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
RoseWind [281]
3 years ago
11

A long spring is attached to a wall at one end. A pulse is sent down the spring. When the pulse reaches the wall it bounces back

upside down. At the moment it reaches the wall, a second pulse is sent down the spring.
What happens when the two pulse meet?
Chemistry
1 answer:
slega [8]3 years ago
8 0

Answer: they will meet and make a biger wave then seperat

Explanation: When two or more waves meet, they interact with each other. The interaction of waves with other waves is called wave interference. Wave interference may occur when two waves that are traveling in opposite directions meet. The two waves pass through each other, and this affects their amplitude.

You might be interested in
Which process is similar to binary fission?
elixir [45]
Fission is similar to mitosis because they both involve splitting. 

Answer: <span><span>d. mitosis</span></span>
8 0
3 years ago
A solution is prepared by dissolving 20.1 g of MgCl2 with the addition of 157.0 mL of water (density of water is 1.00g/cm3). The
Nezavi [6.7K]

Answer:

1.3 M.

Explanation:

  • We need to calculate the mass of the solution:

mass of the solution = mass of MgCl₂ + mass of water

mass of MgCl₂ = 20.1 g.

mass of water = d.V = (157.0 mL)(1.0 g/cm³) = 157.0 g.

∴ mass of the solution = mass of MgCl₂ + mass of water = 20.1 g + 157.0 g = 177.1 g.

  • Now, we can get the volume of the solution:

V of the solution = (mass of the solution)/(density of the solution) = (177.1 g)/(1.089 g/cm³) = 162.62 mL = 0.163 L.

Molarity is the no. of moles of solute dissolved in a 1.0 L of the solution.

M = (no. of moles of MgCl₂) / (Volume of the solution (L)).

<em>∴ M = (mass/molar mass)of MgCl₂ / (Volume of the solution (L)) =</em> (20.1 g/95.211 g/mol) / (0.163 L) = <em>1.29 M ≅ 1.3 M.</em>

6 0
3 years ago
What happen to water when it boils
tatuchka [14]

When water is boiled, the heat energy is transferred to the molecules of water, which begin to move more quickly. Eventually, the molecules have too much energy to stay connected as a liquid. When this occurs, they form gaseous molecules of water vapor, which float to the surface as bubbles and travel into the air.

8 0
3 years ago
What are some physical properties of a candle
Troyanec [42]
The wick and the wax

Sorry if that was useless, I'm not sure how generalized you were being

6 0
3 years ago
Read 2 more answers
liam uses a machine that counts waves on a metal cable. The machine counts 25 waves in 2 seconds. what is the frequency of the w
Softa [21]
Frequency is defined as the number of waves per second. In this machine 25 waves pass in one second.
We need to calculate the number of waves that pass a particular point during one second.
During 2 seconds -25 waves
Therefore in one second - 25/2 = 12.5 waves/s.
1 wave per second has the unit Hertz (Hz)
Therefore answer is 12.5 Hz
7 0
3 years ago
Other questions:
  • How many grams of aluminum will be produced if 21.3g of Ba react with 19.7g of Al2 (SO4)3
    14·1 answer
  • A lake that is protected from receiving the runoff from a cultivated field is likely to remain a healthy ecosystem. t or f
    13·2 answers
  • Write a balanced equation for the complete combustion of pentane, c5h12. do not enter phase symbols. enter the alkane formula as
    14·1 answer
  • 1. Everything that takes up space and has mass is called_________
    12·1 answer
  • Which reaction is an example of heterogeneous catalysis?
    13·1 answer
  • How to combine elements to make compounds?
    13·1 answer
  • Part A Name the complex ion [Fe(CN)6]^3- . The oxidation number of iron is +3. Part B Name the complex ion [Cu(NH3)2(H2O)4]^2+ .
    15·1 answer
  • When an electric field is applied to a metallic crystal, the movement of electrons is .
    10·2 answers
  • What do scientist use to measure the volume of a substance
    5·2 answers
  • 2. What are some common properties of metals, nonmetals, and semimetals?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!