9. A beam of electron is injected into electric fields of 103V/m
and a magnetic field of 10 gauss at right angle to each other
and also perpendicular to the direction of the motion of the
electrons. The beam remains undedicated. What is the
velocity of electron beam?

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

so easy. just google the electromagnetic waves and it’ll pop up.