Need help ASAP
Thanks + BRAINLIST only for correct answer
1.Cell phones convert sound...
Need help ASAP
Thanks + BRAINLIST only for correct answer
1.Cell phones convert sound waves intowaves.
-light waves
-sound waves
-radio waves
2.Electromagnetic waves used in cell phone communications are called?
-microwave
-radio wave
-infrared
-all of the above
3.To send out a radio signal far and wide...it is called?
-broadcast
-casting
-antenna
Answers: 3
Another question on Physics
Physics, 22.06.2019 17:40
The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
Answers: 3
Physics, 22.06.2019 23:00
A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?
Answers: 1
Physics, 23.06.2019 00:50
A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?
Answers: 3
Physics, 23.06.2019 02:30
If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?
Answers: 2
You know the right answer?
Questions
English, 03.08.2019 21:00
Mathematics, 03.08.2019 21:00
Health, 03.08.2019 21:00
Mathematics, 03.08.2019 21:00
History, 03.08.2019 21:00
Physics, 03.08.2019 21:00
History, 03.08.2019 21:00
History, 03.08.2019 21:00
Chemistry, 03.08.2019 21:00
