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The bottom of an aluminum pot has an area of 187 cm2 and a thickness of 5.25 mm. The pot is placed on a stove and heated until water boils away at a rate of 0.235 g/min.
a. How many watts are needed to boil water at this rate?
b. What is the temperature difference between the outside and the inside of the bottom of the pot (in oC, enter deg in answer box)?
The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it is 0.0045 (C°)-1. find the percentage increase in the resistance in a tungsten wire
A car accelerates uniformly from rest and covers a distance of 71 m in 5.6 s. If the diameter of a tire is 42 cm, Find total number of rotations of the wheel
A researcher notices that the frequency of a note is emitted by a car horn appears to drop from 284 Hz to 266 Hz as the car passes him. What value does he obtain for the speed of the car
A skier leaves the ramp of a ski jump with a velocity of 30.0 m/s The slope is inclined at 50.0°, Find the distance from the ramp to where the jumper lands
Ash "the working bee" decides to gather pollen and in her quest flies 50 meters from a beginning point at 0° along the west and finds nothing. Determine the displacement and direction of the bee
An AC voltage of rms value 413 V and frequency 75 Hz is connected across a light bulb with a resistance of 471 ohms. What is the rms current and maximum current
A doubly charged ion is accelerated to an energy of 35.0 keV by the electric field between two parallel conducting plates separated by 2.20 cm
You are given a container with 25.7 g of hydrogen atoms, What is the total charge on the electrons in the container
Define a lie in the strict or formal sense and explain what is meant by communication - what is the principal purpose of communication?
The Baretta Model 92S has a barrel 127 mm long. determine how long is the bullet in the barrel?
Two point charges q1 = 3.40 nC and q2 = -5.50 nC are 0.100m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2. Take an electric potential to be zero at infinity.
In a double slit experiment, monochromatic light of wavelength 660 nm passes through a pair of slits separated by 3.40 x 10-5 m. find the angle corresponding to the first bright fringe
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