An airplane flies in a horizontal circle of radius 500 m at a speed of 150 m/s. If the radius were changed to 1000 m, but the speed remained the same, by what factor would its centripetal acceleration change?
a. 0.25
b. 0.50
c. 1.00
d. 2.00
e. 4.00
b
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Where in the Sun do fusion reactions happen?
A) core and radiation zone B) only the core C) everywhere inside the Sun
An object covers a distance of 8 meters in the first second of travel, another 8 meters during the next second, and 8 meters again during the third second. Its acceleration is
A) 0 m/s2. B) 5 m/s2. C) 8 m/s2. D) 24 m/s2.
The anomalous Zeeman effect occurs because electrons have intrinsic spin, and when placed in a magnetic field, lose their degeneracy for the __________ states with different ________ . Fill in the missing words
What does the theory neutrino oscillation explain?
a. Why more electron neutrinos leave the Sun and more muon and tau neutrinos reach the Earth. b. Why exactly 1/3 of the neutrinos reaching Earth are electron neutrinos. c. Why more muon and tau neutrinos leave the Sun and more electron neutrinos reach the Earth. d. Why more electron and muon neutrinos leave the Sun and more tau neutrinos reach the Earth. e. Why the same proportion of neutrinos reach the Earth as leave the Sun.