A long coaxial cable consists of an inner conductor r1 = 1.1 mm and outer conductor with inner radius r2 = 4.2 mm. Charges of +2.3 μC and –2.3 μC are placed on the inner and outer conductors, respectively. Required:
a. If the resulting potential difference between the two conductors is 760 V, what is the capacitance in nanofarads of the cable?
b. What is the length in meters, of the cable?

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.