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A capacitor, three batteries, three resistors, and three switches (S1, S2 and S3) creates the left side circuit. Values of circuit elements are given as C= 20 uF, ε1= 2.0 V, ε2= 1.0 V, ε3= 3.0 V, R1=0.10Ω, R2=0.05Ω, and R3=0.15Ω. In the circuit established for a long time, S1 and S3 are open and S2 is closed. (a) Calculate the maximum charge on the capacitor using Kirchhoff's rules, if S1 is then closed for a long time? (b) If suddenly S1 and S2 are opened and S3 is closed, find the current that will pass through R3 depending on time.
Derive an expression for escape velocity from earth, considering atmospheric drag force, following the law Fdrag=-kv2 where k is a constant Take mass being launched asm, acceleration due to gravity g, mass of earth M, radius of earth Rand height of ..
A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, thirteen years have elapsed on earth, and 6.5 years have elapsed on board the ship. How far away (in meters) is the planet, according t..
Why is it, considering the very similar electronic structures, that lithium is a metal whereas hydrogen is a molecular solid?
a helium balloon ride lifts up passengers in a basket. assume the density of air is 1.28 kgm3 and the density of helium
A "Carnot" refrigerator (reverse of a Carnot engine) absorbs heat from the freezer compartment at a temperature of -17°C, How much work must be done by the refrigerator to change 0.20 kg of water at 24°C into ice at -17°C
a stone is dropped from the roof of a high building. a second stone is dropped 2.00 rm s later. how far apart are the
During a lunar eclipse, the Moon, Earth, and Sun all lie on the same line, with the Earth between the Moon and the Sun. The Moon has a mass of 7.36 × 1022 kg; Calculate the force exerted on the Earth by the Sun
Your Industry has just developed a new sports drink that is in a container which will keep it cool for up to 6 hours. Develop a marketing plan for this product and then write a 3 page paper describing how you would market the product.
Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. An athlete has a large lung capacity, 7.4. how many molecules of air are in the athlete's lungs
A bolt comes loose from the bottom of an elevator thatis moving upward at a speed of 5.42 m/s. The boltreaches the bottom of the elevator shaft in 2.90 s. Howhigh up (in m) was the elevator when the bolt came loose?
A jet flying at 109 m/s banks to make a horizontal circular turn.The radius of the turn is 3810 m, and the mass of the jet is2.33*105 kg. Calculate the magnitude of the necessary lifting force. L= ?
A penny is dropped from a 500 ft high bridge, How long does it take for the penny to reach the ground below
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