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A helicopter takes off vertically, with a constant speed 25 m/s. While rising,
the pilot releases a cigarette butt at distance 33 m above the ground. How long does it take for the butt to hit the ground? Neglect air resistance.
A ball thrown horizontally at 12.5m/ from the roof of a building lands 20.0mm from the base of the building. How tall is the building
questionexactly 3.0s after a projectile is fired into the air from a flat ground it is observed to have velocity v
two equal-length springs have a stiffness ka300nm and kb200nm are nested together in order to form a shock absorber. if
The best leaper in the animal kingdom is the puma, which can jump to a height of 11.9 ft when leaving the ground at an angle of 53°. With what speed, in SI units, should the animal leave the ground to reach that height?
an astronaut floating in space is separated from his ship. his mass is 85.0kg and he is 10.0m for his ship. he throws a
A coil of wire is connected to an ideal7.00V battery att= 0. Att=10.0ms, the current in the coil is204mA. Find the resistance and inductance of the coil
What is the moment of inertia of flywheel
consider a carousel 32 feet in diameter. this carousel takes 11 s to accelerate from rest to its operating speed of
Determine the magnitude of the centripetal acceleration of an object on the surface of the Earth at latitude of 61.5°. Consider the Earth to be a sphere of radius R = 6.38 x 106
A defective starter motor in a car draws 260 A from the car's 12-V battery, dropping the battery terminal voltage to 6.0 V. What will the battery terminal voltage be with a good starter
Two 9.0 cm--diameter metal plates are 1.2 cm apart are charged to 12.5 nC . They are suddenly connected together by a 0.218mm, What is the maximum current in the wire
question a 0.900-v potential difference is maintained across a 1.50-m length of tungsten wire that has a
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