PHYS-1100 Fall 2010 Exam 1 answer key

PHYS-1100 Fall 2010 Exam 1 answer key - 1. Tissue paper...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1. Tissue paper (aka Kleenex®) has a density of about 250 kg/m 3 . One sheet of tissue is a square about 25 cm on a side, and about 0.1 mm thick. A box of such tissues usually contains about 200 sheets. The mass of all the tissues in such a box would be a) less than 10 g b) more than 10 g but less than 100 g * c) more than 100 g, but less than 0.5 kg d) more than 0.5 kg but less than 1 kg e) more than 1 kg 2. A regulation Olympic swimming pool is 50 m long, 25 m wide, and 2 m deep. One liter of water is equivalent to 10 3 cubic centimeters. How many 2 liter bottles of Barq's® would be needed to fill the pool? a) about 10 4 * b) about 10 6 c) about 10 8 d) about 10 10 e) none of the above are even within an order of magnitude 3. The land area of the "lower 48," that is, the United States not counting Hawaii and Alaska, is about 7.7×10 8 hectares (a hectare is 10 4 m 2 ). A dollar bill is 155 mm long and 65 mm wide. What would it cost (material only, not labor) to cover the whole lower 48 with dollar bills? Interesting but useless fact: The annual gross domestic product of the USA is about $1.5×10 13 a) about $10 9 b) about $10 11 c) about $10 13 * d) about $10 15 e) none of the above are even within an order of magnitude
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4. In the 70 th Edition of the Handbook of Chemistry and Physics , the density of helium is listed as 0.1785 gram/liter. Recall from a previous question that there are 10 3 cm 3 in each liter. What is the density expressed in
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

PHYS-1100 Fall 2010 Exam 1 answer key - 1. Tissue paper...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online