Eighty-eight prominent groups of stars in the sky are called the _______________
a. constellations
b. local groups
c. clusters
d. galaxies
a
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A mass of 50. kg is suspended from a steel wire of diameter 1.0 mm and length 11.2 m. How much will the wire stretch? (The Young's modulus for steel is 20 × 1010 N/m2.)
What will be an ideal response?
Which of the following is not considered a fundamental particle?
A) a proton B) an electron C) an up quark D) a neutrino
How large a pressure increase (in ATM) must be applied to water if it is to be compressed in volume by 1.0%? The bulk modulus of water is 2.0 × 10^9 N/m2 and 1 ATM = 1.0 × 10^5 N/m2
a. 50 ATM b. 100 ATM c. 1 100 ATM d. 400 ATM e. 200 ATM
On a weather map, closely spaced circular isobars around a central low pressure area with winds moving counterclockwise about the center may represent
A) approaching fair weather. B) a hurricane. C) an approaching snow storm.