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A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.700m^3 and the tension in the cord is 890 N .
A. Calculate the buoyant force exerted by the water on the sphere.
B. What is the mass of the sphere?
C. The cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will be submerged?
Two small beads having positive charges24qandqare fixed at the opposite ends of a horizontal insulating rod, At what position is the third bead in equilibrium
A block of ice weighs 100 N. You can lift the block vertically a distance of 2 m. You can also push the same block up a ramp that is 4 m long, What is the increase in the block's gravitational potential energy in each case
If the trough is being filled with water at the rate of 0.3 m3/min explain how fast is the water level rising when the water is 10 cm deep?
A hollow ball with mass 0.50kg and radius 10cm rolls down a 3.0m high ramp without sliding.What is the maximum hight that the ball reaches?
The wave function for a certain electromagnetic wave is given by E = -(2500V/m)cos(9.973x10^6z - 2.992x10^15t)i, what is the intensity of the electromagnetic wave
A spring is attached to the bottom of an empty swimming pool, Determine the percentage of the block's total volume that is hollow
A 5.4 ball hangs from a steel wire 1.80 in diameter and 6.00 long. What would be the speed of the wave in the steal wire
The car's motion can be divided into three different stages: its motion before the driver realizes he's late, its motion after the driver hits the gas (but before he sees the police car), and its motion after the driver sees the police car. Which of ..
A cylinder 0.150 in diameter rotates in a lathe at 620. What is the tangential speed of the surface of the cylinder
An observer inside the building notices that it takes 0.15s for the tile to pass her window, whose height is 2.20m. How far above the top of this window is the roof.
The trustee made distributions of $8,400 to Linda and $16,000 to Lucy. The trust and both beneficiaries are cash basis, calendar year taxpayers. Calculate the trust's accounting income.
Three resistors with values 1.0 , 2.2 , and 5.5 , respectively, are connected in parallel in a circuit with a 5.0 V battery. What is the total equivalent resistance
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