Answer:
Explanation:
It is given that,
Dimension of the rectangular roof, (6.17 m × 5.92 m)
The maximum net outward force,
The density of air,
The Bernoulli equation is used to find wind speed of this roof blow outward. It is given by :
Here, (since air inside the roof is not moving)
Since,
So, the wind speed of this roof blow outward is 29.13 m/s. Hence, this is the required solution.
Answer:
The value of of the Boltzmann constant is .
Explanation:
Generally the formula for average kinetic energy of a molecule :
where,
k = Boltzmann’s constant
T = temperature = 290 K
Given:
Number of molecules in 1.7 moles:
Average kinetic energy of 1.7 moles = 1.4 MJ =
Average kinetic energy of 1 molecule =
Answer:
Explanation:
1500 m (100cm/m) / 3 cm/yr = 50 000 yrs.
Answer:
1. Our ears can sort out the individual sine waves from a mixture of two or more sine waves, so we hear the pure tones that make up a complex tone.
Explanation:
A complex tone is a sound wave that consist of two or more forms of audible sound frequencies. Sound wave is a mechanical wave that is longitudinal, and could be represented by a sine wave because of it sinusoidal manner of propagation.
A Fourier analyzer can be used to differentiate individual sine waves from a combination of two or more of it; which is as the same function performed by human ear. To the human ear, a sound wave that consist of more than one sine wave will have perceptible harmonics which would be distorted and turn to a noise.
Thus, the human ear makes it possible to hear the pure tones that make up a complex tone.