Saturn’s rings look bright because __________.
a. light from the Sun reflects off the material in the rings
b. the material in the rings is hot and creates its own light
c. light from Saturn reflects off the material in the rings
Ans: a. light from the Sun reflects off the material in the rings
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A hydrogen atom is in the 6h state. Which one of the following is not a magnetic quantum number?
A) 0 B) 1 C) 2 D) 4 E) 6
A stream of electrons passes through a velocity filter where the crossed magnetic and electric fields are 0.020 T and 5.00 × 10^4 V/m, respectively. Find the kinetic energy (in electron volts) of the electrons passing through the filter. [1 eV = 1.60 × 10^?19 J]
An initially uncharged 10-?F capacitor is charged by a 10-V battery through a resistance R. The capacitor reaches a potential difference of 4 V in a period of 3 s after the charging began. Find the value of R