Physics
A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?
Physics
This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?
chemistry
what is the difference between electron affinity and ionization energy?
chemistry
how does the length of time relate to the amount of heat absorbed?
algebra II
4 to the fifth power times 4 to the third power divided by 4 to the sixth power
algebra II
5 3 4 . 4 _______ 6 4 I really need help with this math..I don't understand it and all I have is a worksheet with no examples...I am a 10th grader...any help would be appreciated. Jeremy
4th grade math
the answer is 9
math
how many yards in 48 in. in decimal form rounding to the nearest hundreth
literary
Choose 3 selections from literature that are united into one topic or theme. Your topic can be united by subject, author, genre, style, etc. (requirement) Good speeches will have one clear main topic throughout. My topic is (Remembrance) Thanks for any help.
chemistry
I'm looking for the Lewis structure but not PbCl2. I need the Lezis Structure of PbCl3.
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