At what frequency will a 3.0 î¼f capacitor have a reactance of 7.0 kî©?

Frequency, f = 7.57 Hz

Explanation:

It is given that,

Capacitance,

Capacitive reactance,

We need to find the frequency. The capacitive reactance of the capacitor is given by :

f is the frequency

f = 7.57 Hz

Hence, this is the required solution.

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