Two planes leave from Atlanta, Georgia. One makes a 5.2-hr flight to Seattle, Washington, and the other makes a 2.5-hr flight to Boston, Massachusetts. The plane to Boston averages 44 mph slower than the plane to Seattle. If the total distance traveled by both planes is 3124 mi, determine the average speed of each plane.

Is Planck temperature really the highest temperature?
Actually I was learning about Wien's displacement law. It states that
$\lambda T=2.898\times {10}^{-3}mK$
This is actually a part of Planck's law where the Planck's constant originated.
Now Planck's temperature is given as
$T_p=\sqrt{\frac{h{c}^5}{2\pi G{k}_b^2}}=1.416\times {10}^{32}K$
Now Planck's length is $1.616\times {10}^{-35}m$
Now since the smallest possible wavelength is Planck's length, we can say wavelength of the electromagnetic radiation is Planck's length (Assume the energy doesn't create a black hole).
Now according to Wien's displacement law,
$l_{p}T=2.898\times {10}^{-3}mK$
Now solving this we get $1.79\times {10}^{32}K$, which is higher than the actual Planck's temperature.
Since this displacement law is completely derived from Planck's law, it bit frustrated me. I'm a bit confused. Is it the limit of the displacement law or my flaw?
Please rectify this.
(Sorry if I made any mistake. I'm new to this one. Please explain my mistake. I'm glad to hear that.)

Excitation of vibrational motion of molecules is associated with which region of the electromagnetic spectrum?
Group of answer choices
a)X-ray
b)infrared
c)microwave
d)visible
e)ultraviolet

If an incident photon of a wavelength A has scattered with an angle e after it collides with an electron in an atom, what is the shift in its wave length?

I was curious if antimatter could undergo nuclear fission/fusion with other antimatter. It makes sense, I was wondering if it would work?