Physics, 23.04.2020 18:22 anabellabenzaquen

Astronomers observe galaxies and categorize them according to four different kinds of shapes: elliptical, spiral, barred-spiral, and irregular. In addition to shape, each of the four different galaxy types can be described by other common characteristics. Match the following characteristics with their corresponding galaxy type.

Drag the appropriate items to their respective bins.

A-Round, no disk, very little gas and dust, only old stars.
B-Central bulge, flattened disk, spiral arms, gas, dust, young stars.
C-Elongated central structure, flattened disk, spiral arms, gas and dust, young stars.
D-Asymmetric, often with gas, dust, and young stars.

a. Elliptical galaxy (E):
b. Spiral galaxy (S):
c. Barred-spiral galaxy (SB):
d. Irregular galaxy (Irr):

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 14:30

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.

Answers: 2

Answer

Physics, 22.06.2019 16:20

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g

Answers: 2

Answer

Physics, 22.06.2019 18:00

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.

Answers: 1

Answer

Physics, 22.06.2019 18:00

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c

Answers: 1

Answer

You know the right answer?

Astronomers observe galaxies and categorize them according to four different kinds of shapes: ellipt...

Questions