At what phase are the tides least noticeable?
A) New Moon
B) Full Moon
C) Third quarter
D) Waxing crescent
E) Waning gibbous
C
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What telescope instrument is used to counter the eastward rotation of Earth?
a. Newtonian focus b. sidereal drive c. active optics d. Cassegrain focus e. floppy mirrors
Describe the relationship between frequency and wavelength
What will be an ideal response?
1.50 moles of an ideal monatomic gas are initially at a temperature of 317 K. If the gas gains 2730 J of heat and performs 780 J of work, what is its final temperature?
A) 359 K B) 421 K C) 526 K D) 687 K E) 756 K
150 g of liquid nitrogen at its boiling point of 77.0 K is stirred into a beaker containing 510 g of 18.0°C water. If the nitrogen leaves the solution as soon as it turns to gas, how much water freezes? The heat of vaporization of nitrogen is 48.0 cal/g and that of water is 80.0 cal/g
a. none b. 21 g c. 42 g d. 11 g e. 63 g