Think of something you are interested in exploring, and design an experiment. (You will not actually conduct the experiment, so feel free to be creative.) Identify the following aspects of your experiment: 1. Independent Variable 2. Dependent Variable 3. Operational 4. Definition of Subjects within the population 5. Experimental Group 6. Control Group 7. One Potentially Confounding Variable8. Two Methods Used to Control for Bias

How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.