For example, if a buyer obtains a seven-year balloon mortgage to purchase a home, he has seven years of equal monthly payments at a fixed interest rate. This rate is often lower than what the buyer would otherwise be able to secure under a traditional mortgage loan.
When sound reflects off a special curved surface called a parabola, it will bounce out in a straight line no matter where it originally hits. Many stages are designed as parabolas so the sound will go directly into the audience, instead of bouncing around on stage.
Answers. 1  In longitudinal waves , the direction of vibration of particles are parallel to the direction of the wave motion, Thus compression and rarefaction are there in the longitudinal wave in the direction of the wave. In the case of transverse wave , the particles vibrate in a perpendicular direction, hence there are no compression and rarefaction in a transverse wave in the direction of the wave motion . The previous answer speaks about the small compression and rarefaction in any wave in a direction perpendicular to the wave motion .