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A man dives off a cliff 28.8 m high into a pool below such that his horizon velocity is 60m/s and vertical velocity is zero. How long does he take to reach the water and how far out from the edge of the cliff does he fall into the pool?
an automobile and a truck start from rest at the same instant with the automobile initially at some distance behind the
What is the Acceleration of an object moving on a circular track
A roller-coaster car has a mass of 492 kilogram when fully loaded with travelers. If the car has a speed of 20.3 m/s at point A, find the force exerted by the track on the car at this point
Imagine for a moment that the moon is held in its orbit about the earth by electrical forces rather than by gravitation. What is the necessary electrical charge -Q that would be on the earth and +Q that would be on the moon to hold the moon in a circ..
Running on a treadmill is slightly easier than running outside because there is no drag force to work against. What is this force as a fraction of the runner's weight
The red line of the Balmer series in hydrogen (A = 656.5 nm) is observed to split into three spectral lines with A = 0.040 nm between two adjacent lines when placed in a magnetic ?eld B. What is the value of B if A is due to the energy splitting ..
Two buckets of sand hang from opposite ends of a rope thatpasses over an ideal pulley. One bucket is full and weighs 120 N;the other bucket is only partly filled and weighs 63N.
Does time dilation mean that time actually passes more slowly in moving reference frames or that it onlyseems to pass more slowly? Time in both systems passes in the samemanner.
A Carnot engine has an efficiency of 0.361, and the temperature of its cold reservoir is 406 K. (a) Determine the temperature of its hot reservoir. (b) If 5950 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine..
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.
A photographer in a helicopter ascending vertically at a constant rate of 15.0m/s accidentally drops a camera out the window when the helicopter is 60.0m above the ground. How long will the camera take to reach the ground
Let's assume you sent an idealized pulse of 337 nm light (from the N2 laser) with zero temporal width into the fiber. Calculate the minimum and maximum flight times using ray approximations and thereby report the broadening due to the fiber geomet..
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