Net charge of electrons
Water 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 3.80 liters of water? (1 liter is equivalent to 1.00 x 10-3 m3) (b) What is the net charge of all these electrons?
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A balloon with an initial volume of 2.3L at a temperature of 279K is warmed to 406K. What is its volume at the final temperature?
What is the force vec F on the 1.0{rm nC} charge in the middle of the figure due to the four other charges? Give your answer in component form.
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What minimum force (assumed constant) is needed from the catapult that is used to help launch the jet? Assume that the catapult and the jet's engine each exert a constant force over the 88.9 m distance used for takeoff.
A 375 mL sample of gas is initially at a pressure of 721 torr and a temperature of 32°C. If this gas is compressed to a volume of 286 mL and the pressure increases to 901 torr, what will be the new temperature of the gas (reported to three sig
At a distance of 4.32 m from a siren, the sound intensity is 3.75 x 10-2 W/m2. Assuming that the siren radiates sound uniformly in all directions, find the total power radiated.
A rifle is aimed horizontally at a target 45m away. The bullet hits the target 1.5cm below the aim point. what is the time takes and the speed?
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