The first pulsar was discovered by _________ in November of 1967
a. Jocelyn Bell
b. Isaac Newton
c. Albert Einstein
d. Walter Baade
e. Edwin Hubble
a
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Which of these wins the prize as the blandest appearing planet as revealed visually by space probes?
a. Jupiter b. Saturn c. Uranus d. Neptune
A single slit, 1,400 nm wide, forms a diffraction pattern when illuminated by monochromatic light of 490-nm wavelength. What is the largest angle from the central maximum at which the intensity of the light is zero?
A) 44° B) 41° C) 38° D) 35° E) 32°
Which of these is the classic continuous spectrum?
A) sunlight B) a rainbow C) a neon light D) a fluorescent light E) a glowing nebula, such as M-42
A block of mass m is pushed against a spring of spring constant k. The spring is compressed by a distance d, the block is then released. It is launched by the spring along a horizontal frictionless surface with a final speed v
A second block, this one having mass 4m is pushed against the same spring and released, gaining a final speed 2v. By what distance was the spring compressed in the second case? A) d B) 2d C) 4d D) 16d E) 25d