Why is the final potential energy of a chain of mass, m, hanging down a plain, negative? Nuclear force is always attractive, but in a wider range, it is repulsive. Why? When standing on earth, why do we notice
The device performance is demonstrated by separating a three-sized particles mixture, including 2 m fluorescent particles with an attractive DEP force and both 5 and 10 m nonfluorescent particles with differential repulsive DEP forces. High separation rate of 99% is successfully achieved....
Approximation of the force and stiffness of the negative stiffness magnetic spring (NSMS) The integral expressions of the magnetic force and stiffness are not convenient in establishing the dynamic equation of the system. It is better to simplify the expressions of the magnetic force and stiffness ...
5). In stark contrast, the latter represents one of the strongest attractive interaction energies when glucose is the substrate (Fig. 5), whereas Arg-192 has a significant repulsive contribution. Although Arg-192 in docking assays was shown to be able to interact with glucose by a hydrogen ...
Which of these statements is most likely correct about a weak nuclear force? a. It binds electrons and protons. b. It binds protons and neutrons. c. It is an attractive force. d. It is a repulsive force. e. None of the above. ...
The total interaction energy (Vtot = VEL + VLW) results from electrostatic repulsive interactions (VEL) and attractive London-van der Waals forces (VLW). Based on previous studies (Hwang et al. 2012), the model for two interacting spherical particles with the radii a1 (bacteria) and a2 (...
the electrostatic component of the energy is also attractive (~5 kcal mol−1). Our findings in the previous section strongly suggest that these effects are likely to be enhanced and also critical driving force in enhancing the negative surface charge observed at extended oil–water interfaces...
aThese ions are held together in an ordered three-dimensional array, a crystal lattice, by coulombic attractive forces acting between the net positive or negative charges on the ions and by repulsive forces associated with the electron shells of each ion. 这些离子在离子相连在一个被命令的三维...
Determine whether the following statement regarding magnetism is true or false: Like magnetic poles attract. Why are positive forces considered repulsive and negative forces considered attractive? Explain how rubbing two objects together causes them to have equal ...
The blue color represents strong attractive, green represents van der Waals interaction, and red represents repulsive interaction. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.) Bacteria (E. coli ATCC25922, E. ...