Rusting is a chemical change, which forms a new substance which is brittle. A solid that is formed by a chemical reaction.
Answer:
3000 N
Explanation:
We have,
• Mass, m = 1000 kg
• Acceleration, a = 3 m/s²
We have to find force required, F.
F = ma
F = 1000 × 3 N
F = 3000 N (Answer)
Answer
given,
at time t = 10 s moving from left to right speed of particle = 5 m/s
at t = 20 s moving from right to left speed of particle is = 8 m/s
a) acceleration
a = -1.3 m/s²
b) using equation of motion
v = u + at
5 = u - 1.3 × 10
u = 5 + 13
u = 18 m/s
c) v = u + at
0 = 18 - 1.3t
t = 13.85 s
Fractional distillation is the most efficient technique to separate solid benzoic acid mixed with a volatile alkyl halide liquid components.
<h3>Fractional distillation :</h3>
Separating a mixture into its constituent parts, or fractions, is known as fractional distillation. Chemical compounds are separated by heating chemical mixtures to a temperature at which one or more fractions of the mixture evaporate. Distillation is used to fractionate.
Boiling a mixture of liquids results in vapors rising up a glass tube known as a "fractionating column," which is followed by separation. The fractionating column, which is placed between the flask holding the mixture and the "Y" adaptor, improves the separation of the liquids being distilled.
<h3>Uses of fractional distillation :</h3>
Alcohol purification, desalination, crude oil refinement, and the creation of liquefied gases from air are all applications of distillation.
To know more about purification visit :
brainly.com/question/3130146
#SPJ4
