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
Lostsunrise [7]
3 years ago
7

Light going from glass (index of refraction = 1.4) to ethanol has a critical angle of incidence of 65°. What is the index of ref

raction of ethanol?
Physics
1 answer:
sukhopar [10]3 years ago
6 0

Answer:

1.27

Explanation:

n_{g} = Index of refraction of glass = 1.4

n_{e} = Index of refraction of ethanol = ?

i = Angle of incidence = critical angle = 65° deg

r = Angle of refraction = 90° deg

Using Snell's law

n_{g} Sini = n_{e} Sinr

(1.4) Sin65 = n_{e} Sin90

n_{e} = 1.27

You might be interested in
The balance Lenght of a potent ometer wire for a Cell of emf 1.62v is 90cm. if the Cell is replaced by another one of emf 1.08v.
andrew-mc [135]

Answer:

answer is 3.05v

Explanation:

hope it is helpful and briliant

6 0
2 years ago
PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST The actual subject is Science but they dont have that as a option in pick
Sophie [7]

Explanation:

speed : • how fast an object changes position

• miles per hour.

• distance/time.

velocity: • speed in a direction

• miles per hour North

• distance/ time in a direction

5 0
3 years ago
Dr. Smith is conducting an experiment to determine if paintings of landscapes produce more peaceful feelings than abstract paint
skad [1K]

The option that could be the hypothesis for this experiment is that D. Abstract paintings may elicit feelings of stress as students try to determine the meanings of the paintings; therefore, abstract paintings may cause college students to report lower feelings of peace.

<h3>What is a hypothesis?</h3>

It should be noted that a hypothesis simply means the proposed explanation made on the basis of limited evidence.

From the information, Smith is conducting an experiment to determine if paintings of landscapes produce more peaceful feelings than abstract paintings.

Therefore, the option that could be the hypothesis for this experiment is that abstract paintings may elicit feelings of stress as students try to determine the meanings of the paintings; therefore, abstract paintings may cause college students to report lower feelings of peace.

Learn more about hypothesis on:

brainly.com/question/11555274

#SPJ1

3 0
2 years ago
Which statements about Earth’s core help explain Earth’s magnetic field? Check all that apply.
nalin [4]
<span>The inner core is liquid and moving.</span>
7 0
4 years ago
Read 2 more answers
What velocity does a 2kg mass have when its kinetic energy is 16 J
alexandr402 [8]
We can use the equation for kinetic energy, K=1/2mv².
Your given variables are already in the correct units, so we can just plug in the variables and solve for v. 

K = 1/2mv²
16 = 1/2(2)v²
16 = (1)v²
√16 = v
v = 4 m/s

Therefore, the velocity of a 2 kg mass with 16 J of kinetic energy is 4 m/s.
Hope this is helpful!
7 0
3 years ago
Other questions:
  • Which statement best describes resistance? Resistance is
    7·2 answers
  • Stars are called blackbody radiators because they
    14·1 answer
  • Long sand ridges oriented at right angles to the wind are called _____ dunes
    14·2 answers
  • Jill pulls on a rope to lift a 12 kg pail out of a well, while the clumsy Jack watches. For a 10.0 meter segment of the lift, sh
    14·1 answer
  • The image of an object is 20 cm in front of a convex lens with a 10cm radius
    8·1 answer
  • A single loop of wire with area A carrying a current I has a magnetic moment µ = IA. If you wanted a single loop of wire with an
    8·1 answer
  • A car with a mass of 1140 kg is traveling in a mountainous area with a constant speed of 71.8 km/h. The road is horizontal and f
    10·1 answer
  • The illuminance On a surface is six lux and the surface is 4 meters from the light source what is the intensity of the source
    13·1 answer
  • What is the displacement of a car traveling 14 km North on I985 then 20 km South on I985?
    8·1 answer
  • Derive an equation of motion s=ut+1/2at2 for an object moving in straight line​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!