While discussing im240 testing:
technician a says the hc, co, and no, readings are
provided in grams per mile.
technician b says the test instruments provide
average emission readings for the complete 240-
second test procedure.
who is correct?

In what direction does an applied force move an object

Decreased sensitivity to an unchanging stimulus is known as

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.