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A horizontal spring-mass system oscillates on a frictionless table. If the mass is 3.8 kg, the spring constant is 100 N/m, and the maximum speed of the mass was measured to be 17.60 m/s, find the maximum extension of the spring.
A 0.180 kg baseball, travelling 32.0 m/s, strikes catcher's mitt that recoils 13.0 cm in bringing the ball to rest. What was an average force (in newtons) applied by the ball to the mitt.
A source emits sound uniformly in all directions. A radial line is drawn from this source. On this line, determine the radial positions of two points, 0.786m apart, such that intensity level at one point is 1.72 dB greater than that at the other.
The intensity (in W/m2) of one sound is 5.46 times as great as the intensity of another sound. what is the intensity level of the louder sound
find the angular displacement of the propeller.
Cowboy joe wishes to shoot his assaiat by ricocheting a bullet off a mirrored metal plate. To do so, must he simply aim at the mirrored image of his assaiant? Explain.
a shower head has 20 circulaar openings, each with radiius 1.0 mm. what is its speed as it exits the shower head openings
Differentiate between the following three types of plain carbon steels.
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. determine the voltage drop from cathode to anode
Two protons, each having a speed of 0.940c in the laboratory, are moving toward each other. find the total momentum of the two protons in the laboratory
A person can't see objects clearly that are closer than 80 cm. What is the refractive power of the contact lenses wouyld you prescribe
A uniform plank of length 5.8 m and weight 202 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the Illustrataing). To what distance x can a person who weighs 441 N walk on the overhanging part of t..
A 0.840-kg block oscillates on the end of a spring whose spring constant is k= 42.0 N/m . The mass moves in a fluid which offers a resistive force F=-bv, where b = 0.640 N*s/m. What is the fractional decrease in amplitude per cycle?
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