Physics, 26.07.2019 00:00, quise2ross

An inventor claims to have developed a power cycle having a thermal efficiency of 40%, while operating between hot and cold reservoirs at temperature th and tc 5 300 k, respectively, where th is (a) 900 k, (b) 500 k, (c) 375 k. evaluate the claim for each case

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 15:10, jmac48828

Are aliens real? justify you’re answer.

Answers: 1

continue

Physics, 22.06.2019 18:30, kennettahughley7964

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material

Answers: 2

continue

Physics, 22.06.2019 18:30, kayleahrayne

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)

Answers: 3

continue

Physics, 22.06.2019 19:00, deonnaturner68p7hz7y

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

Answers: 1

continue

Do you know the correct answer?

An inventor claims to have developed a power cycle having a thermal efficiency of 40%, while operati...