According to Einstein's theory of General Relativity, what is gravity? a) A force between two masses. b) A curvature of spacetime caused by mass and energy. c) A result of the electromagnetic force. d) A fictitious force due to inertia.
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A: In the terms of relativity, event is the instantaneous physical situation or occurrence associated…
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Q: Which of the following is a strong piece of evidence for the curvature of spacetime?
A: ANS: a. gravitational wave detections made by LIGO.
Q: 9. Which of the following was Einstein’s Second Postulate to the Special Theory of Relativity? The…
A: Einstein’s two postulates First postulate It states that the laws of physics are the same and can be…
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A: OPTION (d) is correct because Newtonian physics does not apply to very small object. so we use…
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Q: A 70-kg person is standing on earth surface. Calculate the gravitational attraction on the person by…
A: The mass of the person, m=70 kg The mass of the Sun, M=2.0×1030 kg The radius of the Sun, r=6.96×105…
Q: What is gravity in the Theory of General Relativity? Group of answer choices The force that can act…
A: The correct answer is the curvature of space time created by the effect of mass.
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A: Einstein’s theory of general relativity explained some interesting properties of gravity not covered…
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Q: 11. A star is 40.0 light-years from Earth (1 light-year is the distance that light travels in 1…
A: (a) To calculate the distance you would measure when traveling to the star at a high speed, we need…
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A: As we know the speed of light is, c = 3×108 ms
Q: What is proper time?
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A: The electrostatic force or coulombic force is the force responsible for the repulsion of…
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- Suppose Google wants to launch a surveillance satellite to invade the privacy of all their users. They need it to revolve around Earth 10.0 times a day for maximum invasive efficiency. a) Draw a free-body diagram b) What should the radius of its orbit be if we neglect the presence of the Moon? c) How fast is it traveling? G = 6.67 * 10 ^-11 N*m^2/kg^2 M earth = 5.97 * 10^24 kgMultiple choice8. 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 16
- The special theory of relativity is "special" because it deals only with a certain type of reference frames, inertial reference frames. What are inertial reference frames?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 m6. One of the potentially confusing things about special relativity is that it shows us that the time measured between two events depends upon your inertial frame of reference. In particular, two events that appear to be simultaneous in one inertial frame may be measured to occur at different times in a different inertial frame. Even more interesting is that Event 1 might occur either before or after (or at the same time as) Event 2, depending upon your reference frame! The proper interpretation of these facts is to say that nothing in physics forces two simultaneous events in one frame to be simultaneous in any other frame. However, what about the order of events when Event 1 CAUSES Event 2? For example, let's consider two events from a game of pool: 1) A cue ball, traveling at 10 m/s, hits the eight ball (of mass equal to the cue ball). An elastic collision transfers all the linear momentum of the cue ball to the eight ball. 2) 0.1 seconds later, the eight ball sinks in a corner…
- 9. 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…Which of the following are part of the first postulate of Einstein's Special Theory of Relativity? Time and weight are relative to the motion of the observer. All the laws of physics are the same in all inertial frames of reference. Absolute motion can always be detected. a I only b II only c III only d I, II, and IIIIf each mass in the figure is 1 kg, what is the x location of the center of mass? A.) 0.5 B.) 0.67 C.) 1.0 D.) 1.33 What is the y location of the center of mass? A.) 0.33 B.) 0.5 C.) 0.67 D.) 0.85