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The density of ice is 917 kg/m^3, and the density of sea water is 1025 kg/m^3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m^3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water?
At a distance of 1.41 m from a point charge of +2.74 ?C, how many of the additional equipotential surfaces are crossed by the time the electric field has shrunk to one-half of its initial value
Four or five gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following specific heat capacity data to resolve which block will increase its temperature the most.
A satellite has a mass of 6155 kg and is in a circular orbit 4.76 × 105 m above the surface of a planet. What would be the true weight of the satellite if it were at rest on the planet's surface
A solenoid of radius 3.5 cm has 800 turns and a length of 25 cm. Find the rate at which current must change through it to produce an emf of 90 mV
A 40 cm long tube has a 40 cm long insert that can be pulled in and out. As the insert is slowly pulled out, What is the frequency of the tuning fork
what advantage might there be in using two identical capacitors in parallel connected in series with another parallelpair, rather than using a single capacitor.
question1a 20 rm kg uniform door has a width of 1.2 rm m and a height of 2.5 rm m. the door is mounted on a post by a
A 70.0 football player is gliding across very smooth ice at 2.25 . He throws a 0.470kg football straight forward. What is the player's speed afterward if the ball is thrown at 16.5 relative to the ground
Two satellites are in circular orbits around a planet that has radius 9.00*10^6 m. One satellite has a mass 68.0 kg, What is the orbital speed of the second satellite
Illustrate what is the speed of the three coupled cars after the collision? How much kinetic energy is lost in the collision?
A hockey puck slides over ice with ?k = 0.013. What initial speed should the puck have so it travels the 40m length of the rink
The normal airflow over the Rocky Mountains is west to east. The air loses much of its moisture content and is chilled as it climbs the western side of the mountains. What is its temperature at the end of the descent
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