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A photographer in a helicopter ascending vertically at a constant rate of 14 m/s accidentally drops a camera out the window when the helicopter is 65 meter above the ground.
a) Find how long will it take the camera to reach the ground?
b) Determine what will its speed be when it hits?
The angular momentum of a flywheel having a rotational inertia of 0.100 kg·m2 about its central axis decreases from 3.00 to 0.400 kg·m2/s in 0.80 s. What is the average power of the flywheel
A large tower clock like Big Ben, the Parliment Clock in London, has an hour hand 2.70 m long with a mass of 54.5 kg, Calculate the total rotational kinetic energy of the two hands
Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. What is Sam's top speed
A cylindrical capacitor has an inner conductor with a radius of 2.1mm and an outer conductor with a radius of 3.1mm. Find the charge (magnitude and sign) on both conductors
A uniform solid disk with a mass of 40.0 kg and a radius of0.149 m is free to rotate regarding a frictionless axle. Forces of 90.0and 125 N are applied to the disk, as the figure demonstrates.
What is the wavelength of the light in the glass
a soccer ball is kicked from the ground with an initial speed of 21.0 ms at an upward angle of 45deg. a player 58.0 m
a fugitive tries to hop on a freight train traveling at a constant speed of 5.0 ms. just as an empty box car passes him
A 1.00 multiplied by 103-kg Toyota collides into the rear end of a 2.2 multiplied by 103 kg Cadillac stopped at a red light. The bumpers lock, the brakes are locked.
Compute the linear momentum and angular momentum of a Frisbee of mass 0.144 kg if it has a linear speed of 1.75 m/s and an angular velocity of 64.0 rad/s
A car starts from rest and moves around a circular track of radius 80.0 m. What angle ( in radians ) does the net acceleration make with the car's velocity at this time
A runner covers one lap of a circular track 40.0m in diameter in 63.5s a) average speed for that lap? b) average velocity for that lap? c) If she covered the first half-lap in 28.6s , what was her average speed for that half-lap?
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