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An opening of area 0.264 cm2 in an otherwise closed beverage keg is 48.4 cm below the level of the liquid (of density1.05 g/cm3) in the keg. Find the speed of the liquid flowing through the opening if the gauge pressure in the air space above the liquid is
(a) zero and
(b) 0.451 atm?
An ac source is connected to a resistor R = 75?, an inductor L = 0.01 H, and a capacitor C = 4 ?F. What is the phase difference ? between the voltage of the source and the current in the circuit when the frequency of the source is equal to half the r..
A house has a volume of 450 m3. The air-conditioning system is designed to replace the air in the house every hour, The air in the ducts flows at 5.0 m/s, find the width of the ducts
The dry weight of a man is 845 N. When he is submerged underwater, the reading on the scale is only 43.2 N. What is the density of the man
You measure the length of a distant car to be subtended by an angular distance of 1.0 degrees. approximately how far away is the car
Two objects with masses of 4.00 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley. Determine the tension in the string. Determine the acceleration of each object.
A gymnast of mass 59 hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and presume that the rope does not stretch. Utilize the value for the acceleration of gravity.
A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 192 N and is 3.1 m long. What is the tension in each rope
Two identical cars (m = 1350 kg) are traveling at the same speed of 18.9 m/s. What is the magnitude of the total momentum of the two cars
An air bubble inside an 8.70 cm -diameter plastic ball is 3.00 cm from the surface. how far beneath the surface does the bubble appear to be
A pulley cable system on a construction site lifts 20,000 N concrete block to a height of 40 m. If this takes 2 minutes what is the power of the pulley cable system
A pulley, with a rotational inertia of3.2×10-3 kg m2 about its axleand a radius of 6.0 cm, is acted on by a force appliedtangentially at its rim. The force magnitude varies in time as F =0.58t + 0.24t2, where F is in newtons if t is given insecond..
A bomb is dropped from an airplane in level flight at a speed of 970 km/h. The altitude of the aircraft is 2000 m. At what horizontal distance from the initial position of the aircraft will the bomb land.
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