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Two blocks, A and B have a mass of 100kg each. Coefficient of friction between all surfaces= 0.3. Determine the force P required to pull the block B from under the block A. Block A is held in place and wont move. (answer is 883)
What is the acceleration of the crate? What is the work done by gravity? What is the work done by friction? What is the kinetic energy at the bottom?
A ship leaves the island of Guam and sails a distance 265km at an angle 37.0? north of west. In which direction must it now head so that its resultant displacement will be 120km directly east of Guam? How far must it sail so that its resultant displa..
Calculate the de Broglie wavelength ? of an electron with energy EF in sodium, and compare the value with the atomic separation R in sodium
A fan on a car engine is running at an operating speed of 1500RPM when it experiences an angular deceleration of 42.5 rad/s2 for30.0 revolutions. (a) determine the final angular speed of the fanin rpm (b) how long does it take to reach this speed?
Given that the rotational constant of HF is 20.5cm-1, calculate the bond length of HF molecule
Suppose the lab floor is 2.91 m beneath the motion detector. If the detector produces a click, How long would it take before the echo returned
a thin insulating rod is bent into a semicircle arc of radius a and a total electric charge q is distributed uniformly
a longitudinal standing wave is established in a tube open at one end only. in air the fundamental frequency is 110 hz.
American physicist Robert A Millikan (1868-1953) won the 1923 Nobel Prize in physics. Calculate the work function. W0, for the metal, without knowing the value for Planck's constant.
Determine how much work must you do to push a 10 kilogram block of steel across a steel table (k=0.6) at a steady speed of 1.10 m/s for 6.50 second
A thin spherical shell of silver has an inner radius of 2.20 10-2 m when the temperature is 17° C. Find the change in the interior volume of the shell
A rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.70. At what angle does the ray leave the glass at point B
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