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A piece of wood of density 936 kg/m3 and volume 1.7m3 is floating in water of density 1000kg/m3. What volume of the wood (in m3) is below the water line?
The small skydiver, weighing 50N, sinks 1.0m into the snow when her parachute does not open, Determine the work done by the snow in stopping the person
A friend is standing on a giant skateboard that is initially at rest. If you avoid frictional effects with the floor, what is the momentum of the skateboard if your friend walks to the right on skateboard with a momentum of 150 kg.m/s? What is the..
A uniform disk with a mass of 775 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
An explosion occurs at the end of a pier. The sound reaches the other end of the pier by traveling through three media: air, fresh water, how much later do the second and third sounds arrive
A 57 kg tightrope walker stands in the middle of a rope. Her weight makes the rope sag, evaluate the rope tension
A block is pushed up an incline. The incline creates an angle of 22.0° with the horizontal. When the block is released, it has an initial velocity of 2.75 m/s. The coefficient of kinetic friction between the block and the inclined plane is 0.450. How..
An equipotential surface that surrounds a point charge q has a potential of 585 V and an area of 1.27 m2. Determine q
A gas, while expanding under isobaric conditions, does 494 J of work. The pressure of the gas is 1.57E+5 Pa, What is the final volume of the gas
A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. What vertical height does the puck reach above its starting point
37.43 J of heat are removed from a gas sample while it is being compressed by a piston that does 23.12 J of work. What is the change in internal energy of the gas
Two masses are placed on the x axis. The first mass 320kg is located at x = 310cm , the second mass 660kg is at the origin
A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward). The rocket's acceleration has components and , where = 2.50 , = 9.00 , and = 1.40 . At the rocket is at the origin and has velocity with = 1.00 and = 7.00 . ..
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