2 years ago

Reflecting telescopes are popular because they're

2 answers:

Crank2 years ago

6 0

C. easier to build than a refracting telescope

Big mirrors used in reflecting telescopes are easier and cheaper to make than big lenses which would cost more because of the quality of glass required to make refracting telescopes

nasty-shy [4]2 years ago

6 0

C. easier to build than a refracting telescope.

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To solve this problem we will apply the principle of conservation of energy and the definition of kinematic energy as half the product between mass and squared velocity. So,

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If a wave has a frequency of 74 Hz and a speed of 444 m/s, what is the wave's wavelength?

DaniilM [7]

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Volgvan

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