Scientists have proved that an asteroid or comet impact approximately 65 million years ago caused the extinction of the dinosaurs
Indicate whether the statement is true or false
FALSE
Physics & Space Science
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Some young star clusters contain large numbers of T Tauri stars
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
A heat engine operating between a pair of hot and cold reservoirs with respective temperatures of 400 K and 200 K will have what maximum efficiency?
a. 50% b. 50% c. 40% d. 45% e. 25%
Physics & Space Science
A long nonconducting cylinder (radius = 12 cm) has a charge of uniform density (5.0 nC/m3) distributed throughout its column. Determine the magnitude of the electric field 5.0 cm from the axis of the cylinder
a. 25 N/C b. 20 N/C c. 14 N/C d. 31 N/C e. 34 N/C
Physics & Space Science
The volcanoes of the Hawaiian Islands are
A) strato-volcanoes. B) composed of andesite. C) shield volcanoes. D) cinder cones.
Physics & Space Science