The magnitude of the attractive force between two ions, a1+ and b1- at equilibrium is 10e-10 n. determine (a) the interionic distance, (b) the ionic radius of b1- if that for a1+ is 0.374229 nanometers, (c) the magnitude of the repulsive force between the two ions at this position, (d) the value of the coulomb's constant b and (e) the minimum potential energy of the bond. assume n = 7 in coulomb’s law

Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.