Match the following.
1. an object's natural frequency of vibration determined by the physical qualities and dimensions of the object
2. a series of alternating reinforcements and cancellations produced by the interference of waves of different frequencies
3. a harmonious sound created by the interference of waves
4. the characteristics by which the ear distinguishes between sounds with the same frequency and amplitude
5. a discordant sound created by the interference of waves
6. the tendency of an object to vibrate at a maximum amplitude at specific frequencies resonance
7. multiples of the fundamental frequency that are produced by a musical instrument
a. beats
b. consonance
c. dissonance
d. harmonics
e. resonance
f. frequency
g. timbre

The consumption of fossil fuels could be

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

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.