What is the mass in kilograms of a 130-pound human standing on planet Earth?
multiply by the conversion factor to arrive at the answer: 130 lb x 1 kg / 2.205 lbs = 59 kg
Someone wants to sell you a piece of gold that they say is nearly pure. Before buying the piece, you measure its mass to be 52.3 grams and you find that it displaces 4.16 mL of water. Calculate its density and assess its purity given the fact that pure gold has a density of 19.3 g/mL.
divide the mass by volume to arrive at the density: density = mass / volume = 52.3 grams / 4.16 mL = 12.6 g/mL From Table 1.3, we see that this is substantially less than the accepted density of pure gold, NOT ENOUGH INFORMATION IS GIVEN TO CALCULATE THE PURITY
How many joules are there in a candy bar containing 230,000 calories?
multiply by the conversion factor to arrive at the answer: 230,000 calories x 1 joule / 0.239 calories = 960,000 joules
The primary difference between basic and applied research is that:
basic research aims at answering fundamental questions about the essence of nature, whereas applied research aims at providing products and processes that are more immediately useful to society.
Which of the following are not examples of conversion factors that could be used in a unit-conversion calculation?
1 kilogram = 34.4 milliliters
According to the Metric Prefixes Table in Chapter 1, the exponential forms of the metric prefixes "giga-" and "micro-" are 109 and 10-6, respectively. How many micrograms would there be in one gigagram?