It is used to classify the climates around the world
Answer:
The vacuum tube was replaced with transistor.
Explanation:
- The invention of semiconductor was very useful in making solid state transistor that allowed the production of small yet faster, cheaper, and more trusted and reliable computers.
- These solid state transistor is so often used that, it nearly replaced all the use of transistor.
- This replacement took place after the invention of semiconductor in the year around 1940.
- Vacuum tubes also known as thermionic tubes are not used anymore in computers and electronics.
(,I hope this helps yoy)
Explanation:
1.If the displacement of an object is zero,the speed must be zero.
Not true
2.(your answer is true)
3.false
4.true
