A horizontal pipe of diameter 0.842 m has a smooth constriction to a section of diameter 0.5052 m. The density of oil flowing in the pipe is 821 kg/m3 . If the pressure in the pipe is 7370 N/m2 and in the constricted section is 5527.5 N/m2 , what is the rate at which oil is flowing?

Answer in units of m3/s.

Which notation is used to represent an alpha particle? a. b. c. d.

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?