24 points
which of the following is an example of biotechnology?

a petroleum-based lubricant used in farming machinery
a driverless solar powered automobile
a robotic probe on mars that can detect water
a mechanical implant that delivers medicine

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.