Acarnot engine is held between a furnace with a constant temperature of 400° c and the outside environment at a constant temperature of 30° c. there is a leak in the system which allows heat to escape directly from the furnace to the environment. the efficiency of the engine, including the effect of the leak, is 0.25. what is the ratio of the heat that flows into the carnot engine (qh1) to the heat that flows directly to the environment (qh2)? qh1/qh2 =

a and c

c is 100% but i am confused in a

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

answer; how far out of place which the object finished relative to the starting location;