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a man in a tree fort 7 m above the ground. He throws a water balloon at a speed of 3m/s at a downward angle of 17 degree below the horizontal at another man 5 m from the base of the tree fort. Does the ball hit the man?
A solid disk of mass M and radius R is pivoted so that it can rotate about its center. The disk is initially at rest. A ball of mass m and speed v travels along a path tangential to the rim of the disk. The ball sticks to the disk and the assembly..
How far south of his starting point will he reach the opposite bank.
A constant force of 15 N in the negative y direction acts on a particle as it moves from the origin to the point (?4i + 3j + 1k) m. How much work is done by the given force during this displacement
An object is released from rest and falls in free fall motion. The speed v of the object after it has fallen a distance y is given by v2 = 2gy, what is the percent uncertainty in the calculated value of g
Ball 1, with a mass of 110 and traveling at 14.0 , collides head on with ball 2, which has a mass of 320and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of each ..
How numerous extra electrons are on this particular oil drop (given the presently known charge of the electron)?
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. determine the voltage drop from cathode to anode
If 5.0 ´ 1021 electrons pass through a 20-W resistor in 10 min, what is the potential difference across the resistor
A military helicopter on a training mission is flying horizontally at a speed of 75.0 when it accidentally drops a bomb (fortunately, not armed) at an elevation of 450 .How much time is required for the bomb to reach the earth? How far does it tra..
When a beam of white light is incident (vertically) on a thin oil slick (n = 1.25) floating on water, What is the thickness of the oil slick
question1 two boxes of equal mass m are placed one on top of each other. in case 1 an applied force acts on box b while
What is the magnitude of the free-fall acceleration of a ball (mass m) due to the Earth's gravity at an altitude of 3R, where R is the radius of the Earth
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