Máy lạnh tiêu tốn công 600kJ và thải nhiệt cho nguồn nóng 2000kJ. Hãy tính hệ số làm lạnh của chu trình?

Which statement describes absolute and apparent brightness? absolute brightness and apparent brightness are identical ways to describe the brightness of a star. absolute brightness and apparent brightness change with the distance from the star to the observer. absolute brightness depends on the distance from the star to the observer, whereas apparent brightness is always the same. absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes with distance from the observer.

Who wants brainliest and free 15 points? answer this correctly and i will do so : ) if you imagine your steering wheel as a clock, which of the following is the ideal way to position your hands on the steering wheel? a. one hand on 6 o'clock b. one hand on 12 o'clock c. 10 and 2 o'clock d. 9 and 3 o'clock

Which of the following is an open question? "where are you from? " "when did you graduate from college? " "why did you leave your last job? " "do you have transportation to work? "