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1. Estimate the capacitance C of a human being relative to infinity.
2. About how much energy is released when the person touches something and a spark jumps?
3. When one shuffles one's feet on a rug on a dry day, one can get charged to a potential dissimilarity of several thousand volts relative to one's surroundings. Estimate the person's charge under the circumstances.
A 73.0 kilogram man weighs himself at the North Pole and at the equator. Which scale reading is higher and by how much
A 1300 car is approaching the hill shown in the figure at 13.0 when it suddenly runs out of gas. What is the car's speed after coasting down the other side
q1. an aluminum cup contains 225 g of water and a 40-g copper stirrer all at 27degc. a 400-g sample of silver at an
A circus performer stretches a tightrope among two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes the wave 0.905 s to reach the opposite tower, 20.0 m away. If a 1 meter length of the r..
The prong of a tuning fork moves back and forth when it is set intovibration. The distance the prong moves between its extremepositions is 2.29 mm. If the frequency ofthe tuning fork is 440.5 Hz, what are the maximum velocity and the maximum accel..
The potential of a typical storm cloud can be as high as 109 volts. When lightning is produced, a typical lightning strike can produces an electric current of 20,000 amps.
A star with a surface temperature of 19,000 K and a radius of 3.7 X 106 km is located at a distance of 520 pc from the Earth. What is the luminosity of this star
A bullet is fired horizontally at 800 m/s and strikes a target that is 160 m from the gun. If the marksman hears the sound of the impact on the target 0.67 s after he fires the gun, what is the speed of sound?
If this amount were shaped into a cube, what would be the length of one edge of that cube (in meters)
A small statue has a height of 3.8 cm and is placed in front of a concave mirror. evaluate the focal length of the mirror
A long solenoid (cross-sectional area = 0.88 x 10-6m2, number of turns per unit length = 2671 turns/m) isbent into a circular shape so it looks like a doughnut. Thiswire-wound doughnut is called a toroid
A tradesman sharpens a knife by pushing it against the rim of a grindstone. The 35 cm diameter stone is spinning at 200 rpm and has a mass of 18 kg. The coefficient of kinetic friction between the knife and the stone is 0.20. If the stone loses 10% o..
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