Which statement accurately describes the ultraviolet catastrophe? O A. A hot lightbulb gave off white visible light instead of ultraviolet

light.

B. An excited gas gave off ultraviolet light rather than an emission

spectrum

O C. A hot lightbulb gave off ultraviolet light instead of white visible

light

D. An excited gas gave off an emission spectrum rather than

ultraviolet light

D

Explanation:

This is a phenomena by a black body. A black body is reckoned to absorb all energy it receives this is because it gives off energy of different frequency ranges hence as the frequency increases the energy rises.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle