Physics, 16.02.2021 20:30 reycaden

A 5 kg object is moving downward at a speed of 10 m/s. If it is currently 20 m above the ground
a. What is its kinetic energy in J?

Answers: 1

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Answer from: weirdojuwin

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Oh, I'm a yummy, tummy, funny, lucky gummy bear

I'm a jelly bear

'Cause I'm a gummy bear

Oh, I'm a movin', groovin', jammin', singin' gummy bear

Oh yeaoooh

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Bai ding ba doli party

Bamm bing ba doli party

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Oh, I'm a yummy, tummy, funny, lucky gummy bear

I'm a jelly bear

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Explanation:

Answer from: Quest

answer is c

explanation:

Answer from: Quest

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

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