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
fgiga [73]
3 years ago
15

Speed of light in a medium with n > 1

Physics
2 answers:
Sidana [21]3 years ago
7 0

Answer:

C

Explanation:

Without thinking, the answer is C.

The problem is with D. Of course it is going to depend on the transparency. If the material is a rock, then the light won't go through, and n >>>1.  I don't think you are intended to think that way, but I sure wish D wasn't there. I'd answer C, but be prepared to see it come out as D.

Tcecarenko [31]3 years ago
7 0

Answer:

it and i quote you "is less than in free space

Explanation:

i cant explain

You might be interested in
Two types of energy can be either kinetic or potential energy. Identify those two types. For each type, explain why it can be ei
love history [14]

Answer:

All forms of energy are either kinetic or potential. The energy associated with motion is called kinetic energy . The energy associated with position is called potential energy . Potential energy is not "stored energy".

Explanation:

8 0
3 years ago
Read 2 more answers
Bonus: (It's not that hard, you just have to pay attention to units.) The Saturn V rocket first stage
agasfer [191]

v = 2.45×10^3\:\text{m/s}

Explanation:

Newton's 2nd Law can be expressed in terms of the object's momentum, in this case the expelled exhaust gases, as

F = \dfrac{d{p}}{d{t}} (1)

Assuming that the velocity remains constant then

F = \dfrac{d}{dt}(mv) = v\dfrac{dm}{dt}

Solving for v, we get

v = \dfrac{F}{\left(\frac{dm}{dt}\right)}\;\;\;\;\;\;\;(2)

Before we plug in the given values, we need to convert them first to their appropriate units:

The thrust <em>F</em><em> </em> is

F = 7.5×10^6\:\text{lbs}×\dfrac{4.45\:\text{N}}{1\:\text{lb}} = 3.34×10^7\:\text{N}

The exhaust rate dm/dt is

\dfrac{dm}{dt} = 15\dfrac{T}{s}×\dfrac{2000\:\text{lbs}}{1\:\text{T}}×\dfrac{1\:\text{kg}}{2.2\:\text{lbs}}

\;\;\;\;\;= 1.36×10^4\:\text{kg/s}

Therefore, the velocity at which the exhaust gases exit the engines is

v = \dfrac{F}{\left(\frac{dm}{dt}\right)} = \dfrac{3.34×10^7\:\text{N}}{1.36×10^4\:\text{kg/s}}

\;\;\;= 2.45×10^3\:\text{m/s}

6 0
2 years ago
How do storms on Jupiter differ from storm systems on Earth?
Vladimir [108]

Answer:

As, Jupiter are one of the largest planet in the solar system and the large amount of the mass of the jupiter are consisted with the gases. The storm tracks in the symmetrical path at the proper latitude in the system. But the storm tracks on the earth in the system where planet are highly variable.

8 0
3 years ago
A 90kg cannon fires 100kg shell with muzzle velocity of 75m/s. Calculate the recoil velocity of the cannon relative to the groun
Gala2k [10]

Answer: 83.8 m/s

Explanation:

momentum of shell = momentum of cannon

M(s) × V(s) = M(c) × V(c)

M(s) = mass of shell, V(s) = velocity of shell

M(c) = mass of cannon, V(c) = velocity of cannon

100kg × 75m/s = 90kg × V(c)

7500 = 90 × V(c)

7500 ÷ 90 = V(c)

83.3 = V(c)

5 0
3 years ago
identify whether each of the following is a former of mechanical energy: elastic potential energy, chemical potential energy, gr
ololo11 [35]
I would say Elastic Potential Energy is a form of Mechanical Energy, because there is an associated motion with it.

I would also say Gravitational Potential Energy is a form of Mechanical Energy.

Chemical potential energy is not a form of Mechanical Energy, it is actually a form of Chemical Energy.  It is actually the energy contained in the chemical nature of a fluid.
4 0
3 years ago
Other questions:
  • Monitoring systems may use ____, which are devices that respond to a stimulus (such as heat, light, or pressure) and generate an
    12·1 answer
  • How does temperature affect water potential?
    7·1 answer
  • If an astronaut throws an object in space, the object’s speed will _____
    11·1 answer
  • An airplane wing is designed so that the speed of the air across the top of the wing is 255 m/s when the speed of the air below
    13·1 answer
  • A 25.0-gram bullet enters a 2.25-kg watermelon with a speed of 220 m/s and exits the opposite side with a speed of 110 m/s. If t
    5·1 answer
  • Ok, so this question is probably really easy but I can't really be bothered to answer it, terrible I know, but I thank all usefu
    12·1 answer
  • What is TRUE about a capitalist society?
    11·2 answers
  • The graph shows a wave that oscillates with a frequency of 60 Hz. Based on the information given in the diagram, what is the spe
    6·1 answer
  • DEFINE the term free fall
    8·2 answers
  • Please answer the questions... I will surely mark you as the brainliest according to me :)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!