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Q1. A 5-kg load is fastened vertically to the end of steel wire 0.5m long and 0.0006 sq.cm in cross-section. Hanging from the bottom of this weight is alike steel which supports a second load of 40 lb. For each wire, calculate the elongation in mm and the strain. What is the total elongation of wires?
Q2. In 1847, Dutch scientist Christoph Buys-Ballot developed a test of the Doppler shift. He had a trumpet player sound a note at 456 Hz, whereas riding on a flatcar pulled by a locomotive. At the same time, the stationary trumpeter played the same note. Ballot heard 3.0 beats per second. How fast was the train moving toward him?
What is magnitude of the speed of the boat
A 79, 37--long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 13 ball of clay travelling horizontally at 2.6 hits and sticks to the extremely bottom tip of the rod.
Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can while it reaches bottom.
Estimation instantaneous rate of evaporation
How much energy is necessary to bring the system back
A person whose eyes are H = 1.64 m above the floor stands L = 2.3 m in front of a vertical plane mirror whose bottom edge is 38 cm above the floor. What is the horizontal distance x to the base of the wall supporting the mirror of the nearest point o..
Establish the initial volume of the gas . What is the magnitude of normal force that each brake pad applies to the rim.
How fast is the roller coaster moving at the top of the loop
A battery having an emf of 11.10 V delivers 102 mA when connected to a 61.0 load. Find out the internal resistance of the battery.
How long does it take for amplitude to drop to half its initial value . How long does it take for mechanical energy to drop to half its initial value.
Find out altitude of the airplane
W hat are underwater angles of refraction
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