A wave has a frequency of 540 Hz and is traveling at 340 m/s. What is its wavelength?

wavelength of wave = 62.69 cm

Explanation:

Given

frequency of wave = 540 Hz = 540

Speed of wave = 340 m

wavelength of wave = ?

We know that for all waves, the relationship between wavelength λ, frequency f and speed v is same and given by the equation:

v = fλ

Hence wavelength λ  = v/f

                                   = 340 m / 540

                                   = 0.6296 m

                                    = 62.69 cm

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

double the distance = divide strength by 4