A man is moving by you at a speed close to the speed of light. Which of the following correctly summarizes the effects you would notice on his mass, size, and time?
A) His mass would be increased from its value at rest, his length would be decreased from its rest value but only in the direction in which he is moving, and his time would be running slower than yours.
B) His mass would be increased from its value at rest, his length, width, and height would all be decreased no matter what direction he is moving, and his time would be running slower than yours.
C) His mass would be decreased from its value at rest, his length would be decreased from its rest value but only in the direction in which he is moving, and his time would be running slower than yours.
D) His mass would be increased from its value at rest, his size would be increased, and his time would be running slower than yours.
A
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Kinetic energy
A. Depends only on the mass of the object B. Depends on the speed and the mass of the object C. Depends on only the speed of the object D. Is not in this chapter
________ Paradox asks "Why is the night sky dark?"
Fill in the blank(s) with correct word
If an electric drill has a case ground, this means
1.its case has been ground to a shiny surface. 2.the drill uses a two-prong plug. 3.the "hot" wire and the second wire are both attached to ground. 4.the case of the drill is grounded separately using a third wire.
A concave mirror has a radius of curvature of 1.0 m. An object is placed 2.0 m in front of the mirror. Determine the location of the image (in cm)
a. 130 b. 83 c. 67 d. 150 e. 200