The energy<span> per </span>photon<span> is proportional to the </span>frequency<span> of the radiation when considered as waves, ie inversely proportional to the </span>wavelength. Double the wavelength<span>, halve the </span>photon energy<span>. This means that long </span>wavelength<span> radiation (radio waves) has low </span>photon energy<span> and so does not penetrate matter.</span>
Answer
C .The final velocity is half of train car B’s initial velocity
Explanation
According to the law of conservation of momentum given by the product of mass and velocity, the velocity will be slightly that of the initial one due to increased mass (double mass). Here at least half of the kinetic energy is lost. Momentum is conserved but kinetic energy is converted to other energy forms after an inelastic collision. Kinetic energy is conserved in elastic collisions.
Two atoms total are in NaCl.
This answer to this question is a rule that is applied to any reaction taken at dynamic equilibrium, with respect to 500 K. In other words, you can say that this reaction is of no use to us -
In a chemical equilibrium, it is known that the forward and reverse reactions occur at equal rates. At this point the concentrations of products and reactants remain constant, or in other words do not change
<u><em>Solution = Option C</em></u>
<u>Answer:</u> The partial pressure of hydrogen is 705.9 mmHg
<u>Explanation:</u>
Dalton's law of partial pressure states that the total pressure of the system is equal to the sum of partial pressure of each component present in it.
To calculate the partial pressure of hydrogen gas, we use the law given by Dalton, which is:
We are given:
Total pressure of the collection tube, = 729.8 mmHg
Vapor pressure of water, = 23.8 mmHg
Putting values in above equation, we get:
Hence, the partial pressure of hydrogen is 705.9 mmHg