I believe it should be B.
Here’s one desctiption:
When the balloon has been rubbed enough times to gain a sufficient negative charge, it will be attracted to the wall. Although the wall should normally have a neutral charge, the charges within it can rearrange so that a positively charged area attracts the negatively charged balloon
Hopefully it’s right!
<span>when air cools , the temperatures drops, the molecules move slowly taking up less space , the amount of space the air takes ups shrinks , or reduce the air pressure
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The particle reach its minimum velocity at time 1.06 sec.
The function is given as
x=5t^3-8t^2+12
Differentiating the above equation with respect to time, to obtain the velocity
dx/dt=v=15t^2-16t
For maximum and minimum values, put dx/dt=0
15t^2-16t=0
On solving the equation, t=0, 1.06
Therefore at time t=1.06 sec, the particle has the minimum value of velocity.
Answer:
C) Annual compounding
Explanation:
The formula for compound interest is given as
Interest = Principle × ( 1 + Interest rate )ⁿ - 1
Here,
n is the number of compounding period
and, the interest varies with the number of periods
Now,
For Annual compounding
Number of compounding period in a year will be 1
For Semi-annual compounding
Number of compounding period in a year will be 2
For Monthly compounding
Number of compounding period in a year will be 12
For Daily compounding
Number of compounding period in a year will be 365
Therefore,
For annual compounding the interest will be least.
You would convert from grams to
moles by using the molar mass of the substance. The answer is letter B. for
example, the molar mass Carbon dioxide is 44.01 g/mol. It means that for 1 mole
of carbon dioxide, it contains 44.01 grams of Carbon dioxide.
