First satellite was Sputnik and it was a race then to send satellites!! Everyone starts experimenting how to launch.
first try was on a dog , Laika !! It was send to space as it is long after sputnik is placed in orbit !!
Now you know everyone knows rocket science and the most active are ISRO (India) and NASA (USA) !!
Answer:
C
Explanation:
Animals do not have cell wall thus membrane controls movement in and out while in plants it helps store genetic material inside
Answer:
The drift velocity of the electrons in this case is c) 5.52 x 10-4 m/s
Explanation:
Hi
First of all, we need to find the volume occupied by 63.3g of copper, so 
, then if we assume each atom of copper contributes with one free electron to the material body 
.
Finally, we apply 
, where A is area so, 
, thus 
.
As we can see c. 5.52 x 10-4 m/s is the nearest one.
The astronaut would go the opposite direction due to Newton’s third law of -10N, -10N, -9N, -9N
Let me know if this helped you, please rank this was the brainlist answer if possible, thanks!
