Momentum: Find the magnitude and direction of the net momentum of the system shown in the figure. Express the direction by giving the angle the net momentum makes with the +x-axis.
Fill in the blank(s) with the appropriate word(s).
123 kg . m/s , 212°
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Go to the screen in the interactive figure called "Key Evidence of Water," then zoom in on the “Southern Highlands.” Which geologic processes are most clearly evident in the southern highlands?
A. volcanism and erosion B. impact cratering and erosion C. impact cratering and volcanism D. tectonics and erosion E. volcanism and tectonics
A low density gas must be hot in order to produce an absorption line
Indicate whether the statement is true or false
The length of a spaceship is 14 m when it is at rest. If the spaceship travels by you with a speed of 0.80c, what length does it appear to you?
A) 6.3 m B) 8.4 m C) 18 m D) 20 m E) 22 m
A supertanker filled with oil has a total mass of 6.1 × 108 kg. If the dimensions of the ship are those of a rectangular box 300 meters long, 80 meters wide, and 40 meters high, determine how far the bottom of the ship is below sea level. (?sea = 1020 kg/m3.)
A. 10 m B. 15 m C. 20 m D. 25 m E. 30 m