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You do 6.5 J of work to stretch a spring with k = 190 N/m , starting with the spring unstretched.
A) How far does the spring stretch?
A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 405. When a jet aircraft is taking off, the sound intensity level experienced by the crew member is 90 dB. What sound intensity level..
A 23 bullet traveling 240 penetrates a 4 block of wood and emerges going 170. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
A circular coil enclosing an area of 200 cm2 is made of 210 turns of copper wire. The wire making up the coil has resistance of 3.0 ?, what is the average current in the coil during that time
An electron in the hydrogen atom makes a drop from n = 3 to m = 2. What wavelength of photon is emitted
A homemade capacitor is assembled by placing two 10 in pie pans 11 cm apart and connecting them to the opposite terminals of a 9 V battery. Estimate the charge on each plate
There is a uniform electric field throughout the region given by E = 4.9i + 7.1j + 3.6k in N/C units, What is the magnitude of the total flux through the five non-shaded faces
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.97 m/s. At what speed does the stone impact the ground
The rms speed of a sample gas is increased by 2 %, What is the percent change in the temperature of the gas
A sledge loaded with bricks has a total mass of 17.4 kg and is pulled at constant speed by a rope inclined at 20.4° above the horizontal. How much work is done by the rope on the sledge
A 12.0 kg bucket of water of is suspended by a rope wrapped around a windlass, which is the solid cylinder 0.500 m in diameter with mass 14.0 kg. The cylinder is pivoted on a frictionless axle through its center. The bucket is released from rest at t..
A generator connected to an RLC circuit has an rms voltage of 140V and an rms current of 32mA, what is the inductive reactance of the circuit
A nearsighted student with a far point of 6.30 m wears contacts that allow him to see distant objects clearly. determine image distance for the tree
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