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King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 42 m/s and an angle of 26°. A cannonball that was accidentally dropped hits the moat below in 1.2 s.
How far from the castle wall does the cannonball hit the ground?
What is the ball's maximum height above the ground?
a clay vase on a potters wheel experiences an angular acceleration of 7.15 rads2 due to the application of a 14.1-n m
If the temperature is the same at the surface of the lake and at a depth of 20.0m below the surface , what is the height of the cylinder of air in the bucket when the bucket is at a depth of 20.0m below the surface of the lake
the girl(mass 40kg) is pulling the sled(mass 10Kg) on the frictionless ice. what is the acceleration of the girl
A motorist speeds horizontally of a 50.0 meter high cliff. If the motorist wants to land on level ground below 90.0 m form the base of the cliff. how fast must he motorcycle leave the cliff top to make this landing
Two identical conducting spheres, fixed in place, attract each other with a force of 0.094 N when their center to center separation is 60.00 cm. What was the initial negative charge on one of the spheres
A 7 kg sled is initially at rest on a horizontal road. determine the change in the kinetic energy of the sled
A wooden raft has a mass of 55 kg. When empty it floats in water (density 100 kg/m^3 with 64% of its volume submerged. What mass of sand can be put on the raft without it sinking
A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providing a steady force of 184 N that is parallel to the motion of the sled.
Water flows through a fire hose of diameter 5.49 cm at a rate of 1.2 x10-2 m3/s. The fire hose ends in a nozzle of inner diameter 2.11 cm. What is the velocity with which the water exits the hose?
A man can clearly see an object that is 2.00 m away(or more) without using his eyeglasses. how close can an object be to the eyeglasses and still be clearly seen by the man
The track is 400 meters lonf and linear. Car A accelerates at 3 meters per second and Car B accelerates at 3.1 meters per second. How far behind is Car A when Car B passes the finish line
questionan elevator of mass 2268 kg rest at a level of 7.62 m above a base of elevator shaft. it is raised to 76.2 m
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