Halley's Comet Edmond Halley was the first to realize that the comets observed in 1531,1607, and 1682 were really one comet (now called Halley's Comet) that moved around the Sun in an elongated elliptical orbit (see Figure 5.5 ). He predicted that the peanut-shaped comet would reappear in 1757. It appeared in March 1759 (attractions to Jupiter and Saturn delayed its trip by 618 days). More recent appearances of Halley’s Comet were in 1835, 1910, and 1986. It is expected again in 2061. The nucleus of Halley's Comet is relatively small (15 km long. 8 km wide, and 8 km thick). It has a low 2 .2 × 10 14 -kg mass with an average density of about 600 kg /m 3 . (The density of water is 1000 kg /m 3 .) The nucleus rotates once every 52 h. When Halley’s Comet is closest to the Sun, temperatures on the comet can rise to about 77 °C and several tons of gas and dust are emitted each second, producing the long tail that we see each time it passes the Sun. 78 EST Use the velocity change method to estimate the comet's direction of acceleration when passing closest to the Sun (position I in Figure P5.78 ). a. A b B c. C d. D e. The acceleration is zero.
Halley's Comet Edmond Halley was the first to realize that the comets observed in 1531,1607, and 1682 were really one comet (now called Halley's Comet) that moved around the Sun in an elongated elliptical orbit (see Figure 5.5 ). He predicted that the peanut-shaped comet would reappear in 1757. It appeared in March 1759 (attractions to Jupiter and Saturn delayed its trip by 618 days). More recent appearances of Halley’s Comet were in 1835, 1910, and 1986. It is expected again in 2061. The nucleus of Halley's Comet is relatively small (15 km long. 8 km wide, and 8 km thick). It has a low 2 .2 × 10 14 -kg mass with an average density of about 600 kg /m 3 . (The density of water is 1000 kg /m 3 .) The nucleus rotates once every 52 h. When Halley’s Comet is closest to the Sun, temperatures on the comet can rise to about 77 °C and several tons of gas and dust are emitted each second, producing the long tail that we see each time it passes the Sun. 78 EST Use the velocity change method to estimate the comet's direction of acceleration when passing closest to the Sun (position I in Figure P5.78 ). a. A b B c. C d. D e. The acceleration is zero.
Halley's Comet Edmond Halley was the first to realize that the comets observed in 1531,1607, and 1682 were really one comet (now called Halley's Comet) that moved around the Sun in an elongated elliptical orbit (see Figure 5.5). He predicted that the peanut-shaped comet would reappear in 1757. It appeared in March 1759 (attractions to Jupiter and Saturn delayed its trip by 618 days). More recent appearances of Halley’s Comet were in 1835, 1910, and 1986. It is expected again in 2061.
The nucleus of Halley's Comet is relatively small (15 km long. 8 km wide, and 8 km thick). It has a low
2
.2
×
10
14
-kg
mass with an average density of about
600 kg /m
3
. (The density of water is
1000 kg /m
3
.) The nucleus rotates once every 52 h. When Halley’s Comet is closest to the Sun, temperatures on the comet can rise to about
77 °C
and several tons of gas and dust are emitted each second, producing the long tail that we see each time it passes the Sun.
78 EST Use the velocity change method to estimate the comet's direction of acceleration when passing closest to the Sun (position I in Figure P5.78).
Checkpoint 4
The figure shows four orientations of an electric di-
pole in an external electric field. Rank the orienta-
tions according to (a) the magnitude of the torque
on the dipole and (b) the potential energy of the di-
pole, greatest first.
(1)
(2)
E
(4)
What is integrated science.
What is fractional distillation
What is simple distillation
19:39 ·
C
Chegg
1 69%
✓
The compound beam is fixed at Ę and supported by rollers at A and B. There are pins at C and D. Take
F=1700 lb. (Figure 1)
Figure
800 lb
||-5-
F
600 lb
بتا
D
E
C
BO
10 ft 5 ft 4 ft-—— 6 ft — 5 ft-
Solved Part A The compound
beam is fixed at E and...
Hình ảnh có thể có bản quyền. Tìm hiểu thêm
Problem
A-12
% Chia sẻ
kip
800 lb
Truy cập )
D Lưu
of
C
600 lb
|-sa+ 10ft 5ft 4ft6ft
D
E
5 ft-
Trying
Cheaa
Những kết quả này có
hữu ích không?
There are pins at C and D To F-1200 Egue!)
Chegg
Solved The compound b...
Có Không ☑
|||
Chegg
10
וח
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