weight is the force of gravity acting on an object 求翻译.

weight is the force of gravity acting on an object 求翻译. What kind of force is the force on the student by the backpack?A gravitational force.A nuclear force.An electromagnetic force.三个选项 选哪个? The weight of something is another way of describing the force on ___ by gravity.A it B them Cthat Done我知道答案是A,并求翻译, What is the weight of a penis? The helicopter in the drawing is moving horizontally to the right at a constant velocity.The weight of the helicopter is W=53800N.The lift force L generated by the rotating blade makes an angle of 21.0 degree with respect to the vertical.(a) What is Is underemployed labor force?as the title,can the underemployed be calculated as labor force? 求英文翻译,An object with a weight of 20N is placed on an incline.The ratio of the length to the height of the incline is 5:3.Resolve the gravitational force to find the component parallel to the incline that makes the object slip down and the c There is no death,there is the Force.啥意思 Give two eg of a situation in which the normal force on an object 's weight .Then give an eg of a situation in which there is NO normal force on an object .意思我也不清楚 能解答问题是最好不过的了会多给分 如果没有的话那 love is the force of nature-the brokeback mountain 英语翻译1.what is the formula for momentum,and is it a vector?2.Briefly state Newton's Third Law.3.If a box is sliding to the right,direction is the force of friction on the box?4.Name one difference between mass and weight. SAT物理题The Earth has radius of 6400 kilometers. A satellite orbits the Earth at a distance of 12800kilometers from the center of the Earth. If the weight of the satellite on Earth is 100 kilonewtons, the gravitational force on the satellite in o the letter is just about the right weight翻译一下 翻译一句话：is the work force changing in american life The grenade's blast force is a great ( )is too heavy for the student选择题A.The weight of the schoolbag.B.The bag's weight.C.The schoolbag of the weight what weight is the bag?为什么可以这样用? ____ plastics,the machine is light in weight