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Unformatted text preview: UD Phys207W09 Quiz 1 Name A1331”? 43¢ You must show all ofyour work for credit. Include units with your numerical answersf
1] A typical sugar cube has an edge length of 1 cm. If you had a cubical box that contained
a mole ofsugar cubes, what would its edge length be m SI units? (One mole=6.02 x 1023 uniisi VD [W “M ﬂjﬂs Awe: (misc/cps) (tog km 2] An object falls from a bridge that is 45 m above the water. it falls directly into a small
boat moving with constant velocity that was 12 m from the point of impact when the object
was released. What was the speed of the boat? V" x: x +vs,++ 3d vzszv +36LAX , C): k-l—o—ﬁj-l \
(5+ 1/7 ﬁMmﬂLer tussle 0‘2 #kszCp’LMWM X=X0+Va++gaffz V¢~2V§mlcevva3
‘l’l’Vst‘l'DW #chéfaf , a UD PhysZO7W09 Quiz 1 Name A73;§¢&" [4194 You must show all of your work for credit. Include units with your numerical answers.
1) If a light-year is the distance that light travels in one year, and the speed of light is
c=3 x 108 m/s. What is a light-year in units of miles? (1mi=1.61 km] 2)  An arrow is shot straight up in the air with an initial speed of 100 m/s. If on striking
the ground it imbeds itself .1 m into the ground, find H [a] The acceleration [assumed constant] required to stop the arrow ( [b] The time required for it to come to rest. I
Neglect air resistance during the arrow’s ﬂight. v: =V+¢+
V=V>z 4—3an LMJV thfm _W+ PW! WWNQ a.
)n/éK‘H/ﬁ‘f? +9; «(1&1 V1" :+ Aq A32 V02. =V‘ ...
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- Winter '09