Answer:
The energy of each photon can be transformed into kinetic energy and as this energy does not change, the energy of both photoelectrons remains constant,
Explanation:
The photoelectric effect was explained by Einstein, who assumed that the lz is made up of particles called photons each of a given energy, therefore the photoelectric effect can be explained as a collision of particles.
From this explanation we see that the intensity is proportional to the number of existing particles, when we double the intensity we double the number of particles, but the energy of each particle does not change, therefore if we use the conservation of energy.
The energy of each photon can be transformed into kinetic energy and as this energy does not change, the energy of both photoelectrons remains constant, only the number of electrons expelled changes.
Answer:
The change in the car's momentum is equal to -8910 kgm/s.
Explanation:
Given that,
The mass of a car, m = 990 kg
Initial speed, u = 22 m/s
Final momentum, v = 13 m/s
We need to find the change in the car's momentum. The change in momentum of the car is given by :
So, the required change in the car's momentum is equal to -8910 kgm/s.
A three-year fixed rate lease = $750/month
The new rent in one month = (1+(4/100)) x 750 $/month
= 780 $/month
The rent in one year = 12 x 780 $/month = 9360 $/year
The rent in three years = 9360 $/year x 3 year = $ 28,080
Index of refraction can be calculated using the following formula:
where in a vacuum and "n" is the index of refraction. So we must calculate our velocity by manipulating the index of refraction formula and isolate v and so:
We could go one by one and calculate the velocity or use logic. If you divide by a larger number the output will be a smaller number. Therefore, the answer would be n=1.62 is the slowest.
By that logic when n=1 light would travel the fastest of these four scenarios. The key thing to understand about these problems is that the speed of light slows down as it goes through a medium, in a vacuum it's 3 x 10^ 8 m/s but as it goes through say air or water light slows down.