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College Physics for AP® Courses

Chapter 34

College Physics for AP® CoursesChapter 34

Problems & Exercises

1.

3 × 10 41 kg 3 × 10 41 kg size 12{3 times "10" rSup { size 8{"41"} } `"kg"} {}

3.

(a) 3×1052kg3×1052kg size 12{3 times "10" rSup { size 8{"52"} } `"kg"} {}

(b) 2×10792×1079 size 12{2 times "10" rSup { size 8{"79"} } } {}

(c) 4×10884×1088 size 12{4 times "10" rSup { size 8{"88"} } } {}

5.

0.30 Gly

7.

(a) 2.0×105km/s2.0×105km/s size 12{2 "." 0 times "10" rSup { size 8{5} } `"km/s"} {}

(b) 0.67c0.67c size 12{0 "." "67"c} {}

9.

2 . 7 × 10 5 m/s 2 . 7 × 10 5 m/s size 12{2 "." 7 times "10" rSup { size 8{5} } `"m/s"} {}

11.

6×10116×1011 size 12{6 times "10" rSup { size 8{ - "11"} } } {} (an overestimate, since some of the light from Andromeda is blocked by gas and dust within that galaxy)

13.

(a) 2×108kg2×108kg size 12{2 times "10" rSup { size 8{ - 8} } `"kg"} {}

(b) 1×10191×1019 size 12{1 times "10" rSup { size 8{"19"} } } {}

15.

(a) 30km/sMly30km/sMly size 12{"30"`"km/s" cdot "Mly"} {}

(b) 15km/sMly15km/sMly size 12{"15"`"km/s" cdot "Mly"} {}

17.

960 rev/s

19.

89.999773º89.999773º size 12{"89" "." "999773"°} {} (many digits are used to show the difference between 90º90º)

22.

23.6 km

24.

(a) 2.95×1012m2.95×1012m size 12{2 "." "95" times "10" rSup { size 8{"12"} } `m} {}

(b) 3.12×104ly3.12×104ly size 12{3 "." "12" times "10" rSup { size 8{ - 4} } `"ly"} {}

26.

(a) 1 × 10 20 1 × 10 20 1 x 10^20

(b) 10 times greater

27.

1 . 5 × 10 15 1 . 5 × 10 15 size 12{1 "." 5 times "10" rSup { size 8{"15"} } } {}

29.

0 . 6 m 3 0 . 6 m 3 size 12{0 "." 6`m rSup { size 8{ - 3} } } {}

31.

0.30 Ω 0.30 Ω size 12{0 "." "30"` %OMEGA } {}

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