PEEK, along with other polymers, such as PPE, PEK, PSU, and PES, is a highperformance _________polymer.
Fill in the blank(s) with the appropriate word(s).
thermoplastic
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During the Dark Ages in Europe, the scientific work of the ancient Greeks was preserved and further developed primarily by scholars in
A) Baghdad. B) Greece. C) Rome. D) India. E) China.
Heat is thermal energy that flows due to
A) molecular speed. B) calorie imbalance. C) temperature differences.
A 1200-kg car is pulling a 500-kg trailer along level ground. Friction of the road on the trailer is negligible. The car accelerates with an acceleration of 1.3 m/s2. What is the force exerted by the car on the trailer?
A) 550 N B) 600 N C) 650 N D) 700 N E) 750 N
Because it is less dense than Jupiter, Saturn is more oblate than Jupiter, even though it rotates slightly more slowly
Indicate whether the statement is true or false