________________ is the closest star to Earth
Fill in the blank(s) with correct word
Sun
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A long straight line of charge has a uniform positive charge per unit length ?. The line is partially enclosed in a long rectangular box of length L and ends of area A, the line running through the center of each end
The electric flux through the surface of the box is
In a laboratory on Earth, all the air is pumped from a large tube. A feather and a steel ball are simultaneously released from rest inside the tube. What happens next?
A. The feather falls and hits the bottom before the steel ball B. The steel ball falls and hits the bottom before the feather C. Both objects float weightless inside the tube D. Both objects fall and hit the bottom at the same time
Relate synchrotron radiation to the central engine of active galaxies
What will be an ideal response?
A transformer only works with AC
a. True b. False Indicate whether the statement is true or false