box at a 50 degree angle above the horizontal surface. Find the x and y
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!