Piston<span> is the part in the combustion engine which moves up and down. Piston is connected in connecting rod which helps to move it.</span>
Spark plugs are used to produce spark.
<span>So the </span>answer is B. Piston
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Answer:
Because there is nothing out in space , the sound waves from one astronaut's whistling can't travel over to the other astronaut's ears.
Mateo drew the field lines around the ends of two bar magnets but forgot to label the direction of the lines with arrows.
Answer
left
Average speed = distance / time
Average speed = 90 km / 0.5 hrs
Average speed = 180 km per hour