Which of the following has to happen before the eardrum begins to vibrate with the same frequency as the source of the sound waves? a. vibrations have to be transmitted to the fibers of the auditory nerve. b. impulses have to be sent to the brain through the auditory nerve. c. the outer ear has to collect the sound waves and lead them to the middle ear. d. the brain has to interpret the direction from which the sounds are being delivered.

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

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