Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

A watch manufacturer claims that its watches gain or lose no more than 8 seconds in a year. How accurate is this watch, expressed as a percentage?

$3 \times 10^{-5} \%$

Physics 101 Mechanics

Chapter 1

Introduction, Measurement, Estimating

Physics Basics

Rutgers, The State University of New Jersey

Simon Fraser University

University of Winnipeg

McMaster University

Lectures

04:16

In mathematics, a proof is a sequence of statements given to explain how a conclusion is derived from premises known or assumed to be true. The proof attempts to demonstrate that the conclusion is a logical consequence of the premises, and is one of the most important goals of mathematics.

09:56

In mathematics, algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis. In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics.

01:28

A watch manufacturer claim…

01:13

Look at the second hand of…

01:23

A certain pendulum clock (…

02:06

At what speed does a clock…

01:17

What are quartz clocks? Wh…

our question, says a watch manufacturer claims that its watches gain or lose no more than eight seconds in a year. How accurate is this watch expressed as a percentage. Okay, so I wrote down what were given were given the accuracy of the watch, which I write. A Sigma tea is equal to plus or minus eight seconds for the year. Okay, and then the time is total is equal to one year. Then the question is, what is the accuracy? And it wants us to express this as a percentage. So the percent accuracy here, which I'm just going to write as percent, eh of the watch. It's equal to, well, eight seconds per year, which is the accuracy of the watch. And then we need to convert this year's in two seconds. Well, we can do that by multiplying it by one year for every 300 and 65 complaint to five days. Okay, and, uh, let's go ahead. Make this five look like a five. Okay, three and 65.25 days, right. And that's in one year. And then we need to convert that days into seconds. And there are about 8,000. I'm sorry. 86,400 seconds in a day. So 86,000 400 seconds in one day. Okay. Now, well, we Can you erase this part here because we don't know. That's just a state to have that extend to far. Now we multiply this by 100% because we want our ratio to be expressed in terms of percent. Good. So if you carry out this calculation, you will find that this is equal to approximately three times 10 to the minus 5%. Okay, we can box that in as our solution.

View More Answers From This Book

Find Another Textbook

01:18

(I) At highway speeds, a particular automobile is capable ofan accelerat…

00:41

If the contraction of the left ventricle of the heart lasts 250 $\mathrm{ms}…

05:44

$\bullet$$\bullet$$\bullet$ A charge $+Q$ is located at the origin and a sec…

06:15

A rifle shoots a 4.20 g bullet out of its barrel. The bullet has a muzzle ve…

02:41

How many protons and how many neutrons are there in a nucleus of (a) neon, $…

00:48

$\bullet$ A 7300 $\mathrm{N}$ elevator is to be given an acceleration of 0.1…

03:25

Tuning a cello. A cellist tunes the C-string of her instrument to a fundamen…

05:51

A spherical pot of hot coffee contains 0.75 L of liquid (essentially water) …

05:07

Human biomechanics. The fastest served tennis ball, served by "Big Bill…

05:26

$\bullet$$\bullet$ Two point charges arelocated on the $y$ axis as $\mat…