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A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point17.6m below the water level. The rate of flow from the leak is2.9010-3m3/min.
(a) Determine the speed at which the water leaves the hole.
m/s
(b) Determine the diameter of the hole.
consider a 150 ohm and 180 ohm resistor connected in a parallel combination with a 9 volt battery. determine the total resistance of the parallel combination.
calculate the speed of the block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across the capacitor after the dielectric is removed is measured to be 900 V.
A 21.5 µF spherical capacitor is composed of two metallic spheres, one having a radius twice as large as the other, determine the volume of this region
A wave source generates circular waves that spread out from it on the surface of a pond. The wavelength of these waves is 6.00 cm. (a) At some instant a crest is passing point A.
How many electrons must be removed from each of two 4.4-kg copper spheres to make the electric force of repulsion between them equal in magnitude to the gravitational attraction between them?
A 17.00{\rm kg} lead sphere is hanging from a hook by a thin wire 3.30{\rm m} long, What must be the minimum initial speed of the dart so that the combination makes a complete circular loop after the collision
A movie camera with a (single) lens of focal length 85 mm takes a picture of a person standing 35 m away. what is the height of the image in millimeters on the film
Calculate the minimum required initial velocity for a home run, for baseballs hit at the angles 10 degree, 20 degree, 30 degrees, and 40 degrees from the horizontal
An airplane is flying through a thundercloud at a height of 2 km. There are charge concentrations of 30 C at height 3 km at the top of the cloud and -30.0 C at a height of 1km, What is the electric field E within the cloud
A 2.50-g bullet travelling at a speed of 425 m/s, strikes the wooden block of a ballistic pendulum, such as that Figure in 7.12. The block has a mass of 215 g. Calculate the speed of the bullet/block combination quickly after the collision.
A long horizontal wire carries a current of 48 {rm A}. A second wire, made of 2.6 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 {rm cm} below. Examine the magnitude of the current in the lower wire.
A 144-g baseball moving 29m/s strikes a stationary 5.25-kg brick resting on small rollers so it moves without significant friction. Determine the baseball's speed after the collision
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