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A bullet of mass mb = 0.02 kg is moving with a speed of 100 m/s when it collides with a rod of mass mr = 5 kg and length L = 2 m. The rod is initially at rest, in a vertical position, and pivots about an axis going through its center of mass. The bullet imbeds itself in the rod at a distance L/4 from the pivot point and, as a result, the bullet-rod system starts rotating. What is the angular speed (in rad/s) of this rotation? Hint: you may treat the bullet as a point mass.
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is P1 = 2.00 104 Pa, Find the speed of flow in the upper section
In the figure, suppose that the separation between speakers A and B is 5.90 m and the speakers are vibrating in phase. They are playing identical 110-Hz tones, and the speed of sound is 343 m/s.
A bullet of mass 5.2 g is fired horizontally into a 7.1 kg wooden block at rest on a horizontal surface. At what speed is the bullet fired
A ball rolls off the edge of a table with a horizontal velocity v m/s. What is the initial speed of the ball
A plastic bag is filled with nitrogen at atmospheric pressure and 27.0 oC. If hot air is used instead of nitrogen, what is the required volume of the balloon if the air inside can be maintained at 39.0 oC
A box with a total surface area of 1.11 m2 and a wall thickness of 3.1 cm is made of an insulating material. Find the thermal conductivity of the insulating material
define the initial velocity of the ball.
the total volume of a new house is 800 m3. before the heat is turned on the air temperature inside is 10degc and the
A major-league pitcher can throw a baseball in excess of 48.7m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 15 m away from the point of free.
When the cannon is fired, the ball moves 15.3 cm through the horizontal barrel of the cannon, and there is a constant frictional force of 0.0322 N between the barrel and the ball. Illustrate at what point does it have its max speed?
consider a model rocket that is lunched in a vertical direction. Nelected air resistance and changes in its mass , m. determine the mamimum alttiude
A tennis player swings her 1000g racket with a speed of 10m/s . She hits a 60g tennis ball that was approaching her at a speed of 21m/s. what is the average force that the racket exerts on the ball
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