subject
Physics, 11.02.2020 21:20 emily965692

Marta flies past you at 78% of the speed of light, traveling in a spaceship that would measure 50 meters from end to end if it were at rest in your reference frame.

If you measure the length of her spaceship as it goes by, how long will it be from end to end?

Vaule Unit.
The star Sirius is located 8.6 light-years from Earth (in our Earth-based reference frame). Suppose you travel from Earth to Sirius at 87% of the speed of light. During your trip, how long would you measure the distance from Earth to Sirius to be? in year

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 22.06.2019 07:30, bell777
30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
Answers: 1
image
Physics, 22.06.2019 09:10, melody32
The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island
Answers: 2
image
Physics, 22.06.2019 12:10, lololololol12555
The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.
Answers: 1
image
Physics, 22.06.2019 18:50, rurbanok12
8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.
Answers: 3
You know the right answer?
Marta flies past you at 78% of the speed of light, traveling in a spaceship that would measure 50 me...

Questions in other subjects:

Konu
Mathematics, 17.02.2021 21:30