When an astronaut experiences weightlessness in deep outer space,  is she at equilibrium?  She may be stationary with respect to her spaceship, and at the same time traveling at a high speed with respect to the stars. Which law of motion offers explanation to this situation? Is she also massless?

Q: A spaceship of proper length Lo = 54.0 m is moving relative to the Earth in the +x direction at a…

A: Given, Proper length, Lo=54 m β=0.9750  d. The time taken by the laser =c In spaceship frame, The…

Q: Problem 4: Two manned satellites are approaching one another at a relative speed of 0.27 m/s,…

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Q: A meteor strikes the moon (event A), causing a large and vivid explosion. Exactly 0.47 s later (as…

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Q: Find the ratio of their kinetic energies.

A: Given; Two bodies  of equal masses are moving with uniform velocities v and 2 v.  → Find ratio of…

Q: Two manned satellites approaching one another at a relative speed of 0.350 m/s intend to dock. The…

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Q: If you increase your velocity while keeping the mass the same, what happens to the momentum?

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Q: 7) Two manned satellites approaching one another, at a relative speed of 0.550 m/s, intending to…

A: Mass of the first satellite,Mass of the second satellite,Two manned satellites approach one…

Q: Two bodies A and B having same mass is moving with velocities v and 2v respectively. Compare their…

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Q: don't In another dream, you find yourself in the middle of outer space with your best friend and his…

A: Let m1 and m2 are the masses of my friend and his twin, respectively. I'll give same pushing force…

Q: An object is made of glass and has the shape of a cube 0.10 m on a side, according to an observer at…

A: Shape of object is cube. When observer at rest: Length of side of cube: Lo = 0.10 m When observer is…

Q: A friend on skis stands still on level ground, covered with dry snow at 08 C. How hard would you…

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Q: If the magnitude of any vector quantity is constant in an inertial frame it will be a function of…

A: The magnitude of any vector quantity is constant in an inertial frame.

Q: 5. Two bodies of masses m; and m, are initially at rest at infinite distance apart. They are then…

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Q: Compare their (1).inertia

A: Given,   Two bodies A and B having same mass is moving with velocities    v and 2v respectively.…

Q: The gravitational attraction between a 20kg cannonball and a marble separated center to center by…

A: Given data: Mass of cannonball is, M=20 kg. Let Mass of marble be, m. Center to center distance is,…

Q: Two bodies A and B having same mass is moving with velocities v and 2v respectively. Compare their…

A: 1) inertia of first body equals to inertia of second body as both body are of equal mass. so both…

Q: Asteroid: An asteroid of mass 288 kg orbits the sun in a long-period orbit of 189 years. It is…

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Q: As a test of the Galilean transformation equations, two physics students are playing catch as shown…

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Q: Two events occur in an inertial system at the same time, but distance Do apart. In another inertial…

A: The Lorentz transformation equations give the relationship between space and time coordinates in…

Q: An object is made of glass and has the shape of a cube 0.10 m on a side, according to an observer at…

A: Shape of object is cube. When observer at rest: Length of side of cube: Lo = 0.11 m When observer is…

Q: Two bodies A and B having same mass is moving with velocities v and 2v respectively. Compare their…

A: 1)  Since two bodies has same mass  m1 = m m2 = m Ratio of inertia  m1 / m2 = 1  m1 = m2 Inertia of…

Q: Two ships of equal mass are 101 m apart. What is the acceleration of either ship due to the…

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Q: An observer is stationary in the inertial system S. A car is moving in the x- direction with speed…

A: The expression for the speed of the baseball as measured from S is, u=v+u'1+vu'c2 here u'=vB

Q: Two manned satellites approaching one another at a relative speed of 0.100 m/s intend to dock. The…

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Q: In the free fall experiment, using the data plotted in the figure and assuming that the mass m is…

A: Solution: Given that the object is fallen from the rest, hence] initial velocity u = 0 to find the…

Q: separation

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Q: An object is made of glass and has the shape of a cube 0.12 m on a side, according to an observer at…

A: Length of the glass cube with respect to rest frame=Lο=0.12m Mass of the glass cube =m'=3.4kg…

Q: An object is made of glass and has the shape of a cube 0.11 m on a side, according to an observer at…

A:

Q: Two manned satellites approaching one another at a relative speed of 0.150 m/s intend to dock. The…

A: To determine,(a) the final velocity after docking, in the frame of reference in which the first…

Q: The mass of a girl is 40 kg.calculate her weight. The weight of a stine is 98N.calculate its mass.…

A: The mass of the girl (m) = 40 kg. The gravitational force by the earth or the weight (W) is given…

Q: Two manned satellites approaching one another at a relative speed of 0.450 m/s intend to dock. The…

A: given

Q: How can you prove that acceleration due to gravity is the same in a resting and moving frame?

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Q: The principle of equivalence states that all experiments done in a lab in a uniform gravitational…

A: Einstein gives the theory of the principle of equivalence which suggest that when a body falls…

Q: An ideal superball clock features a ball bouncing back and forth between two walls in gravity-free…

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Q: An observer is stationary in the inertial system S. A car is moving in the x- direction with speed v…

A: The velocity of the object in frame S' and S are related as…

Q: Two manned satellites approaching one another at a relative speed of 0.100 m/s intend to dock. The…

A: (a) The velocity of the first satellite is zero. Therefore, the initial velocity of the second…

Q: Show that for two inertial reference systems Sand S' that move with a speed U with respect to Siy…

A: The equation holds good.The variations in kinetic energy of a particle moving at speeds V1 and V2…

Q: 1) Calculate the interval As 2 between two events with coordinates (x1 = 50 m, y1 = 0, z1 = 0, t1 =…

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Q: of 5.00 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg.   a. Calculate the final velocity (after…

A: Given data,  m1= 5.00 ✕ 103 kg, m2= 7.5×103 kg u1= 0m/s u2= 0.2m/s v= final velocity after collision…

Q: A space ship travels with velocity of 2 x 10^8 m/s. One person is sitting inside space ship with a…

A: The velocity of the spaceship can be written as v=2×108m/s3×108m/sv=0.67c…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.