
College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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How many coulombs of negative charge ?Q are there in 0.900 kg0.900 kg of water?
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- A 60-g ball of copper has a net charge of 3 μC. What fraction of the copper's electrons have been removed? (Each neutral copper atom has 29 protons and 29 electrons, and copper has an atomic mass of 63.5 a.m.u.)arrow_forwardA 46.9 g ball of copper has a net charge of 2.9 uC. What fraction of the coppers electrons have been removed ? ( each copper atom has 29 protons and copper has an atomic mass of 63.5)arrow_forwardYou have likely experienced "static shock" recently. The magnitude of charge transferred when you walk across a carpet, reach out and touch a doorknob, and unintentionally give yourself that static shock is around 1.88 nC (nC stands for nano-Coulomb). In units of Giga-electrons, about how many electrons are transferred when you experience static shock?arrow_forward
- A 50.2 g ball of copper has a net charge of 2.2 pC. What fraction of the copper's electrons have been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.)arrow_forwardA positive charge of 9 µC exerts and attractive force of 1 N on an unknown charge 0.8 m away. The unknown charge in µC:arrow_forwardWhat is the force on a -30 µC charge in a 200-N/C electric field? The electric field points to the right. O 0.06 N to the right O 0.006 N to the right 0.006 N to the left O 0.06 N to the leftarrow_forward
- A glass rod with a charge of + 15.6 nC is held 2.50 cm from a piece of wool that is oppositely charged. If the attractive force between the glass rod and wool is - 3.50 X 10 -3 N, what is the charge, in nanoCoulombs, on the piece of wool ? (Ans: - 15.6 nC)arrow_forwardA 3.0-mm-diameter copper ball is charged to 90 nC. What fraction of its electrons have been removed? The density of copper is 8900 kg/m3.arrow_forward(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 8.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 3.00 mC. How many electrons are added for every 109 electrons already present?arrow_forward
- (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 13.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 1.00 mC. How many electrons are added for every 109 electrons already present?arrow_forwardThe force on two positive charges of magnitude 7 μC and 16 μC is 135N. What is the distance the two charges in centimeters?arrow_forwardWater has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons.(a) How many electrons are there in 3.56 liters of water? (A liter is 1.00 10-3 m3)electrons(b) What is the net charge of all these electrons?Carrow_forward
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