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.
When a wave strikes the shore, the energy in the waves is unleashed and can cause erosion of the coastline or destruction of property. In Fig.1 above, the rocks absorb the energy. The waves also give energy to a boat by making it move up and down. During a storm, the energy in the waves may be enough to damage the boat.