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An aluminum rod is 18.0 cm long at 20°C and has a mass of 350 g. If 15,000 J of energy is added to the rod by heat, what is the change in length of the rod?
An explosion breaks an object into two pieces, one of which has 1.80 times the mass of the other. If 10000 J were released in explosion, how much kinetic energy did each piece acquire.
Two converging lenses, each of focal length 13.1 cm, are placed 58.6 cm apart, and an object is placed 29.9 cm in front of the first. What is the magnification of the system
The pulley system is used to lift a 52 kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to crate. assume the masses of the chains, pulleys, and ropes are negligible, conclude the forc..
A train car with mass m1 = 527 kg is moving to the right with a speed of v1 = 8 m/s and collides with a second train car, What is the mass of the second train car
These two isotopes are singly ionized (+e) and each is given a speed of 6.00 x105 m/s.
A 1360 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from the far end of the beam.
Assume someone drops an apple from a vertical distance of 6.0 meters, directly above the point where the arrow hits the tree.
What value does this give for the speed of sound in air. What is the speed of the ball at that point.
Consider a a series circuit containing an inductor (100 mH), a capacitor (40 microF) and a resistor (50 ohms). It is connected to the AC mains (f = 60 Hz, VRMS = 120 V), What is the new value of capacitance
This can lead to adverse decisions on product costing and pricing. To address this issue, some authors have suggested using the Activity Based Costing method." Do you agree with the above statement? Discuss and give relevant examples to support you..
The acceleration of gravity is 9.81 m/s^2. Assuming that air resistance is simply a constant 96 N force on the person during the fall, identify the person's velocity just before hitting the net. Answer in units of m/s.
three resistors of 75, 50 , 100 ohms are connected to a 9 volt source. determine the power dissipated by the circuit
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