When does hail form? a. when the air is suddenly heated by a lightning boltb. when frozen rain moves up and down within an anvil cloudc. when many storm cells are arranged in a line along a frontd. when raindrops form out of rapidly condensing water vapor?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Due in 40 explain in terms of frame of reference if you’re inside a moving train everything on the outside can seem to be moving

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?