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A galvanometer has a full-scale current of 0.092 mA and a coil resistance of 59 Ω. This instrument is used with a shunt resistor to form an ammeter that will register full scale for a current of 63 mA. Decide the resistance of the shunt resistor.
A 100-W lightbulb has a resistance of about 12Ω when cold (12 C) and 140Ω when on (hot). Estimate the temperature of the filament when hot assuming an average temperature when hot assuming an average temperature coefficient of resistivity a =0.0060 ..
The traces of the rain on the side windows of the car make an angle of 60.0 with the vertical. Find out the velocity of the rain with respect to the following reference frames.
an object of mass m 3.5 g and charge q 36 microc is attached to a string and placed in a uniform electric field that
a battleship simultaneously fires two shells toward two identical enemy ships. one shell hits ship a which is close by
When venturing forth on Planet X, you throw a 5.01 kg rock upward at 11.0 m/s, What does the rock weigh on Planet X
Discuss Waves, Sound, and Light. What is a Wave?
A negative charge of -0.525%u03BCC exerts an upward 0.205N force on an unknown charge 0.310m directly below it. What is the unknown charge in microcoulombs
an uncharged spherical shell has a diameter of 9.42 m and contains some distribution of charge inside. there is an
suppose that while lying on a beach near the equator watching the sun set over a calm ocean you start a stopwatch just
the near point of a given individual's eyes is 55cm. what focal length corrective lens should be prescribed so that an object can be clearly seen when placed at 25cm in front of the eye
two people carry a heavy electric motor by placing it on a light board 2.00 m long. one person lifts at one end with a
A barber's chair with a person in it weighs 2100N. The output plunger of a hydraulic system begins to lift the chair when the barber's foot applies a force of 55N to the input piston. Neglect any height difference between the plunger and the piston. ..
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