A block of aluminum with a mass of 1.95 kg, initially at a temperature of 150.0°C, is in a well-insulated container. Water at a temperature of 28.0°C is added to the container, and the entire interior
A block of aluminum with a mass of 1.95 kg, initially at a temperature of 150.0°C, is in a well-insulated container. Water at a temperature of 28.0°C is added to the container, and the entire interior of the container is allowed to come to thermal equilibrium, where it reaches a final temperature of 66.0°C. What mass of water (in kg) was added? Assume any water turned to steam subsequently recondenses.
Q5: An air conditioner operates like a heat engine in reverse. If Qin denotes the heat removed from the inside of a building, Qout denotes the heat expelled outside the building, and E denotes the electrical energy used by the device, which of the following sketches indicates the correct relationship between these three? Qout Qout Qin E Qin X Qout E Qin Qin E Qout A B C D
A control system has a gain of 10 and the feedback fraction of 0.08 is applied as negative feedback calculate the closed-loop transfer function for the system with (1) positive feedback (2) negative feedback (3) comments on your results
14 Answer the 4 questions below about the following poem. Mother to Son by Langston Hughes Well, son, I'll tell you: Life for me ain't been no crystal stair. It's had tacks in it. And splinters. And boards torn up. And places with no carpet on the floor Bare. But all the time I'se been a-climbin' on, And reachin' landin's. And turnin' corners. And sometimes goin' in the dark Where there ain't been no light. So boy, don't you turn back Don't you set down on the steps 'Cause you finds it's kinder hard. Don't you fall now- For l' se still goin', honey, I'se still climbin'. And life for me ain't been no crystal stair. 1. Who is the narrator? Type Here Det Dans