bonjour ma prof de maths ma mis un exercice en anglais pouvais vous m'aider s'il vous plaît. Matthew's bedroom has a volume of 40 cubic meters. There are 3,4 x 109 particles of dust per cubic meter. a. Calculate how many particles of dust are present in Matthew's bedroom. Express the answer in scientific notation. b. A dust particle has a mass of 7,53 x 10-10 g. Find out the weight of dust in Matthew's bedroom.
