Changing the tilt of the axis from 23 degrees to 45 degrees would dramatically change the seasons. They would be more extreme. Increasing the tilt angle means a larger section of the earth would experience one season for a longer period. There would be longer and colder winters and likewise hotter and longer summers.
The Otto Cycle
can be used to describe how an internal combustion engine works, which allows
your car to run by just filling it up with gas. <span>Each
of the numbers shown in the figure (1 through 6) represent one stage of
the Otto cycle, or one step of the internal combustion process. The common
automobile engine is called a “4 Stroke Engine” because it has 4 strokes, which
are the Intake Stroke, Exhaust Stroke, Compression Stroke, and Power Stroke.
The “Combustion Process” shown in the Otto Cycle in the figure occurs between
Strokes 3 and 4, and the “Heat Rejection” shown in the figurea occurs between
Strokes 3 and 4.</span>
.Answer:
491.4 nm
Explanation:
The distance between central and first maxima is,

And the distance between screen abnd grating is,

Now the angle can be find as,

Now the grating distance is,

Now with m=1 condition will become,

So,

Therefore the wavelength of laser light is 491.4 nm.
Answer:
(3) mass-energy must be conserved
Explanation:
As we know that gamma rays are mass less and charge less photons which will have sufficient energy.
Now in case of Pair production the gamma photons convert its whole energy into mass by the law of Einstein's mass energy equivalence relation.
As per his relation we can say

here we will have
[tex]\Delta m[\tex] = mass produced
now we also have to think that here the two particles must have a pair of particles and antiparticles so that the combined mass system will have energy equivalent to the energy of gamma photons and also it must follow the conservation of charge
So here it will form an electron and a positron such that total charge will be zero and the energy will be same as energy of gamma photon.