How many seconds would it take a radio wave to travel from the planet Venus to Earth? (average distance from Venus to Earth = 45 million kilometers)

La distancia media de Venus al Sol es de 108.159.260,51 Km

La distancia media de la Tierra al Sol: 149.597.870,691 Km

La diferencia entre una y otra distancia media te dará el promedio de distancia de la Tierra a Venus: 41.438.618,181 Km.

Siendo la velocidad de la luz: 299.792,458 Km / seg

Divides: 41.438.618,181 Km / 299.792,458 Km / seg = 138,22433 segundos

138,22433 seg / 60 seg = 2,30374 minutos

Este tiempo es el que tarda la onda de radio en viajar del planeta Venus a la Tierra.

La velocidad de la onda de radio se conviene en considerarla igual al de la velocidad de la Luz en el vacío.

Explanation:

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  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂

probably not if net force is zero