15 kg object is moving downward at a speed of 20 m/s. If it is currently 3 m above the ground and the gravitational acceleration(g) is 9.8 m/s2 ca lculate the answer​

How many atoms are there in 5.70 mol of mg

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles

Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206