Two identical silver spheres of mass m and radius r are placed a distance R (sphere 1) and 2R (sphere 2) from the sun respectively. The ratio of the pressure of solar radiation on sphere 2 to that on sphere 1 is
a. 0.25.
b. 0.50.
c. 1.0.
d. 2.0.
e. 4.0.
A
Physics & Space Science
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Two or more forms of the same element that have different bonding structures in the same physical phase are called
a. isobars. b. allotropes. c. isotopes. d. isomers.
Physics & Space Science
According to Heisenberg's uncertainty principle, the more we know about a particle's momentum, the less we know about its
A) kinetic energy. B) mass. C) speed. D) location. E) none of the above
Physics & Space Science
How does the placement of the eyepiece with Newtonian and Cassegrain reflectors differ?
What will be an ideal response?
Physics & Space Science
What is the sum of 1.53 + 2.786 + 3.3 expressed to the correct number of significant figures?
A) 7 B) 7.6 C) 7.62 D) 7.616 E) 7.6160
Physics & Space Science