Anegatively charged object has a. lost electrons b. gained electrons c. lost protons d. gained protons

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)

During the past 150 years in the united states, how did energy consumption compare to population growth