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Two stretched strings are placed next to one another, one with a length of 70.0 cm and the other with a length of 84.0 cm. The two strings have the same mass per unit length. You pluck the shorter one so that it vibrates at its fundamental frequency. You then adjust the tension in the longer string until it resonates with the first one. To resonate, the two strings must have the same fundamental frequency, so that vibrations on one string can cause the second string to vibrate.
(a) What is the ratio of the speed of waves on the shorter string to the speed of waves on the longer string?
(b) What is the ratio of the tension in the shorter string to the tension in the longer string?
A particular heat engine has a mechanical power output of4.80kW and an efficiency of26.0%. The engine expels8.90103J of exhaust energy in each cycle. Find the energy taken in during each cycle.
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The displacement of a wave traveling in the positive x-direction is D(x,t)=(3.5cm)sin(2.7x?122t), where xis in m and t is in s. What is the frequency of this wave
A flywheel has a constant angular deceleration of -2.36 rad/s2. Find the time required for the flywheel to come to rest
Total internal reflection will occur when the refraction angle is 90' degrees or more. find the angle of incidence at which total interanl refraction in water will occur
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