Physics, 19.12.2020 03:50 meganwintergirl
Explain how lenses in glasses or contacts need to change the light waves that enter the eye for a person who is
1.Nearsighted
2.Farsighted
Use the terms convex and concave in your answer.
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 11:50, sillslola816oxb5h7
The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].
Answers: 3
Physics, 22.06.2019 12:10, saniyawilliams1207
Energy flows from the producer level to the level. is called
Answers: 1
Physics, 22.06.2019 23:10, lyssssasantiago9844
Estimate of the number of stars in our galaxy
Answers: 1
Explain how lenses in glasses or contacts need to change the light waves that enter the eye for a pe...
Mathematics, 08.07.2019 21:30
Mathematics, 08.07.2019 21:30
Mathematics, 08.07.2019 21:30
Mathematics, 08.07.2019 21:30
Mathematics, 08.07.2019 21:30