Concept explainers
(a)
To Explain: Studying an object’s spectrum can allow to determine its surface chemical composition.
(b)
To Explain: Studying an object’s spectrum can allow to determine its surface temperature.
(c)
To Explain: Studying an object’s spectrum can allow to determine whether it is low density cloud or something more substantial.
(d)
To Explain: Studying an object’s spectrum can allow to determine whether object has hot upper atmosphere.
(e)
To Explain: Studying an object’s spectrum can allow to determine whether object is reflecting blue light from a star.
(f)
To Explain: Studying an object’s spectrum can allow to determine whether object is moving away or towards earth.
(g)
To Explain: Studying an object’s spectrum can allow to determine object’srotation rate.

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Chapter 5 Solutions
COSMIC PERSPECTIVE
- An infinitely long line of charge has linear charge density 4.00×10−12 C/m . A proton (mass 1.67×10−−27 kg, charge +1.60×10−19 C) is 18.0 cm from the line and moving directly toward the line at 4.10×103 m/s . How close does the proton get to the line of charge?arrow_forwardat a certain location the horizontal component of the earth’s magnetic field is 2.5 x 10^-5 T due north A proton moves eastward with just the right speed so the magnetic force on it balances its weight. Find the speed of the proton.arrow_forwardExample In Canada, the Earth has B = 0.5 mT, pointing north, 70.0° below the horizontal. a) Find the magnetic force on an oxygen ion (O) moving due east at 250 m/s b) Compare the |FB| to |FE| due to Earth's fair- weather electric field (150 V/m downward).arrow_forward
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- 8 Two moving charged particles exert forces on each other because each creates a magnetic field that acts on the other. These two "Lorentz" forces are proportional to vix (2 xr) and 2 x (vi x-r), where is the vector between the particle positions. Show that these two forces are equal and opposite in accordance with Newton's third law if and only if rx (vi × 2) = 0.arrow_forward6 The force = +3 + 2k acts at the point (1, 1, 1). Find the torque of the force about (a) (b) the point (2, -1, 5). Careful about the direction of ŕ between the two points. the line = 21-+5k+ (i-+2k)t. Note that the line goes through the point (2, -1, 5).arrow_forward5 Find the total work done by forces A and B if the object undergoes the displacement C. Hint: Can you add the two forces first?arrow_forward
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