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A 1.70mcylindrical rod of diameter 0.550cmis connected to a power supply that maintains a constant potential difference of 13.0Vacross its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0C) the ammeter reads 18.8A, while at 92.0Cit reads 17.3A. You can ignore any thermal expansion of the rod.A) Find the resistivity and for the material of the rod at 20 C. (Answer in Omega*m)B) Find the temperature coefficient of resistivity at 20 Cfor the material of the rod. (Answer in Degrees Celcius^-1)
A horizontal beam of electrons initially moving at 3.4 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates.
Determine the maximum magnetic flux through an inductor connected to a standard outlet (?Vrms = 120 V, f = 60.0 Hz)
The first controlled, sustained flight in a heavier-than-air craft was made by Orville Wright on December 17, 1903. Calculate the average velocity of the plane
what is the depth d. what is the angle of refraction.
The impact with the racket gives the ball a constant acceleration over a distance of 47 cm. Illustrate what is the magnitude of the net force acting on the ball?
A 22nF capacitor is in series with a 1.25 (M)(Ohm) resistor. The capacitor is initially uncharged when the series combination is connected across a 24.0V battery. obtain the maximum charge the capacitor will eventually attain
A planet Z has a hole bored in it at its equator, and a shaft of light from it's star goes straight down that hole to the bottom, what is the circumference and radius of planet Z
A sample of an unknown substance appears to weigh 15.3 N in air and 9.16 N when immersed in a solvent with density 1.20 g/mL. Find the density and volume of the sample
1 the scientific method is used by scientists to understand the natural laws that the universe obeys. scientists are
How many homes could be heated with the waste heat
A solid puck with radius R1 = 0.9 m and mass M = 1.4 kg is sitting on a frictionless table. What is the angular acceleration of the puck in rad/s2
The electron is heading at a 45 angle directly toward the wire when it is 50cm away; the electron reaches only as close as 1.0 cm, before being repelled away, always moving in the same plane. If the electron has an initail speed of 3.4 x 10^6 m/s,
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