Describe two ideas of light held by philosophers and early scientists that were disproven by experiment.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction