0
answers
0
watching
53
views
23 Nov 2019

hi. Im from korea and im studying physics in U.S. school but
im really stuck in the four problems.

1. Suppose Madelaine measures the speed of light to be 2.999 x 10^8m/s with
an uncertainty of 0.006 x 10^8 m/s.
- Is this measurement more or less precise than the example on Page21?
(In the page21 example is "the speed of light might range from3.000 x 10^8 m/s to 3.002 x 10^8 m/s. The precision of themeasurement was 0.001 x 10^8 m/s.)
- Is it more or less accurate?

2. Suppose you receive $5.00 at the beginning of a week and spend$1.00
each day for lunch. You prepare a graph of the amount you have leftat the end of each day. Would the slope of this graph be positive,zero, or negative? why?

3. Data are plotted on a graph and the value on the y-axis is thesame for each value of the independent variable. what is the slope?why?

4. Three students use a meterstick to measure the width of a labtable. One records an answer of 84cm, another 83.8, and the third,83.78. Explain which answer is recorded correctly.

Please help me!! these four questions!!!! thank you!

For unlimited access to Homework Help, a Homework+ subscription is required.

Weekly leaderboard

Start filling in the gaps now
Log in