What is the mass number of an element that has 8 protons, 9 neutrons and
7 electrons?

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has: