We use long ramps at the back of our school. explain what using the ramps does to the effort force you would need to move a big box of books from the ground to the door. explain the trade-off involved.

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.