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The nucleus of an atom has a mass of 3.80 x 10^-25 Kg and is at rest. The nucleus is radioactive and suddenly ejects a particle of mass 6.6 x 10^-27 v Kg and Speed 1.5 x 10^7 m/s. Find the recoil speed of the nucleus that is left behind.
electrons are ejected from a metallic surface with speeds up to 460000 m/s when light of wavelength 650 nm is used. find the work funtion
Tarzan has foolishly gotten himself into another scrape with the animals and must be rescued once again by Jane. How high will Tarzan and Jane go on their first swing
A 20.0 kilogram kid stands at the center of a125 kg playground merry-go-round which rotates at 3.10 rad/s. find what is the new angular velocity of the system
At the instant that the (pivoted) meter stick is released (so while the stick is still horizontal) what is the acceleration of the released end of the meter stick (neglect the pennies)
A uniform board is leaning against a smooth vertical wall. Theboard is at an angle above the horizontal ground. Thecoefficient of static friction between the ground and the lower endof the board is 0.550. Find the smallest value for the angle, such t..
A small object carries a charge of 10 μC. If the object is so small that it can be regarded as a point charge, determine the energy density at a distance of 2 meter from the charge
Carbon Tetrachloride A 30mm thick layer of water (n = 1.33) floats on a 50 mm thick layer of carbon tetrachloride (n = 1.46) in a tank. A coin lies at the bottom of the tank. At what depth below the top water surface do you perceive the coin?
Suppose the emf of a coil rotating in a magnetic field is zero at t = 0 , and increases to its first peak at t = 0.11 ms. What is the angular velocity of the coil
a point charge q1 3.85nc is located on the x-axis at x 2.00m and a second point charge q2 -5.55nc is on the y-axis
What is the angular momentum of a 0.270 kg ball rotating on the end of a thin string in a circle of radius 1.40 m at an angular speed of 7.30 rad/s
Two waves with identical frequency but different amplitudes A1 = 6.0 cm and A2 = 3.0 cm, occupy the same region of space (are superimposed). What is the amplitude of the resulting wave in that case
A proton moves perpendicular to a uniform magnetic field Barrowbold at a speed of 1.20 107 m/s, Determine the magnitude and direction of the field
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