相关知识点: 试题来源: 解析 B。功(work)的公式是 W = Fd,其中 F 是力(force),d 是位移(displacement)。A 选项没有这个公式;C 选项 W = Fv 是功率的公式;D 选项 W = F/t 也没有这个公式。本题考查功的公式对应的英语表达。反馈 收藏
1英语翻译1.Work is done on an object only when a net force acts on the object to displace it in the direction of a component of the net force.2.The amount of work done on an object by a force is equal to the component of the force along the direction of motion times the distan...
英语翻译1.Work is done on an object only when a net force acts on the object to displace it in the direction of a component of the net force.2.The amount of work done on an object by a force is equal to the component of the force along the direct
A force of 7 N acts on an object. The displacement is, say 8 m in the direction of the force. Let us take it that the force acts on the object through the dis
Answer to: A force acting upon an object in the direction of displacement is said to be doing ___ on the object. By signing up, you'll get...
A constant net force acts on an object. Describe the motion of the object.A.constant non-zero velocity.B.constant non-zero acceleration.C.increasing acceleration.D.decreasing acceleration.的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业
When we try to move an object, the force that acts in the opposite direction is usually ___. A. friction B. gravity C. magnetism D. electricity 相关知识点: 试题来源: 解析 A。B 选项重力是向下的力,不一定与移动方向相反。C 和 D 选项磁力和电不一定在移动物体时起反作用。A 选项摩擦力通...
What happens to the direction of an object as an unbalanced force acts on it? What happens when two unbalanced forces act on an object?the object will move in the direction that the stronger force is acting. ... Unbalanced forces acting on an object can change the object's speed, causing...
(7) from an object through the objective (3), wherein a force which acts on an object can be determined on the basis of the detector signal, which force comprises, in a common area of the beam path of the incident laser beam and the back-scattered laser beam, a polarizing beam ...
Therefore, we must establish equivalent forces that when applied to the center of mass yields the same behavior as the vector sum of the forces acting on the object. Because the two external forces are equal, but directed opposite, the net force at the center of mass in the x- and y-...