adbcabcdbaadaa,5,If the earth is aball,why don’It we fall off?The reason (理由)is 1 there is gravity(引力).Gravity is 2 strange force(力).When you slip(滑倒) on something,you never 3 into the air ,but instead,you always fall 4 the ground.Things fall to the earth ...
Two physicists during the nineteenth century both came up with ages for the Sun based on the Sun’s energy coming from [#highlight9]gravitational contraction[/highlight9]. Under the force of gravity, the compression resulting from a collapse of the object must release energy. Ages for Earth ...
One force that helps you move is gravity (重力). Gravity pulls you toward Earth. Why? Earth is bigger and heavier than you are, so you're pulled by Earth's gravity. How does that help you? When you take a step, gravity pulls on your foot.___17___Then, you can move your other...
5.Newton's law ofgravity (重力) explains why everything on earth falls to the ground. 试题答案 在线课程 分析牛顿的万有引力定律定律解释了为什么地球上的一切会落到地面上. 解答答案:gravity 考查翻译填空.根据句意及句子结构,要填入名词,gravity意为"重力",是不可数名词. ...
所以3/8为three eighths;根据句意火星上的重力是地球重力的3/8,在做比较时,用that代替前面提到的不可数名词或可数名词的单数,题干中,火星的重力和地球的重力相比较,所以要用that代替前面出现的不可数名词gravity(重力),of 表示所属关系,译为“...的”,three eighths of that on the Earth译为“地球重力的3/...
People will not fall off the earth because the earth is round. AT BF Gravity holds everything to the earth. AT BF答案 1. 根据The earth is big. It is a big round ball.知道本句正确。 2. 根据最后一段知道是重力的作用,而不是因为地球是圆的。 3. 根据最...
2. What would happen if the gravity on Earth was suddenly turned off? Supposing we could magically turn off gravity. Would buildings and other structures(建筑物)float away? What happened would depend on (依靠) how strongly the things were attached (吸附) to the earth. The earth is moving ...
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Without gravity the body isn’t bearing any weight so there is no need for calcium (钙) which makes bones strong, and it becomes empty into the bloodstream. The research team suggested in future scientists should try to determine if the loss of bone density was only on weight-bearing bones...
Deep beneath the Indian Ocean, that pull weakens to an extreme low, leaving what is considered a massive gravity 'hole' some three million square kilometers in size roughly where the seafloor sinks into a vastdepression. One of the most profound gravitational anomalies on Earth, its p...