Awave has a wavelength of 2.30 m and a frequency of 370.0 hz. what is the speed of the wave? m/s

Given data:

Wave length (λ) = 2.30 m,

Frequency     (f) = 370 Hz (waves/sec),

Determine the speed of the wave = ?

Speed of the wave is defined as "the distance a wave travels in a given time". And it is a product of wavelength (λ) and frequency(f).

An Important point to be remember here is "when increasing the wave length of the wave does not increase the speed of the wave" because the wave speed also depends on frequency (f), So, if the wave length increases wave speed decreases. As a result the product of wave length and frequency are same.

Mathematically,

          Wave speed = wave length × frequency

                                = 2.30 m × 370 waves/sec.

                                = 851 m/s.

Speed of the wave is 851 m/s

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.