During a baseball game, a batter hits a high
pop-up.
if the ball remains in the air for 5.47 s, how
high does it rise? the acceleration of gravity
is 9.8 m/s.
answer in units of m.

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?

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.