an electron travels in a vacuum tube that is 2 meters in length .002 seconds what is the average speed of the electron during th
2 answers:
Answer : The average speed of the electron during this time is 1000 m/s
Explanation :
Average speed : It is defined as the ratio total distance to total time.
Formula used :
As per question,
Total distance traveled by electron = 2 m
Total time taken by electron = 0.002 s
Now put all the given values in the above formula, we get:
Therefore, the average speed of the electron during this time is 1000 m/s
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5000 units of antigens are present in 0.5 mL of the mumps virus vaccine.
Volume of the vaccine after dilution with water = 2 mL
0.5 mL has 5000 units antigen. So when 0.5 mL was diluted to 2 mL, the final vaccine after dilution would contain 5000 units of antigen.
Units of antigen present in 1 mL vaccine sample
=
Therefore, 2500 units of the antigen will be present in each milliliter, if 0.5 mL of the vaccine is diluted to 2 mL with water for injection.