Consider an infinite uniform sheet in the r-y plane carrying positive current in the positive z direction. 2. let the sheet have current density ? a/m (so a slice of it 1 m wide will carry amperes). choose an amperian path that is a rectangle in the y-: plane (or at z 0), of any width you choose in y, going fror the magnetic field at a distance h from the current sheet. use symmetry arg calculate the circulation on the top and bottom sides of the rectangle, and consider the relationship between the field and the line element on the front and back sides of the rectangle. (hint: b ldi) note that by varying h, you have solved the field everywhere in space for this sheet of current.

  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

the answer is a)

mark brainliest

the total distance traveled by the car is

30km + 49km = 79 km .