Ezekiel is standing inside a spaceship ( S′ frame) that moves to the right at a speed of v=0.5c , where c is the speed of light. Flashlights emitting light signals are located at the front and back ends of the spaceship. The signals from the flashlights reach Ezekiel at the same time. Sabrina stands on Earth observing the same flashlights. According to your friend, which signal was emitted first?
a. The signal from the front flashlight b. The signal from the back flashlight c. Both signals are simultaneous d. Cannot be determined
Answers: 3
Physics, 22.06.2019 04:30
Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.
Answers: 2
Physics, 22.06.2019 05:30
An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?
Answers: 2
Physics, 22.06.2019 07:00
We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?
Answers: 1
Physics, 22.06.2019 18:30
In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents
Answers: 1
Ezekiel is standing inside a spaceship ( S′ frame) that moves to the right at a speed of v=0.5c , wh...
Mathematics, 29.01.2020 20:51
Spanish, 29.01.2020 20:51
History, 29.01.2020 20:51
Biology, 29.01.2020 20:51
Mathematics, 29.01.2020 20:51
Computers and Technology, 29.01.2020 20:51
History, 29.01.2020 20:51
Mathematics, 29.01.2020 20:51
Mathematics, 29.01.2020 20:51
Mathematics, 29.01.2020 20:51
History, 29.01.2020 20:51
Biology, 29.01.2020 20:51