Answer: 6.125 ft
Explanation:
If this dish has the form of a concave upward parabola and its vertex 
is at the origin, its corresponding equation is:
Where:
is the radius, which can be found by dividing the diameter 
by half. Hence 
is the depth
is the vertex of the parabola, where its base is
Finding :
Finally:
This is where the the receiver should be placed
The answer would be it will be longer than the 656.3 nm. The reduced mass of positronium is less than hydrogen so the photon energy will be a reduced amount of for positronium than for hydrogen. So this will mean that the wavelength will be lengthier.
Answer:
yes
Explanation:
The metal is closer than 20 cm to the magnet which is in the magnetic field.
The same 500N, is the Newton’s Third Law.
Laser means Light Amplication by Stimulated Emission of Radiation.
Uses of laser
DNA sequencing instrument
Cutting and welding materials
Semiconducting chip manufacturing
Military devices
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