Part of astrophysics is understanding the history of celestial objects
a. True
b. False
Indicate whether the statement is true or false
True
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What is the equation of motion of a 30. gram mass on a spring of stiffness 3.0 N/m if it is initially displaced 7.7 cm and released?
What will be an ideal response?
If the polarizing angle (the angle at which reflected light is completely plane polarized) of a flat piece of sapphire is 60.5°, what is its index of refraction?
a. 1.97 b. 1.77 c. 1.59 d. 2.36 e. 1.82
The book "De Revolutionibus Orbium Coelestium"
a. describes how Galileo's observations and Kepler's calculations proved the Copernican theory. b. describes the construction of Galileo's telescope and his observations. c. is a dialog written to convince the general public of the merits of the Copernican theory. d. first described the Copernican theory. e. describes the Tychonian theory.
A linear charge of nonuniform density l = bx, where b = 2.1 nC/m2, is distributed along the x axis from x = 2.0 m to x = 3.0 m. Determine the electric potential (relative to zero at infinity) of the point y = 4.0 m on the y axis
a. 36 V b. 95 V c. 10 V d. 17 V e. 15 V