Atuning fork vibrates at a frequency of 512 hertz
when struck with a rubber hammer. the sound
produced by the tuning fork will travel through
the air as a
(1) longitudinal wave with air molecules
vibrating parallel to the direction of travel
(2) transverse wave with air molecules vibrating
parallel to the direction of travel
(3) longitudinal wave with air molecules vibrating
perpendicular to the direction of travel
(4) transverse wave with air molecules vibrating
perpendicular to the direction of travel

An object is moving east, and it’s velocity changes from 65m/s to 25m/s in 10 seconds. which describes the acceleration?

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.