Physics, 03.09.2020 08:01, vannybelly83
A car with an initial velocity of 24.5 m/s east has an acceleration of 4.2 m/s? west. What is its displacement at the moment that its velocity is 18.3 m/s east?
Answers: 3
Physics, 22.06.2019 06:00, jagmeetcheema
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t Ï where l is the length of the string, t is its tension, and Ï is its linear density.â (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and Ï are constant) (ii) the tension (when l and Ï 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 â f is â (ii) when the tension is increased by turning a tuning peg df dt 0 and t is â f is â (iii) when the linear density is increased by switching to another string df dÏ 0 and Ï is â f is â
Answers: 3
Physics, 22.06.2019 08:00, JuanTorres7
The arrival of in the early days of europaâs existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europaâs surface and in its atmosphere due to europaâs . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato
Answers: 3
Physics, 22.06.2019 09:00, cmflores3245
Sobre transformaçÔes cĂclicas, sĂŁo feitas algumas afirmaçÔes, determine quais estĂŁo corretas. i â a variação de energia interna em uma transformação cĂclica Ă© nula; ii â o trabalho, em uma transformação cĂclica, Ă© sempre positivo; iii â ao completar um ciclo, o gĂĄs tem a mesma temperatura com a qual começou a transformação; iv â uma transformação cĂclica Ă©, obrigatoriamente, composta de transformaçÔes conhecidas, como adiabĂĄtica, isocĂłrica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Physics, 22.06.2019 16:00, Wolfzbayne
The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2
Answers: 1
A car with an initial velocity of 24.5 m/s east has an acceleration of 4.2 m/s? west.
What is its d...
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