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A current of 15.5 Amp flows through an electric heater operating on 120 Volt. Determine the power consumption of electric heater.
an automobile starts from rest and accelerates to a final velocity in two stages along a straight road. each stage
A charge +q is at the origin. A charge -2q is at x = 9.10 m on the +x axis. (a) For what finite value of x is the electric field zero? (b) For what finite values of x is the electric potential zero? (Note: Assume a reference level of potential V =..
Your friend recently purchased a musical instrument that generates sound waves using several strings. Determine the length of the strings of this instrument
A fish appears to be 2.00 m below the surface of a pond when viewed almost directly above by a fisherman. What is the actual depth of the fish
When standing a certain distance from a jet on the ground on which all three engines are running at equal power, the sound level is heard at the threshold of pain, 120dB. (A) If the pilot shuts down 2 engines however leaves the 3rd at the same power,..
What is an average acceleration of the dragonfly
A camper is trying to start a fire by focusing sunlight onto a piece of paper. The diameter of the sun is 1.39x109 m, and its mean distance from the earth is 1.50x1011 m. The camper is using a converging lens whose focal length is 10.1cm.
A camber carriers her drinks in an ice chest made of styrofoam. The chest is 40 cm x 45 cm x 70 cm, and the walls and lid are 2.5 cm thick. What is the rate of heat flow through the walls of the box
An engine with an output of 267.0 W has an efficiency of 39.0 %. It works at 9.00 cycles/s. How much work is done in each cycle
An autoclave is a device used to sterilize laboratoryinstruments. It is essentially a high-pressure steam boiler andoperates on the same principle as a pressure cooker. What is the temperature of the steam
In introductory physics laboratories, a typical Cavendish balance for measuring the gravitational constant G uses lead spheres with masses of 1.10 kilogram, Find the gravitational force between these spheres
macie pulls a 40 kg rolling trunk by a strap angled at 30deg from the horizontal. she pulls with a force of 40 n and
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