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A small circular hole 6.90 mm diameteris cut in the side of a large water tank, 19.0 m below the water level in the tank. The topof the tank is open to the air.
(a) Find the speed of efflux.
m/s
(b) Find the volume discharged per unit time.
m3/s
A beam of light strikes a sheet of glass at an angle of 57.0deg. with the normal in air. You observe that red light makes an angle of 38.1 degrees with the normal in the glass, What are the speeds of red and violet light in the glass
The maximum current in a 26?F capacitor connected to an ac generator with a frequency of 110Hz is 0.15 A. What is the maximum voltage of the generator
A student with a mass of 70 kg sits in a roller coaster that has a vertical loop of radius r=20 m. what is the Normal force exerted by the seat on the student at the bottom of the loop
A major-league catcher gloves a 92 {rm mi}/{rm h} pitch and brings it to rest in 0.15 {rm m}.If the force exerted by the catcher is 803 {rm N}, what is the mass of ball.
Some good estimates about the human body can be made if it is assumed that we are made mostly of water. estimate the number of water molecules in that person
Consider a Boeing 777-200 airplane of wing span 60.93 m cruising horizontally at Mach 0.785, Find the emf induced across its wing
a certain second-order reaction has a rate constant of 1.10times10-3 at 27 and an initial half-life of 226. what is
Consider the circuit Take = 6.00 V, L = 8.00 mH, and R = 4.00. What is the inductive time constant of the circuit
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -1.0799 N when separated by 50 cm, center-to-center. What were the initial charges on the spheres
If an electron (e=-1.6*10^-19C) is placed at the distance of 2m away, how much energy is required to move it essentially out of this potential field
A symmetric double convex lens with a focal length of 25.0cm is to be made from glass with an index of refraction of 1.53. What should be the radius of curvature for each surface
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 6.44 10-2 kg/s. What is the speed at which the gasoline moves through the fuel line
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