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
nikklg [1K]
3 years ago
7

Which of the following statements is true about light? A. Light needs a medium through which to travel B. Light can not be diffr

acted around objects C. Light can travel through the vacuum of space D. Light moves slower than sound
Physics
1 answer:
maksim [4K]3 years ago
6 0
From that ragged, motley list of statements, only 'C' is true.
You might be interested in
A toy plane is flying in a horizontal circle by being attached to a 0.75 meter string. The plane has a mass of 101.7 grams and m
nadezda [96]

Answer:

F = 2,894 N

Explanation:

For this exercise let's use Newton's second law

      F = m a

The acceleration is centripetal

     a = v² / r

Angular and linear variables are related.

     v = w r

Let's replace

     F = m w² r

The radius r and the length of the rope is related

    cos is = r / L

    r = L cos tea

Let's replace

    F = m w² L cos θ

Let's reduce the magnitudes to the SI system

     m = 101.7 g (1 kg / 1000g) = 0.1017 kg

      θ = 5 rev (2π rad / rev) = 31,416 rad

     w =  θ / t

     w = 31.416 / 5.1

     w = 6.16 rad / s

     F = 0.1017 6.16² 0.75 cos  θ

     F = 2,894 cos  θ

The maximum value of F is for  θ equal to zero

     F = 2,894 N

7 0
3 years ago
Which statement best describes the formation of igneous rocks?
Cerrena [4.2K]

b. describes it best because a form of molten cools down and makes igneous rock. Good luck! Please mark me brainliest!


8 0
3 years ago
Read 2 more answers
Help me please I’ve been stuck on this forever now ☹️
valina [46]
C, velocity I believe this is the answer to your question
7 0
3 years ago
Read 2 more answers
The answers!!! Q53 to 56
nexus9112 [7]

Answer:

See the explanation below.

Explanation:

53) Yes, this process is called latent heat transfer, it happens when heat is transferred to a body or a substance, an increase in its energy is observed without presenting an increase in temperature. An example of this can be seen in the evaporation of water.

54) It absorbs energy since heat transfer always occurs from a space of higher temperature to another with lower temperature so as the wax freezes the heat is transferred from the environment to the wax.

55) The water vapor and wet air will be absorbed by the canvas, the heat contained in this water vapor will be absorbed by the canvas in this way decreases the temperature of the water inside the canteen.

56) The process is vaporization. The refrigerant of the air conditioning equipment enters the coil, in the form of liquid, this liquid is at low temperature, so that the room air at a higher temperature, exchanges heat with the refrigerant liquid, the refrigerant liquid changes the phase of liquid to vapor, for when it is completely vaporized this can be sucked by the compressor equipment.

3 0
3 years ago
Can someone pls help me with this? Its due in 25 minutes
QveST [7]
The angle of reflection is 42 degrees because it says the angle of incidence is equal to the angle of reflection
5 0
3 years ago
Other questions:
  • Is light fastest than speed and why.
    12·1 answer
  • What is the s. i unit of current​
    15·2 answers
  • A 25 N force at 60° is required to set a crate into motion on a floor. What is the value of the static friction?
    13·1 answer
  • During light activity, a 70-kg person may generate 200 kcal
    11·1 answer
  • A 39.7 n object is in free fall. what is the magnitude of the net force which acts on the object? answer in units of n.
    15·1 answer
  • 5 points !!!is potential chemical energy always transformed into kinetic
    5·1 answer
  • If this were a theoretical frictionless plane, what would be the mechanical advantage?
    12·1 answer
  • 5. Steve is driving in his car to take care of some errands. The first errand has him driving to a location 2 km East and 6 km N
    14·1 answer
  • PLEASE HELP I NEED HELP PERIODTT​
    12·2 answers
  • HELP 30 POINTS
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!