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A cabinet of mass 31 kg is on a level floor. Between the cabinet bottom and the floor, the static friction coefficient is μs = 0.3 and the kinetic friction coefficient is μk = 0.2. If a force of 380 N is applied on the cabinet horizontally, what would be the acceleration of the cabinet?
A small earthquake starts a lamppost vibrating back and forth. What is the time constant for the damping of the oscillation
a proton traveling due north enters a region that contains both a magnetic field and an electric field. the electric
An electron is confined to a one-dimensional region in which its ground-state (n = 1) energy is measured to be 2.25 eV. What is the length L of the region
You are doing a double-slit experiment with two different colors. You notice that the second-order bright fringe using 680-nm red light is in the same place as the third-order bright fringe of the other color. What is the wavelength of the color
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 52.5 kg and air resistance exerts a total upward force of 610 N on her and her parachute.
The two organ pipes are joined to form a single organ pipe then it will resonate with what frequency (consider fundamental mode of vibration of organ pipe)
In a binary star system, two stars have elliptical orbits about the center of mass of the system. what is the change in the gravitational potential energy of the system
A Ferris wheel with a radius of 7.7 m rotates at a constant rate, completing one revolution every 37 s, Find the direction and magnitude of a passenger's acceleration when at the bottom of the Ferris wheel
Point A is at a potential of +250 V, and point B is ata potential of –150 V. An Alpha-particle is a helium nucleus that contains two protons and two neutrons; the neutrons are electrically neutral.
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 121 bpm, How fast are you moving with respect to the Moon
you place a 7.73-mm-high chocolate chip on the axis of and 12.7 cm from a lens with focal length 5.45 cm. if it can be
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, and its diameter 1.28 cm. Find the volume of the cylinder. Calculate the probable percent error in the length. Calculate the probable percent error..
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