A2.0 v battery is rated at 5 ah. during continuous use, with the battery supplying a current of 200 ma, the battery voltage stays substantially constant at 2.0 v for the first 18 hours. during the next 12 hours, the voltage drops linearly to 1.76 v whereas the current drops linearly to 100 ma. at this point the battery is no longer considered useful. (a) how much energy was delivered by the battery during the 30 hours? (b) plot the battery voltage curve using matlab (x-axis is time in seconds and y-axis is voltage in volts). (c) plot the battery current curve using matlab (x-axis is time in seconds and y-axis is voltage in ampere). (d) plot the battery power curve using matlab (x-axis is time in seconds and y-axis is voltage in watt).

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Amass-spring-viscous damper system of mass 3 kg has a frequency of 100 rad/s and is critically damped. its initial conditions are x(0)-3 mm and (0)-2.3 m/s. does the system overshoot its equilibrium position? prove your answer