Which of the following account for the difference between radio waves , infrared waves, and ultraviolet rays?
A. speed
B. frequency
C. amplitude
D. wavelength

The answer is B. frequency and D. wavelength for APX.

Explanation:

when the velocity of a mass on a spring is zero, the acceleration is at a maximum .

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