Technician a states that if a vacuum gauge is hooked up to an intake manifold while the engine is idling the needle should bounce for each intake stroke of the pistons. technician b states that if the needle on the vacuum gauge is bouncing it indicates a mechanical problem with the valve train. who is correct?
a. tech a only
b. tech b only
c. both tech a and b
d. either tech a and b

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Determine the maximum r-value of the polar equation r =3+3 cos 0