The above equation shows that mechanical energy is equal to the sum of potential and kinetic energies in a macroscopic system. Mechanical Potential Energy Formula The gravitational potential energy of an object can be calculated based on its mass, height (how high it is above the surface of the...
whereE(0)=12mv02+12kx02is the mechanical energy at the initial timet= 0.Equation (10.49)implies that the change of the energy is equal to the work done by the external forceF(t) and the damping force−cx˙. Differentiation ofEq. (10.49)gives the rate of change of the mechanical ...
The potential energy change is equal to the mechanical work made against the plate weight, therefore the efficiency of the energy transformation is相关知识点: 试题来源: 解析 0.6 Computation of the change in potential energy 0.2+0.2 Correct results for efficiency反馈 收藏 ...
21、mechanicalenergy rules supreme, and that's dictating where equilibrium lies.(机械能占据主导地位,他决定了平衡的位置。) 22、This should be a largelymechanicalprocess.(这应该是一个非常机械的过程。)【hao86.com好工具】 23、It is not amechanicalprocedure.(这不是一个机械的过程。) ...
They can absorb large quantities of energy as they transmit a stress equal to their crushing strength. Recently, their mechanical properties have come under increased scrutiny due to applications in nuclear-waste shipment packages. In such an application, the material is subjected to multiaxial state...
This can be physically justified by the fact that the Debye-Waller factor of atoms in polymers is found to have an inverse correlation with its bulk modulus32,35, and also serves as an indicator for glass-transition behavior. We also know that the cohesive energy, which is also related to...
As a consequence of the phase-field model, damage onset occurs whenever W+ exceeds a critical energy scale Wc (proportional to Gc/ξ). Results Anode geometries Here, we describe the reference configurations which were used in our computational study, see Fig. 1. Boundary conditions and material...
b Under an emergency circumstance where the relative velocity between the two satellites is larger than the critical value, the metamaterials become stiff and are able to absorb the excess kinetic energy to avoid shock and damage to both satellites. Full size image In the normal case, the ...
Attempts have been made to correlate this effect with stacking fault energy and it has been shown that the twinning stress of copper-based alloys increases with increasing stacking fault energy. Twinning is also favoured by solid solution alloying in bcc metals, and alloys of Mo–Re, W–Re ...