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Two rods of equal length (0.55m) and diameter (1.7cm) are placed end to end. One rod is aluminum, the other is brass. If a compressive force of 8400 N is applied to the rods,
(a) how much does their combined length decrease?
(b) Which of the rods changes its length by the greatest amount? Explain.
An unstable particle is at rest and suddenly breaks up into two fragments. What is the velocity of the more massive fragment
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. What is the flux that passes through the circular loop
two trains each having a speed of 30 kmh are headed at each other on the same straight track. a bird that can fly 60
A rock is thrown vertically upward from ground level at timet = 0. At t = 1.6 s it passes the top of a talltower, and 3.0 s later it reaches its maximum height. What is the height of the tower?
A spring has a spring constant = 40 N/m. It is compressed by a distance 10 cm. calculate Distance along the track to which the cart travels
A 1500-kg car moving east at 17 m/s collides with a 1800-kg car moving south at 15 m/s and the two cars stick together. What is the velocity of the cars right after the collision
A 120.kg refrigerator is at rest on a kitchen floor ( mu of s= 0.43 and mu of K= 0.27). How much force is needed to move the refrigerator at a constant speed of 5.41 m/s
Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 134 km long, 39.4 km wide, and 187 m thick.
during the spin cycle of your clothes washer the tub rotates at a steady angular velocity of 32.5 rads. find the
An electron passes through a point 2.71 cm from a long straight wire as it moves at 36.3% of the speed of light perpendicularly toward the wire
a cue ball mass 0.160 kg is at rest on a frictionless pool table. the ball is hit dead center by a pool stick which
A golf ball strikes a hard, smooth floor at an angle of ? = 32.4° and, rebounds at the same angle. What is the magnitude of the impulse applied to the golf ball by the floor
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