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A drinking fountain shoots water out from a height of 3.5cm above its basin. The water follows an arc which extends 15 cm horizontally before hitting the basin. The arc reaches a maximum height of 11cm above the basin. Determine the time a single drop spends in the air? The initial speed of the water and angle at which it shot out of the fountain?
Starting from rest, a 98 kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 800N, and his speed at the bottom of the pole is 3.2 m/s. How far did he slide down the pole.
The cord is then pulled from below, shortening the radius of the circle in which the block revolves to 0.10 . At this new distance, the speed of the block is observed to be 3.50. Explain by how much work was done by the person who pulled on the cor..
What is the y component (in Newtons) of F
According to the law of universal gravitation, what will happen to Earth if the Sun were somehow replaced by the black hole of same mass.
A coin with a diameter of 3.00 cm rolls up a 30.0 degree inclined plane. The coin starts with the initial angular speed of 60.0 rad/s and rolls in a straight line without slipping. How far does it roll up the inclined plane.
What is the mass of the rim.
The flash of a digital camera totally consumes the energy of an arrray of identical 7 F capicitors when a picture is taken, How many capicitors are in the array
If the electric field has a magnitude of 450 and the magnetic field has a magnitude of 0.19 , illustrate what speed must the particles have to pass through the selector undeflected?
A 27.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 35.0° with the vertical, Neglecting friction, find the child's speed at the lowest position
An object has a kinetic energy of 267 J and a momentum of magnitude 21.7 kg•m/s. Find out the speed and the mass of the object.
A meter stick, sitting on a frictionless table top, is struck by a wad of clay with a force, F = 4.0 N at an angle. The meter stick will rotate in the plane of the table. Conclude the magnitude of the torque about the axis of rotation located at t..
A hunter aims directly at a target (on the same level) 101m away. If the bullet leaves the gun at a velocity of 203m/s, by how much will it miss the target.
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