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Gold has one conduction electron per atom. Its density is 19.3gr/cm3,molar mass is 197 gr/mole, and resistivity is .A gold wire with length of 155 cm and 0.247 mm diameter has a potential difference across its endpoints of 3 Volts. Determine the following:
a) The Electric Field E in the wire:
b) The number density n:
c) The drift speed vd of the electrons in the wire:
d) the electron collision frequency;
A Carnot heat engine takes 2000J of heat from the high temperature reservoir at 227 degrees Celsius, What is the Carnot efficiency
A single-turn rectangular coil with a width of 0.3m and a height of 0.2m is in the yz plane. Find the change in flux across the rectangular loop
A two-slit pattern is viewed on a screen 1.17 m from the slits. What is the width of the central bright fringe, if the third dark fringes on either side are 26.4 cm apart?
You shine violet light through a diffraction grating (200 lines/cm) on a screen 2.0 m from the grating. The width of the light beam is 0.15 mm. How many slits will the light pass through
An old-style TV set places 50 kV across two plates of a parallel plate capacitor. An electron is released very close to one plate, find the speed of the electron when it exits the hole in the plate
A construction company is trying to select a concrete brand for laying down a foundation. Which brand of concrete can withstand the higher stress level
A 0.45kg mass is attached to a spring with a force constant of 21N/m and released from rest a distance of 3.6cm from the equilibrium position of the spring, How far is the mass from the equilibrium position
A race car has a mass of 718 kg. It starts from rest and travels 45.0 m in 3.0 s. The car is uniformly accelerated throughout the entire time. What net force is exerted on it.
It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.175 s, elucidate what is the average force exerted on the ball by the wall?
A spool of thread has an average radius of 1- cm. If the spool contains 62.8 m of thread, how many turns of thread are on the spool.
A picture shows a charge A 1.00 m above the origin and has a charge of 5.00 X10^-9, Find the magnitude and direction of the electrostatic force on charge B.
A train moving with constant velocity travels 190m north in 14s and an undetermined distance to the west. Find the direction of the train's motion relative to north
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