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A 0.283-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -17.7 °C. In 3.10 minutes, the ice thickens by a small amount. Assume that no heat flows from the ground below into the water and that the added ice is very thin compared to 0.283 m. Calculate the number of millimeters by which the ice thickens. Do not enter unit.
Water flows out of a large open reservoir through a small pipe that opens to the atmosphere 30 m below the level of the water in the reservoir.
A solid piece of lead has a mass of 29.18 g and a volume of 2.60 cm3. From these data, calculate the density of lead
A singly charged positive ion has a mass of 1.77 × 10^?26 kg. Find the radius of the ion's path in the field
Two metal spheres, each of mass 20 g and initially at rest, are dropped from a height of 9 m in an evacuated chamber. Find the difference in final speeds of the two spheres
A uniform electric field of magnitude 2500N/C makes an angle of 27 degrees with a plane surface of area 0.355 m2. what is the net charge inside the box
A gunman standing on a sloping ground fires up the slope. The initial speed of the bullet is v0= 390 m/s. Find the maximum rangeof the bullet along the slope
An electron moving parallel to the x axis has an initial speed of 3.70x10^6 m/s at the origin. Calculate the potential difference between the origin and that point.
A resistance R and a 1.5-H inductance are in series across a 60-Hz ac voltage. What is the ac input voltage
compare and contrast the processes of fusion and fission. describe the challenges in harnessing fusion technology for
a crane is lifting a 500 kg payload straight up at a constant speed of 0.7 m/s. What is the power output of the crane
What is the density of Neon gas at standard temperature and pressure? The atomic mass of Neon is 20.18 atomic mass unit
A 400lb woman stands on a floor in flat soled shoes. Which person is more likely to dent the floor
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