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.
Answer:
The Prokaryotic Cells and The Eukaryotes
speed of light in medium is 199,861.6 km/s
Answer:
The most notable way that reducing energy helps the environment is by decreasing power plant emissions.
Answer:
The mass of the hailstone is 
Explanation:
From the question we are told that
The mass of the hockey puck is 
The initial speed of the puck is 
The final speed of the puck is 
According to the principles of linear momentum
At initial the velocity of the hailstone was zero so
So
substituting values
=> 
=> 
=>
