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What is the current in the 6.0-Ω resistor?
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- Show that and dm/dt have the same units.Figure CQ20.7 shows a slidewire generator with motional cmf 0 when the wire at A slides across the top and bottom rails at constant velocity v0. (a) When the wire reaches B so that the area enclosed by the circuit is doubled, determine the ratio of the new cmf to the original cmf, /0. (b) If the wire's speed is doubled so that v = 2v0 determine the ratio /0. Figure CQ20.7Figure CQ20.7 shows a slidewire generator with motional cmf 0 when the wire at A slides across the top and bottom rails at constant velocity v0. (a) When the wire reaches B so that the area enclosed by the circuit is doubled, determine the ratio of the new cmf to the original cmf, /0. (b) If the wire's speed is doubled so that v = 2v0 determine the ratio /0. Figure CQ20.7
- The AB cable in the figure is attached to the top of the 3 m high vertical pole and its tension is 50 kN. What are the tensions on the AO, AC and AD cables?If the generator cost function of three generators are given as: C1 = 484.8 + 8.47P1 + 0.9P12 (OMR/h/MW) C2 = 471.9 + 7.87P2 + 0.4P22 (OMR/h/MW) C3 = 469.9 + 8.16P3 + 0.62P32 (OMR/h/MW) Find the optimal dispatch of the three generators. Total load demand is 1640 MW. Lambda() Power P1 PowerP2 Power P3Two wires AC and BC are attached to a 7 Kg sphere that It rotates at constant speed v in the horizontal circle shown in the figure. Yes θ1 = 55° and θ2= 30 ° and d 1.4 m, determine the range of values of v for which both wires are held taut.
- A 80 cm long metal rod rotates about a fixed point at a constant rate or frequency of 5.0 rev/s. What should be the average linear speed (v) of the rod in a plane perpendicular to B, that contributes to the average emf between its ends? Group of answer choices 11.89 m/s 6.29 m/s 25.13 m/s 12.57 m/sA vertical spring with constant k = 5 N/m and damping constant β = 6 kg/s has one end fixed to a wall, and a mass of 98 kg at the other end. Being in the position of equilibrium, the mass is propelled downward with a speed of 4 m/s. Suppose that on the system an external force acts in newtons given by f(t) = 8e^ −t What is the diferential equation and conditions that allow to find the position of the spring as function of a time t, with t in secondsDetermine the radius and pitch p (distance between loops) of the electron's helical path assuming its speedis 2.6x10^6 m/s See the figure
- A vertical spring with constant k = 5 N/m and damping constant β = 6 kg/s has one end fixed to a wall, and a mass of 98 kg at the other end. Being in the position of equilibrium, the mass is propelled downward with a speed of 4 m/s. Suppose that on the system an external force acts in newtons given by f(t) = 8e^ −t What is the diferential equation and conditions that allow to fink the position of the spring as function of the time t, with t in seconds Determine a diferential equation of the position of the mass at any time “t”, with t in secondsThere are 2 thin uniform rods. Rod DC is pinned at its center of gravity (free to rotate 360 degrees), 6 FT long, and perfectly horizontal. Rod AB is perfectly vertical, pinned at the bottom of the rod and 6 FT long as well. Both pins are on the ground (So they form a perfectly horizontal line if you connect them). The pines are 9 FT away from each other. Rod AB is released from rest and hits the end of DC with a coefficient of restitution of 0.6 . DETERMINE THE ANGULAR VELOCITY OF BOTH RODS JUST AFTER IMPACT ASSUMING BOTH WEIGH 20 LBS EACH.Review. After removing one string while restringing his acoustic guitar, a student is distracted by a video game. His experimentalist roommate notices his inattention and attaches one end of the string, of linear density = 3.00 103 kg/m, to a rigid support. The other end passes over a pulley, a distance, = 64.0 cm from the fixed end, and an object of mass m = 27.2 kg is attached to the hanging end of the string. The roommate places a magnet across the string as shown in Figure P23.19. The magnet does not touch the string, but produces a uniform field of 4.50 mT over a 2.00-cm length of the string and negligible field elsewhere. Strumming the string sets it vibrating vertically at its fundamental (lowest) frequency. The section of the string in the magnetic field moves perpendicular to the field with a uniform amplitude of 1.50 cm. Find (a) the frequency and (b) the amplitude of the emf induced between the ends of the string.