![subject](/tpl/images/cats/fizika.png)
Physics, 08.02.2021 04:30 Alexandra079
Given the following measurements, which one has the highest absolute uncertainty and which one has the highest relative uncertainty?
l=10.0+-.2m
l=7.24m(1.00+-0.04)
l=10.0m(1.00+-0.03)
l=12.5+-0.25m
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00
Jason and mia are both running in a race. as they approach the finish line, you being the physicist that you are decide to time how long it takes them to reach the end of the race. when you start your stop watch (you can take this as time t = 0 s) you notice that mia is an unknown distance d ahead of jason and both are moving with the same initial velocity v_0. you also notice that jason is accelerating at a constant rate of a_j, while mia is deaccelerating at a constant rate of -a_m. jason and mia meet each other for the first time at time t = t_1. at this time (t = t_1) jason's velocity is two times that of mia's velocity, meaning v_j (t_1) = 2v_m (t_1). a) draw the position vs. time graph describing mia's and jason's motion from time t = 0 to time t = t_1. clearly label your axes and initial conditions on your graph. b) draw the velocity vs. time graph describing mia and jason's motion from time t = 0s to time t = t_1. clearly label your axes and initial conditions on your graph. c) how long from when the stop watch was started at t = 0s did it take mia and jason to meet? express your answer in terms of know quantities v_0, a_m, and a_j. d) when the stop watch started at time t = 0s, how far apart, d, were mia and jason? express your answer in terms of know quantities v_0, a_m, and a_j.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 04:20
The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:10
Search coils and credit cards. one practical way to measure magnetic field strength uses a small, closely wound coil called a search coil. the coil is initially held with its plane perpendicular to a magnetic field. the coil is then either quickly rotated a quarter-turn about a diameter or quickly pulled out of the field. (a) derive the equation relating the total charge q that flows through a search coil to the magnetic-field magnitude b. the search coil has n turns, each with area a, and the flux through the coil is decreased from its initial maximum value to zero in a time ât. the resistance of the coil is r, and the total charge is q = iât, where i is the average current induced by the change in flux. (b) in a credit card reader, the magnetic strip on the back of a credit card is rapidly âswipedâ past a coil within the reader. explain, using the same ideas that underlie the operation of a search coil, how the reader can decode the information stored in the pattern of magnetization on the strip. (c) is it necessary that the credit card be âswipedâ through the reader at exactly the right speed? why or why not?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
Holes drilled several kilometers into earthâs crust provide direct evidence about earthâs interior in the form of
Answers: 1
You know the right answer?
Given the following measurements, which one has the highest absolute uncertainty and which one has t...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 20:01
![question](/tpl/images/cats/fizika.png)
Physics, 15.09.2020 20:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 20:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 15.09.2020 21:01