Answers: 1
Physics, 21.06.2019 21:00
An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?
Answers: 2
Physics, 21.06.2019 23:30
Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle
Answers: 1
Physics, 22.06.2019 05:00
Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?
Answers: 1
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t Ī where l is the length of the string, t is its tension, and Ī 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 Ī are constant) (ii) the tension (when l and Ī 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 dĪ 0 and Ī is â f is â
Answers: 3
Suppose instead of capacities, we consider networks where each edge uv has a nonnegative demand d(uv...
Mathematics, 22.04.2020 11:38
Spanish, 22.04.2020 11:39
Social Studies, 22.04.2020 11:39
Geography, 22.04.2020 11:40
History, 22.04.2020 11:40
English, 22.04.2020 11:40
Geography, 22.04.2020 11:42
English, 22.04.2020 11:42
Mathematics, 22.04.2020 11:43
English, 22.04.2020 11:43
Geography, 22.04.2020 11:43
Medicine, 22.04.2020 11:43