A thin metallic shell of radius 40 cm has a charge of -25 nC on it. At the center of the sphere is a point charge of 35 nC. What is the electric field 15 cm from the center of the shell?
a. 
b. 
c. 
d. 
e. 
d.
Physics & Space Science
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As Earth _______________ on its axis, it produces the cycle of day and night
Fill in the blank(s) with correct word
Physics & Space Science
The orbit of the planet Jupiter is an ellipse with the Sun at one focus. What is located at the other focus?
a. the asteroid belt b. Earth c. Saturn d. Jupiter e. nothing
Physics & Space Science
The constellation of Orion is currently visible in the evenings in January. Precession will not affect this and Orion will still be visible in January 13,000 years from now
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
The proper motion of a star is its true velocity through space
Indicate whether the statement is true or false
Physics & Space Science