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
AleksandrR [38]
3 years ago
12

An optical fiber is made of clear plastic (n = 1.50). Light travels through the fiber at angles ranging from 40° to 55°. What is

the measurement of the critical angle of this fiber?
Physics
1 answer:
Arada [10]3 years ago
6 0
1/sinc = 1.50
sinc =1/1.5
critical angle = sininverse(1/1.5) = 41.8
You might be interested in
The entropy of an isolated system must be conserved, so it never changes.a. Trueb. Fasle
Snowcat [4.5K]

Answer:

B: False

Explanation:

The second law of thermodynamics states that: the entropy of an isolated system will never decrease because isolated systems always tend to evolve towards thermodynamic equilibrium which is a state with maximum entropy.

Thus, it means that the entropy change will always be positive.

Therefore, the given statement in the question is false.

6 0
2 years ago
Which of the following situations would produce an average velocity of zero?
MariettaO [177]
The correct answer is A
4 0
3 years ago
What is the speed of sound at 33 °C (m/s)? For a frequency of 5 kHz, how large do you expect the wavelength to be (m)?
Vedmedyk [2.9K]

Answer:

-The speed of sound at 33°C is 362.8 m/s.

-The wavelength at a frequency at 5 kHz is 0.07256 m .

Explanation:

let v = 343 m/s be the speed of sound.

let T be the temperature.

then the speed of sound V, at 33°C is given by:

V = v + 0.6×T

   = 343 + 0.6×33

   = 362.8 m/s

Therefore, the speed of sound at 33°C is 362.8 m/s.

the wavelength at a frequency of f = 5kHz = 5000 Hz is given by:

λ = V/f

  = (362.8)/(5000)

  = 0.07256 m

Therefore, the wavelength at a frequency at 5 kHz is 0.07256 m .

7 0
3 years ago
Answer lol! pls! !!!
kogti [31]

Answer:

Confused

Explanation:

more details

5 0
3 years ago
Read 2 more answers
Mass of 23.94kg and volume 2.10 cubic centimeters. Calculate the density of the copper wire in si units (ų/mm cubic)
Kamila [148]

Answer:

Density = 1.14 kg/mm³

Explanation:

Given the following data;

Volume = 2.10 cm³ to mm = 2.10 * 10 = 21 mm³

Mass = 23.94kg

To find the density;

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the equation;

Density = \frac{mass}{volume}

Substituting into the equation, we have;

Density = \frac{23.94}{21}

Density = 1.14 kg/mm³

7 0
3 years ago
Other questions:
  • About three billion years ago, single-celled organisms called cyanobacteria lived in Earth’s oceans. They thrived on the ocean’s
    12·2 answers
  • What is the impulse of a 3kg object accelerating from rest to 12m/s?
    13·1 answer
  • Plate movement cause volcanoes to
    8·1 answer
  • 1) An object with a height of 36 cm is placed 2.1 m in front of a concave mirror with a focal length of 0.50 m. a) Determine the
    13·1 answer
  • Newton's third law is sometimes summarized as "for every action, there's an equal opposite reaction" but when you jump from eart
    15·1 answer
  • What is mechanical energy?
    11·1 answer
  • A _______ is a repeating disturbance or vibration that transfers or moves energy from place to place without transporting mass.
    13·2 answers
  • PLZ HELP!!!!!!! My favorite playground equipment is the swings. In 1-3 sentences explain a pattern of motion that u predict u'll
    14·1 answer
  • Which of the following is not an example of work?
    7·1 answer
  • Which statement best describes the main idea of the poem
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!