Figure 2-16 gives the velocity of a particle moving on an x axis. What are (a) the initial and (b) the final directions of travel? (c) Does the particle stop momentarily? (d) Is the acceleration positive or negative? (e) Is it constant or varying? Figure 2-16 Question 1.
Figure 2-16 gives the velocity of a particle moving on an x axis. What are (a) the initial and (b) the final directions of travel? (c) Does the particle stop momentarily? (d) Is the acceleration positive or negative? (e) Is it constant or varying? Figure 2-16 Question 1.
Figure 2-16 gives the velocity of a particle moving on an x axis. What are (a) the initial and (b) the final directions of travel? (c) Does the particle stop momentarily? (d) Is the acceleration positive or negative? (e) Is it constant or varying?
Figure 2-16 Question 1.
Expert Solution & Answer
To determine
To find:
a) Initial direction of travel.
b) Final direction of travel.
c) Does the particle stop momentarily?
d) Is the acceleration positive or negative?
e) Is the acceleration constant or varying?
Answer to Problem 1Q
Solution:
a) Initial direction of travel is negative.
b) Final direction of travel is positive.
c) The particle stops momentarily.
d) The acceleration is positive.
e) The acceleration is constant.
Explanation of Solution
1) Concept:
After reading the graph, we can say that the Initial direction of travel is negative. As compared to that final direction of travel is positive.
As for an instance the velocity of the particle is zero, it indicates that the particle stops momentarily.
From the graph, we can say that the acceleration is positive and constant as the graph is a straight line and ascending in positive direction.
2) Given:
Graph in Fig 2.16.
3) Calculations:
a) When we look at the graph, it is starting below the x-axis, which states that the initial direction of travel would be negative.
b) When we look at the graph, it is ending above the x-axis, which states that the final direction of travel would be positive.
c) When we say it stops momentarily, it means the velocity of the particle is zero for a moment. When we look at the graph, the velocity is zero for one point, so we can say that the particle stops momentarily.
d) Now as the graph is moving from negative velocity to positive velocity, it means the velocity is increasing. From the above statement, we can say that the acceleration is positive.
e) As the graph is a straight line, the acceleration is constant.
Conclusion:
We have been given the graph of velocity vs time. From this graph, we can find the acceleration of the object by finding the slope of the graph. Looking at the nature of the graph, we can also conclude the direction of the acceleration and velocity at any given point.
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Answer the assignment 2 question and show step-by-step solution. This is from Chapter 9 from the book, "The Essential Cosmic Perspective" 8th edition by Bennett, Donahue, Schneider, Voit. I provided some helpful notes to help with the solution.
Answer the assignment 1 question and show step-by-step solution. This is from Chapter 9 from the book, "The Essential Cosmic Perspective" 8th edition by Bennett, Donahue, Schneider, Voit. I provided some helpful notes to help with the solution.
1. A large power cable carries I = 200 A in a straight line East-West for L = 100 m to a device and
returns the same current to the power source in the opposite direction. The return path is also
straight and runs parallel to the first path directly above it.
Up
> North
○ South
West-
East
Device
100 m
Current
Source
Down
The cable is made of copper with resistivity po = 17.2×10 Qm and mass density pcu = 8960 kg/m³.
The cable has a diameter of d = 8.00 cm.
a) What force (magnitude and direction) is exerted on the outgoing (+) cable by the magnetic
field of the earth? Use a value of B = 40.0 μT for the earth's field, and assume it points,
straight north. [1 point]
b) Is there a force between the two cables, and is it attractive or repulsive? Briefly explain your
answer. [0.5 points]
c) How far apart should the two cables be kept so that the force between them is less than 1.0 N?
[1 point]
d) Suppose the cables are set apart at the distance you got in c). How much torque is exerted on
the…
Human Biology: Concepts and Current Issues (8th Edition)
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