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1. Silver has a resistivity of 1.62×10^?8 ?m, and a density of 1.05×10^4 kg/m3.
(a) What is the volume of 7.50 g of silver?
(b) You wish to fashion the 7.50 g of silver into a cylinder of length L and cross sectional area A so that the resistance between the ends of the cylinder is 3.50 ?. What is A?
(c) What is L? 2.At 20.0 °C, a mainly silicon resistor has a resistance of 585 ?, and a tungsten resistor has a resistance of 752 ?. At this temperature, the silicon resistor has a temperature coefficient of resistivity of ?0.070 °C^?1 and the tungsten resistor has a coefficient of 0.0050 °C^?
1. At what temperature will their resistances be equal?
A rock is thrown vertically upward with a speed of 11.0m/s from the roof of a building that is 70.0m above the ground, What is the speed of the rock just before it strikes the ground
In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating disk 3.50 m in diameter. The elevator is raised and lowered by turning the disk, and the cable does not slip on the rim ..
A 1.0-kg block of ice is initially at 0°C. Heat is added to this system, and the entropy is increased by 357.1 J/K. How much of the ice melts
How numerous years would it take a thermally insulated one-million-kilogram chuck of granite to undergo a 1000k boost in temperature?
If the beam now strikes the top of a building standing directly at the water's edge, find out the height of the building.
Calculate the irradiance on earth due to radiation from the sun
Consider a mountain range that has been uplifting at a rate of 10 m/Myr for the past 5 Myr, the mountain range to come into a steady state with tectonic uplift, Estimate the soil thickness on the side of the mountain
As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. What will be the acceleration of the bags when you let go of the anchor bag in m/s^2
A storage tank at STP contains 18.5kg of butane gas, C4H10, Determine the number of moles of butane gas
A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. find The magnetic field at the center of this loop
A 50 kg woman jumps straight into the air, rising 0.8m from the ground. What impulse does she receive from the ground to attain this height
A Venturi meter measures fluid speed in a pipe. A constriction (of cross-sectional area A2) is put in a pipe of normal cross-sectional area A1 (A1 = 2A2). Find the ratio of the flow speeds
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