Answer:
The answer to this question is False
<u>Answer:</u> The correct answer is Option 3.
<u>Explanation:</u>
Amplitude of as sound wave is defined as the extent to which the air particles are getting displaced.
Speed of the sound wave is defined as the distance traveled by the sound wave per unit time and is not related to the amplitude of a sound wave.
Wavelength of the sound wave is defined as the difference between two crests or troughs.
Loudness of a sound wave is defined as the size of the vibration which are produced by it. This is closely related to the amplitude of the sound wave.
Pitch is defined as the sensation of the frequency. Higher the frequency, the pitch is also high and vice-versa.
From the above information, the amplitude of a sound wave is most closely related to the sound’s loudness.
Hence, the correct answer is Option 3.
Answer:
The age of the rock is years
Explanation:
We can write the formula for the quantity of material in an exponential decay as:
where is the initial quantity of the material, and is the mean lifetime of the material.
This means that the total material that has decayed is:
The mean lifetime can be obtained from the half-life ( ) by the relationship
For our problem, as there was no Sr-87 present in the rock initially, and its a product of the decay, its abundance will be given by , this means, the total quantity of material that has decayed.
So, our equation for the ratio will be
Working it a little
The half-life of the problem is
So, the age of the rock will be
Answer:
a unit of mass or weight equaling one thousand grams
Answer:
(L: Length, T: Time)
p: Dimension: L; unit: m
q: Dimension: L/T or (L)*(T)^-1; unit: m/s
r: Dimension: L/T^2 or (L)*(T)^-2; unit: m/s^2
Explanation:
since y is distance (Length), make all terms L distance.
p is same as y dimension ==> dimension: L; unit: m (meter)
qt dimension is L ==> q dimension :L/T; unit: m/s
rt^2 dimension is L ==> r dimension : L/T^2; unit: m/s^2