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A 12.0 kilogram shell is launched at an angle of 55o above the horizon with an initial velocity of 150 m/s. When at its highest point, the shell explodes into 2 fragments - 1 fragment is 3 times heavier than the other. The 2 fragments reach the ground at the same time, neglect air resistance. If the heavier fragment lands back at the same point from which the shell was launched, where will the 2nd fragment land and compute how much energy was released by the explosion?
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons, How many electrons are there in 1.79 liters of water
approximately how far does it move while stopping? Express your answer to one significant figure and include the appropriate units.
a 1000kg car experiences a total power of 150hp (horsepower) if it starts from rest what is the magnitude of the velocity of the car in miles per hour 10s later
A metal block of mass 1.220 kg is hanging from a string. The tension in the string is 7.712 N. The block is submerged in a beaker of fluid and is stationary. What is the magnitude and direction of the buoyant force acting on the block? Consider ma..
Two particles are fixed to an x axis: particle 1 of charge q1 = 1.86 x 10-8 C at x = 27cm and particle 2 of charge q2 = -3.63q1 at x = 77.7cm. At what coordinate on the x axis is the electric field produced by particles equal to zero.
A diving board of length L = 3.00m is supported at a point a distance 1.00m from the end, and a diver weighing 530N stands at the free end. Find the force at the end that is held down
A major-league pitcher can throw a baseball in excess of 44.2m/s. If a ball is thrown horizontally at this speed, how much would it drop by the time it reaches the catcher who is 16.10 m away from the point of release.
a hamster gets on a stationary wheel with radius 0.15 m and runs until wheel rotates at angular speed of 12.0 rad/s in 4.0 s What is tangential acceleration of wheel's edge
the place you get your hair cut has two nearly parallel mirrors 7.0m apart. as you sit in the chair your head is 1.5m
A solid cylinder ABCD (radius: 0.150 m, height: 0.120 m) has the mass of 7.00 kg. How much of the height of the cylinder is in the oil
Ice has formed on a shallow pond, and a steady state has been reached, with the air above the ice at -3.5°C and the bottom of the pond at 4.0°C. how thick is the ice
A 300 Kg boat is initially moving at a constant velocity.Suddenly, the boat feels a force due to the wind which is directed45 degrees north of east and has a magnitude of 100 N. After 10seconds, the boat is moving at 5 m/s in a direction 30 degree..
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