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A horizontal pipe 15.00 cm in diameterhas a smooth reduction to a pipe 7.50cm in diameter. If the pressure of the water in the larger pipe is7.50*104 Pa and the pressure in the smallerpipe is 6.00*104 Pa, at what rate does water flow through the pipes?
A 54-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.7 m/s, determine her altitude as she crosses the bar
question1astronomers detect a large asteroid that far away but still heading toward earth at 754 ms. a straight
An accelerating voltage of 2.52 x 10^3 V is applied to an electron gun, What is the magnitude of the deflection on the screen caused by the Earth's gravitational field
A small solid sphere, with radius 0.25 cm and mass 0.56 g rolls without slipping on the inside of a large fixed hemisphere with radius 15 cm, What is its kinetic energy at the bottom
Consider a bright star in our night sky. Assume its distance from Earth is 28.1 light-years (ly) and its power output is 4.00 1028 W, about 100 times that of the Sun. Find the intensity of the starlight at the Earth
An ambulance traveling at 47 m/s approaches a car heading in the same direction at a speed of 37 m/s. At what frequency does the driver of the car hear the siren
A fire hose 10 cm in diameter delivers water at the rate of 22 kg/s . The hose terminates in a nozzle 2.1 cm in diameter. What is the flow speed in the nozzle
A real 90 v battery (one with internal resistance) has a terminal voltage of 80 v when a motor with a resistance of 8 omega is connected to it. how large is the batterys internal resistance
A 10cm diameter circular wire loop carries a current of 2.4A, Find the torque on the loop in a 1.2T magnetic field directed perpendicular to the loop
If you double a blackbody's temperature, by what factor does its radiated power increase
Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt, What is the maximum charge on the dome
How many revolutions per minute would a 29 {rm m}-diameter Ferris wheel require to make for the passengers to feel "weightless" at topmost point.
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