“远望三号”航天测量船满载时的排水量17000t，当它满载漂浮在海面上时，受到的浮力为______N，测量船空载时受到的浮力______于（填“大”、“小”或“等”）满载时受到的浮力．
船满载时的浮力F浮=G=mg=1.7×107kg×10N/kg=1.7×108N；船空载时受到的浮力就等于空船的重力，因此，小于满载时的浮力．
故答案为：1.7×108；小．
| 补全对话。 | |
B: I'm watching TV, but there are two advertisements there. A: 2 It is necessary to advertise for a new company. B: 3 . And the TV station also benefits from the advertisement. A: By the way, what kinds of advertisement do you like? B: 4 , especially mobile phones. A: Oh, really? Have you seen the LG cell phone advertisement by a Korean actress? And it says "I Chocolate You". B: Of course I have. And I have bought a new cell phone of that type. A: It looks like the advertisement really affects you deeply. B: 5 A: I like advertisement about food because I am fond of food. 1._____ 2._____ 3._____ 4._____ 5._____ |