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An Olympic pool has dimensions 50.0 m × 25.0 m × 2.68 m (length × width × depth). The density of the pool water is 1007 kgm3. Atmospheric pressure (1.00 atm) is acting on the surface of the water.
If a child dives down to the bottom of the pool, determine what pressure is exerted on the child?
In a slow pitch softball game, a .200 kgsoftball crosses the plate at 15.0 m/s at an angle of 45 degreesbelow the horizontal. what is the maximum force on the ball
According to recent test data, an automobile travels 0.250 mi in 19.9 s, starting from rest. The same car, when braking from 60.0 mi/h on dry pavement, stops in 146 ft. Find the acceleration of this car when it is speeding up
Nichrome wire of cross-sectional radius 0.758 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
The power brick for the author's laptop computer has a power rating of 60 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.
The balloon is filled with helium at a density of 0.181 kg/m3. At this density the balloon is spherical with a radius of 0.400 m. If the filled balloon is fastened to a vertical line,
A toy cannon uses a spring to project a 5.23 g soft rubber ball. The spring is originally compressed by 4.90 cm and has a force constant of 8.04 N/m. At what point does the ball have maximum speed
Calculate the force required to hold a long bow with the string pulled back just before releasing the arrow
wheel rotating about a fixed axis has an angular position given by , where q = 3 - 2t^3 tis measured in radians and t in seconds
An archer pulls her bowstring back 0.430 m by exerting a force that increases uniformly from zero to 232 N. What is the equivalent spring constant of the bow
A movie camera with a (single) lens of focal length 95 mm takes a picture of a person standing 28 m away. what is the height of the image in millimeters on the film
A 10-turn square coil of area 0.036m2 and a 20-turn circular coil are both placed perpendicular to the same changing magnetic field. What is the area of the circular coil
What is the total negative charge, in Coulombs, of all the electrons in a small 0.750 g sphere of carbon
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