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The density of free electrons in gold is 5.90 × 1028 m-3. The resistivity of gold is at a temperature of 20°C and the temperature coefficient of resistivity is A gold wire, 1.1 mm in diameter and 29 cm long, carries a current of 650 mA. The drift velocity of the electrons in the wire is closest to:Answer8.3 × 10-5 m/s1.0 × 10-4 m/s1.2 × 10-4 m/s9.4 × 10-5 m/s7.3 × 10-5 m/s
There are 3 force vectors acting upon a central mass of m = 2.5 kg. What is the magnitude and direction of the acceleration
A 82 kg student sits on a chari which is soley supported by a solid 0.92 meter long steel rod 0.98 cm in diameter
If the string is 9.5 long, has a mass of 30 and is pulled taut with a tension of 8.50, how much time does it take for a wave to travel from one end of string to the other?
What could you expect the intrusion into the vechicle is, based on this information? Explain how you arrived at this intrusion.
A 4.1-kg block slides down an inclined plane that makes an angle of 29° with the horizontal. Find the coefficient of kinetic friction between the block and plane
The radius of a rod is 0.251 cm, the length of aluminum part is 1.3 m and of the copper part is 2.66 m, Determine the elongation of the rod
Consider a model thermodynamic system in which the allowed (nondegeerate) energy levels are 0, E, 2E, 3E. Compute the average occupation numbers for each energy level
Determine the circumference of a path that follows a great arc at a latitude of 45 degrees around a spherical planet that has a radius R of 5000
The electric field between the plates of the velocity selector in a Bainbridge mass spectrometer is 1.27×10^5 , and the magnetic field in both regions is 0.580 T. Determine the mass number of this selenium isotope
A thin, square, conducting plate 51.5 cm on a side lies in the xy plane. A total charge of 4.25 10-8 C is placed on the plate. Find the charge density on each face of the plate
A 36.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 20.0 m. What is the centripetal acceleration of the child
An air-filled parallel-plate capacitor has plates of area 2.60 cm2 separated by 2.50 mm. The capacitor is connected to a 6.0 V battery. What is the charge on the capacitor
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