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

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 Solution

★★★★★

3.40 Rating (166 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

From Eq 2937 see also Eq 2936 we write the torque as r B sin ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

2-P-E-M-M-M (50).docx

120 KBs Word File

Students Have Also Explored These Related 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...

Current Attempt in Progress The figure shows a loop model (loop L) for a diamagnetic material. What is the direction of (a) the loop's net magnetic dipole moment M, (b) the conventional current i in...

part 1 link http://www.walter-fendt.de/html5/phen/magneticfieldbar_en.htm part 2 link http://www.thephysicsaviary.com/Physics/Programs/Labs/FieldFromWire/index.html part 3 link...

E-Physics Tutorial Book Note: I have attached below the lesson for the 3 activities. Thank you so much for your time and effort. Activity 1. Directions: Use the right-hand rule to determine the...

Online Lab: Magnetic Fields Name: ll Date: l:l MW; : section; E Background: All magnets have two opposite magnetic poles: a North Pole and a South Pole. Magnets can exert forces which can either...

E-Physics Tutorial Book Note: I have attached below the lesson for the activity. Thank you so much for your time and effort. Activity 1. Direction: Discuss and elaborate to answer the following...

Page Experiments with Magnets Introduction In this lab, the student will investigate magnetic field direction and magnitude for a permanent magnet and a long straight wire. The student will be...

E-Physics Tutorial Book Note: I have attached below the lesson for the activity. Thank you so much for your time and effort. Activity 1. Directions: Discuss and elaborate based on the readings...

Define and give examples of alternative dispute resolution. how does alternative dispute resolution aid the criminal justice system?

Select two companies who have been public companies for a minimum of 5 years. These two companies should also be primary competitors. You will then perform a financial analysis on both of these...

9.109 The mean salary for a population of women who work in a traditional male job is $80,000. A random sample of 100 women is taken from this population and the sample mean and standard deviation...

Manufactures now account for a majority of exports from the developing world. What factors have limited the benefits that developing countries receive from this progress?

Critics of international trade from developing countries sometimes claim that present trading relationships between developed and underdeveloped countries can be a source of anti development for the...

Traditional free-trade theories are based on six crucial assumptions, which may or may not be valid for developing nations (or for developed nations for that matter). What are these crucial...

Proponents of free trade, primarily developed country economists, argue that the liberalization of trading relationships between rich and poor countries (the removal of tariff and nontariff barriers)...

Briefly summarize the major conclusions of the traditional theory of free trade with regard to its theoretical effects on world and domestic efficiency, world and domestic economic growth, world and...

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...

Suppose that the market can be described by the following three sources of systematic risk with associated risk premiums. The return on a particular stock is generated according to the following...

BID OR ASK! SHARES PRICE Bid 500 $32.50 Bid 300 $3250 Bid 400 $3256 Bid 1,000 $32.60 Bid 400 $32.64 Bid 1,200 $32.64 $32.68 300 Bid 400 $32.78 Ask $32.80 1,000 Ask $32.84 300 Ask $32.84 400 Ask $3288...

Book Co. has 1.8 million shares of common equity with a par (book) value of $1.10, retained earnings of $28.4 million, and its shares have a market value of $50.07 per share. It also has debt with a...