A 10kw 220 v single phase ac motor is operating at 7
a 10kW 220 V single phase ac motor is operating at .7 lagging power factor. Find the value of the capacitor that needs to be connected in parallel with the motor, if the power factor is to be improved to .95 lagging?
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Determine the current i(t) flowing through a resistor if the cumulative charge has flowed through it up to time (t) is given by a) q(t)=3.6t mC b) q(t)=5sin(377t) uC c) q(t)=0.3[1-e^-0.4t] pC d) q(t)=0.2t(sin(120pi(t))) nC
A submarine submerges by admitting seawater (density = 1030kg/m^3) into its balast tanks. Consider a ballast tank with its outlet at the bottom. If the tank is filled to a depth of 0.61 meters and the air pressure in the tank is 2.76 atm,
makes an angle of 35.2o with the horizontal. In part b the person is looking at the top of the antenna, determine How tall is the antenna
In a chemical reaction two water-soluble ionic substances react to form an insoluble solid precipitate in a metathesis reaction. Would you expect DS to be positive, negative, or close to zero for this reaction
a 10kW 220 V single phase ac motor is operating at .7 lagging power factor. Find the value of the capacitor that needs to be connected in parallel with the motor, if the power factor is to be improved to .95 lagging
Find the electric energy density between the plates of a 225-uF parallel-plate capacitor. The potential difference between the plates is 320V
What mass of ammonium chloride should be added to 2.65 of a 0.145 in order to obtain a buffer with a of 9.65
football player kicks a ball with a speed of 22.1 m/s at an angle of 46° above the horizontal from a distance of 38 m from the goal line. What is the vertical velocity of the ball at the time it reaches the goalpost
The observation window of a deepwater diving vessel is 0.5 meters in diameter. Determine the net hydrostatic force on this window if the diving vessel is submerged in seawater (density = 1025 kg/m^3) to a depth of 1500 m.
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