A wave travels at 344 m/s and had a wavelength of 0.35 m. its frequency is closest to: 120 Hz
344 Hz
980 Hz
1200 Hz

The pressure in a fluid is affected by which characteristics of that fluid

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?