Which of the following statements is/are correct? a. One milligram equals one million grams.

b. One thousand milligrams equals one gram.

c. One million milligrams equals one gram,

d. One million milligrams equals one kilogram.

answer this correctly and get points

Yes. The answer is B

Explanation:

The milligram (symbol "mg") is a unit of mass, equal to 1/000 of a gram, and 1/10000000 of a kilogram ( also written "1E-6 kg). Grams : The gram (SI unit symbol: g) is a metric system unit of mass. It is equal to one one-thousandth of the SI base unit, the kilogram, or 1E3 kg

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