Answer:
1. Planetary Model
2. Protons and Neutrons
Explanation:
1. planetary model is also known as quantum model, which is the model we use nowadays
2. Majority of the mass is from the total of neutrons and protons, electrons are so small that it is not included with the mass
Hope this helps
The period is the temporal difference between two same points in consecutive waves
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Answer:voltage=22.4volts
Explanation:
current=3.2A
Resistance=7ohms
Voltage =current x resistance
Voltage=3.2 x 7
Voltage=22.4volts