Why should the youngest stars be made of the heaviest elements?
What will be an ideal response?
With each generation of supernova, the interstellar medium is showered with a larger abundance of the heavy elements forged in the giant cores and blown back into space with their explosions.
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In ancient times, constellation boundaries were well defined
a. True b. False Indicate whether the statement is true or false
Matter Waves: What would be the de Broglie wavelength for 1-g object moving at the earth's escape speed 25,000 mph (about 11 km/s)? (h = 6.626 × 10-34 J ? s)
Fill in the blank(s) with the appropriate word(s).
When the flow of air over an object is laminar, ________ drag is created on the object.
Fill in the blank(s) with the appropriate word(s).
Charge Q1 = 6.0 nC is at (0.30 m, 0), charge Q2 = -1.0 nC is at (0, 0.10 m), and charge Q3 = 5.0 nC is at (0, 0)
What are the magnitude and direction of the net electrostatic force on the 5.0-nC charge due to the other charges? (k = 1/4??0 = 8.99 × 109 N ? m2/C2)