After the first solid grains formed in our solar system, these particles could then grow by the process of ____, the collision and sticking of one particle with another to continue the formation of planetesimals. Each of these has many atoms or molecules
a. Accretion
b. Sublimation
c. Hydration
d. Condensation
e. Vaporization
A
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If the AA designation of an alloy has three digits, it is a(n) _________alloy.
Fill in the blank(s) with the appropriate word(s).
A point charge Q is placed on the x axis at x = ?2.0 m. A second point charge, ?Q, is placed at x = 1.0 m. If Q = 60 ?C, what is the magnitude of the electrostatic force on a 40-?C charge placed at the origin?
A. 16 N B. 27 N C. 32 N D. 11 N E. 3.0 N
Building new telescopes: With current telescopes, we can see galaxies as they existed 1 billion years after the Big Bang. Discuss innovations that could be made with new telescopes in order to see even further
What will be an ideal response?
Which has a greater buoyant force?
1) a huge lead zeppelin 2) a small helium-filled balloon 3) both 4) neither because 5) of its low density. 6) it occupies the greatest amount of space. 7) it occupies the least amount of space. 8) both have comparable densities.