Acertain heat engine operating on a carnot cycle absorbs 370 j of heat per cycle at its hot reservoir at 145 ∘c and has a thermal efficiency of 26.0 % .

how much work does this engine do per cycle? w =

how much heat does the engine waste each cycle? |q| =

what is the temperature of the cold reservoir? tc =

by how much does the engine change the entropy of the world each cycle? deltas =

what mass of water could this engine pump per cycle from a well 25.0 m deep? m =

the answer for apex is the lowest

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

answer///isobars;