None of the above Which of the following is (are) the wondrous implications of t

Question

None of the above Which of the following is (are) the wondrous implications of the postulates of special relativity? Time dilation in moving reference frame Length contraction in moving reference frames Mass and Energy arc equivalent Inertial mass increases with velocity All of the above You arc in an elevator when the cable breaks and you both accelerate down at the same rate as all freefalling objects on the earth. Compared your weight w hen standing on the Earth, you would weigh Twice as much Half as much The same zero Which of the following statement best describe the General relativity? General relativity holds in inertial frames and it doesn't include gravity General relativity holds only in non-inertial frames and it includes gravity General relativity holds in both inertial and non-inertial frames and it includes gravity All of the above You are in a spaceship far from any planet or source of Gravity, accelerating at the same rate as free-falling object on Earth. Compared to your weight when standing on Earth, you would weigh twice as much half a much the same zero A train is 200 feet long in its own frame, and a railroad platform is 160 feet long in its own frame. The train rushes post the platform so fast that, in the platform's frame, the train and platform arc the same length. How fast was the train moving? 4/3C 5/4C 3/5C 4/3C 5/4C Ignore the rotation of the earth. Which clock ticks more slowly? The one on the top of a mountain. The one at the bottom of that same mountain. They tick at the same rate. Cannot be determined from the information given.

Explanation / Answer

67. E

68. C. as the weight in nothing but attraction force . This weight remains same always on the earth.

69. A

Genaral relativity does not hold in non-inertial frame.

70.D. gravity zero implies no force between me and earth.

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