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Question: In the circuit shown (Fig.) the generator G is used to charge two storage batteries E1 and E2 Calculate
(a) The charging current for both batteries.
(b) Total power loss in all resistors.
(c) Power delivered by the generator.
(d) Efficiency of the charging system.
(e) How do the values of (17) through (d) change if the Line resistor is 10 Ω rather than 1.0 Ω?
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nm, How many wavelengths are found within the laser pulse
An object is released from rest and falls in free fall motion. The speed v of the object after it has fallen a distance y is given by v2 = 2gy, what is the percent uncertainty in the calculated value of g
A 12-kg block initially slides at 18 m/s on a flat rough surface and eventually stops. what is the entropy change of the system
a glass tube of radius 0.80cm contains liquid mercury to a depth of 64.0cm at 12 deg. find the depth of the mercury
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 880 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
Your airplane is caught in a brief, violent downdraft. To your amazement the pretzels on your seat-back tray rise vertically, Evaluate the downward acceleration of the plane
Ferris wheel has radius 5.0 and makes one revolution in 8.0 seconds. What is the apparent weight (the the normal force exerted on her by the bench) of the person
A LASIK vision correction system uses a laser that emits 10 ns-long pulses of light, each with 2.5 mJ of energy. What is the average power of each laser pulse
A very fast-moving train car passes you, moving to the right at 0.50c. You measure its length to be 14m. How long does David measure the train car to be
Suppose the solar insolation is 850 W/m2 and you can collect 20% of the energy that fall on the surface of a solar hot dog cooker. If you need 240 W to cook a hot dog, what is the minimum area required?
A 5g bullet leaves the muzzle of a rifle with a speed of 320 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.81 m long barrel of rifle.
Material found with a mummy in the arid highlands of southern Peru has a _6^14 text(C) activity per gram of carbon that is 74.0% of the activity percent initially
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