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Problem: A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.65 of the person's regular weight.
Part A: Calculate the magnitude of the acceleration of the elevator.
Please show all work to determine the magnitude of the acceleration of the elevator.
A 5.00-kW motor is used to pull a 20.0-kg crate up a 15.0°-incline of length 4.00 m. At what average velocity can the motor move the crate up the incline
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A 70 kg rock lies at the bottom of a lake. If the volume of the rock is 30,000 cm3, how much force is needed to lift it? The density of water is 1.0 g/cm3.
calculate the electric field at the center of a square 50.6 cm on a side if one corner is occupied by a 43.0 microc
A cylinder 10 m high, with a cross-sectional area of 0.1 m2, has a mass-less piston at the bottom with water at 20 degrees Celsius on top of it. Find the total heat transfer to the air when all of the water has been pushed out
State and explain magnetic dipole moment µ of a coil of number of turns N and area A carrying current i
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Designing an oceanographic mooring. A mooring is a platform for placing scientific instrumentation in the water at a range of depths for extended periods of time. At its most basic, it consists of an anchor, a piece of cable, and a buoyant float (whi..
A 125 kg mail bag hangs by a vertical rope 3.3 m long. A postal worker then displaces the bag to a position 2.2 m sideways from its original position, What horizontal force is necessary to hold the bag in the new position
Romeo is chucking pebbles gently up to Juliet's window, and he wants the pebbles to hit the window with only a horizontal component of velocity. he is standing at the edge of a rose garden 4.5 m below her window and 5 m from the base of the wall. How..
In a head-on collison with an atom, a fast-moving electron suffers a deceleration of 4.0x10^23 m/s^2. What is the electric radiation field generated by the electron at a distance of 10 cm at right angles to the direction of motion
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