The two objects have different masses, the more massive object pulls with a greater force. TRUE OR FALSE?

Answer:

146 neutrons.

Explanation:

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Answer: The atomic number of uranium (see periodic table) is 92, and the mass number of the isotope is given as 238. Therefore, it has 92 protons, 92 electrons, and 238 — 92 : 146 neutrons.

Explanation:

Answer:2n

Explanation:10/5=2

Answer: A. 25%

Explanation: Ap3x

Answer:

The nest must be about  4.15 meters above ground

Explanation:

Use the velocity equation under accelerated motion (acceleration of gravity ):

\(v_f=v_i+a\,*\,t\)

which for this case has initial velocity = 0 (falls from the nest), final velocity = 9 m/s, and a = 9.8 m/s^2, then we can find the time needed in air while falling to reach the required speed:

\(v_f=v_i+a\,*\,t\\9=0+9.8\,t\\t=\frac{9}{9.8} \, sec\\t \approx 0.92\,\, sec\)

We now use this time value to find the distance covered in free fall during 0.92 seconds:

\(d=\frac{1}{2} \,9.8 \,t^2=4.9\,(0.92)^2=4.147 \,meters\approx 4.15\,meters\)

Two conducting cylindrical wires are made out of the same material. Wire X has twice the length and twice the diameter of wire Y. The ratio of their resistances Rx/Ry is 1/2.

The resistance of a cylindrical wire depends on its length and cross-sectional area, and is given by the formula: R = (ρL) / A, where ρ is the resistivity of the material, L is the length of the wire, and A is the cross-sectional area. Since both wires are made of the same material, they have the same resistivity ρ.

Wire X has twice the length and twice the diameter of wire Y. The length of wire Y is L and its cross-sectional area is A. Therefore, the length of wire X is 2L and its cross-sectional area is 4A (since the diameter is doubled, the area is quadrupled).
Using the formula for resistance, the ratio of the resistances of the two wires is:

Rx/Ry = [(ρ x 2L) / (4A)] / [(ρ x L) / A] = 1/2

Therefore, the answer is A) 1/2.

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Answer:

1000 seconds.

Explanation:

The change from one physical state to another in a substance is caused by changes in the temperature and pressure of the substance. Changes in temperature and pressure cause a substance to change from one physical state to another.

The physical state of matter refers to the distinct form in which matter can exist - solid, liquid, and gas. The physical state of a substance is dependent on its temperature and pressure. A substance in a solid state has a definite shape and volume. A substance in a liquid state has a definite volume but no definite shape. A substance in a gaseous state has neither a definite shape nor a definite volume.Temperature and pressure are two variables that are used to describe a system. When there is a change in temperature and pressure, the state of matter of the substance changes accordingly. When the temperature and pressure of a solid substance are raised to a certain point, it can become a liquid. When a liquid is heated to a certain temperature, it can turn into a gas.

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The sky on Earth is blue because blue light is scattered through the atmosphere as the other colors of light pass through undisturbed. Dark nebulae  have something similar going on.

Nebulae are interstellar dust and gas clouds that get backlighting from stars both inside and behind them. The clouds are illuminated by the photons from these stars that are dispersed throughout them. A nebula does not generate most of the light that appears to come from it; rather, it reflects and refracted light.

A dark nebula, also known as an absorption nebula, is a form of interstellar cloud, particularly a molecular cloud, that is so dense that it absorbs all of the light from objects behind it, including emission or reflection nebulae and background stars, at visible wavelengths.

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Answer:

Fe = 7.98*10^5N/C

Explanation:

In order to calculate the electric force between the two charges you use the following formula:

\(F_e=k\frac{q_1q_2}{r^2}\)           (1)

k: Coulomb's constant = 8.98*10^9Nm^2/C^2

q1 = 2mC = 2*10^-3C

q2 = 4mC = 4*10^-3C

r: distance between the charge = 30cm = 0.3m

You replace the values of the parameters in the equation (1):

\(F_e=(8.98*10^9Nm^2/C^2)\frac{(2*10^{-3}C)(4*10^{-3}C)}{(0.3)^2}\\\\F_e=7.98*10^5\frac{N}{C}\)

The force between the charges q1 and q2 is 7.98*10^5N/C

Metals - Conductivity and weight can be tailored, Ceramics - Good electrical and thermal insulators, Composites - The level of conductivity or resistivity can be controlled, Polymers - Poor electrical and thermal conductivity, Semiconductors - low compressive strength.

Metals: Metals are known for their good electrical and thermal conductivity. They are excellent conductors of electricity and heat, allowing for efficient transfer of these forms of energy.
Ceramics: Ceramics, on the other hand, are good electrical and thermal insulators. They possess high resistivity to the flow of electricity and heat, making them suitable for applications where insulation is required.
Composites: Composites are materials that consist of two or more different constituents, typically combining the properties of both. The conductivity and weight of composites can be tailored based on the specific composition.
Polymers: Polymers are characterized by their low conductivity, both electrical and thermal. They are poor electrical and thermal conductors.
Semiconductors: Semiconductors possess unique properties where their electrical conductivity can be controlled. They have an intermediate level of conductivity between conductors (metals) and insulators (ceramics).

