ParaGuard intrauterine copper contraceptive prevents pregnancy over 99% of the time. Part is a small IUD that prevents pregnancy for up to 10 years using copper. Talk to your health care provider to see if ParaGuard could be right for you. Wounded Warrior Project offers no-cost programs for post-9-11 veterans at woundedwarriorproject.org.
What is exit velocity? On this episode, Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly explore parabolas, measuring the speed of an object using the Doppler effect, and other physics in baseball.
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Photo Credit: Andrew nyr, CC BY-SA 4.0, via Wikimedia Commons
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