Physics, 30.12.2021 14:00, leahmitch612

A heat engine has a temperature of 1800 K. Some of the heat from the engine flows to the surroundings, which are at a temperature of 160 K. What is the approximate efficiency of the engine? 16% 91% 103% 109%.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 19:30, ctuek5990

The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.

Answers: 3

continue

Physics, 22.06.2019 12:30, cardsqueen

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j

Answers: 3

continue

Physics, 22.06.2019 18:00, mgreenamb

Which missing item would complete this alpha decay reaction ? > 228/88ra + 4/2he a.224/96 rn b. 232/90 th c. 230/92 u d. 235/92 u

Answers: 2

continue

Physics, 22.06.2019 20:00, luceridiaaz

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

Answers: 1

continue

Do you know the correct answer?

A heat engine has a temperature of 1800 K. Some of the heat from the engine flows to the surrounding...