An alien spaceship traveling at 0.550c toward the earth launches a landing craft. the landing craft travels in the same direction with a speed of 0.790c relative to the mother ship (as measured by aliens on the mother ship). as measured on the earth, the spaceship is 0.160 ly from the earth when the landing craft is launched.(a) what speed do the earth-based observers measure for the approaching landing craft? (b) what is the distance to the earth at the moment of the landing craft's launch as measured by the aliens (mother ) what travel time is required for the landing craft to reach the earth as measured by the aliens on the mother ship? (d*) what travel time is required for the landing craft to reach the earth as measured by earth-based observers? (e*) what travel time is required for the landing craft to reach the earth as measured by those on the landing craft?
Answers: 3
Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Physics, 22.06.2019 14:00
Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.
Answers: 1
Physics, 22.06.2019 15:30
Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples
Answers: 1
An alien spaceship traveling at 0.550c toward the earth launches a landing craft. the landing craft...
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