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
mezya [45]
3 years ago
10

Suppose that A’, B’ and C’ are at rest in frame S’, which moves with respect to S at speed v in the +x direction. Let B’ be loca

ted exactly midway between A’ and C’. At t’=0 a light flash occurs at B’ and expands outward as spherical wave.
1. According to an observer in S’, do the wave fronts arrive at A’ and C’ simultaneously?
2. According to an observer in S, do the wavefronts arrive at A’ and C’ simultaneously?
3. If you answered no to either 1. or 2., what is the difference in their arrival times and at which point did the front arrive first?
Physics
1 answer:
Inga [223]3 years ago
8 0

Answer:

1) an observer in B 'sees the two simultaneous events

2)observer B sees that the events are not simultaneous

3)  Δt = Δt₀ /√ (1 + v²/c²)

Explanation:

This is an exercise in simultaneity in special relativity. Let us remember that the speed of light is the same in all inertial systems

1) The events are at rest in the reference system S ', so as they advance at the speed of light which is constant, so it takes them the same time to arrive at the observation point B' which is at the point middle of the two events

Consequently an observer in B 'sees the two simultaneous events

2) For an observer B in system S that is fixed on the Earth, see that the event in A and B occur at the same instant, but the event in A must travel a smaller distance and the event in B must travel a greater distance since the system S 'moves with velocity + v. Therefore, since the velocity is constant, the event that travels the shortest distance is seen first.

Consequently observer B sees that the events are not simultaneous

3) let's calculate the times for each event

        Δt = Δt₀ /√ (1 + v²/c²)

where t₀ is the time in the system S' which is at rest for the events

You might be interested in
Helpppppppppppp meeeeeeeeeeeeeeeee
Trava [24]

kinetic energy to gravitational potential energy

6 0
3 years ago
Read 2 more answers
Identified __________ should be tracked until they are corrected
Reika [66]
<h3>✽ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ It would be A. Hazards

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

3 0
3 years ago
Can someone please help me !!<br><br> What is the mass of a mosquito in grams?
Vlad [161]

Serious answer: The average mosquito masses 1-2 mg. Even the state birds of Minnesota. Amazing, considering the nuisance they cause.

Sure hope this helps

5 0
2 years ago
A protostar's radius decreases by a factor of 100 and its surface temperature increases by a factor of two before it becomes a m
Sliva [168]

Answer:

L_f = K (\frac{r}{100})^2 * (2T)^4

L_f = K \frac{r^2}{10000} * 16 T^4

L_f = \frac{16}{10000} k r^2 T^4 = \frac{1}{625} k r^2 T^4

L_f = \frac{1}{625} L_i

So then we see that the final luminosity decrease by a factor of 625 so then the correct answer for this case would be:

B. Decreases by a factor of 625

Explanation:

For this case we can use the formula of luminosity in terms of the radius and the temperature given by:

L_i = K r^2 T^4

Where L_i = initial luminosity, r= radius and T = temperature.

We know that we decrease the radius by a factor of 100 and the temperature increases by a factor of 2 so then the new luminosity would be:

L_f = K (\frac{r}{100})^2 * (2T)^4

L_f = K \frac{r^2}{10000} * 16 T^4

L_f = \frac{16}{10000} k r^2 T^4 = \frac{1}{625} k r^2 T^4

L_f = \frac{1}{625} L_i

So then we see that the final luminosity decrease by a factor of 625 so then the correct answer for this case would be:

B. Decreases by a factor of 625

6 0
3 years ago
People who excel at sports are often admired by others, but even superstars realize that winning is everything.
alexgriva [62]

Answer:

false

Explanation:

i just know

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the significance of the direction of an electric field line at some point on the line?
    8·1 answer
  • One brand of dog whistles claims a frequency of 25 kHz for its product. What is the wavelength of this sound? (the speed of soun
    7·1 answer
  • BRAINLIEST AND MAY DOUBLE POINTS!!!
    10·1 answer
  • *please please help* Suppose you are going on a car trip with your family.
    13·1 answer
  • An 87.6 g lead ball is dropped from rest from a height of 7.00 m. The collision between the ball and the ground is totally inela
    14·1 answer
  • An object is thrown with a force of 30 Newtons and ends up with an acceleration of 3 m/s ^ 2 due to that throw. What is the mass
    6·1 answer
  • Please help with Physics Circuits!
    7·2 answers
  • 3. If there is an atomic mass of 47
    6·1 answer
  • Walk in a straight line. Now stop. Did you accelerate? Explain
    9·2 answers
  • The force of repulsion that two like charges exert on each other 5N. what will be if the distance between the charge is decrease
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!