3. Star Wars In episode 5 of Star Wars the Empire's space ships launch probe droids throughout the galaxy to seek the base of the Rebel Alliance. Suppose a space ship moving at 2.3 x 108 m/s toward Hoth (site of the rebel base) launches a probe droid toward Hoth at 2.1 x 108 m/s relative to the space ship. According to Galilean relativity: а) b) will they see the probe before it lands on Hoth? What is the speed of the droid relative to Hoth? If rebel astronomers are watching the approaching spaceship through a telescope,
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- 2. Suppose the boat A is moving relative to the water with a velocity of 6 m/s due east and boat B is moving with a velocity of 12 m/s due west. Assume that observers on both boats use reference frames in which the x direction points east. According to the Galilean veloc- ity transformation equations, what is the velocity of boat A relative to boat B. (Hint: Draw a picture. Be sure to define which object corresponds to which frame.)8. In a proton linear accelerator, protons are accelerated to have a kinetic energy of 550 MeV. What is their relativistic momentum? (The rest mass of a proton is 1.67 x 10-27 kg.) kg.m/s 163) The new Earth-Pluto SuperShuttle boasts that it can take you between the two planets, which are 5.0 hours apart in 2.5 hours (according to your watch). What time interval is measured by people in the Earth-Pluto frame? What is the shuttle's speed?
- 24. A person in a spaceship passing Earth observes her own heart rate to be 75 beats / minute and her spaceship to be 60 m long. A person on Earth observes the spaceship person's heart rate to be 45 beats / minute and her spaceship to be long. A.36 m B. 48 m C. 60 m D. 75 m E. 100 mAn astronaut on a rocket ship is headed straight for another galaxy and an observer is standing on Earth. If they both shine a flashlight simultaneously as the rocket ship is moving away at a large speed, which of the following is true? A. The person on the rocket measures a higher velocity for the light from the flashlight. B. The person on the Earth measures a higher velocity for the light from the flashlight. C. They both measure the same velocity of light. D. It cannot be determined without additional information.The great proof of Einstein's Theory of General Relativity was that light is bent by gravity (as it travels through a curved spacetime). Which of these statements is true?? O A light ray is bent the same amount, it doesn't matter how strong the gravity is. O A light ray is bent less by an intense gravitational field. O A light ray is bent more by an intense gravitational field. O Light rays aren't bent.
- The nearest star to Earth is Proxima Centauri, 4.2 light-years away. Part A At what constant velocity must a spacecraft travel from Earth if it is to reach the star in 3.6 years, as measured by travelers on the spacecraft? Express your answer using two significant figures. IVE ΑΣΦ v= 0.805 Submit Part B X Incorrect; Try Again; 2 attempts remaining Previous Answers Request Answer How long does the trip take according to Earth observers? Express your answer using two significant figures. D ΠΫΠΙ ΑΣΦ t = 5.2 Submit ? Previous Answers Request Answer ? X Incorrect; Try Again; 4 attempts remaining C years1. An observer on earth sees objects A and B traveling toward the earth each with a speed v but from different directions. Draw the shape of each object as measured by someone traveling with that object, eg. how would objects A look according to someone on A. Earth9. An astronomer on earth observes two spacecraft moving away from each other along an axis that passes through the earth. The astronomer measures the speed of each spacecraft to be 0.875c relative to the earth. At what speed are the spacecrafts moving apart relative to each other? a) 0.496c b) 0.467c c) 1.750c d) 0.143c e) 0.991c 10. How far apart must two objects on the moon be to be resolved by a telescope which has a 7.80-m diameter mirror? The wavelength of the light used is A610 nm, and the distance to the moon to be 3.80 x 105 km. a) 24.4 m b) 29.7 m c) 36.3 m d) 72.5 m e) 12.2 m 11. A converging lens with a focal length of (f₁ = 32.0 cm) is placed 42.0 cm to the left of a diverging lens with a focal length of (f2 = -25.5 cm). An object is placed 40.0 cm to the left of the converging lens. What is the location of the image produced by the combination of lenses? a) 32.5 cm to the right of the diverging lens b) 32.5 cm to the left of the diverging lens c) 160 cm to the left of the…
- 1. Some jets emitted by galaxies, for astronomical distances large enough, can appear to travel faster than the speed of light c, through our line of sight. Suppose that a distant galaxy, AB15, is moving with speed v at an angle e with respect to the earth and it emits two light rays separated by a time At in its local time. show that a) The time interval on earth in which the two light rays are emitted is given by Atr = At(1– B cos 0) b) The apparent speed of AB15 measured by an observer on earth is ArT VA = Att B sin e 1-B cos 0 %3D c) For B = 0.75, calculate the value of 0 for which Va =cYou are in a spaceship with no windows, radios, or other means to check outside. How would you determine if the spaceship is at rest or moving at constant velocity? a) By determining the apparent velocity of light in the spaceship b) By checking your precision watch. If it's running slow, then the ship is moving. c) By measuring the lengths of objects. in the spaceship. If they are shorter, then the ship is moving. d) By measuring your weight on a scale located in the spaceship. If you have gained mass, then the ship is moving. e) You should give up because you've taken on a impossible task.