Physics, 05.03.2021 20:20, NetherisIsTheQueen
A 0.04 kg ball spins in a horizontal circle of radius 2.5m with a frequency of 5.0Hz. What is the tension force in the string?
Answers: 2
Physics, 21.06.2019 21:30, AleOfficial101
Aparticle with mass 1.81Γ10β3 kg and a charge of 1.22Γ10β8 c has, at a given instant, a velocity vβ =(3.00Γ104m/s)j^. what are the magnitude and direction of the particleβs acceleration produced by a uniform magnetic field bβ =(1.63t)i^+(0.980t)j^?
Answers: 2
Physics, 21.06.2019 23:20, pineapplepizaaaaa
Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?
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 Ο where l is the length of the string, t is its tension, and Ο is its linear density.β (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and Ο are constant) (ii) the tension (when l and Ο 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 β f is β (ii) when the tension is increased by turning a tuning peg df dt 0 and t is β f is β (iii) when the linear density is increased by switching to another string df dΟ 0 and Ο is β f is β
Answers: 3
Physics, 22.06.2019 21:00, andybiersack154
The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?
Answers: 1
A 0.04 kg ball spins in a horizontal circle of radius 2.5m with a frequency of 5.0Hz. What is the te...
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