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
Anuta_ua [19.1K]
2 years ago
9

This group of elements is in group 2?

Physics
1 answer:
asambeis [7]2 years ago
5 0

Answer:

If you meant the Periodic Table it's the alkaline-earth metal

beryllium (Be)

magnesium (Mg)

calcium (Ca)

strontium (Sr)

barium (Ba)

radium (Ra)

Explanation:

You might be interested in
In grassland regions, rainy seasons and drought seasons determine, in part, the _____. kinds of resident organisms spread of fir
qaws [65]

kinds of resident organisms
6 0
3 years ago
Read 2 more answers
Red light of wavelength 633 nmnm from a helium-neon laser passes through a slit 0.360 mmmm wide. The diffraction pattern is obse
777dan777 [17]

Answer:

      Δy= 5,075 10⁻⁶ m

Explanation:

The expression that describes the interference phenomenon is

      d sin θ = (m + ½) λ

As the observation is on a distant screen

     tan θ = y / x

     tan θ= sin θ/cos θ

As in ethanes I will experience the separation of the vines is small and the distance to the big screen

          tan θ = sin θ

Let's replace

     d y / x = (m + ½) λ

The width of a bright stripe at the difference in distance  

     y₁ = (m + ½) λ x / d

     m = 1

      y₁ = 3/2 λ x / d

Let's use m = 1, we look for the following interference,

             m = 2

             y₂ = (2+ ½) λ x / d

The distance to the screen is constant x₁ = x₂ = x₀

The width of the bright stripe is

           Δy = λ x / d (5/2 -3/2)

           Δy = 630 10⁻⁹ 2.90 /0.360 10⁻³ (1)

           Δy= 5,075 10⁻⁶ m

8 0
3 years ago
A student wants to draw a diagram to show the path of a light wave. Which
wariber [46]

Answer:

D

Explanation:

light moves in a straight line (sorry if I'm wrong)

8 0
3 years ago
When you put your hands on a cold object like a glass of ice water your hands become?
nikklg [1K]
<span><span>Your hand will be cold.
if you do it often enough, you will realize your fingernails will not grow as fast (Fun fact)


</span></span>
5 0
3 years ago
It is important to be careful when using nonrenewable resources because
iragen [17]

Answer:

The answer is A because it is a resource that takes many many years to make more of and we cannot make it ourselves

4 0
3 years ago
Other questions:
  • a rock is dropped into a well hits the water in 5 secs. if there is no air resistance, what would be the rocks final speed?
    8·2 answers
  • What affect would using a 12V car battery have on the operation of your circuit? (Do not try this.) What would happen to the cur
    7·1 answer
  • If an atom has 34 protons and 40 neutrons, what is its mass number?
    13·2 answers
  • A short-wave radio antenna is supported by two guy wires, 150 ft and 170 ft long. Each wire is attached to the top of the antenn
    9·1 answer
  • The color in visible light have different
    7·1 answer
  • Arrange the skin layers according to the order in which a physician would cut them off during surgery, starting with the first a
    13·1 answer
  • A 2.2 ohm resistor has 0.042 A of current in it. What is the potential difference across the resistor?
    9·1 answer
  • The universal law of gravity states that all objects attracts all other objects.
    8·1 answer
  • Which is an example of an object at rest?
    15·1 answer
  • Why should you use an iron hammer instead of a wooden <br> hammer?<br>​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!