Leandra is baking cookies , and they are ready to come out of the oven . before she takes them out of the oven , she puts her mittens on . why does leandra do this ?

Leandra puts on her mittens because if you do not you will burn your self, due to extremely high temperatures.

Explanation:

d) physical means can be used to separate the components of air.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s