1. Intro to Physics Units

Starting with the definition 1 in. = 2.54 cm, find the number of kilometers in 1.00 mile

Noah's ark was ordered to be 300 cubits long, 50 cubits wide, and 30 cubits high. The cubit was a unit of measure equal to the length of a human forearm, elbow to the tip of the longest finger. Express the dimensions of Noah's ark in meters, and estimate its volume (m³).

The most powerful engine available for the classic 1963 Chevrolet Corvette Sting Ray developed 360 horsepower and had a displacement of 327 cubic inches. Express this displacement in liters (L) by using only the conversions 1 L = 1000 cm³ and 1 in. = 2.54 cm.

An angstrom (symbol Å) is a unit of length, defined as 10^-10, which is on the order of the diameter of an atom. How many nanometers are in 1.0 angstrom?

How much longer (percentage) is a one-mile race than a 1500-m race ('the metric mile')?

Bacteria vary in size, but a diameter of 2.0 μm is not unusual. What are the volume (in cubic centimeters) and surface area (in square millimeters) of a spherical bacterium of that size?

A car is traveling at $55$ miles per hour. What is this speed approximately in $\mathrm{km}/h$?

Convert $2.5m^3$ to $\(\operatorname{cm}\)^3$

Convert the following to basic SI units or a combination of basic SI units:

2.2 x 10⁴ mi²

The platter of the hard drive of a computer rotates at 7200 rpm (rpm = revolutions per minute = rev/min). What is the angular velocity (rad/s) of the platter?

How many years are there in 1.00 second?

An average active person consumes about 2500 Cal a day.

(a) What is this in joules?

(b) What is this in kilowatt-hours?

(c) If your power company charges about per kilowatt-hour, how much would your energy cost per day if you bought it from the power company? Could you feed yourself on this much money per day?

The RDA for the trace element selenium is 0.000070 g/day. Express this dose in mg/day.