When a guitar string is plucked and the wooden guitar vibrates at the same pitch as the string, this is called a refraction b diffraction c resonance d constructive interference

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

Carbon 14 is a naturally occurring stable