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In an adjustable nozzle for a garden hose, a cylindrical plug is aligned in the direction of the hose and can be inserted into the hose opening. The use of the plug is to change the speed of the water leaving the hose. The speed of the water passing around the plug is to be 5.59 times larger as compared to the speed of the water before it encounters he plug. Compute the ratio of the plug radius to the inside hose radius.
q1. the driver of an 1800 kg car travelling on a horizontal road at 100 kmh suddenly applies the brakes. because of a
The blue line of the hydrogen emission spectrum has a wavelength of 433.9 nm. Calculate the energy of one photon of this light
A 3.7 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket of water
A soldier pushes a crate of boxes (mass 12.0kg) with a force=155N parallel to the tarmac, Calculate the work due to the gravitational attraction force on the boxes in pushing the box 4.50 up the incline
Identical objects are located at the same distance from two spherical mirrors, A and B. Find the ratio fA/fB of the focal lengths of the mirrors
A kicker punts a football from the very center of the field to the sideline 36 yards downfield. What is the direction of the net displacement of the ball
A cart has a mass of 851.8 g the attached string has a tension of 0.36 N and a displacement of 40.9 cm. what is the kinetic energy of the cart
The racket is a potential-energy barrier whose height is the energy of the slowest string-breaking ball. Suppose that a 100 g tennis ball traveling at 220mph is just sufficient to break the 2.0-mm-thick strings.
Two children stand on opposite sides of a merry-go-round of diameter 6.0 m, Calculate the magnitude of the Coriolis force acting on the moving ball due to the rotation of the merry-go-round
A 24V battery is connected in series with a resistor, R=4 ohms and an inductor L=2H. What is the energy stored in the inductor
A 0.80-kg book moves verticallyupward a distance of 17 m, andthen vertically downward 17 m,returning to its initial position. How much work is done by gravity during the upward motion of the book?
A conductive loop of radius r = 1.0 cm falls towards a stationary solenoid of 100 turns per cm carrying a current of I = 2.00 A. What is the direction of the current induced in the loop
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