Match the element with its description. (4 points) Column A 1. Sodium : Sodium 2. Silicon : Silicon 3. Bromine : Bromine 4. Argon : Argon Column B a. Nonreactive gas b. Has properties of both metals and nonmetals c. Malleable, soft, and shiny d. Highly reactive gas

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.

Which inventor was often called the lady edison