Refrigerant analyzers or identifiers are being discussed. Technician A says if the analyzer displays "R-134a," then the refrigerant is 98 percent pure. Technician B says if "HC" is displayed, then the refrigerant is flammable. Who is correct?a. Tech Ab. Tech Bc. Both A and Bd. None

as technology advances, new experiments often expose problems in accepted theories. c

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-lavira: )

mass and volume are the answers you are looking for

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