Answer:
<h2>169.96 g</h2>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volume
From the question we have
volume = 97.68 cm³
density = 1.740 g/cm³
mass = 97.68 × 1.740 = 169.9632 g
We have the final answer as
<h3>169.96 g</h3>
Hope this helps you
Answer:
The wind blows wind energy causing the turbine to turn, the rotating shaft works the pump making mechanical energy.
The motion of water moving up from a well is kinetic energy.
Water in the tank, which is positioned 5 feet above the ground level is potential energy
Explanation:
The wind has in it wind energy which is then used to rotate the turbine shaft which is a form of mechanical work and hence possess mechanical energy
Moving water possesses kinetic energy and when this water is kept at some height it possesses potential energy
Answer:
The order of the energy of the photons of given wave will be
= Ultraviolet waves > infrared waves > microwaves
Explanation:
where,
E = energy of photon
= frequency of the radiation
h = Planck's constant =
c = speed of light =
= wavelength of the radiation
We have :
(a) Frequency of infrared waves = ![\nu _1=6.5\times 10^{13} s^{-1}](https://tex.z-dn.net/?f=%5Cnu%20_1%3D6.5%5Ctimes%2010%5E%7B13%7D%20s%5E%7B-1%7D)
(b) Frequency of microwaves= ![\nu _2=9.8\times 10^{11} s^{-1}](https://tex.z-dn.net/?f=%5Cnu%20_2%3D9.8%5Ctimes%2010%5E%7B11%7D%20s%5E%7B-1%7D)
(c) Frequency of ultraviolet waves = ![\nu _3=8.0\times 10^{15} s^{-1}](https://tex.z-dn.net/?f=%5Cnu%20_3%3D8.0%5Ctimes%2010%5E%7B15%7D%20s%5E%7B-1%7D)
So, the decreasing order of the frequencies of the waves will be :
![\nu _3> \nu _1> \nu _2](https://tex.z-dn.net/?f=%5Cnu%20_3%3E%20%5Cnu%20_1%3E%20%5Cnu%20_2)
As we can see from the formula that energy is directly proportional to the frequency of the wave.
![E\propto \nu](https://tex.z-dn.net/?f=E%5Cpropto%20%5Cnu%20)
So, the order of the energy of the photons of given wave will be same as their order of frequencies:
![E_3>E_1>E_2](https://tex.z-dn.net/?f=E_3%3EE_1%3EE_2)
= Ultraviolet waves > infrared waves > microwaves