It is always a good idea to get some sense of the "size" of units. For example, the mass of an apple is about 100 g , whereas a
bicycle is about a hundred times more massive at around 10 kg . Estimate the mass of the objects.
1 answer:
Answer and Explanation:
The estimation of the mass of the objects is as follows
Given that
The mass of an apple is about 100 g
Just like that, we do some estimation of different objects
A dime is around 1 g
A smartphone is about 100 g
An adult male is approx 100 kg
A college physics textbook is around 1 kg
A ripe banana is around 100 g
A small car is around 1,000 kg
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Answer:
Time period between the successive beats will be 0.1703 sec
Explanation:
We have given speed of the sound v = 349 m/sec
Wavelength of piano
Wavelength of piano
So frequency of piano A
Frequency of piano B
So beat frequency f = 455.61 - 449.74 = 5.87 Hz
So time period
So time period between the successive beats will be 0.1703 sec