Suppose you are sitting in a closed room that is magically transported off Earth so that, as shown in the diagram, you are accelerating through space at 9.8 m/s2. According to the equivalence principle, how will you know that you've left Earth?
A) You won't know that you've left Earth.
B) by looking out the window
C) by the fact that you'll become weightless
D) by the fact that you'll feel yourself pressed harder against the floor
A) You won't know that you've left Earth.
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A coulomb is the same as:
A) an ampere/second B) half an ampere ? second2 C) an ampere/meter2 D) an ampere ?second E) a newton ?meter2
An extrasolar planet is
a. a planet that orbits our Sun that we have not yet discovered. b. one not needed for the formation of our solar system which is kept in a special area just in case. c. a planet found orbiting around a star other than the Sun. d. another name for an asteroid. e. a planet extra close to our Sun.
Telescopes in space do not have the ‘seeing' issues of ground-based telescopes
a. True b. False Indicate whether the statement is true or false
Refer to the speedometer in Figure 2.3. The speedometer reading 75 mph is
A. 200 meters per second. B. the only speed at which mph and km/h are equal. C. approximately 2 kilometers per minute. D. exactly 1 mile per minute.