4.Explain why the temperature stops rising when a liquid is heated to its boiling point and heating continues 5.when water is put into the freezer it turns to ice at 0 degrees. Explain what happens, in terms of energy store, as the temperature continues to fall to -18 degrees.

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

overcharge is the right answer system

-4 on

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