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A 3gm bullet with a speed of 300m/sec is fired on a 400gm block initially at rest. The bullet passes through the block and as a result the block begins to move with a speed of 1.5m/sec in the original direction of the bullet. Find the speed of the bullet after it has passed through the block.
The scale of a spring balance reading from 0 to 235rm {N} has a length of 15 rm{cm}. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.7rm {Hz}. What is the mass of fish? In Kg.
A current of 7.93 A in a long straight wire produces a magnetic field of 7.75 µT at a certain distance from the wire. Find this distance in meters
Two railroad freight cars with masses 100 and 150 approach with equal speeds of 0.300, Find the velocity of the heavier car after the collision
Determine the average value of g for all 35 trials. How does this compare with the value you obtained for the first 5 trials? In which average do you have greater confidence? Why
A 3500kg car traveling to the north isslowed down uniformly from an initial velocity of 20m.s by a 6250Nbraking force acting opposite the car's motion. How long does it take the car to come to a complete stop
A Helium Neon laser (wavelength: 632.8 nm) is directed at a double slit plate. On a screen 1.37 meters away, What is the slit difference in micrometers
A river flows due east at 1.5 m/s. A boat Crosse the river from the south shore to the north shore by maintaining a constant velocity of 10.0 m/s due north relative to the water. What is the velocity of the boat relative to the shore?
A bowling ball 26 cm in diameter is slid down an alley with which it has a coefficient of sliding friction of µ = 0.55. The ball has an initial velocity of 9 m/s and no rotation. g = 9.81 m/s2. Note: For a sphere Icm = (2/5)mr2.
A ball having a mass of 170 g strikes a wall with a speed of 5.0 m/s and rebounds with only 50% of its initial kinetic energy. find the speed of the ball immediately after rebounding
What is an SBc galaxy? How does the density wave model of spiral arms explain that they are brighter than the areas between the arms? The Milky Way is an example of which type of galaxy?
A meter stick with mass 90 grams has a 30 gram particle stuck to its center. What is the rotational inertia of the system
A 97.1-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.67 rad/s. Find the angular velocity of the platform with its load
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