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A ball is launched at 21.9 m/s at an angle of 25 degrees above the horizontal from the top edge of a building 55.7 m high. How far from the edge of the building does the ball land and what is its speed when it hits the ground?
A stockroom worker pushes a box with a mass 11.2kg on a horizontal surface with a constant speed of 3.50m/s. coefficient of kinetic friction between the box and the surface is 0.20.
A 1600 kg car traveling eastward at 32 m/s collides at an intersection with a 700 kg motorcycle traveling northward at 45 m/s. What is the direction of the car's velocity after the collision
Two objects moving with a speed v travel in opposite directions in a straight line. The objects stick together when they collide, and move with a speed of after the collision. What is the ratio of the final kinetic energy of the system to the initial..
On a warm day (86?F), an air-filled balloon occupies a volume of 0.250m3 and has a pressure of 18.0lb/in2, what is the volume of the air in the container
The engine of a model rocket accelerates the rocket vertically upward for 2.0 s as follows: At t = 0, the rocket's speed is zero; at t = 1.0 s, determine the instantaneous acceleration of the rocket at t = 1.5 s
The 54-MW wood-fired McNeil Generating Station in Burlington, Vermont, produces steam at 950 ?Fto drive its turbines, Find McNeil's maximum thermodynamic efficiency
One afternoon, a couple walks five-sixthsof the way around a circular lake, the radius of which is1.70km. What are the magnitude and direction (relative to due east) ofthe couple's displacement
A circular saw blade completes 1200 revolutions in 40 rm s while coasting to a stop after being turned off. Assuming steady deceleration, what are (a) angular deceleration and (b) initial angular speed.
On a workday the average decibel level of a busy street is 85 dB, with 100 cars passing a given point every minute. what is the decibel level of the street
A 2.00 kg steel ball strikes a massive wall at 15.0 m/s at an angle of 60.0 degrees with the plane of the wall. compute the average force exerted by the wall on the ball
Electrons are accelerated through a potential difference of 39.0 V. The beam of electrons then passes through a single slit. estimate the width of the slit
A 5.00 kg block is sliding along a flat surface when it runs into an uncompressed spring with spring constant 352 N/m. The block compresses the spring by 0.185 m before stopping. If the coefficient of kinetic friction between the block and floor is 0..
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