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Zielflug [23.3K]
4 years ago
12

How are electromagnetic waves different from other waves

Chemistry
1 answer:
jenyasd209 [6]4 years ago
3 0
They are different in wavelength.
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hi, I have a science and biology quiz tomorrow and this is the first time. Can you guys drop some tips on how to get higher mark
Lyrx [107]

Answer:

Plan your schedule: Now, as you know your weak areas, your agenda should be to give extra time to tackle those difficult lessons and transform them to strong ones.

Note-making is an effective method:

Solve previous years' question papers:

Understand the concepts while studying:  

Group study can help

1 – Time Management – Daily Routine.

2 – Having Good Food and Drinking More Water Will Help.

3 – Doing Meditation For 30 Min Per Will Increase Memory Power by 20%  

4 – Take A Nap & Sleep Well.  

5 – Challenge Yourself.

6 – Find Your Weakness.

5 0
3 years ago
Is condensation an exothermic or endothermic process? Based on Le Cha^telier’s principle, would you predict the vapor pressure o
Irina18 [472]

Explanation:

A process in which water vapor changes into liquid state is known as condensation. As we know that when energy is released in a reaction then it is known as exothermic reaction and when energy is absorbed in a reaction then it is known as endothermic reaction.

As vapors have high energy so, when they change into liquid state then heat energy is released by them. Therefore, condensation is an exothermic reaction.

As per Le Chatelier's principle, any disturbance caused in an equilibrium reaction will tend to shift the equilibrium in a direction away from the disturbance.

So, when there will occur a decrease in temperature then molecules of a gas will come closer to each other. Hence, there will also occur a decrease in vapor pressure of the gas.

7 0
3 years ago
Why do scientists use models? a. Models make some things easier to understand. b.Measurements can be made only on models. c. Mod
mina [271]
In science, a model is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly. Models are central to what scientists do, both in their research as well as when communicating their explanations.

So your answer would be

C) Models help scientists visualize things they can’t see.
8 0
3 years ago
Read 2 more answers
A sample initially contains 8.0 moles of a radioactive isotope. How much of the sample remains after four half-lives? Express yo
Tju [1.3M]

Answer:

0.50 mol

Explanation:

The half-life is <em>the time required for the amount of a radioactive isotope to decay to half that amount</em>.

Initially, there are 8.0 moles.

  • After 1 half-life, there remain 1/2 × 8.0 mol = 4.0 mol.
  • After 2 half-lives, there remain 1/2 × 4.0 mol = 2.0 mol.
  • After 3 half-lives, there remain 1/2 × 2.0 mol = 1.0 mol.
  • After 4 half-lives, there remain 1/2 × 1.0 mol = 0.50 mol.

6 0
3 years ago
A student can hold her breath for 94 seconds if another student records that the time she can hold her breath is 92 seconds, wha
Studentka2010 [4]

Answer:  -2.13%

Explanation:

I will assume that the correct time is 94 seconds, since it is stated as a fact.  The measured time of 92 seconds is -2 seonds from the actual.  That gives a percent error of:

[(Measured-Actual)/Actual] or (-2/94) or -2.13%

6 0
3 years ago
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