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Questions in Grade Middle-school

[Answered] Which property of multiplication is shown by the equation \( f \cdot 8 = 8 \cdot f \)?

[Answered] Simplify the expression using the distributive property: \[ 9(4y - 7) \]

[Answered] What number is between 0.1 and 0.24?

[Answered] How did the Declaration of Independence change the nature of the American Revolution?

[Answered] True or False: Along a divergent boundary, two plates slip past each other, moving in opposite directions.

[Answered] When we look at a leaf, we see the colors of light that are reflected off its surface. How does the relatively low flow of oxygen in green light affect this?

[Answered] Which of the following is formed at a collision zone? A. Continental rift valley B. Volcanic island chain C. Mountain range D. Deep-ocean trench

[Answered] How do you work out the problem [tex]84 \div 4[/tex]?

[Answered] 1. How does friction affect forward motion? Give an example. 2. Describe two ways to change the frictional force between two solid surfaces. - Change the lubrication between the two surfaces. - Change the normal force between the two surfaces. 3. How does air resistance affect the velocity of a falling object? 4. What two sources of friction do you have to overcome when you are walking? 5. If you push a chair across the floor at a constant velocity, how does the force of friction compare with the force exerted? Explain. 6. If you push a book against a wall hard enough, it will not slide down even though gravity is pulling it. Use what you know about Newton’s laws of motion to explain why the book doesn’t fall.

[Answered] What are some important substances found in food that promote growth and good health?