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1. Given the sinusoids v1(t) = 250 cos (ωt - 45°) V and v2(t) = 750 sin (ωt)V, use the additive property of phasors to find v3(t) such that v1 + v2 + v3 = 0.
2. Graphically add the following three phasors and determine their sum: V1 = 14.14 + j 14.14 V, V2 = 10 ∠ - 60 V, V3 = - 3.42 - j 9.40 V.
The amplitude of a driven harmonic oscillator reaches a value of 25.0 F0/m at a resonant frequency of 400 Hz . What is the Q value of this system?
A 17.0-g piece of Styrofoam carries a net charge of -0.75 µC and is suspended in equilibrium above the center of a large, compute the charge per unit area on the plastic sheet
A solid cylinder with a mass of 1.5 kg and a radius of 30 cm rotates about an axis through its center. What is the rotaional inertia of the solid cylinder
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.2 m long, 2.5 m wide, and 2.8 m high, What is the mass of the container
A curve of radius 40 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely create the curve?
imagine you are driving at speed 60 mph through air filled with bugs at concentration 1 per cubic meter. the windshield
A 99 kg man lying on a surface of negligible friction shoves a 71 g stone away from himself, giving it a speed of 4.0 m/s. What speed does the man need as a result.
A granite ball of radius 2.00m and emissivity of 0.450 is heated to 135 C whereas the ambient temperature is 25 C. What is the net power radiated from the ball
You are driving a car that weighs 1500 kg at 50 km/h, How much force would you need to apply on the wheels of your car through the breaks in order to be able to stop short of hitting the cat
the blade of a windshield wiper moves through an arc of 90deg in a time of 0.40s. the tip of the blade moves on the arc
A 50kg box is pulled at uniform speed along a horizontal floor by a force parallel to the floor. The coefficient of friction is 0.3. Find the magnitude of the force
A wire having mass per unit length of 0.480 g/cm carries a 2.80 Amp current horizontally to the south. Find the direction and magnitude of the minimum magnetic field
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