Their difference lies in the prefix used before each root word, atom. The diatomic molecules are composed only of 2 atoms such as that of the diatomic elements: H2, O2, N2, Cl2, etc. On the other hand, polyatomic molecules are made up of three or mole atoms such as NH4+, H2SO4, etc.
Answer:
1.![\theta=29.84^{0}](https://tex.z-dn.net/?f=%5Ctheta%3D29.84%5E%7B0%7D)
2.![\theta=60.15^{0}](https://tex.z-dn.net/?f=%5Ctheta%3D60.15%5E%7B0%7D)
Explanation:
Polarizes axis can create two possible angles with the vertical.
first we have to find the intensity of first polarizer
which is given as
![I=\frac{I_{0} }{2}](https://tex.z-dn.net/?f=I%3D%5Cfrac%7BI_%7B0%7D%20%7D%7B2%7D)
![I= \frac{655\frac{W}{M^{2} } }{2}](https://tex.z-dn.net/?f=I%3D%20%5Cfrac%7B655%5Cfrac%7BW%7D%7BM%5E%7B2%7D%20%7D%20%7D%7B2%7D)
![I=327.5\frac{W}{m^{2} }](https://tex.z-dn.net/?f=I%3D327.5%5Cfrac%7BW%7D%7Bm%5E%7B2%7D%20%7D)
For a smaller angle for the first polarizer:
According to Malus Law
![I_{2} =I_{1} Cos^{2}(90^{0} - \theta)](https://tex.z-dn.net/?f=I_%7B2%7D%20%3DI_%7B1%7D%20Cos%5E%7B2%7D%2890%5E%7B0%7D%20-%20%5Ctheta%29)
![I_{2} =I_{1} sin^{2}\theta](https://tex.z-dn.net/?f=I_%7B2%7D%20%3DI_%7B1%7D%20sin%5E%7B2%7D%5Ctheta)
![\frac{I_{2} }{I_{1} }=Sin^{2}\theta](https://tex.z-dn.net/?f=%5Cfrac%7BI_%7B2%7D%20%7D%7BI_%7B1%7D%20%7D%3DSin%5E%7B2%7D%5Ctheta)
taking square root on both sides
![\sqrt{\frac{163}{327.5} } = sin\theta](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B163%7D%7B327.5%7D%20%7D%20%3D%20sin%5Ctheta)
![\theta=Sin^{-1}(0.4977)](https://tex.z-dn.net/?f=%5Ctheta%3DSin%5E%7B-1%7D%280.4977%29)
![\theta=29.84^{0}](https://tex.z-dn.net/?f=%5Ctheta%3D29.84%5E%7B0%7D)
For a larger angle for the first polarizer:
According to Malus Law
![I_{2} =I_{1} cos^{2}\theta](https://tex.z-dn.net/?f=I_%7B2%7D%20%3DI_%7B1%7D%20cos%5E%7B2%7D%5Ctheta)
![\frac{I_{2} }{I_{1} }=Cos^{2}\theta](https://tex.z-dn.net/?f=%5Cfrac%7BI_%7B2%7D%20%7D%7BI_%7B1%7D%20%7D%3DCos%5E%7B2%7D%5Ctheta)
taking square root on both sides
![\sqrt{\frac{163}{327.5} } = cos\theta](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B163%7D%7B327.5%7D%20%7D%20%3D%20cos%5Ctheta)
![\theta=Cos^{-1}(0.4977)](https://tex.z-dn.net/?f=%5Ctheta%3DCos%5E%7B-1%7D%280.4977%29)
![\theta=60.15^{0}](https://tex.z-dn.net/?f=%5Ctheta%3D60.15%5E%7B0%7D)
Answer:
0.07756 m
Explanation:
Given mass of object =0.20 kg
spring constant = 120 n/m
maximum speed = 1.9 m/sec
We have to find the amplitude of the motion
We know that maximum speed of the object when it is in harmonic motion is given by
where A is amplitude and
is angular velocity
Angular velocity is given by
where k is spring constant and m is mass
So ![v_{max}=A\sqrt{\frac{k}{m}}](https://tex.z-dn.net/?f=v_%7Bmax%7D%3DA%5Csqrt%7B%5Cfrac%7Bk%7D%7Bm%7D%7D)
![A=V_{max}\sqrt{\frac{m}{k}}=1.9\times \sqrt{\frac{0.2}{120}}=0.07756 \ m](https://tex.z-dn.net/?f=A%3DV_%7Bmax%7D%5Csqrt%7B%5Cfrac%7Bm%7D%7Bk%7D%7D%3D1.9%5Ctimes%20%5Csqrt%7B%5Cfrac%7B0.2%7D%7B120%7D%7D%3D0.07756%20%5C%20m)
Answer:
The quantitative relationship between heat transfer and temperature change contains all three factors: Q = mcΔT, where Q is the symbol for heat transfer, m is the mass of the substance, and ΔT is the change in temperature. The symbol c stands for specific heat and depends on the material and phase. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00ºC. The specific heat c is a property of the substance; its SI unit is J/(kg ⋅ K) or J/(kg ⋅ ºC). Recall that the temperature change (ΔT) is the same in units of kelvin and degrees Celsius. If heat transfer is measured in kilocalories, then the unit of specific heat is kcal/(kg ⋅ ºC).
Explanation:
Answer:
<em>In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.</em>
<em />
<em>In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.</em>
Explanation:
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<u><em>HOPE THIS HELPS</em></u></h2>