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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 piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 292.0 Hz. The tuner hears 4.0 beats per second. What was the original frequency of the untuned string
A boat moves relative to water with a velocity which is n =2 times less than the river flow velocity. At what angle to the stream direction should the boat move to minimize drifting.
The plates of a spherical capacitor have radii 36.0 mm and 44.0 mm. What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance
A 3 ohm resistor is mounted in parallel with a resistor R=11 ohm , and this combination is connected in series with an 4 ohm resistor and a 12 Volts battery. What is the current through the R resistor? Amp
The magnetic field of an electromagnetic wave in a vacuum is Bz=(2.5 microT)Sin(1.9*10^7 x-2(3.14)ft), where x is in m and t is in s. What is the wave's electric field amplitude
two charges are located on the x axis q1 4.6c at x1 5.5 cm and q2 6.0c at x2 -3.1 cm. two other charges are located
when the string of a guitar is pressed against a fret the shortened string vibrates at a frequency 5.95 higher than
Find the minimum initial speed of a projectile in order for it to reach a height of 2201 km above the surface of the earth
An 80 kg hockey player is gliding down the ice with a velocity of 7.5 m/s in +ve x directon.he is hit by a defensive player of mass 105 kg ans an initial velocity of 4.5m/s in -ve y direction.if the players experience a completely inelastic collision..
Assume that ?1(x,t) and ?2(x,t) are solutions of the one-dimensional time dependent Schrodinger’s wave equation. (a) Show that ?1 + ?2 is a solution. (b) Is ?1 * ?2 is a solution of the Schrodinger equation in general? Why or why not?
The loaded cab of an elevator has a mass of 2.8 x 10^3 kg and moves 214 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab.
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown, What is the horizontal component of the ball's velocity just before it is caught
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