Three identical metal spheres are labelled a, b and c. initially, a has charge +5q/2, b has charge +3q/2 and c has charge -4q. b is first touched to a, removed, then touched to c and removed. finally, all three spheres are brought into contact with one another simultaneously (a touching b while b is also touching c) before once again being separated. what is the final electric charge on sphere b?

Which transition by an electron will release the greatest amount of energy? oa ob oc od

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.

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g