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Most workers in nanotechnology are actively monitored for excess static charge buildup. The human body acts like an insulator as one walks across a carpet, collecting -50nC per step. What charge build up will a worker in a manufacturing plant accumulate if shewalks 23 steps? How many electrons are present in that emount of charge? And finally if a delicate manufacturing process can be damaged by an electrical discharge of 10^12 electrons, what is the max number of steps any worker should be allowed before touchingthe components?
What is the fractional change in the period of the pendulum.
A long straight metal wire of radius r1= 3.30E-2 m is bounded by a metalic cylindrical shell of inner radius r2= 1.39 E-1 m and outer radius r3= 1.84E-1 m.
How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)
Two bars of identical mass are at 29 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/ (kg • C°).
Find the forces that act on each of the three charges. a) q = -1.0 µC in vector form b) q= 3 µC in vector form b) q =5 µC in vector.
The length of a simple pendulum is 0.73m, the pendulum bob has a mass of 307 grams, and it is released at an angle of 12° to the vertical. With what frequency does it vibrate? Assume SHM. What is the pendulum bob's speed while it passes through th..
An object consists of a ball of weight W glued to the end of a uniform bar also of weight W. if you release it from rest, with the bar horizontal.
Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for light of single wavelength. It then falls on two slits separated by 0.410 . In resulting interference pattern on a screen 2.10 away, adjacent bri..
A 47 kg person, standing 0.980 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 3.10 m/s relative to the ground. Find resulting angular speed (in rad/s) of the disk.
What is moment of inertia
A projectile is launched straight up at 59 m/s from a height of 73 m, at the edge of a sheer cliff. The projectile falls, just missing the cliff and hitting the ground below.
Find the rotational frequency of the wheel.
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