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an 80.0 kg skydiver jumps out of a balloon at an altitude of 1000m and opens the parachute at an altitude of 200m. assuming that the total retarding force on the diver is constant at 50.0 N with the parachute closed and constant at 3600 N with the parachute open, what is the speed of the diver when he lands on the ground?
A tungsten target is struck by electrons that have been accelerated from rest through a 76.1-kV potential difference. Find the shortest wavelength of the radiation emitted
A quarterback is asked to throw a football to a receiver that is 32.9 m away. What is the minimum speed that the football must have
An electric field is E = 400 N/C i for x > 0 and E = -400 N/C i for x
find out the magnitude of the gravitational force exerted by one on the other.
Identical point charges of +3.6 ?C are fixed to diagonally opposite corners of a square. Find the sign and magnitude of the third charge
Iron atoms have been detected in the sun's atmosphere, some withmany of their electrons stripped away. What is the net electriccharge (in coulombs) of an iron atom with 26 protons and 10electrons?
A ship sets sail from Rotterdam, The Netherlands, What is the angle of the velocity of the ship relative to the earth in degrees north of east
A block of ice starts from rest on an apartment building's roof, which slopes at 41° below the horizontal. How far from the building does the block strike the ground
An alpha particle (charge +2.0e) is sent at high speed toward a gold nucleus (charge +79e). What is the elctrical force acting on the alpha particle when it is 2.0e-14m from the gold nucleus?
during 9.75 seconds a motorcyclist changes his velocity from v1x -30.3 ms and v1y 13.1 ms to v2x -26.1 ms and v2y
What diameter must a helium filled balloon have to float with neutral buoyancy? The mass of the empty balloon is 2.0g
Kingbird Corporation made a contribution to a qualified charitable organization of $6,300 in cash (not comprised in any of the above items). Determine Kingbird's charitable contribution deduction for the current year.
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