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
netineya [11]
3 years ago
8

What is the same about each type of electromagnetic wave?

Physics
1 answer:
ehidna [41]3 years ago
5 0
I think it is speed 
 
           hope this helps

You might be interested in
Help with 2 Physics questions, WILL CHOOSE BRAINLIEST
Tju [1.3M]

1) D

2) D.) Greater than \theta_c

Explanation:

1)

The phenomenon of total internal reflection occurs when a ray of light hitting the interface between two mediums is totally reflected back into the original medium, therefore no refraction into the second medium occurs.

This phenomenon occurs only if two conditions are satisfied:

  • The index of refraction of the first medium is larger than the index of refraction of the 2nd medium
  • The angle of incidence is greater than a certain angle called critical angle

In picture 1, we have 4 different diagrams. In the diagrams:

  • The red arrow represents the incident ray
  • The green arrow represents the refracted ray
  • The blue arrow represents the reflected ray

Total internal reflection occurs when there is no refraction, therefore when there is no green arrow: this occurs only in figure D, so this is the correct option. (in figure C, there is a refracted ray but it is parallel to the interface: this condition occurs when the angle of incidence is exactly equal to the critical angle, however in this problem, the angle of incidence is greater than the critical angle, so the correct option is D)

2)

As we stated in problem 1), total internal reflection occurs when the angle of incidence is equal or greater than the critical angle. Therefore in this case, the angle of incidence must be

D.) Greater than \theta_c

3 0
3 years ago
How do u find net force?
Damm [24]
1Draw a quick sketch of the object.
2Draw an arrow showing every force acting on the object.
3<span>To calculate the net force, add any vectors acting on the same axis (x and y), making sure to pay attention to the directions.
Hope this helps :)
</span>
7 0
3 years ago
A speeding car has a velocity of 80 mph; suddenly it passes a cop car but does not stop. When the speeding car passes the cop ca
bezimeni [28]

Answer:

Distance= 4 miles

Time = 36.3 seconds

Explanation:

80 mph = 178.95 m/s

90 mph = 201.32 m/s

V = u +at

201.32= 0+a(4.5)

201.32/4.5= a

44.738 m/s² = a

Acceleration of the cop car

= 44.738 m/s²

Distance traveled at 4.5seconds

For the cop car

S= ut + ½at²

S= 0(4.5) + ½*44.738*4.5

S= 100.66 meters

Distance traveled at 4.5seconds

For the speeding car

4.5*178.95=805.275

The cop car will still cover 704.675 +x distance while the speeding car covers for their distance to be equal

X/178.95= (704.675+x)/201.32

X-0.89x= 626.37

0.11x= 626.37

X= 5694.3 meters

The time = 5694.3/178.95

Time =31.8 seconds

So the distance they meet

= 5694.3+805.275

= 6499.575 meters

= 4.0 miles

The Time = 4.5+31.8

Time = 36.3 seconds

8 0
4 years ago
an ant on a picnic table travels 15 cm east then 25 cm north what is the magnitude of the ants displacement relative to its orig
Setler [38]
Displacement and distance are two different things, distance is the total distance traveled, this would be easy in the case of the ant, that would simply be 15+25= 40cm. 

But, displacement is the 'birds eye' distance between two points, in this question it can be worked out using Pythagoras. (there is a right angled triangle) imagine the base of this triangle is the east direction and north being the upright. then the displacement would be the largest side of the triangle, or the hypotenuse.

Pythagoras said that A^2 + B^2 = C^2
where C is the hypotenuse.

so 15^2 + 25^2 = C^2

C^2 =850

simply square root this to get C

sqrt(850) = 29.15 cm

29.15 cm displaced by the ant 

 
5 0
3 years ago
Which one of the following indicates a drop in temperature? A. The alcohol in a thermometer expands. B. The brass on a bent bime
Travka [436]
D. A bimetallic strip bends so that the steel is on the outside curve.
3 0
4 years ago
Read 2 more answers
Other questions:
  • Can someone tell me the description of the motion of particles of plasma? Please
    10·1 answer
  • Can any type of force be a centripetal force?
    6·1 answer
  • If an object is not accelerating what can you determine about the sum of all the forces on the object
    15·1 answer
  • An electrical field has:
    5·2 answers
  • The current through a stationary loop in a constant magnetic field:
    7·1 answer
  • A supernova results when a star that has used up all of its fuel undergoes an extremely violent explosion and its mass is blown
    9·1 answer
  • During the period that the moon’s phases are changing from new to full, the moon is _____. waxing exhibiting retrograde motion w
    8·2 answers
  • Problem 11.010 IS A rigid tank contains 1 kg of oxygen (O2) at p1 = 30 bar, T1 = 180 K. The gas is cooled until the temperature
    5·1 answer
  • How do the particles in a solid move
    9·2 answers
  • A mechanic oils his tools between uses. Explain how this relates to friction andefficiency.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!