The chemical composition differences between the planets are basically the result of the fact that different elements condense out of gas at different ________
Fill in the blank(s) with correct word
temperatures.
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Imagine that in the distant future you (on earth) are watching a transmission from Pluto, which at the time is 5.0 light-hours from earth. You notice that a clock on the wall behind the person speaking in the video reads 12:10 p.m. You note that your watch reads exactly the same time. Is the station clock synchronized with your watch?
A. Yes, it is. B. No, it isn’t. C. The problem doesn’t give enough information to tell.
Four waves are described by the following equations, where distances are measured in meters and times in seconds
I. y = 0.12 cos(3x - 21t) II. y = 0.15 sin(6x + 42t) III. y = 0.13 cos(6x + 21t) IV. y = -0.23 sin(3x - 42t) Which of these waves have the same speed? A) I and II B) I and III C) II and III D) III and IV E) II and IV
How much heat (in kilocalories) is needed to convert 1.00 kg of ice at 0°C into steam at 100°C?
a. 23.9 b. 79.6 c. 564 d. 643 e. 720
In a certain nuclear reactor, neutrons suddenly collide with deuterons, which have twice the mass of neutrons
In a head-on elastic collision with a stationary deuteron, what fraction of the initial kinetic energy of a neutron is transferred to the deuteron? A) 1/2 B) 1/3 C) 3/4 D) 5/6 E) 8/9