1 L of water at 20°C will occupy what volume at 80°C? Water has a volume expansion coefficient of 210 × 10-6/C°
A)
1.6 L
B)
1.326 L
C)
1.013 L
D)
0.987 L
E)
0.9987 L
C
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What effect, if any, does increasing the resistance in an RC circuit have on the charging of the capacitor?
a) The resistance has no effect on the charging of the capacitor, which is determined by the emf of the battery and the capacitance of the capacitor. b) Increasing the resistance causes the charging time to increase since the rate at which charges are moving to the capacitor increases. c) The charging time will increase as the resistance is increased because the rate at which charges are moving to the capacitor decreases. d) Increasing the resistance increases the charging time since the emf of the battery will be reduced. e) Increasing the resistance decreases the charging time since the emf of the battery will be reduced.
The __________ moon is visible above the western horizon a couple of hours before sunrise
a. waning gibbous b. waxing gibbous c. waxing crescent d. waning crescent e. new moon
What makes Iapetus different than most other Jovian satellites? a. Its surface is so eroded that it has no distinguishing surface features. b. It is not impacted by Saturn's tidal heating
c. It is perfectly spherical and highly reflective. d. It has an old and heavily cratered surface. e. It is asymmetrical and always faces backward to Saturn.
Discuss a theory that explains how the corona is heated
What will be an ideal response?