Physics, 24.07.2019 06:30 ericamoody14
Astring of 27 identical christmas tree lights are connected in series to a 120 v source. the string dissipates 68 w. what is the equivalent resistance of the light string? answer in units of ฯ.
Answers: 1
Physics, 21.06.2019 23:20
From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?
Answers: 1
Physics, 22.06.2019 03:00
The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ฯ where l is the length of the string, t is its tension, and ฯ is its linear density.โ (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ฯ are constant) (ii) the tension (when l and ฯ 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 โ f is โ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is โ f is โ (iii) when the linear density is increased by switching to another string df dฯ 0 and ฯ is โ f is โ
Answers: 3
Physics, 22.06.2019 09:30
(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
Answers: 3
Astring of 27 identical christmas tree lights are connected in series to a 120 v source. the string...
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