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What is the sound intensity of a whisper at a distance of m, in W/m 2? Math Homework Done for You! As soon as you apply for help to our service, one of our colleagues will contact you in a flesh as we provide 24/7 support for all our clients. What is /r/engineering for?. 1) Sharing information, knowledge, experience related to the principles and practice of all types of engineering: civil, structural. I know that a whisper is approximately 20 dB and P = 10-10 W/m 2. Join Physics Forums Today! The friendliest, high quality science and math community on the planet! Posts should be pertinent and generate a discussion about physics. Everyone who loves science is here! Encouraged submissions Open-ended discussions. IRC Channel: #physics on chat with us. Please choose a user flair using the 'edit' option next to your username above.. Exclusive homework help delivered by experienced professionals. Affordable and authentic custom written assignments designed for international students. Isn't there a write-up that comes with the lab experiment? What do you know about the ballistic pendulum? When posting homework questions, please use the template that PF provides. The problem statement, all variables and given/known data A. The aim of /r/Physics is to build a subreddit frequented by physicists, scientists, help me concentrate on my homework and those with a passion for physics.