You place a magnetic compass on a horizontal surface, allow the needle to settle into its equilibrium
Question:
You place a magnetic compass on a horizontal surface, allow the needle to settle into its equilibrium position, and then give the compass a gentle wiggle to cause the needle to oscillate about that equilibrium position. The frequency of oscillation is 0.312 Hz. Earth's magnetic field at the location of the compass has a horizontal component of 18.0μT. The needle has a magnetic moment of 0.680mJ/T. What is the needle's rotational inertia about its (vertical) axis of rotation?
Step by Step Answer:
From Eq 2937 see also Eq 2936 we write the torque as r B sin ...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. The video shows the practical implications of magnetic force around different objects.
Students also viewed these Electricity and Magnetism questions
-
A generator with an adjustable frequency of oscillation is wired in series to an inductor of L = 2.50 mH and a capacitor of C = 3.00F. At what frequency does the generator produce the largest...
-
Can you change your rotational inertia about a vertical axis through the center of your body without changing your total weight? Explain.
-
The needle of a magnetic compass has magnetic moment 9.70 mA#m2. At its location, the Earths magnetic field is 55.0 +T north at 48.0 below the horizontal. (a) Identify the orientations of the compass...
-
Limits from graph In this problem we evaluate limits from the graph. Consider the graph of f given in [Figure 1]. Evaluate each of the following limits (or explain why if the limit does not exist)....
-
Why does Tesco believe it is important to transfer its core capabilities to new ventures? How have the company's partners helped it find success in foreign locations?
-
Although our development of the Keynesian cross in this chapter assumes that taxes are a fixed amount, in many countries taxes depend on income. Lets represent the tax system b y writing tax revenue...
-
Rods \(A B\) and \(A C\) have a diameter of \(20 \mathrm{~mm}\) and are made of 6061-T6 aluminum alloy. They are connected to the rigid collar \(A\) which slides freely along the vertical guide rod....
-
The following is a list of costs that were incurred in the production and sale of boats: a. Commissions to sales representatives, based upon the number of boats sold. b. Cost of boat for grand prize...
-
You took out a fixed-rate mortgage for $317,000. The mortgage has an annual interest rate of 6% (AIR) and requires you to make a monthly payment of $2,675. Part 1 How many months will it take to pay...
-
Sulphur dioxide is emitted at a rate of 2kg/s from the top of a chimney that is 120m high. The plume initially rises vertically a further 10m above the chimney exit, before being convected...
-
The saturation magnetization M max of the ferromagnetic metal nickel is 4.70 x 105 A/m. Calculate the magnetic dipole moment of a single nickel atom. (The density of nickel is 8.90 g/cm3, and its...
-
A Rowland ring is formed of ferromagnetic material. It is circular in cross section, with an inner radius of 5.0 cm and an outer radius of 6.0 cm, and is wound with 400 turns of wire. (a) What...
-
You have used simulation exercises to learn important front office management skills. What are other areas within a hospitality operation for which you think simulations would be a good way to...
-
B3. (a) Assume every buyer purchases only one unit of a product according to the market demand? = 200-2? and the cost structure of a monopoly is ???? = 40 . You may use a graph to help you visualize...
-
your program is working on cost estimates specifically as estimate that uses both the technical exchange of information and the operatonal efffectiveness of that exchange information. this is an...
-
What firms use technology and develop intellectual property that is rare and unique, how does that impact potential competitors?
-
The Distribution. FQ ) , and Expected Inventory. NQ ) . Functions for the Standard Normal Distribution FunctionGoop Incorporated needs to order a raw material to make a special polymer. The demand...
-
Maria Miller is a licensed CPA. During the first month of operations of her business, Maria Miller. Inc, the following events and transactions occurred. May 1 ?Stockholders invested $ 2 0 , 0 0 0...
-
Sly and Suzy own a bar and restaurant that specializes in serving local breweries beverages. They frequently visit their vendors and pay for the meals and entertainment. Sly and Suzy have hired you...
-
What is a manufacturing system?
-
Does the failure of antitrust authorities to include illegal but economically relevant competitors when computing an industry HHI for merger analysis yield an HHI value that is biased upward or...
-
Designers of todays cars have built 5mi/h (8km/h) bumpers that are designed to compress and rebound elastically without any physical damage at speeds below 8km/h. IF the material of the bumpers...
-
In a certain library the first shelf is 10.0cm off the ground, and the remaining four shelves are each spaced 30.0cm above the previous one. If the average book has a mass of 1.5 kg with a height of...
-
The rings of Saturn are composed of chunks of ice that or bit the planet. The inner radius of the rings is 73,000km, while the outer radius is 170,000 km. Find the period of an orbiting chunk of ice...
-
Implement the definition of the function rotate ToLeft(), member of the DArray class, so that it rotates all the elements of the array object to the left by one position. Example: [6, 2, 5, 3] [2, 5,...
-
Write the definition of the of the function is Full() as a member function of the DArray class. The function returns true if the array is full, or false otherwise. Functions.cpp 1 #include "DArray.h"...
-
Write a program that will calculate the trajectory of a golf ball thrown with a velocity of 25.6 m/s at an angle of 0 = 35 relative to the horizontal, from a hill that is 2.1 meters above the ground...
Study smarter with the SolutionInn App