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Show Work: What is the acceleration of a 2.3 kg toy car which has the force of 25 N pushing it forward and 6.8 N of friction pushing it back
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Physics, 21.06.2019 14:30
The velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?
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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 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 08:30
What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force
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Physics, 22.06.2019 12:20
What is the coefficient of kinetic friction Îŧk between the block and the tabletop?
Answers: 1
Show Work: What is the acceleration of a 2.3 kg toy car which has the force of 25 N pushing it forwa...
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