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The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 9.96 m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water?
A 34cm -tall, 6.0cm -diameter cylindrical beaker is filled to its brim with water. What is the downward force of the water on the bottom of the beaker
A 45kg figure skater is spinning on the toes of her skates at 0.50rev/s . Her arms are outstretched as far as they will go. In this orientation, What is her new rotation frequency, in revolutions per second
Suppose 47.5 cm of wire is experiencing a magnetic force of 0.7 N. What is the angle in degrees between the wire and the 1.25 T field if it is carrying a 6.5 A current
A submarine dives to a depth of 157 feet in the ocean. What is the force (in pounds) acting on a hatch
When the afternoon Sun reaches an angle of 27.0° above the horizon, sunlight ceases to illuminate the bottom of the tank. Evaluate how deep is the tank?
A piston, A, has a diameter of 0.74cm. A second piston, B, has a diameter of 2.6 cm. In the absence of friction, determine the force, F, essential to support the 539.7 N weights. Answer in units of N.
A 20.0- rock is sliding on a rough, horizontal surface at 8.00 and eventually stops due to friction. What is the total work they do on the supertanker
Two magnetic air pucks are approaching each other for a glancing blow. This time one of the pucks will have an additional mass (lead collar). estimate the mass of the collar if the mass of the puck itself is 0.199 kg and the mass of the second puck..
A student pushes a 60 kg couch across a carpet at a constant velocity. find the magnitude of the force of the student on the couch
The current in a series circuit is 6.0 A. When an additional 17.0 resistor is inserted in series, What is the resistance in the original circuit
A potter's wheel, a thick stone disk of radius .297 m and mass 109 kg, is freely rotating at 57.5 rev/min. Find the effective coefficient of kinetic friction between the wheel and wet rag
Two converging lenses, each of focal length 13.4 cm, are placed 62.8 cm apart, Where is the final image relative to the second lens formed
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