Hwk1sol - mughal(kam2843 – Homework 01 – florin –(58140 1 This print-out should have 15 questions Multiple-choice questions may continue on

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

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: mughal (kam2843) – Homework 01 – florin – (58140) 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 10.0 points The distance between the sun and the Earth is about 1 . 5102 × 10 11 m. Express this distance with an SI prefix. 1. 1 . 5102 × 10 − 1 Pm 2. 1 . 5102 × 10 − 1 km 3. 1 . 5102 × 10 − 1 Tm correct 4. 1 . 5102 × 10 − 1 Mm 5. 1 . 5102 × 10 − 1 mm 6. None of these 7. 1 . 5102 × 10 − 1 Gm Explanation: 1 Tm = 1 × 10 12 m , so d = ( 1 . 5102 × 10 11 m ) · 1 Tm 1 × 10 12 m = 1 . 5102 × 10 − 1 Tm . 002 (part 2 of 2) 10.0 points Express this distance in kilometers. 1. 1 . 5102 × 10 6 km 2. 1 . 5102 × 10 8 km correct 3. 1 . 5102 × 10 9 km 4. 1 . 5102 × 10 7 km 5. None of these 6. 1 . 5102 × 10 11 km 7. 1 . 5102 × 10 10 km Explanation: 1 km = 1 × 10 3 m , so d = ( 1 . 5102 × 10 11 m ) · 1 km 1 × 10 3 m = 1 . 5102 × 10 8 km . 003 10.0 points A block of material has dimensions 4 . 8 cm by 7 . 8 cm by 4 cm. Its mass is 596 g. What is the density? Correct answer: 3 . 9797 g / cm 3 . Explanation: Let : ℓ = 7 . 8 cm , w = 4 . 8 cm , h = 4 cm , and m = 596 g . Density is mass per unit volume, so ρ = m V = m ℓ w h = 596 g (7 . 8 cm)(4 . 8 cm)(4 cm) = 3 . 9797 g / cm 3 . 004 10.0 points Convert an acceleration of 4 mi / h / s to m / s 2 . Correct answer: 1 . 78778 m / s 2 . Explanation: Let : a = 4 mi / h / s . a = 4 mi h · s · 1 . 609 km 1 mi · 1000 m 1 km · 1 h 3600 s = 1 . 78778 m / s 2 . 005 10.0 points Convert 44 . 4 ◦ to radians. Correct answer: 0 . 774926 rad. mughal (kam2843) – Homework 01 – florin – (58140) 2 Explanation: Since π rad = 180 ◦ , 44 . 4 ◦ parenleftbigg π rad 180 ◦ parenrightbigg = . 774926 rad ....
View Full Document

This note was uploaded on 02/03/2010 for the course PHY 303K taught by Professor Turner during the Spring '08 term at University of Texas at Austin.

Page1 / 5

Hwk1sol - mughal(kam2843 – Homework 01 – florin –(58140 1 This print-out should have 15 questions Multiple-choice questions may continue on

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