What is the weight, on Earth, of a book with a mass of 1 point 5 kilograms ?

Weight is calculated by multiplying mass by the gravitational field strength on Earth, about 9.8 N/kg. For a mass of 1.5 kg, the weight is 1.5 × 9.8 = 14.7 N. Therefore, the book weighs 14.7 newtons, choice B.

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