Chapter 1: Q15. (page 18)
The sun, on average, is 93 million miles from the earth. How many meters is this? Express (a) using powers of 10, and (b) using a metric prefix (km).
Short Answer
The results obtained for parts (a) and (b) are and .
/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none}
Learning Materials
Features
Discover
Chapter 1: Q15. (page 18)
The sun, on average, is 93 million miles from the earth. How many meters is this? Express (a) using powers of 10, and (b) using a metric prefix (km).
The results obtained for parts (a) and (b) are and .
All the tools & learning materials you need for study success - in one app.
Get started for free
A typical atom has a diameter of about.
(a) What is this in inches?
(b) Approximately how many atoms are along a 1.0 cm line, assuming they just touch?
Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 s due to human reaction time at the start and stop moments. What is the percent uncertainty of a hand-timed measurement of (a) 5.5 s, (b) 55 s, (c) 5.5 min?
Recent findings in astrophysics suggest that the observable universe can be modeled as a sphere of radiuswith an average total mass density of about. Only about 4% of total mass is due to 鈥渙rdinary鈥 matter (such as protons, neutrons, and electrons). Estimate how much ordinary matter (in kg) there is in the observable universe. (For the light- year, see the Problem19.)
Determine the conversion factor between (a) km/h and mi/h, (b) m/s and ft/s, and (c) km/h and m/s.
Jim stands beside a river and wonders how wide it is. He spots a large rock on the bank directly across from him. He then walks 65 strides upstream and judges that the angle between him and the rock, which he can still see, is atdownstream (See below figure). Jim measures his stride to be about 0.8 m long. Estimate the width of the river.

What do you think about this solution?
We value your feedback to improve our textbook solutions.