If you find yourself in a locality where the magnetic declination is "15.° East," in which direction is true North in relation to a compass needle?

What will be an ideal response?


"15° East" means the compass is pointing 15° East of true North. So true North would be 15° WEST of the compass direction.

Physics & Space Science

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Which of the following typically orbit within the disk of our galaxy?

A) stars of spectral types O and B B) globular star clusters C) the Large and Small Magellanic Clouds D) other galaxies

Physics & Space Science

A 10.0-? resistor, 10.0-mH inductor, and 10.0-?F capacitor are connected in series with a 10.0-kHz voltage source. The rms current through the circuit is 0.200 A. Find the rms voltage drop across each of the 3 elements.

What will be an ideal response?

Physics & Space Science

If a person weighs 150 lb on Earth, what will the person weigh on the Moon?

a. 25 lb b. 900 lb c. 150 lb d. 75 lb e. 300 lb

Physics & Space Science

Three long wires parallel to the x axis carry currents as shown. If I = 20 A, what is the magnitude of the magnetic field at the origin?



a.
37 ?T

b.
28 ?T

c.
19 ?T

d.
47 ?T

e.
58 ?T

Physics & Space Science