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Card 16

Front

what are the uses of high orbit satellites?

Back

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Card 17

Front

if a projectile is launched horizontally, what will the projectile have?

Back

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Card 18

Front

how are frequences between 30MHz and 30GHz affected by the earths atmosphere?

Back

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Card 19

Front

frequencies about 30GHZ?

Back

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Card 20

Front

below 30MHz?

Back

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Card 21

Front

why are satellite dishes curved?

Back

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Card 22

Front

what are the features of coherent waves sources?

Back

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Card 23

Front

what is constructive interference?

Back

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Card 24

Front

what is destructive interference?

Back

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Card 25

Front

what is path difference?

Back

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