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The drawing shows an A-shaped ladder. Both sides of the ladder are equal in length. This ladder is standing on a frictionless horizontal surface, and only the crossbar (which has a negligible mass) of the "A" keeps the ladder from collapsing. The ladder is uniform and has a mass of 14.2 kg. Determine the tension in the crossbar of the ladder.
The total translational kinetic energy of the molecules of a sample of gas at 447 K is 1.33 x 10^4 J, Find the average translational kinetic energy of a single molecule
questiona 1.00 ball is thrown directly upward with an initial speed of 16.0. a graph of the balls gravitational
You have a string with a mass of 0.0125 kg. You stretch the string with a force of 9.75 N, What is the wavelength of the standing wave you create in the string and What is the frequency
An oil drop carries one excess electron and weighs 9.6 x10-15 N. What electric field strength is required to suspend the drop so it is motionless.
A photon with a wavelength of 3.30×10?13 strikes a deuteron, splitting it into a proton and a neutron. determine the kinetic energy released in this interaction
A certain dam is holding back fresh water 203 m deep. What is the water pressure at the base of the dam
A straight horizontal wire carries a current of 6.50 μA. An electron is moving above the wire the direction parallel to it and in the same direction as the conventional current in the wire.
A 25.0g arrow is shot through a 7.8 cm apple. If the arrow enters the apple at 38.8 m/s and emerges with a speed of 30.10m/s in the same direction, what is the magnitude of force with which the apple has resisted the arrow.
A ray of light is incident on a flat surface of a block of cubic zirconia that is surrounded by water. obtain the angle of reflection
A rock is thrown off a 80.0 m limestone cliff at an angle of 38 degrees below the horizontal with an intitial velocity of 22.0m/s. What is the total time in flight
An electron accelerated from rest through a voltage of 350V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 28cm, what is the magnitude of magnetic field.
A hair dryer operate at 1800 watts along with a 240 watt power resistor connected in a series. Utilizing a 120 volt source, determine the current I and resistance R of the hair dryer
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