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One end of an insulated metal rod is maintained at 100 and the other end is maintained at 0.00 by an ice-water mixture. The rod has a length of 80.0 and a cross-sectional area of 1.20 . The heat conducted by the rod melts a mass of 9.70 of ice in a time of 15.0. Find the thermal conductivity of the metal.
In the Blackhawk landslide in California, a mass of rock and mud fell 465 m down a mountain and then traveled 8.3 km across a level plain. How fast was it traveling when it reached the bottom
A diving board length = 5.40 that weighs 230 is supported by two pillars. One pillar is at the left end of diving board; the other is distance = 1.60 away. Determine the magnitude of the force exerted by the left pillar while a 90.0 diver stands a..
In order for Sasha (in A-5) to feel weightless at the top of the ride, a) at what linear speed must the Ferris wheel tum? b) At this speed, how much would she appear to weigh at the bottom of the Ferris wheel.
The speed of an alpha particle is determined to be 1.55×106 m/s. what is the magnitude of that potential
A homer run is hit in such a way that the baseball just clears a wall 14m high, located 122m from home plate. find the speed of the ball when it reaches the wall
If the magnitude of vector A is 10.0 m and that of vector B is 12.5 m, what is the range of values allowed for the magnitude of the sum of A and B?
A 57.5 kg skateboarder starts out with a speed of 1.75 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. How much has the vertical height of the skater changed
A 4.0-kg object has a velocity of 4.0 m/s headed east. An explosion causes it to break up into two smaller 2.0-kg objects. what is the velocity of the other object after the explosion
A cylindrical glass of water (H2O) has a radius of 4.61 cm and a height of 12.5 cm. How many moles of water molecules are contained in the glass
Two positive point charges, each 17? C, lie along the x-axis at x = –0.12m and x = +0.12m.
I have a rectangular slab of aluminum that is in contact with a rectangular slab of copper and both slabs are 5.00 cm x 15.0 cm in area. how much energy would flow from one face to the other
A wall is composed of two materials, material 1 has a thickness of 3.49 cm and a thermal conductivity of 0.1 J/msCo while material two has a thickness of 7.01 cm, what is the energy loss per second to the nearest watt
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