Physics, 01.07.2019 23:30 mcsaggers2842
Adamped harmonic oscillator loses 6.0% of its mechanical energy per cycle. a. by what percentage does its frequency (equation 14-20) differ from its natural frequency? b. after how many periods will the amplitude have decreased to 1/2 of its original value?
Answers: 1
Physics, 21.06.2019 16:00
28. a stone is projected at a cliff of height h with an initial speed of 42.0 mls directed at angle ΞΈ0 = 60.0Β° above the horizontal. the stone strikes at a, 5.50 s after launching. find (a) the height h of the cliff, (b) the speed of the stone just before impact at a, and (c) the maximum height h reached above the grou
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Physics, 22.06.2019 03:00
Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system
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Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t Ο where l is the length of the string, t is its tension, and Ο is its linear density.β (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and Ο are constant) (ii) the tension (when l and Ο are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is β f is β (ii) when the tension is increased by turning a tuning peg df dt 0 and t is β f is β (iii) when the linear density is increased by switching to another string df dΟ 0 and Ο is β f is β
Answers: 3
Physics, 22.06.2019 11:50
The mass of the sun is 1.99Γ1030kg and its distance to the earth is 1.50Γ1011m. what is the gravitational force of the sun on the earth?
Answers: 3
Adamped harmonic oscillator loses 6.0% of its mechanical energy per cycle. a. by what percentage doe...
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