If a K0 meson at rest decays in 0.89 × 10^?10 s, how far will a K0 meson moving at 0.96 c travel through a bubble chamber?
a. 17 cm
b. 1.1 cm
c. 53 cm
d. 42 mm
e. 9.2 cm
e
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Heating from _________ causes the top of Earth's stratosphere to be warmer than the bottom.
a. higher-energy particles in the solar wind b. convection c. the ozone layer absorbing UV light d. charged particles trapped by magnetic fields e. the greenhouse effect
What evidence tells us that the so-called "Martian meteorites" actually came from Mars?
A) Their chemical composition matches that of known Martian rocks. B) Their ages match the known age of Mars. C) Their color is the same as most Martian rocks. D) Their composition tells us they formed farther from the Sun than Earth.
A flywheel's diameter is twice that of another of the same shape and mass. Rotational inertia of the larger flywheel is
A) two times greater. B) four times greater. C) the same as the other's. D) half.
In the equation A = B/C, the B and C are said to be _______________ proportional
a. directly b. inversely c. not d. exactly