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
Harlamova29_29 [7]
3 years ago
13

What is the evidence that a large fraction of the matter in the universe is invisible?

Physics
1 answer:
Mazyrski [523]3 years ago
7 0

Answer:

the gravity required for stars and galaxies to orbit is much more than they produce, this leads us to believe there is invisible dark matter.

You might be interested in
Technician A says that disc brakes are self adjusting and the brake pedal height should not become lower as the disc brake pads
maks197457 [2]

Answer:

c. Both Technicians A and B

Explanation:

Disc brakes are self-adjusting because the pistons in the brakes are much larger in diameter than the ones in the master cylinder. If the brake pistons retracted into their cylinders, it might take several applications of the brake pedal to pump enough fluid into the brake cylinder to engage the brake pads.  The height of the brake pedal is also necessary because if they become lower the disc brake pads will wear, this is why self-adjustment is important and disc brake pads usually have a piece of metal on them called a wear indicator to warn of wearing. Also when disc break pads wear, the fluid level in the master cylinder drops, armed with this knowledge of low master cylinder fluid level one can inspect the disc pads for wear.  Thus both Technicians A and B are correct.

6 0
3 years ago
A meteor is moving at a speed of 60000 km/h. What is its speed in m/s?
8_murik_8 [283]
Speed is 16666.667 m/s
6 0
4 years ago
If a triangle is a right triangle, then the other two angles must be acute. true or false
skelet666 [1.2K]
That depends on which angle you picked first, because that determines
which angles "the other two" are.

If you picked the right angle (90°) first, before you asked the question,
then the other two are acute angles, and they're also complementary
5 0
4 years ago
Which of the following measurements involve a direction? ( select all that apply)
gavmur [86]
The answer is A, D (Apex)
5 0
3 years ago
Read 2 more answers
A material is nonmagnetic and gaseous and does not conduct heat or electricity. It will, however, react with other elements. It
topjm [15]

Answer:

The correct option is: Nonmetal

Explanation:

Non-metals are the chemical elements that are generally present in the gaseous state at room temperature and have low electrical and thermal conductivity. These elements are non-magnetic and tend to have low density, boiling point and melting point. Non-metals have high electronegativity and ionization energy and react by sharing or gaining electrons from the other elements.

<u>Therefore, the given material is most likely a non-metal.</u>

8 0
3 years ago
Other questions:
  • What two variables affect how loud you hear sound?
    13·1 answer
  • Plane is flying east at 33m/s an airplane is also being carried due north at 12 m/s by the wind what is the planes resultant vel
    9·1 answer
  • The intensity of electromagnetic waves from the sun is 1.4kW/m2 just above the earth's atmosphere. Eighty percent of this reache
    8·1 answer
  • The lower atmosphere is mostly warmed by radiated heat from Earth's surface. However, water heats up and cools down more slowly
    15·2 answers
  • A single-slit diffraction pattern is formed on a distant screen. If the width of the single slit through which light passes is r
    12·1 answer
  • Sliding a box is work against friction. Answer in short.​
    15·1 answer
  • The interference between the two wave pulses shown above will
    13·1 answer
  • What are some reflexes in newborns and infants from 0 to 2 y/o?
    14·1 answer
  • Which graph represents the relationship between the magnitude of the gravitational force exerted by earth on a spacecraft the di
    14·1 answer
  • On the moon, a freely falling object has an acceleration due to gravity of -1.6 m/s2. If you were to drop a penny, what distance
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!