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Learn how to calculate acceleration using our ramps with the formula A=(Vf-Vi)/t. Discover the principles of change in speed and explore elements of the day: Dysprosium and Holmium. Understand the significance of these minor elements in various applications like neodymium magnets and MRI machines. Tonight's homework involves describing velocity, and preparation for the Chapter 4 test on Tuesday. Stay tuned for an engaging agenda!
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Warm up 02-27-14 • Question: How do you calculate acceleration using our ramps? • Answer: • A = Vf – Vi / t • (Speed B – Speed A) / time AB • Goal: I will use the motion sensors to learn about change in speed.
Element of the day • 66 – Dysprosium – Dy • Dysprosium’s name comes from the Greek word that means “hard to get at” • Dysprosium is a minor element in the alloy terfenol. It is also a minor element in neodymium magnets, and it is in certain light bulbs as dysprosium iodide, but there aren’t many primary uses for it.
Element of the day • 67 – Holmium – Ho • Holmium is used in MRI machines to strengthen and concentrate magnetic fields. • Holmium is also used in laser surgery.
Warm up • How fast am I moving? • Describing velocity • Tonight’s HW • Pg CC-DD • Ch 4 test Tuesday Agenda / HW