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A 1250 W radiant heater is constructed to operate at 240 V.
(a) What will be the current in the heater?
A
(b) What is the resistance of the heating coil?
(c) How much thermal energy is generated in 1.0 h?
J
A sample of gas (? = 1.5) is taken through an adiabatic process in which the volume is compressed form 1600 cc to 400 cc. If the initial pressure is 150 KPa, what is the final pressure? How much work is completed on the gas in process.
what are some popular voltagecurrentresistance analogies? what are some ways you have learned about or will learn about
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
You are a construction worker standing still on 12th Ave N in Fargo, and you watch a minivan drive past at 25 mi/hr eastward. how fast would you observe the rock to travel
A ray of light travels through 3 materials whose surfaces are parallel to each other. The refracted rays (but not the reflected rays) are shown as the light passes through each material. Find the indices of refraction in these two media
A 35 ? lamp and a 90 ? lamp are connected in series and placed across a potential of 40 V. What is the voltage drop across the first lamp
The radius of the aorta is about 1.0cm , and the blood passing through it has a speed of about 46cm/s, Calculate the pressure drop per cm along the aorta.
A ball is thrown off a cliff, 100 meters tall, with an initial velocity of 5.00 m/s, which is purely horizontal direction. How long before the ball hits the ground
Suppose we are given a square coil that is 5.5 cm on a side containing 100 loops of very fine wire. The total resistance of this coil is 2.0 ? 10?3 ?. Find the magnitude of the peak value of the induced current flowing in this coil under these cond..
What are (a) x component and (b) y component of a vector in the xy plane if its direction is 329° counter clockwise from the positive direction of the x axis and its magnitude is 9.0 m.
q1. the loaded cab of an elevator has a mass of 3000 kg and moves 181 m up the shaft in 23 s at constant speed. at what
A toroid having a 7.2 cm square cross section and inside radius of 22.8 cm has 170 turns of wire and carries a current of 1.8 A. What is the magnetic flux through the cross section
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