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
melamori03 [73]
3 years ago
14

Why is an iron core needed in an electromagnet?

Physics
1 answer:
ella [17]3 years ago
4 0
An iron core is needed in an electromagnet because it  serves to increase the magnetic field created. It has a ferromagnetic properties. <span>An </span>electromagnet<span> is essentially just a battery attached to a coil of wire wrapped around a metal</span>core<span>. </span>
You might be interested in
A 0.6 kg ball is initially at rest on a frictionless, horizontal surface. It is struck by a 0.4 kg ball initially moving with a
Dafna1 [17]

Answer:

140

Explanation:

7 0
3 years ago
What type of bond results from the side‑on overlap of orbitals?
Serga [27]

Answer:

A pi bond

Explanation:

A pi bond is a type of covalent bond that results from the formation of a molecular orbital by the side-to-side overlap of atomic orbitals along a plane perpendicular to a line connecting the nuclei of the atoms.

4 0
3 years ago
Maurice pulls on the end of a spring scale. He lets go of the end and observes the spring snap back into place. What force resto
andreev551 [17]
Elastic is the right answer.
3 0
3 years ago
Read 2 more answers
How does the Coriolis effect influence the direction of the Trade Winds in the Northern Hemisphere? Does it have the same effect
scoray [572]

Answer:

Part A

Coriolis effect is used to describe how objects which are not fixed to the ground are deflected as they travel over long distances due to the rotation of the Earth relative to the 'linear' motion of the objects

Due to the Coriolis effect the wind flowing towards the Equator from high pressure belts in the subtropical regions in both the Northern and Southern Hemispheres are deflected towards the western direction because the Earth rotates on its axis towards the east

Part B

In the Northern Hemispheres, the winds are known as northeasterly trade winds and in the Southern Hemisphere, they are known as the southeasterly trade wind. Therefore, Coriolis effect has the same effect on the direction of the Trade Winds in the Southern Hemisphere as it does in the Northern Hemisphere

Explanation:

7 0
3 years ago
You hear a sound in the distance. Suddenly the sound gets deeper, decreasing in pitch. Which can you assume about the sound wave
oksian1 [2.3K]

Answer:

A. The wavelengths of the new sound waves are longer

Explanation:

This is the Doppler effect which can be best illustraded  for the case of a siren of an ambulance approaching us having a greater frequency and getting lower in frequency and deeper as the ambulance passes  us.

Since the wavelength is inversely proportional to the frequency it follows the wavelengths are longer when the frequency decreases lowering its pitch and getting deeper.

8 0
3 years ago
Other questions:
  • What is cumulative force?
    5·1 answer
  • Does a resistor resist current or voltage
    6·1 answer
  • Two pop cans are at rest on a stand. A firecracker is placed between the cans and lit. The firecracker explodes and exerts equal
    10·1 answer
  • standing side by side, you and a friend step off a bridge and fall for 1.6s to the water below. your friend goes first, and you
    11·1 answer
  • A conservative force acts on a particle. We can conclude:
    15·1 answer
  • Internal injuries can include which of the following? HELP ASAP (EDG ANATOMY 2020)
    14·1 answer
  • A photon of wavelength 0.99235 nm strikes a free electron that is initially at rest. the photon is scattered straight backward.
    8·1 answer
  • An extraterrestrial "Eratosthenes" performs the equivalent experiment, that Eratosthenes did on Earth, on her/his home world. Sh
    9·1 answer
  • Is it possible to accelerate and not speed up or slow down?
    9·1 answer
  • Continuous signals are characterized as . signals that are broken up into binary code are characterized as . an am/fm radio is a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!