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The relatively high resistivity of dry skin, about 1 x 10^6 ohms - m, can safely limit the flow of current into deeper tissues of the body. Suppose an electrical worker places his palm on an instrument whose metal case is accidently connected to a high voltage. The skin of the palm is about 1.5mm thick. Assume the area of skin on the worker's palm that would contact a flat panel is 1.0×10^?2 m^2 , then calculate the approximate resistance of the skin of the palm.
A 2.0-kg projectile is fired with initial velocity componentsV0x=30 m/s andV0y=40m/s from a pointon the earth's surface. How much work was done in firing the projectile
A wall consists of 2 layers of material: brick in front of an equal thickness of wood. how does the temperature gradient across the wood compare to the gradient across the brick
The average density of the planet Pluto is 2357 kg/m3. The acceleration of gravity on its surface is 0.76 m/s2. Calculate the average radius of Pluto
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.49 m above the bottom of the chute and with an initial speed of 1.55 m/s. How far from the bottom of the chute does the toy zebra come to rest
A particle p traveling with a speed of vpi = 3 m/s hits and scatters elastically from another particle N, initially at rest. What is the magnitude of the momentum of the recoiling N
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object, find vthe object's speed at the bottom of the slope
ccccthe Zambesi river in Africa rushes over Victoria Falls at a rate of 25 x 10^6 gallons per minute. The falls are 108 m high, 1 gallon equals 3.785 x 10^-3 m^3 (or 0.1337 cubic foot), and the water has a density of 1.00 x 10^3 kg/m3 (each cubic foo..
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.70 104 m/s, and the radius of the orbit is5.00 106 m. What is the orbital speed of the second satellite
An iron wire has a cross-sectional area equal to 9.50 10-6 m2. Carry out the following steps to determine the drift speed of the conduction electrons in the wire if it carries a current of 8.0 A. Calculate the drift speed of conduction electrons in..
In an X-ray scattering measurement the first order diffraction peak is observed at ? = 16.5°. What is the angle of the third order peak
A photon with wavelength 4 x 10^-15m converts to a muon/antimuon pair. The rest mass energy of the muon and the antimuon is 105.7 Mev. find the combined kinetic energy of the muon and antimuon
A student places her 350 g physics book on a frictionless table. She pushes the book against a spring, compressing the spring by 4.0 cm, What is the book's speed as it slides away
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