What type of force is demonstrated in the image below?

Answer:

detail is given below.

Explanation:

The charged particles of nucleus are protons while neutrons are neutral having no charge.

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus.

Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

Symbol of proton= P⁺  

Symbol of neutron= n⁰  

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons.

one proton contribute 1 amu to the total weight. There are 20 protons and 20 neutrons in Ca thus its atomic mass is 40 amu.

While the atomic number is 20.

Answer:

b. endothermic decomposition

Explanation:

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

A + B      →      AB

Endothermic reactions:

The type of reactions in which energy is absorbed are called endothermic reactions.

In this type of reaction energy needed to break the bond are higher than the energy released during bond formation.

For example:

C +  H₂O  + 131 kj/mol  →  CO  + H₂

Thus, in given reaction energy is added and AB compound is decomposed to give A and B so this reaction is endothermic decomposition.

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{6.34 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.105315...[/tex]

We have the final answer as

Hope this helps you

Answer:

Mass = 50kg, a = 20m/sec^2

F = MA

F = 50 * 20

F = 1000N

F = MA

650 = M * 10

M = 650/10 = 65kg

The phenomenon of weightlessness occurs when there is no force of support on your body. when your body is effectively in free fall, accelerating downward at the acceleration of gravity, then you are not being supported.

F = Gm1m2/distance^2

F = 6.6726* 10 ^-11 * 70 * 5.98 * 10^24/(6.38 * 10^6)^2

hope it helps you

Answer:

Hailey should add, they are inexpensive to produce.

Explanation:

Reason being why they are inexpensive to produce, is due to them being chemical based and easy to product in the factory setting. Which makes them extremely cheap to make.

Reason being why the others are wrong, synthetic polymers are not biodegradable as they are made in a factory with oils. Synthetic polymers are not flexible due to them being used for harder products. Synthetic polymers are not recycled cheaply as they are made with chemicals which makes it very hard to recycle.

answer:D

Explanation: i took it

Answer:

what's the question here then ?????

Explanation:

nepal ????

Answer:

C. Limiting internal combustion engines that power automobiles.

Explanation:

I majored in Chemistry

Answer:

Explanation:

The mass of the ball can be found by using the formula

[tex]m = \frac{2k}{ {v}^{2} } \\ [/tex]

v is the velocity

k is the kinetic energy

From the question we have

[tex]m = \frac{2(3.10)}{ {6.70}^{2} } = \frac{6.20}{44.89} \\ = 0.138115...[/tex]

We have the final answer as

Hope this helps you

Answer:

Explanation:

The mountain ecosystems are characterized by coniferous tree species such as pinus, firs, and spruces and species such as deers, bears, and wolves.

A beetle that kills coniferous trees would be a greater threat to the ecosystem than a wolf that hunts and eat deer because the dominant trees in the ecosystem are conifers. Hence, a beetle that kills coniferous trees might end up killing the dominant tree species in the ecosystem and this will gravely affect other plant and animal species within the ecosystem.

Wolves and deers have their niche in the mountain ecosystem already and hence, their populations are naturally limited by limiting factors of the environment. Hence, a wolf that hunts and eats deers would be of a lesser threat to the mountain ecosystem.

Answer:

Explanation:

Without photosynthesis there would be no oxygen in the earth's atmosphere and we wouldn't be here!

Explanation:

The prefix trans- and its variant tra- mean "across".

A translucent substance allows some light to go "across" it to the other side. Also, think about a transparent substance: it allows light to go "across" it; or a translation, it is a going "across" from one language into another.

Answer:

The answer will be A

Explanation:

A scientific law is based on repeated experiments or observations, that describe or predict a range of natural phenomena. A scientific law is something that is unexpected

Answer:

B

Explanation:

It just is.......

Answer:

I'm thinking it might be Element 39: Yttrium, as this is Chemistry.

Explanation:

Answer: 2. 7g of Li

Explanation: A mole of any substance contains the same number of particles (Avogadro's number, 6.02*10^23). 1 gram atomic mass of He (4g) is equivalent to 1 mole; so is 1 gram atomic mass (7g) of Li

Answer:

The value of the equilibrium constant (K) remains the same.

Explanation:

A state of dynamic equilibrium is said to have been achieved in a reaction system when the rate of forward reaction equals the rate of reverse reaction.

At equilibrium, doubling the initial concentration of reactants have no effect on the equilibrium constant K. The equilibrium will rather shift to the left or right as required in order to annul the constraint.

Answer:

C

Explanation:

Answer:

A.) It is a well-tested hypothesis.

Answer:

Its is a well-tested hypothesis

Explanation:

i took the test

Answer: 26 out of 30.

Explanation:

Out of 30 ATP molecules, 26 are produced from maximum oxidative phosphorylation production. Two more come from glycolysis and two more are from the citric acid cycle.

To power other cellular processes, ATP captures and releases chemical energy obtained from the breakdown of food molecules.

Answer:

YCr2O7

Explanation:

Answer:

A

Explanation:

High frequency, short wavelength

Answer: It is caused by the tendency of some atoms in molecules to attract electrons more than their accompanying atom.

Answer:

A simulated example of additive color mixing. Additive primaries act as sources of light. The primaries red, green, and blue combine pairwise to produce the additive secondaries cyan, magenta, and yellow. Combining all three primaries (center) produces white.

when all of the primary colors are mixed it makes black

Explanation:

Answer:

                                 Sedimentary rock

Metamorphic rock                                 Igneous rock

Answer:

yes eating the food involves both physical and chemical changes. The chewing of food is a physical change, while the mixing of saliva with food triggers chemical reactions

Explanation:

Once the food mixes with the saliva in our mouth, chemical reactions start taking place in the food, leading to its breakdown and changes in its chemical composition. An evidence of the chemical changes is the taste that we feel when we eat something sweet or sour etc.

Answer:

a chechimal

Explanation:

Answer:

c. a gene for pest resistance is inserted into the genome of a corn plant

Explanation:

Answer: A duh

Explanation:

becastse

Answer:

Gravity

Explanation:

Objects that are experiencing free fall, are not encountering a significant force of air resistance or as a matter of fact any other kind of forces, they are falling under the complete control of gravity.

Answer:

Neutrons

Explanation:

Answer:

d. cells are made of atoms and molecules. :)

Explanation:

hope i helped

Answer:

its the pink one I think

Explanation:

Answer: At the bottom of a big hill