A) A fuel injection nozzle creates small droplets of liquid gasoline at 15.6 C. If the average diameter of the droplets is 350 (Greek mu)m, what is the difference in pressure between the inside and outside of the droplets? ( (Greek mu)m = 10^-6 m) B) What is the difference between the pressure

5) A piece of machinery is enclosed in a sound-dampening cabinet, but you are concerned that the noise level is still too high for nearby workers. You make a measurement of absolute pressure exerted by the sound wave 1 ft outside the (closed) cabinet and find that the sound coming from it is 4.8 Pa. a) What is the sound pressure level at the location where you took the measurement? (i.e., 1 ft from the cabinet). b) You have been asked to draw a circle around the machinery cabinet to indicate the boundary beyond which hearing protection is not required. How far from the machinery must you be to be below the OSHA PEL of 90 dB (provide radius in ft)? c) If a worker spends 3 hrs working near the cabinet, what would their total dose be? Assume: 1) an 8-hr shift, 2) the average distance from the cabinet during the exposed portion of the shift is 1 ft (the same distance as the measurement), and 3) that the other 5 hrs had 0 exposure to noise. d) Should hearing protection be required? If so,…

handwritten please

If 10 m^3 of atmospheric air at 1 degree centigrade temperature are compressed to a volume of 1m^3 at 100°C, what will be the pressure of air?