#physics solution manual

Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it contains gears to count the number of wheel revolutions—it then calculates the distance traveled. If the wheel has a 1.15 m diameter

Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it contains gears to count the number of wheel revolutions—it then calculates the distance traveled. If the wheel has a 1.15 m diameter and goes through 200,000 rotations, how many kilometers should the odometer read? Solution: The formula for the total distance traveled…

How many significant figures does each of the following numbers have? a) 310 b) 0.00310 c) 1.031 d) 3.10(10)^5

How many significant figures does each of the following numbers have? a)  310 b)  0.00310 c)  1.031 d)  Solution:

Part a

Zeroes before the decimal point merely locate the decimal point and are not significant. Thus, 310 has 2 significant figures. 

Part b

Trailing zeros after the decimal point are significant because they indicate increased precision. Therefore, 0.00310 has 3…

How many significant figures does each of the following numbers have? a)  53.2 b)  0.53 c)  5.320 d)  0.0532

How many significant figures does each of the following numbers have? a)  53.2 b)  0.53 c)  5.320 d)  0.0532 Solution:

Part a

All nonzero digits are significant, therefore, 53.2 has 3 significant figures.

Part b

 The number 0.53 can be written in scientific notation as . Therefore, 0.53 has 2 significant figures.

Part c

Trailing zeros are significant because they indicate increased…