The right answer for the question that is being asked and shown above is that: "Archimedes' principle." The pressure of a gas will increase as the volume of the container decreases, provided temperature does not change. This statement is called <span>Archimedes' principle</span>
Answer:
The value is 
Explanation:
From the question we are told that
The mass of the Ping-Pong is 
The terminal speed is 
The drag force is 
Generally the resultant force on the Ping- Pong is mathematically represented as
when terminal velocity is attained , the resultant force is zero so
=> 
=> 
=>
Answer:
a. Two bodies are rubbed against each other they acquire equal and Opposite charge.
b. Electron are transferred from one object to another when two objects are charged by friction.
c. Lightening rod is a device used to secure tall buildings from the effect of lightning
d. Negative charge is obtained by plastic comb when rubbed with dry hair.
e. Lightning is natural spark discharge on huge scale.
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Ans: A quantity cannot have units until it has dimensions. A quantity that has dimensions must have units. Yes a quantity have units but still be dimensionless for example,unit of angle is radian ,but it is a dimensionless quantity. A dimensionless quantity may have unit.
Answer:
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