'Cos 40' presentation slideshows

Work and Energy

Work and Energy. Dr. Robert MacKay. Clark College. Introduction. What is Energy? What are some of the different forms of energy? Energy = $$$. Overview. Work (W) Kinetic Energy (K) Potential Energy (U) All Are measured in Units of Joules (J) 1.0 Joule = 1.0 N m. W. K.

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EXAMPLE 3

Find m B by using the Triangle Sum Theorem. 180 o. = 90 o + 42 o + m B. 48 o. = m B. EXAMPLE 3. Solve a right triangle. Solve the right triangle. Round decimal answers to the nearest tenth. SOLUTION. STEP 1. =. BC 70. tan 42 o. 70 tan 42 o. = BC. 70 0.9004.

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