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# Homework Help: Kinetic energy of water vs ice

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Accept answers at your own risk. We use automoderator for a few things. It may delete a post erroneously. We ban all bots. I am having problems dealing with the following problem. I am stuck on the first part and I know that I need to use the formula:. I am having troubles determining what exactly omega in this case, I have used "w". What force did the muscles exert to cause the arm to rotate if their effective perpendicular lever arm is 4. Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

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Those who spam us will be banned. Posting of quizzes or lists of questions. Copied questions without context or explanation. Now since the balll after rebound didnt go back to 80 cm some energy must have been lost as heat light.. You need to be a member in order to leave a comment. Sign up for a new account in our community. Already have an account? Posted March 28, I used the kinematic equations To first find mass from the k. I attached my working. Share this post Link to post Share on other sites.

Posted March 28, edited. Calculations refer to the position of the centre of gravity of the ball. They give you the ball diameter because this is not negligable. So how far does the ball fall, ie what is its loss of PE? Edited March 28, by studiot.

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Kinetic Energy. Kinetic Energy is the amount of energy an object has due to its motion. This can be represented by the amount of energy of a ball rolling across the floor. The kinetic energy of an object .