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
Karolina [17]
2 years ago
15

Why are dark matter and dark energy described as dark

Physics
1 answer:
zaharov [31]2 years ago
3 0
Dark matter is called dark because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect or emit electromagnetic radiation, and is therefore difficult to detect.
You might be interested in
Which statement is true of the electric field at a distant from the source of charge?
iVinArrow [24]

Answer:

A negative charge, if free to move in an electric field, will move from a low potential point to a high potential point. To move a positive charge against the electric field, work has to be done by you or a force external to the field.

Explanation:

Mark as Brainliest plz!!!

8 0
2 years ago
An emf is induced in response to a change in magnetic field inside a loop of wire. Which of the following changes would increase
goldenfox [79]

Answer:

changing the magnetic field more rapidly

Explanation:

According to Faraday's law, whenever there is a change in the magnetic lines of force, it leads the production of induced emf. The magnitude of induced emf is proportional to to the rate of change of flux.

Hence if the magnetic field inside a loop of wire is changed rapidly, the magnitude of induced emf increases in accordance with Faraday's law of electromagnetic induction stated above when the magnetic field is changed more rapidly, hence the answer.

8 0
3 years ago
Emmett is lifting a box vertically. Which forces are necessary for calculating the total force?
GrogVix [38]

When Emmett is lifting a box vertically, the forces that must be added to calculate the total force are: the gravitational force, tension force(the force exerted by Emmett to the box and the force exerted by the box to Emmett), and air resistance force.

4 0
2 years ago
Determine the minimum applied force p required to move wedge a to the right. the spring is compressed a distance of 175 mm. negl
BARSIC [14]
<span>b. The coefficient of static friction for all contacting surfaces is μs=0.35. neglect friction at the rollers.

</span>
6 0
3 years ago
What is the name for a wave that requires energy to produce it and a medium to travel through?
Wittaler [7]
....mechanical wave...
8 0
3 years ago
Other questions:
  • What is energy efficiency
    12·1 answer
  • Laquite wants to toss a tennis ball straight up to Michele who is 5 meters above her. If the wants the ball to stop just as it r
    6·1 answer
  • 3. Work and Conservation of Energy:Calculate the height of a building if 20,000 J energy is required to 200 kg of water from a w
    7·1 answer
  • What do gamma rays consist of?
    14·2 answers
  • A man throws a football straight into the air. As it rises, it slows down. Which
    8·1 answer
  • Approximate the field by treating the disk as a +6.1 C point charge at a distance of 21 cm Answer in units of N/C.
    10·1 answer
  • Im just a little confused right now
    7·1 answer
  • What force is keeping the Earth in orbit around the Sun? * HELP FAST PLEASE.
    8·1 answer
  • Physics help me pleaseee
    8·1 answer
  • compared to a solid wire of the same gauge, stranded wire? select one: a. has a slightly larger diameter b. will carry more curr
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!