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
Butoxors [25]
3 years ago
10

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela- tive to its

elf. Show that the drone travels at 93% of the speed of light relative to Earth.
Physics
1 answer:
alisha [4.7K]3 years ago
8 0

Answer:

Check Explanation

Explanation:

Let the speed of the drone relative to earth be u = ?

Let the speed of the drone relative to the starship be u' = 0.5c

Let the speed of the starship relative to earth be v = 0.8c

In the theory of relativity,

The 3 speeds are related thus

u = (u' + v)/[1 + (u'v/c²)]

u = (0.5c + 0.8c)[1 + ((0.8c × 0.5c)/c²)]

u = 1.3c/[1 + (0.4c²/c²)]

u = 1.3c/1.4 = 0.9286 c = 0.93 c = 93% c

You might be interested in
If a circle was flattened by pushing down on it, it would most likely form into the shape of ----------- which has ----------- f
murzikaleks [220]
The question is looking for "ellipse" and "two" to fill in the blanks.
8 0
4 years ago
Read 2 more answers
What is the relationship between the temperature of a star and its luminosity?
Sladkaya [172]
The Luminosity of a star is proportional to its Effective Temperature to the 4th power and its Radius squared.
3 0
3 years ago
This is a Physics practice question. How do i solve it?
Elena-2011 [213]

Answer:

P = 140000 [Pa]

Explanation:

To solve this problem we must remember that pressure is defined as the relationship between Force on the area of a body.

In this particular problem, we are given the force acting on the upper surface of the block, including the force exerted by the atmospheric pressure.

P = F/A

where:

P = pressure [Pa] (units of Pascals)

F = force = 3.5*10⁴ [N]

A = area = 0.25 [m²]

P = 3.5*10⁴/0.25

P = 140000 [Pa]

7 0
3 years ago
PLZZ ANSWER THE QUESTION ​
mixas84 [53]
Its Displacement and Time for sure.
Thank You!
Pls mark Brainliest!
7 0
3 years ago
a) A unit of time sometimes used in microscopic physics is the shake. One shake equals 10–8 s. Are there more shakes in a second
lawyer [7]

Answer:

a) Yes, there are 10^8 shakes in a second (1 s \frac{1 shake}{10^{-8}s}=10^8 shake) in a year there are 31,536,000 seconds... that is 3.1536x10^7 (1year\frac{365 day}{1 year} \frac{24 h}{1 day} \frac{60 min}{1 h}\frac{60s}{1min}=3.1536 *10^7)

b) Note that the defined universe day will have 60*60*24=86400 universe seconds if the seconds are defined as normal seconds.

Also one universe day (or 86400 universe seconds) is equivalent to 1010 years. Now using a rule of three we can know the seconds that humans have existed.

106 years * \frac{86,400 universe-seconds}{1,010 years}=9,067.728 s

That is about 2 and half hours.

3 0
4 years ago
Other questions:
  • Biological systems use free energy based on empirical data that all organisms require a constant energy input. The first law of
    15·1 answer
  • What is the best estimate of the frequency of the wave shown below
    9·1 answer
  • A person takes a trip, driving with a constant speed of 94.5 km/h except for a 22.0 min rest stop. If the person's average speed
    12·1 answer
  • On a small planet, an astronaut uses a vertical
    7·2 answers
  • Answer the answers that you know.
    13·1 answer
  • Whats potential energy?
    8·2 answers
  • A radio telescope has a circular collecting dish of diameter 5.0 m. It is used to observe two distant
    9·1 answer
  • Tristan is an engineer working on a design for a new roller coaster. He wants the car to shoot out of the station very fast but
    15·1 answer
  • What is the difference between reflection and refraction? What changes and what does not change.
    14·1 answer
  • Which gives the work done by a torque during angular displacement?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!