Answer:
freqiency=velocity/wavelength
ief=20/2000=0.01hz
Answer:
1. 200 metres West
2. Dividing distance by time
3. Speed was unchanged
4. 1800 metres
5. 15 seconds
Explanation:
Running 500 metres West puts you 500 Metres west from the start. Then running 300 metres east puts you 200metres from where you started.
Since displacement is the distance you are from your original position 200 Metres West is the answer
2. Distance = Speed x Time
Rearrange that to get Speed = Distance / Time
3. Acceleration is when the rate of increase or decrease of speed or the direction is changing. When the speed or sirection dont change acceleration is 0
4. Distance = Speed x Time
60 x 30 = 1800 metres
5. Time = Distance / Speed
300 / 20 = 15 seconds
Answer:
Examples include cars, buildings, clothing, and tools. Nonmaterial culture refers to the abstract ideas and ways of thinking that make up a culture. Examples of nonmaterial culture include traffic laws, words, and dress codes.
Answer:
-main-sequence star
-protostar with jets
-contracting cloud trapping infrared light
-molecular-cloud fragment
Explanation:
The Life of a Star of about one Solar Mass. Small stars have a mass upto 1 1/2 times that of the Sun. Stars are planetary bodies that revolve in space. They are the combination of hydrogen and helium gases
seven main stages of a star formation are
A Giant Gas Cloud. A star begins life as a large cloud of gas. ...
A Protostar Is a Baby Star. ...
The T-Tauri Phase. ...
Main Sequence Stars. ...
Expansion into Red Giant. ...
Fusion of Heavier Elements. ...
Supernovae and Planetary Nebulae.
But ranking them according to the central temperature, from highest to lowest. will be
-main-sequence star
-protostar with jets
-contracting cloud trapping infrared light
-molecular-cloud fragment
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