Example: tourism industry
Making Waves
Found 2 free book(s)1 FUNDAMENTALS OF ACOUSTICS - WHO
www.who.intany temperature and any gas. Alternatively, making use of the equation of state for gases, the speed of sound may be written as: where Tk is the temperature in K, R is the universal gas constant which has the value 8.314 J per mole K, and M is the molecular weight, which for air is 0.029 kg/mole. For air, the ratio of specific heats, , is 1.402.
Basic Preparedness - FEMA
www.fema.govwaves. Leave freezers and re-frigerators plugged in unless there is a risk of fl ooding. Gather your family and go if you are in-structed to evacuate immediately. Let others know where you are going. Leave early enough to avoid being trapped by severe weather. Follow recommended evacuation routes. Do not take shortcuts; they may be blocked.