Physics, 30.11.2019 03:31 waterborn7152
A0.140-kg glider is moving to the right with a speed of 0.80 m/s on a frictionless, horizontal air track. the glider has a head-on collision with a 0.299-kg glider that is moving to the left with a speed of 2.28 m/s. find the final velocity (magnitude and direction) of each glider if the collision is elastic.
Answers: 3
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ρ where l is the length of the string, t is its tension, and ρ is its linear density.† (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ρ are constant) (ii) the tension (when l and ρ 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 ⇒ f is ⇒ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is ⇒ f is ⇒ (iii) when the linear density is increased by switching to another string df dρ 0 and ρ is ⇒ f is ⇒
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Physics, 22.06.2019 09:30
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Physics, 22.06.2019 15:40
If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false
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Physics, 22.06.2019 16:00
From the perspective of an employee that effective channeling of work related information and concerns
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