Technician a says that the reserve rating of a battery is the amount of steady current that a fully charged battery can supply for 20 hours without the voltage falling below 10.5 volts. technician b says that ampere-hour ratings state how many hours the battery is capable of supplying 25 amperes. who is correct1. a only2. b only3. both a and b4. neither a and b.

So here Technician B is correct

Technician B says that ampere-hour ratings state how many hours the battery is capable of supplying 25 amperes.

Explanation:

As we know that ampere hour rating of the battery is the product of current and time

As we know that

here we have

so we can say that ampere hour is the amount of charge that can be flowing through the battery.

So here Technician B is correct

Technician B says that ampere-hour ratings state how many hours the battery is capable of supplying 25 amperes.

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

c)as speed changes, wavelength and frequency change.

everything changes!