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
DedPeter [7]
3 years ago
5

Physics 130 Metal detectors, like the ones used at airports, are activated by a. electric fields. b. magnetic fields. c. electro

magnetic induction. d. alternating current.
Chemistry
1 answer:
bija089 [108]3 years ago
5 0

Answer:

Option (C)

Explanation:

A metal detector is usually defined as an instrument that is commonly used to detect the presence of metals in the bags and luggage. It is very widely used in places like airports, railway stations, and other important official places.

This device is generally activated with the help of electromagnetic induction. It contains a single or numerous inducting coils which are connected to the elements placed on the ground surface. These used materials are metallic in nature. Within the region of the electromagnetic field, when any metallic substance enters, it immediately gains energy and thereby transmits an electromagnetic field of its own.

Thus, the correct answer is option (C).

You might be interested in
Someone please help me I will give BRAINLIST
blsea [12.9K]
  1. b
  2. d
  3. e
  4. a
  5. c
  6. f

    7.g

well there is your answers

3 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!
jarptica [38.1K]

An atomic mass unit is defined as precisely 1/12 the mass of an atom of carbon-12.

7 0
3 years ago
What factors mechanical weathering ?. <br><br><br> Earth Science.
OLga [1]

Answer:

-Growth of plants on the rock.

-Temperature and pressure changes in nature.

-Freezing and thawing of water in cracks of the rock.

-Formation of salt crystals within the rock.

-Burrowing by animals.

those are some factors I know

hope this helped you

4 0
2 years ago
Read 2 more answers
You have three elements, A, B, and C, with the following electronegativity values:
DerKrebs [107]

#AB

Electronegativity difference=3.3-2.9=0.4.

  • It's a covalent bond.
  • Gaseous or solid substance.

#AC

Electronegativity difference=3.3-0.7=2.6

  • Its an ionic bond.
  • Solid substance.

#BC

Electronegativity difference=2.9-0.7=2.3

  • It's an ionic bond
  • Solid substance

6 0
2 years ago
A volume of 90.0 mLmL of aqueous potassium hydroxide (KOHKOH) was titrated against a standard solution of sulfuric acid (H2SO4H2
Alja [10]

Answer:

0.823 M was the molarity of the KOH solution.

Explanation:

H_2SO_4+KOH\rightarrow K_2SO_4+2H_2O (Neutralization reaction)

To calculate the concentration of base , we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2SO_4

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is KOH.

We are given:

n_1=2\\M_1=1.50 M\\V_1=24.7 mL\\n_2=1\\M_2=?\\V_2=90.0 mL

Putting values in above equation, we get:

2\times \1.50 M\times 24.7 mL=1\times M_2\times 90.0 mL

M_2=\frac{2\times 1.50M\times 24.7 mL}{1\times 90.0 mL}=0.823 M

0.823 M was the molarity of the KOH solution.

7 0
3 years ago
Other questions:
  • Arrange the following types of photons of electromagnetic radiation in order of decreasing energy: red light, radio, x-rays, γ-r
    11·1 answer
  • What is a precipitate?
    14·2 answers
  • I think i know the answer but idk..
    9·1 answer
  • Consider the chemical equation in equilibrium.
    14·2 answers
  • PLEASE HELP ME ANSWER
    12·1 answer
  • ‼️SHOW ALL STEPS‼️ If 14.4 grams of iron reacts with hydrochloric acid, how many grams of hydrogen gas will be produced?
    15·1 answer
  • A student uses a variety of techniques to separate four different compounds from 2.10 g of a mixture. After separation of the
    13·1 answer
  • The picture shows a model of a cell.
    7·1 answer
  • Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
    5·2 answers
  • PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!