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
kap26 [50]
3 years ago
5

Strong evidence for the existence of dark matter comes from observations of

Physics
1 answer:
adoni [48]3 years ago
5 0

Answer:

NASA's Chandra X-ray Observatory and other telescopes such as the Hubble telescope.

Explanation:

Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies.

The above observations have provided the strongest evidence yet that most of the matter in the universe is dark.

You might be interested in
Over the past 100 years earths temperature
pogonyaev

Answer:

<u>Over the last century, the average surface temperature of the Earth has increased by about 1.0o F.</u>

Explanation:

hope this helps you!!

3 0
2 years ago
A family is skating at an ice rink. The 58.2 kg mother is holding the
MariettaO [177]

Answer:

When I got this question I had to draw it out so if you have to do that, draw 3 stick figures holding hands, one representing the mother, father, and daughter. Then you write their weights on top of them and then draw an arrow pointing from the father to the mother.

Explanation:

use this formula :

a_{y} = \frac{Fdadshandy}{msys}

then you fill it in :

a_{y} = \frac{100N}{35.5kg+58.2kg}

a_{y} = \frac{100N}{93.7kg}

a_{y} = 1.0672 m/s^{2}

then you multiply that with the daughters weight :

T_{2} x= m_{2} a_{y}

T_{2} x = 35.5kg (1.0672 m/s^{2})

T_{2} x = 37.89N

and that's the answer :) : 37.89N

5 0
3 years ago
What is the effect on the force of gravity between two objects if the mass of one object remains unchanged while the distance to
Vadim26 [7]

Answer:

The correct answer to the question is

B. It always decreases

Explanation:

To solve the question, we note that the foce of gravity is given by

F_G=\frac{Gm_1m_2}{r^2} where

G= Gravitational constant

m₁ = mass of first object

m₂ = mass of second object

r = the distance between both objects

If the mass of one object remains unchanged while the distance to the second object and the second object’s mass are both doubled, we have

F_{G2} =\frac{Gm_1(2m_2)}{(2r)^2} = \frac{2}{4} \frac{Gm_1m_2}{r^2}

Therefore the gravitational force is halved. That is it will always decrease

4 0
3 years ago
What radiation do remote controls use?
aleksandr82 [10.1K]

Answer:infrared radiation

Explanation:

Most remote control uses infrared radiation

5 0
3 years ago
2. A car is moving south. It is getting faster. In which direction is the acceleration?
notka56 [123]
South it is the same direction the car is already moving
7 0
3 years ago
Other questions:
  • How to describe the motion of an object that has an acceleration of 0 m/s
    11·1 answer
  • How are evaporation and sublimation similar?
    12·2 answers
  • We will look at an example of a banked curve. In this case the normal force provides the needed radial acceleration. This allows
    7·1 answer
  • A 1500 kg car originally moving at 10 m/s crashes into a wall and comes to rest in 0.25 s. What is the magnitude of the impulse
    7·1 answer
  • (The answer is probably obvious for some but I'm not big on science. Not my cup of English-..I'm implying Enlish is more my styl
    9·1 answer
  • 4 (a) (1) Which lens is a converging lens with the greatest power?
    6·1 answer
  • On the periodic table , the vertical columns that extend down the periodic table are called ?
    14·1 answer
  • A resistor has a resistance of 120 12. How much current is in the resistor if there is a potential difference of 12.0V across th
    15·1 answer
  • Simon can climb up the balcony (5.11 m) in 4.2 seconds. What is Simon’s power?
    10·1 answer
  • The rotor in a certain electric motor is a flat, rectangular coil with 80 turns of wire and dimensions 2.50 cm by 4.00 cm . The
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!