For this lab we will be using "The Skate Park" simulation from PhET. You can run this simulation by clicking on the following image. This will open in a new window. You need JAVA to run this. If you have trouble, after installing JAVA, try copying and pasting the following link into a new window:
http://phet.colorado.edu/sims/energy-skate-park/energy-skate-park_en.jar
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How high must a 20 kg skater start at to have a kinetic energy of 360 joules at a height of 0 meters?
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What is the total energy of the 60.0 kg skater before she starts
her ride, 12 meters above the ground?
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If you throw a 2.0 kg basketball straight up in the air, at what
height will the basketball have 160 J of potential energy?
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Describe what happens to the bar graphs when you change the amount
of friction. Is the Law of Conservation of Energy still obeyed?

For this lab we will be using "The Skate Park" simulation from PhET. You can run...
For this lab we will be using "The Skate Park" simulation from PhET. You can run this simulation by clicking on the following image. This will open in a new window. You need JAVA to run this. If you have trouble, after installing JAVA, try copying and pasting the following link into a new window: http://phet.colorado.edu/sims/energy-skate-park/energy-skate-park_en.jar --------------------------------- Based upon the equation for potential energy, how do you expect the potential energy to change when the gravity is lower than it...
Problem 9: Go to the PhET website and run the geometrics optics simulationhttp://phet.colorado.edu/sims/geometric-optics/geometric-optics_en.htmlIn the questions below, select all correct answers.In this simulation you will explore converging lenses and how the distance of the object from the lens and the focal length determine the properties of the image formed by the lens.Make sure "Marginal rays" is selected in the box at the top left of the screen.The object is initially 2 f away from the lens. Move the object closer to...
In this homework, you will be using a sound simulation. We will demonstrate this simulation in class. If the simulation is too difficult to install on your computer, do not worry, you should still be able to answer the questions. It is important to know that a lighter shade of gray in the simulation indicates an increase in pressure compared to the undisturbed air pressure and a darker shade indicates an decrease in pressure. The simulation is available online from...