Posts by Isabell
Total # Posts: 9
A circular wire coil consists of 100 turns and is wound tightly around a very long iron cylinder with a radius of 2.5 cm and a relative permeability of 2200. The loop has a current of 7.5A in it. Determine the magnetic field strength produced by the coil (a) at the center of ...
February 17, 2011
An electron in a computer monitor enters midway between two parallel oppositely charged plates. The initial speed of the electron is 6.15 x 10^7 m/s and its vertical deflection is 4.70 mm. (a) What is the magnitude of the electric field between the plates? (b) Determine the ...
January 13, 2011
A cup of coffee (with lid) is enclosed in an insulated cup 0.5 cm thick in the shape of a cube 9.7 cm on a side. The thermal conductivity of the cup is 0.0002 cal/s x cm x C. The temperature of the coffee is 71 degrees Celsius and the temperature of the surroundings is 25 ...
November 20, 2010
I need help writting a thesis for my NHD project... this years theme is individual in history: action and legacy. i chose gamal nasser, the second presisdent of egypt. my action was his rally of the free officers to overthrow the government with the 1952 revolution and my ...
February 18, 2009