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A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, which is copper and rests on a heating element. In two minutes, the mass of water boiled away is m = 4.5 kg. The radius of the pot bottom is R = 6.0 cm and the thickness is L = 1.0 mm. What is the temperature of the heating element in contact with the pot?
The drawing illustrates the dispersion of light by a prism. The prism is made from a certain type of glass, Find the angles of refraction at which the violet rays emerge into the air from the prism
If 54 J of work are needed to stretch a spring from 15 cm to 21 cm and 90 J are needed to stretch it from 21 cm to 27 cm, what is the natural length of the spring
In the Olympiad of 700 BCE, athletes competing in the standing long jump used handheld weights called halters to lengthen their jumps. What distance would the use of the halters add to his range
A shell is shot with an initial velocity of 17 m/s, at an angle of ?0 = 60° with the horizontal. How far from the gun does the other fragment land
The maximum current in a superconducting solenoid can be as large as 3.51 kA. what is the magnitude of the magnetic field it produces
An aluminum wire carrying a current of 6.0 A has a cross-sectional area of 9.0 10-6 m2. Find the drift speed of the electrons in the wire
A cylindrical tank with a large diameter is filled with water to a depth D = 0.310 m. What is the rate at which water flows out, in cubic meters per second
A projectile is launched at an angle of 34^{\circ} above the horizontal. The projectile has a mass of 1.50 kg and is given an initial speed of 20.0 m/s. What is the initial kinetic energy of the projectile
compare the supply chain practices of two or more different companies in the same industry or similar industries.
A 0.10kg solid rubber ball is attached to the end of a 0.80 m length of light thread. The ball is swung in a vertical circle. Point p, the lowest point of the circle, is 0.20 m above the floor.
At 500°C, the diffusion coefficient of Zn in brass is 4.10-17 m2.s-1. What is the flux of Zn moving down the rod.
A diver makes 0.50 revolutions on the way from a 9.9-m-high platform to the water. find the diver's average angular velocity during a dive
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