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.

$6×10−116×10−11 size 12{6 times "10" rSup { size 8{ - "11"} } } {}$ (an overestimate, since some of the light from Andromeda is blocked by gas and dust within that galaxy)

13.

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

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

15.

(a) $30km/s⋅Mly30km/s⋅Mly size 12{"30""km/s" cdot "Mly"} {}$

(b) $15km/s⋅Mly15km/s⋅Mly size 12{"15""km/s" cdot "Mly"} {}$

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) $3.12×10−4ly3.12×10−4ly size 12{3 "." "12" times "10" rSup { size 8{ - 4} } "ly"} {}$

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.

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

31.

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