Which of the following statements is/are the foundation of the theory of special

Question

Which of the following statements is/are the foundation of the theory of special relativity? select one: a. The speed of light in a vaccum is the same regardless of the inertial frame of reference. b. Light is a wave that travels through the universal ether. c. All laws of physics remain true in all inertial frames of reference. d. Both a and b, e. Both a and c Which of the following physical properties increases in magnitude as an object approached relativistic speeds? Select one: a. The length of the moving object when observed from the outside. b. The mass of the object when viewed from the outside. c. The time passage experienced from the inside compared to the outside. d. All of the properties increase. What would be the relativistic mass of a 150g baseball moving at 0.65c? Select one: a. 254g b, 197g c. 113g

Explanation / Answer

1) (e) both a and c

2) (b) the mass of the object

3) Ralativistic mass m = m0/sqrt(1 - (v^2/c^2))

plugging in the values m0 = 0.15 kg, v=0.65c

we get,

m = 0.197 kg = 197g (option b)

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