Aman is pulling a 13-kg sled across a flat, snowy surface. he holds the handle of the sled at a 30° angle with the ground.
what is the minimum pulling force (f) to the nearest newton that the man must exert to keep the sled moving? (use the following constants: coefficient of sliding friction = 0.15; acceleration due to gravity = 9.8 m/s2, cos 30 = 0.87.)

a. 9.5 nb. 20 nc. 19 nd. 22 ne. 130 n

Read this excerpt from a room of one's own by virginia woolf: nick greene, i thought, remembering the story i had madeabout shakespeare's sister, said that a woman acting puthim in mind of a dog dancing. johnson repeated thephrase two hundred years later of women preaching. andhere, i said, opening a book about music, we have the verywords used again in this year of grace, 1928, of womenwho try to write music. 'of mlle. germaine tailleferre onecan only repeat dr johnson's dictum. "sir, a woman'scomposing is like a dog's walking on his hind legs. it is notdone well, but you are surprised to find it done at all."which sentence best states the idea that this excerpt to develop? a. women have faced negative attitudes in some areas, but otherareas have always been open to them. b. women have always faced negative attitudes in jobs that weretraditionally dominated by men. c. women had faced negative attitudes in shakespeare's time, but inwoolf's time, these attitudes had improved.,d. women have always faced negative attitudes in music andpainting but not in literature or acting.