When the Sun passes between the Moon and the Earth, we have
A) a solar eclipse.
B) a lunar eclipse.
C) met our end.
Answer: C
Physics & Space Science
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A 2.0 kg mass is attached to the end of a horizontal spring (k = 50. N/m) and set into simple harmonic motion with an amplitude of 10. cm. What is the total mechanical energy of this system?
A) 0.02 J B) 25 J C) 0.25 J D) 1.00 J E) 2.5 J
Physics & Space Science
The bending of light rays around corners is called
a. reflection. b. refraction. c. interference. d. diffraction.
Physics & Space Science
A supertrain (rest-length = 100 m) travels at a speed of 0.950c as it passes through a tunnel (rest-length 50.0 m). As seen by a trackside observer, is the train ever completely within the tunnel? If so, by how much?
What will be an ideal response?
Physics & Space Science
What gives the most direct view into the Sun's core?
What will be an ideal response?
Physics & Space Science