A 0.1 kg popper is placed on a table. When it pops up, it reaches a height of 2.0 meters. What was the initial velocity
of the popper off the table?

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.