If a product requires a high elastic modulus, which class of materials can be eliminated from consideration?
(a) Metals
(b) Polymers
(c) Ceramics
(d) Composites
(b) Polymers
Physics & Space Science
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At the ends and along the sides of a glacier, the sediment deposits may form ridges known as
a. deltas. b. levees. c. drifts. d. moraines.
Physics & Space Science
At the North Pole, the vernal equinox Sun ________.
A. circles the pole along the horizon B. is directly overhead for the entire day C. circles the pole 23.5 degrees below the horizon D. circles the pole 23.5 degrees above the horizon E. rises north of east and sets north of west
Physics & Space Science
Which hemisphere on Mars is believed to be older, and what is the evidence?
What will be an ideal response?
Physics & Space Science
A 500-W device is connected to a 120-V ac power source. What is the peak voltage across this device?
A) 4.2 V B) 5.9 V C) 120 V D) 150 A E) 170 V
Physics & Space Science