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In a specific heat experiment, 200 g of aluminium (Cp=0.215 cal/g.C) at 1000C is mixed with 50 g of water at 20C. Find the difference in entropy of the system at the end from its value before mixing? (please explain)
The only force on a 4.0-kg body as it moves along the x axis is given by F(subscript "x") = (14 - 6.1x) N, What is the maximum kinetic energy attained by the body
A loudspeaker of mass 25.0 is suspended a distance of = 2.20 below the ceiling by two cables that make equal angles with the ceiling. What is the tension in each of the cables
Two point charges are located on the y-axis as follows: one charge q1 = -1.85nC located at y=-0.585m , and a second charge q2 = 3.10nC at the origin (y=0). what is the direction of the total force
What Current densities would produce the vector potentials A = ks^n in the phi direction (where k is constant and n is integer) in cylindrical coordinates? Are there any n values which cannot be connected to a current density?
A fish is able to jump vertically out of the water with a speed of 4.76 m/s. What is the speed of the fish
The drawing shows a coin resting on the bottom of a beaker filled with an unknown liquid. How fast is the light traveling in the liquid
The intensity of sunlight hitting the Earth is about 1300 W/m^2. Find amplitude of the electric field
A ladder (L = 7.60 m) of weight WL = 360 N leans against a smooth vertical wall. What is the minimum value for the coefficient of static friction between the ladder and the ground
The top of the pool table is 3.05 ft from the floor. The placement of the tape is such that 0 feet aligns to the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph...
Two different wavelengths of monochromatic light are projected through the same double slit. First a 490 nm light is projected, calculate the unknown wavelength
A speeder is pulling directly away and increasing his distance from a police car that is moving at 27 m/s with respect to the ground. Find the speeder's speed with respect to the ground
The quartz tube is actually 921mm long × 15mm diameter ... use the tube circumference and length to: estimate the light's maximum Electric Field , at the outside of the tube
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