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A 5.0 g bullet leaves the muzzle of a rifle with a speed of 320 m/s. Find what force is exerted on bullet while it is traveling down the 0.82-m-long barrel of the rifle?
A uniform 450N and 7m long ladder rests against a smooth wall making a 30degree angle with wall. A 750 N man can climb up to 2.75m up the ladder before it begins to slip. what is the frictional force on the ladder on the floor
A diverging lens by focal length of -30cm is placed 15cm behind a converging lens with a focal length of 20 cm. Where will an object at infinity be focused and what is the right race tracing?
The Earth has a static electric field almost everywhere on the surface of about 100 V/m, pointed downward, called the "Fair weather field". Calculate the total charge induced on the Earth's surface
The coefficient of static friction between the sole of an athletic shoe and the basketball court floor is 0.67. how large is the friction force exerted by Ken's shoes on the floor
The system is released from rest, and the string moves without slipping over pulley. If the larger mass is traveling at a velocity of 2.25 m/s when it has dropped 1m, how much mechanical energy was lost due to friction in the pulley's axle.
a capacitor is charged to a potential of 12.0v and is then connected to a voltmeter having an internal resistance of
a square loop of dimensions 2a x 2a lies in the xy plane with its center at the origin and sides parallel to the x and
At what height above the earth is the acceleration due to gravity 20.0% of its value at the surface
a salesman can contact either one or two customers per day with probability 13 and 23 respectively. each contact will
a spherical conductor of radius 7.00mm carries a surface charge density of 9.00 microC/mm2. How much stored energy is there between the spheres
With what minimum speed must you toss a 100 g ball II str aig ht up to just barely hit the I O-m-high ceiling of the gymnasium, With what speed does the ball hit the floor
An isolated container holding 30 g of hydrogen gas is at 25degrees C. If 1,000 calories were transferred to the gas, what would be the new temperature of the gas
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