Sound waves that start in air can move into water. this is because it is that is transferred and . a) waves, matter b) energy, waves c) energy, particles d) particles, energy

Sound waves that start in air can move into water. This is because it is ENERGY that is transferred and not PARTICLES .

C) Energy, Particles

Explanation:

Wave propagation is the transfer of energy or disturbance through the medium.

Here we know that when energy is transferred through the medium the medium particles will remains at their own position and energy is transferred from one particle to other without the displacement of the medium from their own position.

So here in waves the energy is transmitted through the medium while the medium will remain at its own position

So correct answer will be

Sound waves that start in air can move into water. This is because it is ENERGY that is transferred and not PARTICLES .

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.