What is the displacement of the elephant between 8s and 24s?

- 0.75 m

Explanation:

Using the graph as a reference point, the question is ;

What is the displacement of the elephant between 8s and 24s?

The displacement will be the sum of the slope of the graph within the given time.

From time 8s to 16s, the slope m will be;

Slope = (15 - 6) / (16 - 8)

Slope = 9 / 8

From time 16s to 24s

Slope = (15 - 0) / ( 16 - 24)

Slope = -15 / 8

Displacement = 9/8 - 15/8

Displacement = -6/8

Displacement = - 0.75 m

  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

3. dark matter

empty space could also be a simple vacuum