A rock climber's shoe loosens a rock, and climbing buddy at the top of the cliff notices that the rock takes 3.20 to fall to fall to the ground. how high is the rock climber above the ground? How fast was the rock traveling when it hit the ground?

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

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.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?