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Two slits are illuminated with red light ( ? = 650 nm). The slits are 0.25 mm apart and the distance to the screen is 1.25 m. What fraction of the maximum intensity on the screen is the intensity measured at a distance 3.0 mm from the central maximum?
A car traveling at 21 {rm m/s} runs out of gas while traveling up a 25^circ slope. How far up the hill would it coast before starting to roll back down.
A 100 MeV particle decays into two particles. one of these two particles has a mass of 10 MeV and a speed of 3/5. what was the inital particle's speed
q. a ballistic pendulum consists of a chunk of clay suspended from a rope. while a bullet is fired into clay it sticks
A basketball player makes a jump shot. The 0.700 kg ball is released at a height of 2.00 m above the floor with a speed of 7.70 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.30 m/s. What isthe work done on the ball by a..
A solid cylinder is rolled down a ramp. They cylinder starts 0.29 m above the level surface below. If it starts at rest, what is the speed of the center of mass as it reaches the level surface
A parallel-plate capacitor has a plate separation of 5.0 cm. If thepotential difference between the plates is 2000 V, with the top plate at the higher potential, what is the electric field between the plates?
An electron has mass me = 9.11 x 10-31 kilogram and charge -e, a proton has mass mp = 1.67 x 10-27 kg and charge +e, an alpha particle has mass m alpha = 6.65 x 10-27 kilogram and charge +2e, Compute the kinetic energy of the electron
A 1480-W heater carries a current of 13 A. How much does it cost to operate the heater for 42 min if electrical energy costs 15 cents per kWh
A long straight conducting rod (orwire) carries a linear charge densityλof +2.0μC/m. This rod is totally enclosed within a thincylindrical shell of radius R, which carries alinear charge density of - 2.0μC/m.
At t = 0, the current through a 65.0 mH inductor is 52.0 mA and is increasing at the rate of 100 mA/s. How long does it take for the energy to increase by a factor of 10 from the initial value
A 5.0 g bullet leaves the muzzle of a riffle with a speedof 320 m/s. What force (assumed constant) is exerted on the bulletwhile it is traveling down the 0.82 m long barrel of the riffle?
A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. Find the force acting on the board by the tailgate
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