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Question: A tungsten wire has a radius of 0.070 mm and is heated from 20.0 to 1405 oC. The temperature coefficient of resistivity is α = 4.5 x 10-3 (Co)-1. When 150 V is applied across the ends of the hot wire, a current of 1.8 A is produced.
Question 1: How long is the wire?
I need help to find how long is the wire and neglect any effects due to thermal expansion of the wire.
Calculate the de Broglie wavelength of a 4.6 MeV alpha particle emitted from an atomic nucleus whose diameter is approximately 1.6 x 10-14 m. Calculate its minimum kinetic energy according to the uncertainty principle.
Playing shortstop, you pick up a ground ball and throw it to second base. The ball is thrown horizontally, with a speed of 25 m/s, directly toward point A. Compute how far were you from second baseman
When you take a bath, how many kilograms of hot water (51 °C) must you mix with cold water (14°C) so that the temperature of the bath is 36 °C? The total mass of water (hot plus cold) is 192kg. Avoid any heat flow between the water and its externa..
A cylinder is rotating about an axis that passes through the center of each circular end piece. The cylinder has a radius of 0.0550 m, Find the magnitude of the angular deceleration of the cylinder
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The plates of a parallel place capacitor have an area of 5 cm^2 each, and the capacitor has a capacitance of 3.5 pF. What is the separation of the plates and its final charge density
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A weight of 50lb is hung from the end of a pressurized pipe. The weight is applied at the centroid, so there is no torque pointing to the right. Find the maximum in-plane shear stress at the location of the element
two diffraction gratings a and b are located at the same distance from the observation screens. light with the same
While on vacation you rent a moped and go cruising around a tropical island. If you take a 10.0 degree banked curve with a radius of 15.0 meters at 12.0 m/s, what is the minimum coefficient of static friction between your tires and the road to keep t..
question1a commercial aircraft receives a homing radio signal with an intensity of 12 muwm2 when it is 11 km from the
A 72.3 kg man carrying a 5.23 kg box gets on an elevator. As the elevator accelerates upwards at 0.224 m/s^2, he feels the box is heavier, During this time, what is the weight on the floor from his feet
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