In cold weather, your hands will be warmer if you wear
A) gloves.
B) mittens.
C) both the same
Answer: B
Physics & Space Science
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When heat and pressure are applied to an igneous rock it turns into
A) another sedimentary rock B) an igneous rock C) a meteorite D) a metamorphic rock
Physics & Space Science
A hot pizza contains heat
Indicate whether the statement is true or false
Physics & Space Science
As you comb your hair, electrons are rubbed onto the comb, which becomes
A) negatively charged. B) positively charged. C) ionized.
Physics & Space Science
A Carnot cycle engine operates between a low temperature reservoir at 20°C and a high temperature reservoir at 800°C. If the engine is required to output 20.0 kJ of work per cycle,
how much heat must the high temperature reservoir transfer to the engine during each cycle? A) 27.5 kJ B) 73.2 kJ C) 39.2 kJ D) 800 kJ E) 20.5 kJ
Physics & Space Science