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Common light bulbs are designed for use with120 V and are rated by the power dissipated as heat and light.a. What is the resistance of a 40W bulb?
b. What is the resistance of a 60 W bulb?
c. If the 40 W bulb is connected in serieswith the 60 W bulb and 120V is applied across the combination, then what is the power dissipated ineach?
Light of 550nm is incident on two slits. A maximum is seen at an angle of 4.10 degrees and a minimum at 4.78 degrees. What is the distance between the slits
What is the direction of the electric field along the positive zsemi-axis (vertical) if the field is created by: a uniformly charged circle in the x-y plane with the center atthe origin; a uniformly positively charged wire along the x axis;
q. a woman walks 252. m in the direction 65.0deg east of north then 212. m directly east.a find the final displacement
A microscope has an objective lens with a focal length of 14.0mm . A small object is placed 0.90mm beyond the focal point of the objective lens. At what distance from the objective lens does a real image of the object form
A thin 320g disk with a diameter of 5.20 cm rotates about an axis through its center with 0.705J of kinetic energy. What is the speed (in m/s) of a point on rim.
q1. an electron starts from rest 75.5 cm from a fixed point charge with q -0.150 microc. how fast will the electron be
A 20-kg rotating disk of radius 0.30m has an angular momentum of 0.40kg?m2/s. What is the angular speed of the disk
While taking photographs in Death Valley on a day when the temperature is 58.0°C, What current does he register there if the temperature is -88.0°C
Steam enters a nozzle operating at steady state with p = 40 bar and T =400oC, and a velocity of 10 m/s. Determine the exit area of the nozzle
An FM radio station of frequency 96.7 MHz puts out a signal of 29900 W. How many photons per unit time are emitted
What is the minimum thickness of the film. what is the magnitude of the average acceleration of the ball through out this time interval.
A solid uniform disk of mass M = 8.8 kg and radius R = 21 cm rests with its flat surface on a frictionless table (i.e., the axis of the cylinder is perpendicular to the table.) The diagram shows a top view. A string is wrapped around the rim of th..
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