an orthodontic spring, connected between the upper and lower jaws, is adjusted to provide no force with the mouth open. when the patient closes her mouth, however, the spring compresses by 6.0 mm.

Aballet student who learns with the of his instructor is demonstrating learning.

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.

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?