Disadvantages of aluminum in building cars include:
On average, aluminum is more expensive than steel, as much as two to three times.
Aluminum is not easily welded. If a steel door or panel suffers a crack, often it cam be welded back together easily, primed and repainted so its difficult to tell any body work has been performed. This cannot be done with aluminum. Steel also can be bent and shaped as needed.
Body shops and even dealer service centers are currently equipped for steel work with technicians skilled in the art of welding and steel fabrication. The cost of switching over to an infra structure designed specifically for all-aluminum vehicles or mass production of aluminum vehicles and components would be high.
Answer:

Explanation:
From the question we are told that:
Mass of mixture 
Mass of Barium 
Equation of Reaction is given as

Generally the equation for Moles of Barium is mathematically given by
Since

Therefore

Generally the equation for Mass of Barium is mathematically given by

Therefore


1.00*10^3
You’d need to lower the exponent because rounding to 3 sig figs changes the 9’s to - 1000. Keep the 0’s.
1 km is equal to 100,000 cm

and you need to divide it to 1 km so that you can get rid of the km.
Answer:
Option B: as the distance between the objects increases the Force of gravity decreases