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A block of mass 7.37 kg in outer space is moving at 1.82 m/s by no external forces acting on it. After an explosion, the block is split into two parts both having mass equal to half the mass of the original block. The explosion supplies the two masses by an additional 15.3 J of kinetic energy. Neither mass leaves the line of original motion. Compute the magnitude of the velocity of the mass that is moving at a greater velocity.
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. what are the underwater angles of refraction for the blue and red components of the light
a hollow conducting sphere with an outer radius of 0.245 m and an inner radius of 0.200 m has a uniform surface charge
In case A, a metal bullet penetrates a wooden block, In case B, a rubber bullet with the same initial speed and mass, bounces off of an identical wooden block. Will the speed of the bullet in case B after the collision be or = of speed just before ..
A 1.2 kg toy car traveling at 2.0 m/s to the right collides and sticks to a 2.0 kg toy car traveling at 1.6 m/s to the left. What fraction of the total initial kinetic energy was lost in the collision
a what is the strength of an electric field ep that will balance the weight of a proton? express your answer
A football is kicked off the top of a 10 meter high building at anangle of 37 degrees above the horizontal with a speed of 20 m/s, How long does it take for the ball to hit the ground
a person having a spherical shape with mass m has a center of mass a distance h above a thin infinite sheet of mass
The average density of a fish can be found by firstweighing it in air and then finding the apparent weight of the fishas it hangs completely immersed in water. what is the average density of the fish
a coil is connected to a 60 hz ac generator with a peak emf equal to 80 v. at this frequency the coil has an impedance
The ground-state energy of an electron confined along the x-axis is 6.92×10-18 J. What is the approximate length of the region to which the electron is confined
a tin can is filled with water to a depth of 39 cm. a hole 18 cm above the bottom of the can produces a stream of water
A solid metal sphere of radius a = 1.30 cm is surrounded by a concentric spherical metal shell of inner radius b = 1.90 cm and outer radius c = 2.40 cm. What is the surface charge density, sc, on the outer surface of the outer spherical conductor
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