Answer:
Pencil lead.
Explanation:
no need for an explemation you can put two and two together XD
Answer:
The most common oxidation numbers for a given element
Answer:
Mulitple Changes.
Explanation:
Most people want something to be done, and never change again. But some others do, since they have there own beliefs. Alot of people are concerned about tax rates, taxes, nationial polices, own beliefs. People have there own beliefs and when someone is elected into the federal Government, they have there own Beliefs (Mostly Republican Or Democrate). People go against on what they dont think and go with what they think. At the end whoever sways the people on who to believe and vote for, Is elected.
Answer:
Explanation:
The Doppler effect occurs when a source of waves and/or observer move relative to each other, resulting in the observer measuring a different frequency of the waves than the frequency that the source is emitting.
Let use our case study.
It would be higher pitched when approaching due to the Doppler effect.
The sound waves as you approach them, travel faster relative to you so they pass more frequently which is higher pitched. when you travel away from the source you are out-speeding these waves so they sound slower and thus, lower-pitched.
When a car approaches bus, the sound waves that reach person on the bus have a shorter wavelength and a higher frequency. The person hear a sound with a higher pitch. When the car moves away from bus, the sound waves that reach the person have a longer wavelength and lower frequency. The person hear a sound with a lower pitch.
Answer:
what is this language
Explanation:
could you maybe mark me brainaist