Although all known stars appear to rise from the eastern horizon, astronomers might someday discover a star that will rise from the western horizon.
Answer the following statement true (T) or false (F)
False
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Magnetic fields enhance the collapse of a gas cloud in star formation with bipolar flows
Indicate whether the statement is true or false
A 0.16 pF parallel-plate capacitor is charged to 10 V. Then the battery is disconnected from the capacitor. When 1.00 × 107 positive charges of magnitude |e| are now placed on the positive plate of the capacitor, the voltage between the plates changes by
A. ?5.0 V. B. ?1.1 V. C. 0 V. D. +1.1 V. E. +5.0 V.
Imagine that the sun began glowing half as bright at all visible wavelengths, but glowed much brighter in the infrared. How would this look to us, and why?
What will be an ideal response?
A convex mirror has a focal length of ?20 cm. What is the object distance if the image distance is ?10 cm?
a. 10 cm b. 40 cm c. 60 cm d. 20 cm e. 30 cm