The average mass of a hardcover book is approximately 1-2 pounds (0.45-0.9 kg), while a paperback book usually weighs around 0.5-1 pound (0.23-0.45 kg). These estimates can vary depending on the size, length, and paper weight of the book.
Which is the best estimate for the mass of a duck?
3 grams
10 grams
250 kilograms
1kg
1 gram
15kg
The best unit of measurement to determine the mass of a book is grams.
0.2 grams
1 gram
50
That depends a lot WHAT you want to estimate about the lemon - which of its qualities, e.g., its mass, its diameter, its sourness, its color, etc.