Greg and shawn are studying for a physical science test. greg thinks that the kinetic energy of an object depends on the height and speed of an object, but shawn thinks it depends on the mass of an object. who is right and why?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion