Technician A says that a low-restriction exhaust system could prevent a back pressure-type vacuum-controlled EGR valve from opening correctly. Technician B says restricted exhaust can cause the EGR valve position sensor to fail. Which technician is correct

the part of the wave he is travelling on is the crest

the higher the current the higher the mag field around it the higher the influence on the compass

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;