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An engine is being used to raise an 89 kilogram crate vertically upward. If the output power of the engine is 1620 W, compute how long does it take the engine to lift the crate a vertical distance of 18.7 meter? Friction in the system is negligible.
A race car, traveling at a constant speed of 50 m/s, driver around a circular track of radius 500 m. What magnitude acceleration does it experience
Write down a function named as kineticEnergy() which determines the kinetic energy of an object in accordance with the following formula.
Two adjacent natural frequencies of an organ pipe are found to be 750 Hz and 825 Hz. Calculate the fundamental frequency and length of this pipe
A particle of mass m kg is attached to one end A of a model spring OA of natural length L0 = 1.05 m and stiffness K N/m. The spring is hung vertically with the end O fixed and end A attach to the particle, which moves in a vertical line.
high-energy gamma rays can reach a radiation detector by compton scattering from the surroundings. this effect is known
Two skaters, a man and a woman, are standing on ice. Neglect anyfriction between the skate blades and the ice. The mass of the manis 95 kg, and the mass of the woman is 63 kg. The woman pushes onthe man with a force of 55 N due east.
a cylindrical wheel is rotating with a constant angular acceleration of 4.0 rad/s^2. At the instant it reaches an angular speed of 2.0 rad/s, What is the radius of the wheel
an electron is a subatomic particle m 9.11x10-31 kg that is subject to electric forces. an electron moving in the x
Compute where should you put a third mass M therefore that the net gravitational force on M due to the two masses is exactly zero
The filament in an incandescent light bulb is made from tungsten. The light bulb is plugged into a 120 V outlet, determine how long must the wire be
carries a 10 A current with a uniform current density. Use Ampere's Law to determine the magnetic field strength at the axis of the wire
an electric current is given by the expression i t 100 sin 120pit where i is in amperes and t is in seconds. what is
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