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A 1.6-m-long string fixed at both ends vibrates at resonant frequencies of 720 Hz and 960 Hz, with no other resonant frequency between these values.
(a) What is the fundamental frequency of this string?
(b) When the tension in the string is 1162 N, what is the total mass of the string?
At the equilibrium position, the piston is situated at the hight l0 from the bottom of the cylinder. The pressure outside of the cylinder is P0, the cross section of the cylinder and the piston is S.
A non-uniform bar 5 meters has a center of gravity 1 meters from the heavy end. If it is placed on the edge of a block 1 meters from the light end and a weight of 1497N is placed at the light end of the bar, it will be balanced. What is the weight..
A proton is fired directly into a uniform electric field that is able to bring the charge momen- tarily to rest. How much work does the electric field do in stopping the proton
1. Chameleons use their tongues to catch their prey. Their tongues typically accelerate at 250 m/s2 for up to 20 ms, then they travel at constant speed for a further 30 ms. During this total duration, of acceleration plus constant motion, of 5..
Using the equation F=m v^2/r for a force an object in circular motion. Find the radius r of motion of a m=1.6 kg ball travelling in a circular path acted upon by a centripetal force F=7N.
A bimetallic strip is made out of two strips of metal bonded together. Each strip is 20.0 cm long and 1.00 mm thick. What is the inner radius of curvature of the composite strip
What fraction of the power radiated by the sun is intercepted by the planet Neptune? The radius of Mercury is 2.48 107 m
q1. brass is an alloy made from copper and zinc. a .59 kg brass sample at 98 c is dropped into 2.8 kg of water at 5 c.
A 33.6 m length of copper wire at 23?C has aradius of 0.19 mm . The resistivity of copperis 1.7 × 10?8 ? m, determine the current in the wire
A uniform electric field points midway between the positive x and y axies. Its strength is 100Volts/m. Find the location of the point where the total electrid field is zero
A barge on the Ohio river is 35 ft wide and 200 ft long with walls which are 12 ft high. One day you see it going up river empty and 10.5 ft of the barge is above water. What is the mass of the barge
A goldfish is swimming inside a spherical bowl of water having an index of refraction n = 1.333. determine the apparent distance of the goldfish from the wall
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