Forces that are equal in size but opposite in direction 選擇正確的詞語 1 Balanced 2 Parallel 3 Unbalanced 4 Pull 本學習集中的詞語(20) Distance The length of the segment connecting two points Time interval The amount of time it takes an object to move from its initial position to its final...
When two equal and opposite forces act on an object, the object is said to be in a state of ___. A. motion. B. acceleration. C. equilibrium. D. deformation. 相关知识点: 试题来源: 解析 C。原因:当两个大小相等方向相反的力作用在物体上时,物体处于平衡状态。A 选项运动不符合这种情况;B...
Mention of how machines such as the Large Hadron Collider and the Tevatron work; Political and technical reasons for choosing an electron collider over the proton model; Suggestion that American researchers join international collaborations because of the price of building colliders....
C A The two forces must act on different bodies. B The two forces are always opposite in direction. C The two forces are equal and opposite so that the bodies are in equilibrium. D The two forces are at all times equal in magnitude. 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
: a force that acts on a moving body in the direction of a tangent to the curved path of the body. What are the basic types of stress? The three basic types of stresses are tensile, compressive and shear stresses. The stress developed in a body is said to be simple tension, simple ...
- Thus, sin(90∘)=1, but since the distance r can still be considered, we need to ensure that the net effect leads to zero torque. - If the forces are equal and opposite, the net torque can still be zero. - Conclusion: This option is compatible with the condition of zero net to...
As the magnetic forces due to motion of electron and proton act in a direction perpendicular to the direction of motion, no work is done by these forces That is why one ignores the magnetic force of one particle on another
Newton's third law states that for every action done in this universe, there is equal and opposite reaction. Famous example is rocket which shoots upwards due to the thrust of hot gases coming out of rear. Key Ideas:A mass at rest on a ...
And just because the two forces are equal doesn’t mean that the objects’ movements are equal (or that the objects will stop moving).Consider pushing on a stationary truck. Although the truck is far more massive than you, a stationary truck (unlike a moving one) will never overpower you...
The majority of electrical and mechanical energies are basically reactive energies that can be recovered minus the losses, e.g., from heat generation. This makes it possible to construct very efficient piezo systems, especially for dynamic applications. ΔL0 Nominal displacement Fmax Blocking force ...