TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

A substance made of one or more atoms of a single type is a ?


An element is a substance made up of only one type of atom.

Related Questions

Posted in Physics

How would the acceleration of a chain of three shopping carts compare with the acceleration of a single cart if the same force acted on both? A. 1/3 as much the single B. 1/2 as much the single C. 3 times as much the single D. 2 times as much the single

So in order to know the correct answer, let us analyze the problem. Given that a = F/m where a is acceleration, F is force and m is mass, here is the solution.

a = F/m 

a' = F/3m 

a'/a = 1/3

Based on this, the correct answer would be option A. 

1/3 as much the single  Hope this helps.

Posted in Physics

If a substance containing charged ions and electrons can be compressed so that the particles have less space between them, the substance is a gas. plasma. solid. liquid.

Answer: Option (b) is the correct answer.

Explanation:

Plasma is a hot ionized gas that contains approximately equal number of both positive ions and negatively charged electrons.

Thus, we can conclude that if a substance containing charged ions and electrons can be compressed so that the particles have less space between them, the substance is a plasma.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

If two carts collide, what type of collision will conserve both momentum and kinetic energy? a. head on b. perfectly inelastic c. none d. perfectly elastic

The appropriate answer is d. perfectly elastic. When a perfectly elastic collision occurs both momentum and kinetic energy are preserved. Momentum is the mass of an object times its velocity while kinetic energy is the energy that a moving object has due to its motion. In an elastic collision kinetic energy would be converted to some other form of energy. 

Posted in Physics

Crystals can have _____ bonds between their atoms. ionic covalent metallic all types of

Answer;

All types of

Crystals can have all types of  bonds between their atoms.

Explanation;

  • Crystals are solid materials which contains atoms, molecules or ions that are arranged in a complex structure forming a crystal lattice.
  • Crystals may have all types of bonds, these includes; ionic bonds, formed as a result of transfer between a metallic bond and a non-metal atom, Covalent bond, formed as a result of sharing electrons between non metal atoms, hydrogen bonds, metallic bonds Van der Waals bonds, etc.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

W many atoms of nitrogen are in the chemical formula Ni(NO3)2

There are 2 atoms of nitrogen in that chemical formula.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Democritus thought that matter was made of tiny particles A. of earth, air, fire, and water. B. that could not be divided. C. that could be divided. D. that were all round and smooth.

Correct answer choice is :


B) That could not be divided.


Explanation:


Democritus was a Greek scholar who lived within 470-380 B.C. He elaborated the theory of the atom, Greek for permanent. Democritus thought that everything in the world was made up of atoms, which were tiny and durable. They assumed that matter was made up of very small particles. They named these particles atoms, which comes from an antique Greek word signifying permanent. These atoms were supposed to be absolutely indivisible and forever.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Substance of an atom of 2 or more elements

H. O is the answer hope this helps
2

Posted in Physics

What type of disorder is myasthenia gravis? A. Immune disorder B. Inflammatory disorder C. Structural disorder D. Infectious disorder

Immune disorder'" because Myasthenia gravis is a chronic autoimmune neuromuscular disease characterized by varying degrees of weakness of the skeletal (voluntary) muscles of the body. The name myasthenia gravis, which is Latin and Greek in origin, literally means "grave muscle weakness."

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

How do cells and atoms relate?

Cells are made up of atoms, and the living body is made up of cells. They both are the main part of the things they create.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

What types of waves make up the smallest part of the electromagnetic spectrum?

 it's visible light :)


hope this helps, and if you have any more questions feel free to message me!



HAVE  A BEAUTIFUL DAY!!!

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Which statements best describe the atoms of the gas neon?

Neon is a chemical element with symbol Ne and atomic number 10. It is in group 18 (noble gases) of the periodic table. Neon is a colorless, odorless, inert monotonic gas under standard conditions, with about two-thirds the density of air.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

As an object moves along the x axis, many measurements are made of its position, enough to generate a smooth, accurate graph of x versus t. Which of the following quantities for the object cannot be obtained from this graph alone? (Select all that apply.) the displacement during some time interval the speed at any instant the velocity at any instant the average velocity during some time interval the acceleration at any instant

Answer:

the acceleration at any instant

Explanation:

1). the displacement during some time interval

We can determine the displacement of the object from the graph because we know that displacement is defined as the change in position of the object and from graph change in position can be obtained easily

2). the speed at any instant

3). the velocity at any instant

speed at any instant of time and velocity at any instant of time must be same in the magnitude and we can determine it by the slope of the graph

As we know that instantaneous velocity is defined as

v = \frac{dx}{dt}

so slope of the graph at any instant will give an idea about instantaneous speed of velocity

4). the average velocity during some time interval

To find average velocity we need the displacement of object at a given interval of time and ratio of this displacement and time interval is known as average velocity

So we can find it from graph

5). the acceleration at any instant

To find the instantaneous acceleration we need to find

a = \frac{dv}{dt}

this is not possible to find from x-t graph because in order to find this slope we need to find velocity time graph.

Posted in Physics

. Jodi made a list about electric current to help her study for a test. 1) Movement of electrons is continuous in a current. 2) Electrons move from areas of low to high electric potential. 3) Voltage causes current to flow. 4) Rate at which current flows is measured in amperes Which best describes Jodi’s error? The movement of electrons is not always continuous. Electrons move from areas of high to low electric potential. Resistance causes current to flow. The rate at which current flows is measured in ohms.

The correct answer (the one which best describes Jodi's error) is

The movement of electrons is not always continuous.

In fact, the movement of electrons is continuous only in the case of direct current (DC), where the voltage has always the same direction, so electrons always flow from low voltage to high voltage.

On the contrary, when there is an alternate current (AC), the direction of the voltage is constantly reversed, therefore the direction of movement of the electrons is also constantly reversed, therefore their movement is not continuous.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Which of the following statements is true? -the freezing and boiling temperatures of a substance are the same. -the freezing and condensation temperatures of a substance are the same. -the freezing and melting temperatures of a substance are the same. -the freezing, melting, and boiling temperatures of a substance are the same. Please help!!

Answer: The correct answer is "The freezing and melting temperatures of a substance are the same".

Explanation:

Freezing temperature: It is the temperature at which the liquid becomes the solid.

Melting temperature: It is the temperature at which the solid starts converted into liquid.

The freezing point of a substance is the same as the melting point of the substance. During melting and freezing of the substance, the temperature remains same as the energy is spent in changing the phase of the substance not in changing the temperature.

Latent heat is there. It is a hidden heat. It is required to change phase of the substance without showing temperature on thermometer.

Boiling temperature: It is the temperature at which liquid gets converted into vapors. At this temperature, vapor pressure of the liquid equals to the pressure surrounding the liquid.

Posted in Physics

What statement BEST explains why the specific heat of water is higher than the specific heat of most other substances?

For the answer to the question above, Due to water's polarity, water can absorb heat without a significant temperature change. The specific heat of liquid water is 4.183 J / g K
I hope my answer helped you with your problem. Have a nice day!

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements