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The second order fringe when 800 nm light falls on a double slit is observed at a 12 degree angle to the initial beam direction. how far apart are the slits?
You have a lens whose focal length is 5.17 cm. You place an object on the axis of the lens at a distance of 11.5 cm from it. How far is the object\'s image from the lens
How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 27.0cm in diameter to produce an electric field of 1050N/C just outside the surface of the sphere
The first bright fringe of a diffraction grating of 600 ruling/mm is found at angle of 21 degrees.Find the wavelength of light of the source.
A 18800 kg helicopter lifts a 4700 kg truck with an upward acceleration of 1.5 m/s2. Compute (a) the net upward force on the helicopter blades from the air and (b) the tension in the cable among the helicopter and truck.
The electric potential immediately outside another charged conducting sphere is 190 V, Determine all possible values for the radius of the sphere
the near point of a given individual's eyes is 55cm. what focal length corrective lens should be prescribed so that an object can be clearly seen when placed at 25cm in front of the eye
Certain stars at the end of their lives are thought to collapse combining their protons and electrons together to form a neutron star. Such a star could be thought of as a giant atomic nucleus.
Dry ice is frozen carbon dioxide. Suppose you have a piece of dry ice with a mass of 200 grams (a little less than half a pound) which you place into a large deflated bag, which you seal. What volume will the bag have expanded to
A football player runs from his own goal line to the opposing team's goal line, returning to the fifty-yard line, all in 22.8 s. Compute his average speed. Compute the magnitude of his average velocity.
A rectangular block of ice 7.00 m on each side and 1.80 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. How high does the top of the ice block float above the water level.
A 70 turn coil of radius 4.6 cm rotates in a uniform magnetic field having a magnitude of 0.45 T. find the magnitude of the maximum torque exerted on the coil
A small object is placed to the left of a convex lens and on the optical axis. compute the position of the image formed by the lens
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