How, in terms of particles, do these 2 types of mixtures differ?
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PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! IM DESPERATE!!!!!!!!!!!!!! EVEN IF YOU DONT KNOW , GIVE A GUESS. What would be the complementary sequence of nucleotides for the following DNA sequence: GCTAATTGCATCCGA?
Identify and explain the three different ways that charge is built up on an object.
Why is it important that the mouth and stomach are near the start of the digestive system? thx
Complete each sentence with the correct type of lens.The image formed by a lens may be real or virtual. The image formed by a always virtual lens is
1 and 2 only
4 only
1, 2, and 4
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If Linh removes bulb 3,the bulbs which will remain lit are 1, 2 and 4.
What is circuit?
The electric circuit provided with battery creating potential difference across resistance or capacitor or inductors.
When Linh removes the middle branch, the bulbs 1, 2 and 4 will be acting as resistor which are in series connection. The current flow will be same in all the resistors except 3.
Thus, If Linh removes bulb 3, the bulbs which will remain lit are 1, 2 and 4.
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Answer:
1, 2, 4
Explanation:
Just took the quiz :)
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Examples: Voices, whistles, horns and musical instruments.
2.Chemical Energy - is really a form of potential energy and is the energy stored in food, gasoline or chemical combinations.
Examples: Striking a match, combining vinegar and baking soda to form CO2 Gas, breaking light sticks releases chemical energy.
3.Radiant Energy - is a combination of heat and light energy. Light energy, like sound energy, travels out in all directions in waves.
Examples: A light bulb, the glowing coils on a toaster, the sun, and even headlights on cars.
4.Mechanical Energy - is moving energy. It is the form that we most see around us. All moving objects produce mechanical energy. The movements within machines is also mechanical energy.
Examples: People, a rolling bicycle, moving gears, and running cars.
5.Atomic Energy - is produced when you split atoms. A tremendous amount of energy is released when this happens.
Examples:Atomic bombs, nuclear power plants, nuclear submarines, and the sun.
6.Electrical Energy - Energy produced by electrons moving through a substance is known as electrical energy. We mostly see electric energy in batteries and from the outlets in our homes. Electrical energy lights our homes, run motors, and makers our TVs and radios work.
Examples: CD players, TVs and Video games.
Final answer:
The six forms of energy are chemical, thermal, nuclear, electrical, mechanical, and light energy. Each has different characteristics and uses, such as chemical energy being stored in potential changes or light energy being visible to the human eye.
Explanation:
Energy exists in many forms. Here are six common forms of energy:
- Chemical Energy: It is the potential of a chemical substance to undergo a transformation through a chemical reaction to transform into other substances.
- Thermal Energy: It is the internal energy present in a system due to its temperature.
- Nuclear Energy: The energy in the nucleus of an atom. It can be obtained through two methods, namely fission (splitting of atoms) and fusion (joining of atoms).
- Electrical Energy: Form of energy caused by the movement of electrons.
- Mechanical Energy: It's a sum of potential and kinetic energy. It is associated with the motion and position of an object.
- Light Energy: It is a form of energy that is visible to the human eye.
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Answer:
B) carry on further discussion, using many trials if experimentation is needed.
Explanation:
To know if the procedure is the best, the hypotheses raised there must be verified in many ways, choosing experiments that do not provide us with ambiguous or incomplete results. It is very important that any other person can repeat it, since a scientific discovery is not valid until another scientist has replicated it.
Answer:
B
Explanation:
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2. The Moon takes 27.25 days to make one revolution around the Earth. Calculate how
many seconds it takes for the Moon to make one revolution around the Earth.
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Answer:
1. 15.64 m/s
2. 2,354,400 seconds
Explanation:
1. 1mile is equivalent to 1609metres and 1hour is equivalent to 3600sec.
35mph = (35×1609)/3600
= 56315/3600
= 15.64 m/s
2. Note that 1 day ===> 24hrs
60min ==> 1hr
60sec ===> 1min
Thus 27.25 days = 27.25×24×60×60
= 2,354,400 seconds
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Protons and electrons are the two equally abundant particles in an atom.
The atom's nucleus contains protons, which are subatomic particles with a positive charge. A +1 positive electric charge permeates each proton.
An atom's nucleus is surrounded by electrons, which are subatomic particles with a negative charge. An electric charge of -1 is carried by each electron.
The number of protons in the nucleus of a neutral atom is equal to the number of electrons encircling the nucleus. The atom becomes electrically neutral when the balance of positive and negative charges results in a net electric charge of zero.
An atom with the atomic number 6 for carbon, for instance, contains six protons and six electrons. Similar to this, an atom of sodium, which has an atomic number of 11, contains 11 protons and 11 electrons.
An atom is stable and maintains its distinctive chemical properties because it has an equal number of protons and electrons.
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