An object thrown vertically upwards reaches a height of 500 m. What was its initial velocity? How long will the object take to come back to the earth? Assume g = 10 m/s²
We can list the data as, height covered or distance covered, s = 500m g = …
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How petrol is formed ?
Petrol, which is also called as gasoline is a very common fossil fuel that we use toda…
A girl stands 170 m away from a high wall and claps her hands at a steady rate so that each clap coincides with the echo of the one before. a) If she makes 60 claps in 1 minute, what value should be the speed of sound in air? b) Now, she moves to another location and finds that she should now make 45 claps in 1 minute to coincide with successive echoes. Calculate her distance for the new position from the wall.
As per the given condition in the question we can list some data as, distance d = 170 …
An echo-sounder in a fishing boat receives an echo from a shoal of fish 0.45 s after it was sent. If the speed of sound in water is 1500 m/s, how deep is the shoal?
The data that can be listed from the sum given are, speed v= 1500 m/s time in which th…
A tuning fork of frequency 170 Hz produces sound waves of wavelength 2 m. Calculate speed of sound.
As per the question the given data is, frequency n = 170Hz wavelength λ = 2m To find …
A certain sound wave in air has a speed 340 m/s and wavelength 1.7 m for this wave, calculate a) the frequency b) the period.
As per the given question we can list the data as velocity v= 340m/s wavelength λ = 1.…
The speed of water is 2m/s through a pipe of internal diameter 10 cm. What should be the internal diameter of nozzle of the pipe if the speed of water at nozzle is 4 m/s?
The given data that can be listed from the question is, To find, internal diameter S…
What is reverberation
S ound produced in auditorium or any big hall persists for sometime due t…
Distinguish between elasticity and plasticity
ELASTICITY The property by which a body regains is original shape and size…