2:54AM Sat Mar 9 (XY} Qe 2ag HCHW Ch 1 (14).pdf Q 1.C. A friend says he was given a ticket for speeding on the freeway. When you asked him how fast he was going he says 100. What's wrong with his statement? 2.4. 1 centimeter = 6.2137 X 107 miles. Since every conversion factor has two equations then what is the other one? HELP: Put the 1in front of miles. 3.E. a. What is your height in mm units. b. What is your mass-weight in grams if you are given that 1 kg = 2.20 Ibs. 4.E. a. Fillin the two blanks with numbers. mm =1mand 1mm = m b. Fillin the two blanks with numbers: 1KJoule = Joules and Kloule =1 Joule 5.E. a. Suppose you are given that 1mile = 5280 ft. How many square feet are in 1 square mile. ANS: 2.8 x 107 in standard scientific notation NOTE: If this was a WebAssign problem the student would have to enter it as 2.8e7 b. If 100cm = 1m then 1 m? = cm? 6.E. a. The prefix \"kilo\" in the metric system means multiply by so 1 kilocalorie equals calories. Since conversions can always be stated two ways, this means that 1 calorie also equals kilocalories. b. The prefix \"micro\" in the metric system means multiply by so 1 microliter equals liter. Since conversions can always be stated two ways, this means that 1 liter also equals microliters. 7.C. When using standard metric units like time in seconds, mass in kilograms, length in meters, sometimes the numbers are not the \"natural units\". Natural units are units that make the numbers in your answer look the nicest and simplest. For instance, it is more natural to say | bought a shirt for $10 rather than 1000 cents. A snail can crawl 6 feet in 3 hours. a. Calculate the snails speed in units of centimeters/minute. b. Calculate the snails speed in units of miles/day. . Which is the more natural unit to characterize a snail's speed? 8.E. You want to paint a wall in your room measuring 14 feet x 9 feet with a thickness of 1 millimeter. If paint at HomeDepot costs $12 each gallon, then what will be the cost of your project in units of dollars (round to the nearest dollar). Use the fact that 1 gallon=0.134 ft3 and 2.54 cm=1inch. ANS: 37 9.E. A scientist has discovered a new atom called Scottonium. It has a density of 7.51 g/cm3 and the mass of one atom is 4.62 x 107%23mg. Where mg is short for milligram. a. If the atoms are spherical and tightly packed, then what volume of one Scottonium atom in units of [m3] ? ANS: 6.15e 33 HELP: Use dimensional analysis. You don't need to know anything about basic chemistry. b. What is the distance between the centers of two adjacent atoms in units of [cm]. ANS: 2.27e 9 19 Calendar Q Notifications SRS Bt PN