A fancy sports car moves past an observer on a corner at a speed of 0.600 c. When the observer indicates a one-second interval has passed, what time interval will be shown on the driver's watch?
a. 1.67 s
b. 0.800 s
c. 1.25 s
d. 0.600 s
e. 1.00 s
c
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The longer the wavelength, the bluer and brighter the star appears
a. True b. False Indicate whether the statement is true or false
Which is an example of matter in a plasma phase?
A) dry ice B) a torch flame C) molten lava D) liquid hydrogen E) none of the above
Which of the following describes a fundamental difference between Earth's climate history and the climate histories of Venus and Mars?
A) Earth's climate has remained relatively steady throughout our planet's history. B) Earth got a lot of atmospheric gas from outgassing by volcanoes. C) Earth had enough water to form oceans in its early history. D) Earth's climate can be affected by changes in its axis tilt.
Which one of the diagrams below is not a possible electric field configuration for a region of space which does not contain any charges?
A.
B.
C.
D.
E.
