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A rookie quarterback throws a football with an initial upward velocity component of 15.2 meter per second and a horizontal velocity component of 18.1 m/s. Neglecting air resistance.
Part A Determine how much time is required for the football to reach the highest point of the trajectory?
Part B Calculate how high is this point?
Part C Determine how much time (after it is thrown) is required for the football to return to its original level?
Part D Determine how does this compare with the time calculated in part (a).
Part E Find how far has it traveled horizontally during this time?
As well, the barbell rotates clockwise about its own center, with an angular speed 80 rad/s.
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 3.87 Ã- 10â€"14 J/m3
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An optical disk drive in your computer can spin a disk at up to 10,000 rpm. If a particular disk is spun at 8690 rpm while it is being read, what is the magnitude of the linear acceleration of a point 1/11 of the way out from the center of the disk
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A ball is thrown horizontally from the top of a 20-m high hill. It strikes the ground at an angle of 45 degrees. With what speed was it thrown?
Walking by a pond, you find a rope attached to a tree limb 6.0 m off the ground. You decide to use the rope to swing out over the pond. What is the maximum safe initial angle between the rope and the vertical so that it will not break during the swi..
the cheetah is one of the fastest accelerating animals for it can go from rest to 32.3 ms in 3.52 s. if its mass is 120
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