Chapter 1: Problem 20
The scientific method is a dynamic process. What does this mean?
Chapter 1: Problem 20
The scientific method is a dynamic process. What does this mean?
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Get started for freeThe density of pure silver is \(10.5 \mathrm{~g} / \mathrm{cm}^{3}\) at \(20^{\circ} \mathrm{C}\). If \(5.25 \mathrm{~g}\) of pure silver pellets is added to a graduated cylinder containing \(11.2 \mathrm{~mL}\) of water, to what volume level will the water in the cylinder rise?
Diamonds are measured in carats, and 1 carat \(=0.200 \mathrm{~g}\). The density of diamond is \(3.51 \mathrm{~g} / \mathrm{cm}^{3}\). a. What is the volume of a \(5.0\) -carat diamond? b. What is the mass in carats of a diamond measuring \(2.8 \mathrm{~mL}\) ?
Precious metals and gems are measured in troy weights in the English system: \(\begin{aligned} 24 \text { grains } &=1 \text { pennyweight (exact) } \\ 20 \text { pennyweight } &=1 \text { troy ounce (exact) } \\ 12 \text { troy ounces } &=1 \text { troy pound (exact) } \\ 1 \text { grain } &=0.0648 \text { gram } \\ 1 \text { carat } &=0.200 \mathrm{gram} \end{aligned}\) a. The most common English unit of mass is the pound avoirdupois. What is one troy pound in kilograms and in pounds? b. What is the mass of a troy ounce of gold in grams and in carats? c. The density of gold is \(19.3 \mathrm{~g} / \mathrm{cm}^{3} .\) What is the volume of a troy pound of gold?
You are driving \(65 \mathrm{mi} / \mathrm{h}\) and take your eyes off the road for "just a second." What distance (in feet) do you travel in this time?
Science fiction often uses nautical analogies to describe space travel. If the starship U.S.S. Enterprise is traveling at warp factor \(1.71\), what is its speed in knots and in miles per hour? (Warp \(1.71=5.00\) times the speed of light; speed of light \(=\) \(3.00 \times 10^{\mathrm{s}} \mathrm{m} / \mathrm{s} ; 1 \mathrm{knot}=2000 \mathrm{yd} / \mathrm{h}\), exactly. \()\)
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