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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?
What least heat is needed to bring 80 of water at 20 to the boiling point and completely boil it away? (answere in Joules).
Dan is gliding on his skateboard at 4.00m/s . He suddenly jumps backward off the skateboard, How fast is Dan going as his feet hit the ground
Atomic nuclei have a typical density of about 10^(17) kg/m^3. The density of liquid mercury is roughly 10^(4) kg/m^3. Approximately what fraction of the volume of liquid mercury is empty space between mercury nuclei?
A rollercoaster car has a mass of 600 kg when fully loaded with passengers. what is the force of the track on the car at the top of the hill
A small conductive rod of length 1.4 m moves with a constant velocity v=11 m/s in a direction parallel to a long wire carrying a current of 34 A. Calculate the electric potential induced across the rod
A baseball player runs 27.4meters from the batter's box to first base,overruns first base by 3.0 meters,and then returns to first base. Compared to total distance traveled by the player,the magnitude of the players total displacement from the batt..
A series of small machine components being moved by a conveyor belt passes over a 140-mm-radius idler pulley. At the instant shown, the angular velocity of the idler pulley is 5 rad/s clockwise. If the total acceleration of point B is 2400 mm/s2, wha..
A speedboat moves on a lake with initial velocity vector v1,x = 9.61 m/s and v1,y = -2.71 m/s, Find the speedboats final speed
Obtain grand mean and unadjusted means for the ANCOVA model where covariate, "xc", Treatment, "a", response, "y" are considered and calculate adjusted means given the estimates
A 100 m long solenoid has a radius of 0.050 m and 1.5 x 10^4 turns. Determine the self-induced emf in the solenoid due to the changing environment
Two balls of identical mass of 1.152 kg and with identical charges placed on them hang from the ceiling on identical strings of lengths 1.310 m. If the angle with respect to the vertical that the strings form is 24.5 degrees.
In a heat conductivity experiment, a slab of silicon of thickness 2 x 10^-3m and area of 0.40m^2 seperates condensing steam(lv=540cal/g) at 100 degree C, Find the increase of entropy in the universe during one minute of this experiment
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