Get it in writing -- whether it's an estimate or invoice for work performed, it should be detailed and itemized -- stating the charges for each part, labor charges and sales tax. It is not reasonable for you to expect them to name an exact time when they will be there. A 2 to 4 hour time window is reasonable.
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias (ah-RITH-me-ahs). Arrhythmias are problems with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm.
Pace (speed) From Wikipedia, the free encyclopedia. Pace, also called rhythm or tempo, is the rate of activity or movement, such as in running or the flow of events in an entertainment piece.