What is the average strain in the spike during the impact
A 26.0 kg hammer strikes a steel spike 2.40 cm in diameter while moving with speed of 20.0 m/s. The hammer rebounds with speed 10.0 m/s after 0.110 s. What is the average strain in the spike during the impact?
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a) How wide must this oven be so that it will contain six nodal planes of the microwave disturbance (including the nodal plane at each walls) along its width in the standing wave pattern? b) What is the frequency of these microwaves?
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