Physics, 18.01.2020 22:31 brianquinnholop6049c
Drill bits are attached to power drills to make holes. drill bits are made of {blank 1} because they’re hard and resistant to corrosion. the bodies and handles of power drills are made of {blank 2} because they’re good insulators.
blank 1
-alloys
-ceramics
-composites
blank 2
-alloys
-composites
-plastics
Answers: 3
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Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.
Answers: 1
Drill bits are attached to power drills to make holes. drill bits are made of {blank 1} because they...
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