FIZIKA FORMULICE SPRAŠEVANJE Flashcards

1
Q

toplotni tok

A

P= Q/t(J/s= W)

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2
Q

gostota toplotnega toka

A

j= P/S( W/m²)

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3
Q

toplotni tok 2. 0

A

p= S k× sprememba T/ d

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4
Q

sevanje (za crno telo)

A

j*= oT⁴

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5
Q

sevanje (za sivo telo)

A

j=E×o×T⁴

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6
Q

entropija

A

sprememba S= Q/T(J/K)

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7
Q

toplotni stroj

A

sprememba W= A+Q(dodana)+ Q(odvzeta)= O|Al-IQ(dodana) I- I Q(oddana) I

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8
Q

izkoristek toplotnega
stroja

A

n= A/ Q(dodana)

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9
Q

izkoristek hladilnega
stroja

A

n= Q(dodana)/ A

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10
Q

izkoristek toplotne črpalke

A

n= Q (oddana)/A

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11
Q

nihajni čas

A

nihajni čas= čas za N nihajev/ število nihajev

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12
Q

frekvenca

A

frekvenca=N/ tn=1/ to(1/ s→ herrz)

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13
Q

lastni nihajni cas in nihajna hitrost vzmetnega nihala

A

čas=2 pi× koren masa/prožnostni koeficient
hitrost=1/ 2 pi× koren masa/ prožnostni koeficient

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14
Q

lastni nihajni cas nitnega nihala

A

t=2 pi× koren dolžina vrvice/g

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