T2 6.) On planet LV-426, it is observed that a person's weight is the same as it is on Earth, but the planet has a radius half that of Earth. Which of the following must be true? Explain your answer. a.) The mass of LV-426 is 1/4 that of Earth. b.) The mass of Earth is 1/4 that of LV-426. c.) A rock dropped from 10m would hit the ground faster on Earth. d.) A rock dropped from10mwould hit the ground faster on LV-426.

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.

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A: The mass of each particle is We know that;The speed of light is

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A:

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A:

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A:

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A: Given information: Here, Msun is the Sun’s mass.

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A:

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A: Among the known stars, 'Proxima Centauri' is the nearest star to the Sun and its is located around…

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A: We know that energy of universe is a constant. But Einstein said that energy and mass are equivalent…

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A: An Erbium- nucleus contains  protons. The atomic mass of a neutral Erbium-166 atom is 165.930u,…

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A: The earth has gaint amount of mass and due to this it has gravity. Any object that falls from some…

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A:

Q: Question 1 and 2

A: 1. Orbital velocity is given by,

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A:

Q: emitted by a source at rest: i) at a radius of r = 2.2M outside a black hole of mass M =1 Mo. ii)…

A: Given: r= 2.2 M Φ=-6×10-5

Q: What evidence supports the predicted existence of gravitational waves? A. Gravitational waves are…

A: All objects that has mass and accelerated produce gravitational waves. But the mass of earth and…

Q: What are the postulates of special relativity? Select all those apply. I. the laws of physics are…

A:

Q: According to Einstein's theory of General Relativity, what is gravity? a) A force between two…

A: a) A force between two masses. This option reflects the Newtonian understanding of gravity.…

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A: Given: The radius (R) of the Earth is 6370 Km. The value of the GM is 4×1014 m3/s2. Introduction:…

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A: (a) mass, m = 109 kg  velocity, v = 25 km/s The kinetic energy is given by  K = 0.5 mv2K = 0.5 x 109…

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A:

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A:

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Q: What is the rest energy that corresponds to a small amount of table salt (mass = 0.54 grams)? Recall…

A: Mass, m = 0.54 g = 0.54×10-3 kg = 0.00054 kg Speed of light, C = 3×108 m/s Rest mass energy, E = ?

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!