Simple Nature - Light and Matter

give clearer explanations. Finally, when reviewing for an exam, don’t simply read back over the text and your lecture notes. Ins ...

about the functionx(t), given information about the acceleration. To go from acceleration to position, we need to integrate twic ...

It can also be handy to have a relation involving velocity and posi- tion, eliminating time. Straightforward algebra gives v^2 f ...

0.1.6 Basics of the metric system The metric system Every country in the world besides the U.S. uses a system of units known in ...

e/The original definition of the meter. f/A duplicate of the Paris kilogram, maintained at the Dan- ish National Metrology Insti ...

Checking units A useful technique for finding mistakes in one’s algebra is to analyze the units associated with the variables. C ...

g/This is a mnemonic to help you remember the most im- portant metric prefixes. The word “little” is to remind you that the list ...

the notation 10^0 to stand for one, the number that is in turn ten times smaller than 10^1. Continuing on, we can write 10−^1 to ...

force, and the best unit to use for mass is the slug, which is about 14.6 kg.) More important than memorizing conversion factors ...

factor would be 10 −^3 kg 1 g (correct). You can usually detect such a mistake if you take the time to check your answer and see ...

was two sig figs. The result is 22 cm. The rule of thumb works best for multiplication and division. For calculations involving ...

h/A diagram of a tomato. ten, students copy down numbers from their calculators with eight significant figures of precision, the ...

recognizable, realistic, perspective picture of a tomato, like the one at the top of figure h. But in science and engineering, w ...

a/Amoebas this size are seldom encountered. 0.2 Scaling and order-of-magnitude estimates 0.2.1 Introduction Why can’t an insect ...

million cubic centimeters — they think it would make more sense if there were 100 cm^2 in 1 m^2 , and 100 cm^3 in 1 m^3 , but th ...

c/Galileo Galilei (1564-1642). d/The small boat holds up just fine. e/A larger boat built with the same proportions as the small ...

in proportion to their size. There are a lot of objections that could be raised, however. After all, what does it really mean fo ...

h/Galileo discusses planks made of wood, but the concept may be easier to imagine with clay. All three clay rods in the figure w ...

i/The area of a shape is proportional to the square of its linear dimensions, even if the shape is irregular. while discussing c ...

j/The muffin comes out of the oven too hot to eat. Breaking it up into four pieces increases its surface area while keeping the ...