Suppose the room in which you are sitting was magically transported off Earth, and sent accelerating through the universe at 9.8 m/s2 Assuming your doors and windows are sealed and closed, how could you tell that you'd left Earth?
A) You would weigh more than you do on Earth.
B) You couldn't—the equivalence principle tells us that you won't be able to tell the difference.
C) Your time would run slower than it does on Earth.
D) You'd hear a loud whooshing sound as you careened through space.
B
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The __________ of the sun is not visible during a total solar eclipse
Fill in the blank(s) with correct word
What is Tunguska?
A) the site of an asteroid impact that occurred in Siberia in 1908 B) a postulated binary companion to the Sun thought to be responsible for mass extinctions C) a long period comet that struck Jupiter in 1994 D) the Gulf of Mexico basin that is the crater of the asteroid impact that caused the mass extinction of the dinosaurs 65 million years ago E) a newly discovered moon of Pluto
The basic idea of the "string" hypothesis is that the fundamental particles are
A) very tiny hollow spheres. B) tiny loops of infinitely slender material. C) just geometric points (infinitely tiny points). D) made of chocolate fudge. E) infinitely long and infinitely slender objects.
A mass is bouncing on the end of a spring with a period T when measured by a ground observer. What would the period of oscillation be (as measured by the same observer) if the mass and spring were moving past the ground observer at a speed of 0.600c?
a. 0.440 T c. 0.600 T b. 1.25 T d. 1.67 T