Fluorine has an atomic number of 9. What can you conclude about an atom of fluorine from this fact?

Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?