A teacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk -
and pH indicator strips, which measure acidity. The teacher asks the students to put the liquids in order from most
acidic to most basic.
What type of investigation could the students conduct to determine the correct order for the liquids?
The type of liquid is the
The pH is the

What is the role of the ocular lens?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?