Physics, 22.11.2019 21:31 salvadorperez26
Abobsled starts at rest then races down a 200m track with a constant acceleration. the bobsled starts 40 m off the ground then races down the track 200m to the ground. the mass of the bobsled is 50kg. when the bobsled reaches the end of the track it is moving at 19 m/s. g=10 m/\^2
Answers: 1
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 ⇒
Answers: 3
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d
Answers: 2
Abobsled starts at rest then races down a 200m track with a constant acceleration. the bobsled start...
English, 18.03.2021 01:10
Mathematics, 18.03.2021 01:10
Mathematics, 18.03.2021 01:10
English, 18.03.2021 01:10
Physics, 18.03.2021 01:10
Social Studies, 18.03.2021 01:10
Mathematics, 18.03.2021 01:10
Chemistry, 18.03.2021 01:10
Chemistry, 18.03.2021 01:10
English, 18.03.2021 01:10
Chemistry, 18.03.2021 01:10