Physics, 14.11.2020 01:20 briandgonzalezk
calculate the force of gravity between two masses of 25kg the masses are 8m apart the gravitational constant is 6.67 x 10^-11 N m^2/kg^2
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 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 08:30, khohenfeld0
What properties of a moving object are used in determining the object's energy of motion
Answers: 2
Physics, 23.06.2019 05:00, cristian901997
The voltmeter reads 117 v and ammeter reads 0.13 a .if the resistance of ammeter and voltmeter are 9 kilo ohm and 0.015 ohm respectively ,find the value of r. 3marks
Answers: 3
Physics, 23.06.2019 08:00, dootdootkazoot
What is the momentum of 70 kg runner traveling at 10 m/s?
Answers: 1
calculate the force of gravity between two masses of 25kg the masses are 8m apart the gravitational...
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