Which changes will decrease the electric force between two positively charged objects? Select two options.

moving them closer together

moving them farther apart

adding electrons

removing electrons

adding neutrons

removing neutrons

Not all tiles will be usedidentify the element present in each star based on the gaps observed in wavelengths of its light refer to this table containing absorption wavelengths (in nm) of several different elements the table ishelium 447, 502 ,587 ,668carbon 427 ,515, 600 ,678sulfur 425, 565, 639, 675xenon 484, 590, 687calcium 429 ,527, 593, 645silver 421 ,521, 662

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine