Phrenology is the study of bumps on the head to predict a person’s personality or behavior. it was developed in the late 1700s when a german doctor, franz gall, discovered that many criminals had particularly bumpy heads. gall believed that the location of a bump determined characteristics such as kind manners, criminal instinct, or musical talent. gall primarily studied criminals or hospital patients with oddly shaped heads, and he ignored any evidence that went against his findings. today, with the use of technology and repeated studies, we know that many different parts of the brain affect a person’s personality and behavior. is phrenology an example of science or pseudoscience? explain your answer.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.