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A backyard swimming pool with a circular base of diameter 7.00 m is filled to depth 2.60 m.
(a) Find the absolute pressure at the bottom of the pool.
(b) Two persons with combined mass 165 kg enter the pool and float quietly there. No water overflows. Find the pressure increase at the bottom of the pool after they enter the pool and float.
A "swing" ride at a carnival consists of chairs that are swung in a circle by L = 14.2 m cables attached at an angle of ? = 62.7° to a vertical rotating pole. Calculate the tension in the cable attached to the chair
A pail of water is rotated in a vertical circle of radius 1.20 m. What is the minimum speed of the pail at the top of the circle if no water is to spill out
The car has just achieved double its initial velocity when the driver spots a police officer behind him and applies the brakes. The car then slows down, coming to rest at the stoplight ahead.
A string of length 1.20 m is vibrating in the 3rd harmonic at a frequency of 93 Hz. What are the positions of all the antinodes on the string
every few hundred years most planets line up on the same side of the sun. calcute the total force on the Earth due to Venus, Jupiter, and Saturn, what fraction of the sun's force on the Earth is this
two horizontal forces and are acting on a box but only is shown in the drawing. can point either to the right or to
determine the average temperature rise of the remains of the cars
Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. A friend throws Olaf a ball of mass 0.400 that is traveling horizontally at 11.5 . Ola..
A 58-kg ice-skater moving at 7.5m/s glides to a stop. Assuming the ice is at 0 degrees Celsius and that 50% of the heat generated with friction is absorbed by the ice, how much ice melts?
In order to overcome a surface tension of a liquid, a force of1.32x10-2N is required to lift a wire ring ofcircumference 12.0cm. What is the surface tension of the liquid?
A plane flies from base camp to Lake A, 280 km in the direction 20.0 degrees north of east. After dropping off supplies it flies to Lake B, which is 190 km at 30.0 degrees west of north from Lake A. Graphically Decide the distance and direction from ..
Two equally charged insulating balls each weigh 0.50 g and hang from a common point by identical threads 30 cm long, What is the magnitude of the charge on each ball
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