Please make sure to use the right sig fig Example- (2.5E5)

HQ1.41 Homework. Unanswered. Due Jan 17th, 12:00 AM A substance known as aerogel has one of the lowest known densities of any solid. Around 2004, NASA used aerogel to obtain interstellar dust from the tail of a comet. How many pounds of aerogel are in a cubic foot? The density of aerogel is 3.0 mg/cm3. Do not enter pounds as part of your answer. Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 10") Type your numeric answer and submit