Drug misuse is when someone takes medicine in an unintended way, while drug abuse is when a person uses drugs in an illegal way.
Explanation:
Drug misuse simply refers to the inappropriate use of drug for the wrong purpose. The use of drug meant for someone else is a misuse of drug. Drug misuse have serious consequences on the body system. It works like a wrong prescription by a pharmacist.
Drug abuse is the simply the act of not following the instruction guiding the use of the drug on the label. This can lead to overdose of the drug whereby too much quantity of the drug is consumed. Under-dose of the drug also implies that less amount of the drug is used as stated. Drug abuse is very dangerous act and it can lead to serious health defect and addiction problems.
It is simply an illegal way of using drugs.
Both drug misuse and abuse implies that drug use does not follow due medical instructions and consultation.
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As we know that speed of sound is

frequency of sound is

now we know that frequency of sound and speed of sound is related to each other by the following formula




<em>so wavelength of sound is 25 cm or 0.25 m</em>
200/1.5 = 133.33 seconds.
= approximately 2 mins and 13 secs.
Answer:
Part a)

Part b)

Explanation:
Part a)
As we know that the diameter of the planet is given as

now the radius of the planet is given as

now we know that the acceleration due to gravity of the planet is given by the equation

here we know that

now from above equation we have

now we have

Part b)
Now by kepler's law we know that
time period of revolution of planet about the star is given as

so we have

now we have


mula of time period

Now we have
