The primary purpose(s) of an antenna is to: . Select all that apply.

Encode a wave with the information to be sent.
Decode a wave that has been received and turning it into a useful form.
Receive a wave from the air or other surroundings.
Send a wave into the air or other surroundings.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

where’s the list ? the question is incomplete