They are called lubricants.
Solve for "x"
X=force
18/6=x/9
cross multiply
162=6x
x=27
Hope this helps
Answer: 61.1 is the answer I wish this answer help you.
Kinetic Energy = (1/2) (mass) (speed)²
KE = (1/2) (400 kg) (50 m/s)²
KE = (200 kg) (2500 m²/s²)
KE = 500,000 kg-m²/s²
<em>KE = 500,000 Joules</em>
KE = 1/2 Mega-Joule
<em>A fire can spread by radiation when the heat travels through electromagnetic waves in the air. When a fire breaks out, heat will travel in all directions until it reaches an object which will absorb it. When it reaches a combustible material, it will smoulder and eventually burn.</em>