Answers: 1
Physics, 21.06.2019 19:30
A33.1 g copper object is launched from a 1.5 m 30° steel incline positioned on the floor by being pulled up a string attached to a 50.0 g mass suspended vertically over a pulley. the object is projected towards a glass table where it lands when it is at the point along its trajectory with the lowest speed. it comes to a halt when it clears the opposite edge of the table. it then falls and lands on 9 physics texts each 5 cm thick that are stacked on the floor on the opposite side of the table. assume that the table does not have a ledge and the rectangular object experiences 0.05 n of air resistance as it falls towards the books. how far and how long did the object travel and how fast does it hit the books. assume that at the moment the copper object leaves the incline, the massless string and ideal pulley break off
Answers: 2
Physics, 22.06.2019 11:00
Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
Answers: 1
Physics, 23.06.2019 06:30
The center of the milky way most likely contains a. empty space. b. a red giant star. c. a globular cluster. d. a supermassive black hole.
Answers: 1
Physics, 23.06.2019 08:30
Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. after chatting for a few minutes, she walks 125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. overall, she takes 10 minutes to do all this. what is mary’s average speed?
Answers: 1
Find the ratio of speeds of an electron and a negative hydrogen ion (one having an extra electron) a...
History, 04.11.2020 03:40
Arts, 04.11.2020 03:40
Health, 04.11.2020 03:40
Advanced Placement (AP), 04.11.2020 03:40
Mathematics, 04.11.2020 03:40
History, 04.11.2020 03:40
Mathematics, 04.11.2020 03:40
History, 04.11.2020 03:40
Mathematics, 04.11.2020 03:40
Biology, 04.11.2020 03:40
Mathematics, 04.11.2020 03:40
Mathematics, 04.11.2020 03:40
Biology, 04.11.2020 03:40
Mathematics, 04.11.2020 03:40
Mathematics, 04.11.2020 03:40