Talitha is performing an experiment on how plants get water up to their leaves. She adds two drops of blue food coloring to a beaker of water. Then, she hears a fire alarm and heads outside. When Talitha gets back to the classroom, the water in the beaker is all pale blue. She recognizes that the process of has caused the dye to spread evenly through the water.

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

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?