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An electron is located on a pinpoint having a diameter of 2.5 um. What is the minimum uncertainty in the speed of the electron?
Light of wavelength 0.50 ?m illuminates a soap film (n = 1.33). What is the minimum thickness of film that will give an interference when the light is incident normally on it
A 5.60 kg of mass is pressed against a spring with a spring constant of 12500 N/m. how high above the ground does it go before coming to a stop
Suppose you stir 1 kg of water until its temperatue raises by 1 degree C. How much work did you do on the water
Two particles oscillate in simple harmonic motion with amplitude A, about the centre of a common straight line of length 2A. How far apart are the particles from each other
At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 940 m/s2 What is the magnitude of the net force acting on the soccer ball at this instant
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m. Its eyepiece has a focal length of10.0 cm. What is the angular magnification of the telescope
The velocity of the bal
A jetliner, traveling northward, is landing with a speed of 65m/s. Once the jet touches down, it has 715 m of runway in which to reduce its speed to 6m/s
Suppose in the drawing that I1 = I2 = 13.6 A and that the separation between the wires is 0.0244 m. What is the magnitude of the external field
A copy of The History of the Decline and Fall of the Roman Empire by Edward Gibbon lies exactly in the middle of an otherwise empty 6.1m long bookshelf in Robarts Library. What is the speed at which the librarian raised the shelf
An insulated Thermos contains 145 cm3 of hot coffee at 89.0 °C. You put in an 11.0 g ice cube at its melting point to cool the coffee. By how many degrees (in Celsius) has your coffee cooled once the ice has melted and equilibrium is reached? Treat c..
A car of mass 1500kg is driving across a flat parking lot (u=0.3), How fast can the turn be made without causing the car to slide
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