Physics, 14.12.2020 05:30, vicilicious74
What is the change in velocity of a 15 kg object that experiences a 5 N force for 0.3 seconds?
Answers: 1
Physics, 22.06.2019 06:00, jagmeetcheema
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
Physics, 22.06.2019 12:00, fryday2516
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?
Answers: 1
Physics, 22.06.2019 12:30, spenceraniyah1
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5Ã103 j and the energy transferred thermally out is 99.4Ã103 j. there are 1.5Ã1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1â2 b. 2â3 c. 4â1 d. 1â2 and 4â1 e. none of the above
Answers: 3
Physics, 22.06.2019 14:00, janreyes39
Explain why you think this diagram shows what happened to the carbon in the biodome.
Answers: 2
What is the change in velocity of a 15 kg object that experiences a 5 N force for 0.3 seconds?...
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