Which topic would be appropriate to cover in a persuasive speech?

Emma measured the maximum displacement of a wave that she made by moving the end of a string up and down what property of a wave was she measured A. Period B. Frequency C. Amplitude D. Wavelength

A car jack allows you to lift up a heavy car. The car jack works because A) you apply a greater force over a longer distance. B) you apply a smaller force over a longer distance. C) you apply a greater force over a shorter distance.

Your teacher burns a piece of steel wool in class, demonstrating the chemical property, flammability. You are curious to see what other things can demonstrate chemical properties. Which of these does not demonstrate a chemical change?

Which of newton's laws could we have used to predict that the forces in parts b and e are equal and opposite?

A ray moving through glass (n = 1.51) passes into acetone (n = 1.36). How much does its velocity change?

What is normal distribution in statistics?

Which of the following water samples would be considered acidic

A linearly-polarized electromagnetic (EM) wave has an electric field with amplitude 1000 V/m. You hold a a linear polarizer in front of it and rotate the polarizer so that all of the EM wave is blocked. You then rotate the polarizer 30 degree.

Let y'=4 x. find all values of r such that y = rx^{2} satisfies the differential equation. if there is more than one correct answer, enter your answers as a comma separated list.

What are the starting materials for nuclear fission