Which type of metal ions tends to absorb light in the visible range?

In pqr m< p=60 m< q= 30 and m

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

When the mercury level in a barometer decreases that atmospheric pressure has