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
mixas84 [53]
3 years ago
8

Light of a certain energy shines on a metal and causes electrons to be emitted.

Chemistry
2 answers:
sashaice [31]3 years ago
8 0

your answer is: the use of that light has a lower frequency

Inessa [10]3 years ago
6 0

Light of certain energy shines on a metal and causes electrons to be emitted. Based on the research of Albert Einstein, the change that would most likely result in stopping the emission of electrons from this metal is to coat the metal.

You might be interested in
Which of the following is a property of matter?
lana66690 [7]

Explanation:

Matter also exhibits physical properties. Physical properties are used to observe and describe matter. Physical properties can be observed or measured without changing the composition of matter. These are properties such as mass, weight, volume, and density.

5 0
3 years ago
Infrared radiation A) Heat from warm objects, used to detect the location of objects Microwaves B) All the radiation humans can
Kazeer [188]

Answer:

Infrared radiation → A) used to detect the location of objects

Microwaves → D) Used in radar and to heat food

Ultraviolet light → C)Given off by very hot objects, such as the sun  Heat from warm objects

Visible light → B) All the radiation humans can see, ranging from red to violet

Explanation:

Microwaves have magnetic waves with very long lengths, greater than that of infrared light. These waves are produced through vibrations that produce heat, as the microwave is turned on, which allows the food to be heated. These waves are also used to provide communication on some types of devices.

Infrared radiation is a type of non-ionizing radiation that has a low frequency and therefore cannot be visualized, since it is not within a visible electromagnetic spectrum, having a frequency lower than red. It can be used to detect the licalization of objects and does not pose a health risk.

Ultraviolet radiation is extremely harmful to our body. It is characterized by radiation with very small wavelengths, less than 400nm. This type of radiation can be released by the sun and ultraviolet lamps.

Visible light refers to the simplest form of electromagnetic wave and covers all the radiation that our eyes can see, allowing different colors to be seen in the objects we observe according to the reorganization of atoms and molecules.

3 0
3 years ago
What was the purpose of varying the concentrations of sodium alginate and CaCl2?
jeka57 [31]

To determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.

<h3>What is concentration?</h3>

The concentration of a substance simply means the amount of the substance in solution. Thus we are looking at the amounts of sodium alginate and CaCl2 in the system.

The concentrations of the sodium alginate and CaCl2 is varied in order to determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.

Learn more about enzymes:brainly.com/question/14953274

#SPJ1

3 0
2 years ago
Pyrite has a metallic luster. which sample is most likely pyrite?
kupik [55]

Answer:

C

Explanation:

others are boring or gems

7 0
3 years ago
Read 2 more answers
What is the name of the instrument used to measure the pressure of a contained gas? *
Natasha_Volkova [10]

Answer:Barometer :

Barometer is a scientific device. It is used to measure air pressure in environment. Air pressure changes with distance upper and bottom sea level.

Barometer is also used for measure altitude.

Barometric pressure has main effects on water and atmosphere conditions.

Hence, Barometer is used to measure air pressure.

Explanation:

3 0
3 years ago
Other questions:
  • Which statement descibes the type of change and the chemical properties of the product and reactants
    6·1 answer
  • Number 4 disksjaiskskaksmks
    11·1 answer
  • Convert the pressure 525.4 torr to kPa.
    5·2 answers
  • What is the independent variable?​
    12·2 answers
  • A fluorine ion has nine protons and a charge of -1. how many electrons are in an ion the fluorine. A. 1 B. 9 C. 10 D. 8
    7·2 answers
  • Describe 3 ways abrasion occurs in nature
    8·1 answer
  • A) Earlier you were told that of all of the 14 solutes you will be studying, the only one that is not appreciably ionized in wat
    10·1 answer
  • If a balloon has a volume of 45.0 L and a temperature of 298 K and the temperature is increased to 328 K, what will be the new v
    8·1 answer
  • Can someone tell me a summary of volcanoes and plate tectonics? (Please quickly!)
    13·2 answers
  • How many atoms are in Na 2 SiO 3
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!