If the electric potential at point A in the electric field created by a point charge of 3.3 * 10-11 C is 0.6 V, what's the distance
between point A and the point charge? Estimate kas 9.00 x
109Nm2/C2

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)