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A photon of wavelength 4.220×10?2nm strikes a free electron and is scattered at an angle of 38.0?from its original direction.
Find the change in the wavelength of this photon.
A disk of mass M and radius R rotates around the z axis with angular velocity wI. What is the ratio of the initial to the final kinetic energies of the two-disk system
A compund microscope has an objectibe lens with a 2.2 cm focal length and an eyepiece with a 5.4 cm focal length. what magnification does the microscope produce
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 33 500 V. find the electron speed just before the electron strikes the screen
A boat has a mass of 6800 kg. Its engines generate a drive force of 4000 N, find the magnitude and direction of the boat's acceleration
In an integrated circuit, the current density in a 2.9 ??m?thick× 71 ??m?wide gold film is 7.7×105A/m2, How much charge flows through the film in 15 min
A candle is placed 13.38 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, Find the focal length of the convex mirror
A ball is released from the top of a cliff; it hits the ground 1.1 seconds later. how many meters is the cliff above the ground below
Under certain conditions, the human body can withstand an acceleration of 10 g%u2019s. What is the net force (in Newtons) acting on a person
the plane of a flat, circular loop of wire is vertical. An external B-field is directed perpendicular to the plane of the loop. What is the direction of the external magnetic field
An athlete completed a marathon in 2 h, 39 min, 41 s. Determine the average speed (in miles per hour) of the athlete.
An automobile of mass 1500 kg moving at 25m/s collides with a truck of mass 4500 kg at rest. What is the final velocity of the car after the collision
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