Astanding wave form is 10 m long between the first and sixth nodes. the wavelength is:

0.4 m
0.6 m
1.4 m
4.0 m

Wavelength = 4.0 m

Explanation:

As we know that the distance between first and sixth nodes is given as 10 m

so here between first and sixth node the total number of loops are

N = 5

length of one loop is given by

so here we have

so the wavelength of the standing wave here is of length 4.0 m

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!