Question

a Pulley is used to lift a load of 180 kg by applying an effort of 90 kg in downward direction calculate the work done by effort applied on the pulley​

Answer 1

Answer:

Mr. Mulholland was one of the landlady’s previous guests and victims. Throughout the story, it becomes clear that he checked into the landlady’s Bed and Breakfast several years ago and has been missing ever since. The story implies that his disappearance was reported far and wide in the newspapers, which is how Billy became familiar with his name. The landlady describes how both Christopher and Gregory—another one of her victims—never left the Bed and Breakfast, and how they are still “on the fourth floor, both of them together” (implying that she killed and stuffed them, just as she did with her pets). This confuses and surprises Billy, because he thought that he was the only guest, but it doesn’t yet cause Billy to suspect that the landlady might have been responsible for their disappearances.