1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
enot [183]
3 years ago
15

Why is the absolute magnitude of some stars greater than their apparent magnitude

Physics
1 answer:
SSSSS [86.1K]3 years ago
6 0
<span>answer under the link: http: //briskrange.com/7gAl</span>
You might be interested in
If you are sitting in a bus that is traveling along a straight, level road at 100 km/hr., you are traveling at 100 km/hr too. (a
aleksandr82 [10.1K]

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhh

Explanation:

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

8 0
3 years ago
2. How can people know that they've learned?
photoshop1234 [79]
Answer: People know that they jap e learned by their mistakes or by someone ya being them something
4 0
3 years ago
Density is a physical property that relates the mass of a substance to its volume. A. Calculate the density, in g/mL , of a liqu
Angelina_Jolie [31]

Answer:

A) 0.660 g/ml

B) 1.297 ml

C) 0.272 g

Explanation:

Every substance, body or material has mass and volume, however the mass of different substances occupy different volumes.  This is where density D appears as a  physical characteristic property of matter that establishes a relationship between the mass m of a body or substance and the volume V it occupies:

D=\frac{m}{V} (1)

Knowing this, let's begin with the answers:

<h2 /><h2>Answer A:</h2>

Here the mass is m=0.155g and th volume V=0.000235L=0.235mL

Solving (1) with these values:

D=\frac{0.155g}{0.235mL} (2)

D=0.660g/mL (3)

<h2>Answer B:</h2>

In this case the mass of a sample is m=4.71g and its density is D=3.63g/mL.

Isolating V from (1):

V=\frac{m}{D} (4)

V=\frac{4.71g}{3.63g/mL} (5)

V=1.297mL (5)

<h2>Answer C:</h2>

In this case the volume of a sample is V=0.293mL and its density is D=0.930g/mL.

Isolating m from (1):

m=D.V (6)

m=(0.930g/mL)(0.293mL) (7)

m=0.272g (8)

4 0
3 years ago
Read 2 more answers
Explain how wind erosion changes land forms
valkas [14]

Answer:

the wind carries abrasive materials

Explanation:

such as sand and salt over time theses small particles slowly strip way at the land form sculpting it by eroding the softer layers first

8 0
2 years ago
A space vehicle is traveling at 2980 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The
Strike441 [17]

Answer:

3054.4 km/h

Explanation:

Using the conservation of momentum

momentum before separation = 5M × 2980 Km/h where M represent the mass of the module while 4 M represent the mass of the motor

initial momentum = 14900 M km/h

let v be the new speed of the motor so that the

new momentum = 4Mv and the new momentum of the module  = M ( v + 94 km/h )

total momentum = 4Mv + Mv + 93 M = 5 Mv + 93M

initial momentum = final momentum

14900 M km/h = 5 Mv + 93M

14900 km/h = 5v + 93

14900 - 93 = 5v

v = 2961.4 km/h

the speed of the module = 2961.4 + 93 = 3054.4 km/h

8 0
3 years ago
Other questions:
  • What happens to an electron when energy is added?
    5·1 answer
  • A 0.30-kg object is traveling to the right (in the positive direction) with a speed of 3.0 m/s. After a 0.20 s collision, the ob
    11·1 answer
  • A pitcher accelerates a softball with a force of 12N at 6m/s^2. What is the mass of the softball?
    10·2 answers
  • Your mom is making lunch which forces are acting on your mom
    6·2 answers
  • Solid volumes can always be determined by the displacement method. true or false
    6·1 answer
  • If a roller coaster has 50,000 J of potential energy at the top of the first hill, how much kinetic energy does it have at the l
    13·1 answer
  • How come we can see orange? In simple words.
    14·1 answer
  • A crossbow is fired horizontally off a cliff with an initial velocity of 15 m/s. If the arrow takes 4s to hit the ground, what i
    13·1 answer
  • How can we find velocity?*
    14·1 answer
  • Last question, can someone help please?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!