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
Ann [662]
3 years ago
14

Which property of light remains unchanged when it enters a different medium?

Physics
2 answers:
zepelin [54]3 years ago
5 0

frequency  d is the anwsewr



Amiraneli [1.4K]3 years ago
3 0
The FREQUENCY of light remains unchanged once it leaves the source.
You might be interested in
An electron in a TV picture tube is accelerated through a potential difference of 10 kV before it hits the screen. What is the k
laiz [17]

Answer:

10,000 eV

Explanation:

According to the law of conservation of energy, the kinetic energy gained by the electron is equal to its change in electric potential energy:

K=\Delta U=q \Delta V

where:

K is the kinetic energy of the electron

q=1 e is the magnitude of the charge of the electron

\Delta V is the potential difference through which the electron has been accelerated

For this electron in the TV, we have

\Delta V=10 kV=10000 V

Therefore, the kinetic energy of the electron in electronvolts is

K=(1 e)(10000 V)=10000 eV

7 0
3 years ago
If a body travels half its total path in the last 1.50 s of its fall from rest, find the total time of its fall (in seconds).
svetoff [14.1K]

Answer:

time to fall is 3.914 seconds

Explanation:

given data

half distance time = 1.50 s

to find out

find the total time of its fall

solution

we consider here s is total distance

so equation of motion for distance

s = ut + 0.5 × at²   .........1

here s is distance and u is initial speed that is 0 and a is acceleration due to gravity = 9.8 and t is time

so for last 1.5 sec distance is 0.5 of its distance so equation will be

0.5 s = 0 + 0.5 × (9.8) × ( t - 1.5)²     ........................1

and

velocity will be

v = u + at

so velocity v = 0+ 9.8(t-1.5)    ..................2

so first we find time

0.5 × (9.8) × ( t - 1.5)² = 9.8(t-1.5)  + 0.5 ( 9.8)

solve and we get t

t = 3.37 s

so time to fall is 3.914 seconds

6 0
3 years ago
What is the second most abundant element in the universe? <br> a. h <br> b. c <br> c. fe <br> d. he
Andru [333]
D I think I'm not sure!?.
7 0
3 years ago
--
enot [183]

Answer: 3 square feet

Explanation: I took the test

6 0
3 years ago
Sean applies a force of 100N to move a box 5 meters. How much work did he do?
Grace [21]

Answer:

500 Joules

Explanation:

W(work)= force * distance

w = 100*5

W= 500

6 0
2 years ago
Other questions:
  • Nancy is pushing her empty grocery cart at a rate of 1.8 m/s. 30 seconds later,
    12·1 answer
  • How do inertia and centripetal force combine to keep an object moving in circular motion?
    13·2 answers
  • A force of 34N stretches a very light ideal spring 0.73 m from equilibrium, What is the force constant (spring constant) of the
    5·1 answer
  • A sled is dragged along a horizontal path at a constant speed of 1.50 m/s by a rope that is inclined at an angle of 30.0° with r
    10·1 answer
  • A skateboarder wants to cross a large playground and notices that there are large shapes painted on its asphalt surface. One sha
    7·1 answer
  • A man standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down the man continues
    13·2 answers
  • An open-pipe resonator has a length of 2.39 m. Calculate the frequency of its third harmonic if the speed of sound is 343 m/s.
    8·1 answer
  • A 35.0-g object connected to a spring with a force constant of 40.0 N/m oscillates with an amplitude of 4.00 cm on a frictionles
    11·1 answer
  • HELP ME PLEASE!!!!!! A couch is pushed with a force of 79 N and moves a distance of 7 m across the floor. How much work was done
    15·1 answer
  • For each scenario below, choose the best graph.<br> (a) Maria bikes from home to work.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!