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.
A small city requires about 17 of power. Suppose that instead of using high-voltage lines to supply the power, the power is delivered at 120 .Assuming a two-wire line of 0.40 -diameter copper wire, estimate the cost of the energy lost to heat per
Executive privilege is defined as: A rule issued by the president that has the effect of law. The ability of the president alone to withhold information from or refuse to appear before Congress. The ability of the president and executive officials to
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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