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
aalyn [17]
2 years ago
11

Please help me with those multiple choice

Physics
1 answer:
Alexxandr [17]2 years ago
5 0

Answer:

11. Light waves are electromagnetic (created by electromagnetic impulse)

12. Light waves in a medium are slower V = C / Nm where Nm is the index of refraction of the medium

13. The frequency of the vibration remains the same

14. The wavelength of light in the medium is less

λ = V / f    and it was determined in 12 that the velocity is less in the medium

You might be interested in
If you sleep 33% in a day, how many hours is that?
lesantik [10]

In this question, one has to carefully understand that the total number of hours in the day can never be more that 24 hours. based on this important fact the answer to the question can be very easily deduced. The only requirement is calculating perfectly.
Number of hours in a day = 24 hours
Percentage of hours of sleep in a day = 33%
Amount of sleep in the day = (33/100) * 24
                                             = 7.92 hours
So 33% of sleep in a day is equal to 7.92 hours. I hope this answer has helped you. In future you can keep the procedure in mind for solving such problems.
5 0
4 years ago
When the forces acting on a particle are resolved into cylindrical components, friction forces always act in the
Aleksandr [31]

Answer:

Tangential

Explanation: This is a kind of force which act on a moving body in such a way that it is curved in the direction of the path of the body. This implies that when the velocity of the object is positive, the acceleration will be negative.

7 0
3 years ago
When does air become turbulent around a thrown ball?
kherson [118]

Answer: B (on the rough side)

Thanks for using Brainly! Vote Biden 2020

Hope we influenced your vote!

8 0
4 years ago
The magnetic quantum number of an electron (m) designates the:
inessss [21]
I think the correct answer from the choices listed above is the third option. The magnetic quantum number of an electron (m) designates the orientation in space of the orbital (electron cloud). <span>This number divides the subshell into individual orbitals which hold the electrons; there are 2l+1 orbitals in each subshell. </span>
6 0
4 years ago
Why shouldn’t you screw a 150 W light bulb into a 60W socket?( in physics terms)
DedPeter [7]
Because of the high electricity level would be my guess
7 0
3 years ago
Other questions:
  • A team of engineering students is designing a catapult to launch a small ball at A so that it lands in the box. If it is known t
    14·1 answer
  • Find the minimum radius of a helium balloon that will lift her off the ground. the density of helium gas is 0.178 kg/m3, and the
    11·1 answer
  • How fr do you think you would go on a car while sneezing for 2.5 seconds ?
    7·2 answers
  • Exercise 1 - Questions 1. Hold the grating several inches from your face, at an angle. Look at the grating that you will be usin
    7·1 answer
  • In a hydroelectric dam, water falls 33.0 m and then spins a turbine to generate electricity. What is
    9·1 answer
  • a rollercoaster car is moving 19.8 m/s on flat ground when it’s hits the brakes. it decelerates at -3.77 m/s^2 over the next 45.
    11·1 answer
  • Dan and Louis both weighed 90 lbs. Both climbed a hill which rose 60 feet. It took Dan 10 minutes and Louis 4 minutes. How much
    8·2 answers
  • passengers on an airplane move from rest to 73 meters per second before the airplane takes off. if the airplane takes 100 second
    12·1 answer
  • What type of image is formed by a mirror if m= -6.1?
    12·1 answer
  • A cannonball is shot up in the air with a vertical speed of 24 miles what is the cannon balls vertical speed just before it hits
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!