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A piece of ice with a mass of 30 grams at 0° C is added to 100 ml of water at 20° C. Assuming no loss of heat to the surroundings, what is the situation when equilibrium is reached?
A 3.0-kg cylinder falls vertically from rest in a very tall, evacuated tube 20m above the surface of the earth. what is the cylinder's initial potential energy
A popular pastime is to see who can push an object closest to the edge of a table without its going off. If the coefficient of kinetic friction is 0.400, what was the object's speed as you released it
the electric field between the plates of a parallel-plate capacitoris horizontal, uniform and has a magnitude E. A smallobject with a charge of -2.60 μC isattached to the string. Assume that the tension in the string is0.0350 N, and the angle it m..
Light of wavelength 730 nm illuminates a pair of slits separated by 0.200 mm. determine the distance between the first and second dark fringes
Derive the algebraic equations for the coordinate curves and coordinate surfaces in pherical polar coordinate systems
In a cathode-ray tube electrons are projected horizontally at 1.5x10^6m/s and travel a horizontal distance 11.0cm across the tube. How long are the electrons in flight? Find the vertical distance the electrons fall (under the influence of gravity) du..
A block of solid water (m = 12g, Ti = -5 degress C) is placed as ammo inside a spring loaded cannon. The spring in this cannon has a stiffness of k = 20,000 N/m and is compressed by 1 m. by what percent has the block melted
In an action movie, the heroine is supposed to jump with a motorcycle from the roof of one skyscraper to another one. what minimum initial speed would she need to make the jump
A boat has a mass of 6800 kg. Its engines generate a drive force of 4050 N, due west, while the wind exerts a force of 860 N, What is the magnitude and direction of the boat's acceleration
A family goes on vacation for one week, but forgets to tun off an electric fan that consumes electricity at the rate of 200 Watts. how much does it cost to run the fan during this time
The potential difference between the plates of a capacitor is 145 V. Midway between the plates; a proton and an electron are released. The electron is released from rest.
A grating with 504 lines/mm is illuminated with light of wavelength 305 nm. What is an angular separation between the two lines formed in order m = 2.
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