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A copper rod of cross-sectional area 14.5 cm2 has one end immersed in boiling water and the other in an ice-water mixture, which is thermally well insulated except for its contact with the copper. The length of the rod between the containers is 18.4 cm, and the rod is covered with a thermal insulator to prevent heat loss from the sides. How many grams of ice melt each second? (The thermal conductivity of copper is 390 W/m-C°.)
The truncated form of the virial equation is P(VB) = RT , where B is a constant that depends only on temperature. Derive the expression for reversible isothermal work for a gas that obeys this equation of state.
Four identical 7 mC charges are placed on a neutrally- charged penny, Determine the resulting potential in the center of the penny due to the four charges
The current through a 908 ohm resistor is 189 mA; to the nearest volt, what is the potential difference across the resistor
On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short distance. How large is the force that the catapult must exert on the jet
The arm of a person weighs 41.5N, which acts at the center of mass that is located 29.0cm from the rotation point in the shoulder. What is the force required by the deltoid muscle, Fd, to hold the arm parallel to the floor
A 3.00-m-long, 400 kg steel beam extends horizontally from the point where it has been bolted to framework of a new building under construction. A 74 kg construction worker stands at the far end of the beam.What is the magnitude of the torque abo..
What is the minimum rate of rotation, in revolutions per minute, required for the spheres to contact the cylinder wall
As F is enhancement d, the block would either begin to slide, or begin to tip over. What must be the coefficient of static friction ms so that the block begins to slide rather than tip.
A small object is placed to the left of a convex lens and on the optical axis. obtain the position of the image formed by the lens?
The Wall of Death in an amusement park is comprised of a vertical cylinder that can spin around the vertical axis. Find the tangential velocity of the spinning wall
Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. How far is each spectator from the player
A child and sled with a combined mass of 49.20 kg slide down a frictionless hill that is 7.38 m high. If the sled starts from rest, what is its speed at the bottom of hill.
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