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A small circular hole 6.90 mmdiameter is 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
The amplitude of the electric field of an electromagnetic wave is 197 V/m.
An engine absorbs 1698 J from a hot reservoir and expels 1205 J to a cold reservoir in each cycle. How much work is done in each cycle
Two balls undergo a perfectly elastic head-on collision, with one ball initially at rest. If incoming ball has a speed of 200 m/s. What is the final speed of the incoming ball if it is much more massive than stationary ball.
Consider the video tutorial you just watched. Suppose that we repeat the experiment, but this time we replace the original 56- magnet with a more powerful magnet of the same mass.
Each of the following objects has a radius of 0.174 m and a mass of 2.79 kg, Find the magnitude of the angular momentum of each object
Two long parallel wires carry currents of 20 A and 5.0 A inopposite directions. The wires are separated by 0.20 m. What is the magnetic field midway between the two wires?
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
Flywheels are large, massive wheels used to store energy. They can be spun up slowly, How much energy is stored in the flywheel
A skier wears a jacket filled with goose down that is 15 mm thick. Another skier wears a wool sweater that is 7.00 mm thick. Both have same surface area.
Calculate the force a piano tuner applies to stretch a steel piano wire 7.70 mm, if the wire is originally 0.850 mm in diameter and 1.30 m long
An apple weighs 1.17 N. When you hang it from the end of a long spring of force constant 1.56 N/m and negligible mass, it bounces up and down in SHM. What is the unstretched length of the spring
A novice skier, starting from rest, slides down a frictionless 41.0 incline whose vertical height is 230.How fast is she going when she reaches the bottom.
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