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The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0500 kg and is moving along the x axis with a velocity of +7.08 m/s. It makes a collision with puck B, which has a mass of 0.100 kg and is initially at rest. The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find the speed of (a) puck A and (b) puck B.
A proton accelerates from rest in a uniform electric field of 690 N/C. At one later moment, its speed is 1.30 Mm/s, Find the acceleration of the proton
In a photoelectric-effect experiment, the wavelength of light shining on an aluminum cathode is decreased from 249nm to 207nm. What is the change in the stopping potential
You have a solid conducting sphere (radius A, net charge -2Q) surrounded by a conducting spherical shell (inner radius B, outer radius C, net charge +3Q). What is the electric field everywhere
what is a catapult ? what is the traditional use of a catapult ? when were catapults in greatest use ? what
An air bubble has a volume of1.80cm3when it is released by a submarine105m below the surface of a lake. What is the volume of the bubble
A cylinder of length l, radius r, and mass m is constrained to rotate with constant angular velocity ? about an axis passing through the center O of the cylinder and making an angle a with the long axis of the cyclinder.
An astronaut is rotated in a horizontal centrifuge at a radius of 7.5 m. (a) What is the astronaut's speed if the centripetal acceleration has a magnitude of 5.4g? (b) How many revolutions per minute are required to produce this acceleration.
A metal wire of resistance R is cut into three equal pieces that are then braided together side by side to form a new cable with length equal to one-third of the original length
A stone dropped into a pond generates a travelling wave group approximately 1 m long; the waves within the group have a wavelength of about .1 m Estimate the range of the wavevector spectrum representing the group.
A 2,284-kg car is moving down a road with a slope (grade) of 13% at a constant speed of 11 m/s. What is the direction and magnitude of the frictional force
Once can set up a two-dimensional scattering theory that could be applied to puck projectiles sliding on an ice rink and colliding with various target obstacles.
the uss enterprise accelerates from rest at 100000 ms2 for a time of four seconds. how far did the ship travel in that
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