Physics tells us that the force of gravity makes objects fall to the ground. The unit of force in physics is the ___. A. kilogram B. newton C. meter D. second 相关知识点: 试题来源: 解析 B。本题考查物理名词。选项 B“newton”是力的单位牛顿,符合物理中力的单位。选项 A“kilogram”是...
Before we left, Li Yanping explainedto me that the force of gravity would change three times on our journey andthat the first change would be the most powerful.在启程以前,李彦平向我解释说,在我们的航行中会有三次引力的改变,...
28. the force of gravity引力 29. get close to 接近,靠近 30. as strong a pull as …和……一样强的拉力 31. cheer up感到高兴,振作起来 32. step forward向前走 33. fall over跌倒 34. now that既然 35. get the hang of掌握,理解,...
Thus, a low (energy)-cost seawater desalination system and methods that operate using gravity force are proposed. In this unit, the conventional high-pressure pumps are substituted by a heavy mass (water tank) to generate the pressure needed for seawater filtration (desalination using reverse ...
This unit of force was named for Sir Isaac Newton. This English scientist has been 1 "the greatest scientist of all time." Newton was born on Christmas Day, 1642, in England. His father was a farmer 2 died three months before he was born. When Newton was three, his mother remarried ...
What is the unit for acceleration due to gravity? How do we use Newton's Second Law? A force acts on a 1.5-kg mass, giving it an acceleration of 3.0 m/s^2. (a) If the same force acts on a 2.5-kg mass, what acceleration would be produced? (b) What is the magnitude of the ...
pounder- (used only in combination) something weighing a given number of pounds; "the fisherman caught a 10-pounder"; "their linemen are all 300-pounders" gee,g-force,g- a unit of force equal to the force exerted by gravity; used to indicate the force to which a body is subjected whe...
They have no conception of what women really feel and want. 2) [U] a process in which someone forms a plan or idea 构思 e.g. the original conception of the book;4. contemplate (Para. 9, line 15) Verb 1) [I, T] to think about something seriously for a period of time深想,细想...
gravity :Gravity is the force that makes things fall to Earth. 重力:重力是使物体落到地球上的力。 There is no gravity in space. 太空中没有重力。 jewel :A jewel is a beautiful stone that is worth a lot of money. 宝石:宝石是一种美丽的石头,它值很多钱。 A diamond is one of the most...
For several billion years after the "Big Bang", the earth was still just a cloud of dust. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so violent that it was not clear whether the shape ...