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Answer: D- Each chromosome in a cell is made up of two chromatids, which are each made up of molecules of DNA

Explanation:

A macromolecule is a large molecule that is made of many smaller units. Chromosomes are macromolecules that contain all of the genetic information in a cell. Chromosomes are each made of two smaller units called chromatids. Chromatids are each made up of molecules of DNA. Therefore, the correct description of the hierarchy of genetic material in a cell is that each chromosome in a cell is made up of two chromatids, which are each made up of molecules of DNA. The structures become more and more microscopic as one moves down the hierarchy.

The total kinetic energy of the system before the collisions was equal to the total kinetic energy of the system after the collisions.

It appears that both conservation of momentum and conservation of energy hold across all trials regardless of initial conditions. This can be inferred from the fact that the elastic collisions were perfectly elastic, meaning that there was no loss of kinetic energy during the collisions. As a result, the system's total kinetic energy before the collisions was equal to the system's total kinetic energy after the collisions.

As for the conservation of momentum, this can be confirmed by calculating the momentum of the system before and after each collision and comparing the results. In a perfectly elastic collision, the total momentum of the system is conserved, which means that the momentum before the collision is equal to the momentum after the collision.

There do not appear to be any significant patterns based on the information provided regarding whether higher mass or faster velocities did a better job of showing momentum or kinetic energy conservation. However, it is important to note that in a perfectly elastic collision, both momentum and kinetic energy are conserved regardless of the initial conditions of the system.

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Answer:

Chemical energy is in a battery

The type of energy is stored in a battery is Chemical energy (option d)

Batteries store chemical energy. When a battery is charged, a chemical reaction occurs inside it, converting the reactants into different products. This process stores energy in the form of chemical bonds within the battery's components.

When you use the battery to power a device, the reverse chemical reaction takes place, releasing the stored energy as electrical energy. This flow of electrons creates an electric current that powers the device connected to the battery.

The capacity of a battery to store and release energy depends on the type and quantity of chemicals used in its construction. Different types of batteries, such as alkaline, lithium-ion, or lead-acid batteries, have varying chemical compositions, affecting their energy storage capabilities and overall performance.

So, the correct option is (d).

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Answer:

I'm not sure but I think it is electric currents in the outer core

Answer:

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Explanation:

is obviously the correct answer they are both so different yet so alike

wrong question someone just comment the right answer ;-;

What is Newton's second law of motion?

Newton's second law of motion states that the rate of change of momentum is directly proportional to the applied force and the direction of change of momentum takes place towards direction of applied force.

1. Concept of Momentum.

2. Measurement of Force.

_____________________________________

Answer:

Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object

Answer:

6 newtons

Explanation:

If it's an equal force exerted on the student's hands, the object will not move.

If a student pushes on an object with a force of 6 newtons and the object does not move then the force exerted by the object on the student’s hands would be 6 Newtons because the applied force is equal to the static frictional force until the object does not move.

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact

As given in the problem If a student pushes on an object with a force of 6 newtons and the object does not move then we have to find out the force exerted by the object on the student’s hands,

Force applied by the student of the object = 6 Newtons

The force exerted by the object on the student's hand = 6 Newtons

Thus, the force exerted by the object on the student’s hands would be 6 Newtons

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Answer:

srarch from website please

Answer:

B. sugar + oxygen → carbon dioxide + water + energy

Explanation:

Energy is that which sustains living organisms, so as to perform various activities. One of the processes by which living organisms produce energy is by respiration.

Respiration involves the breathing-in of oxygen and breathing-out of carbon dioxide as a waste. The oxygen helps in breaking down molecules of carbohydrates e.g sugar in the system of living organisms into energy, carbon dioxide and water.

This process is well represented by the equation in option B.

The reaction which correctly represents the cellular respiration process is sugar + oxygen → carbon dioxide + water + energy.

Cellular respiration involves the conversion of chemical energy from food

into ATP which is needed for the cell's daily activities.

This process is done in the presence of oxygen to form products such as:

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Answer:

Eccentricity is found by the distance from a focus to the center of an ellipse along the semi-major axis divided by the semi-major axis length.

Remember that the sun is always a focus point to a planet orbiting around the sun.

11)  The semi-major axis length is (180+220)/2 = 200

      220-200= 20 <= distance from focus to the center of the ellipse along the semi-major axis length

        e= 20/200 = 0.1

Here's the answer for the next question too :)

12)  (147.2+152.1)/2= 149.65

       152.1-149.65= 2.45

        e= 2.45/149.65 = 0.0164

Explanation:

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The eccentricity of the orbit of a planet whose distance from the sun varies from 180 million to 220 million km is 0.1.

A conic section's eccentricity is a non-negative real integer that defines its form. More precisely, two conic sections are comparable if and only if their eccentricities are the same. The eccentricity may be thought of as a measure of how much a conic section deviates from being circular.

Eccentricity is calculated by dividing the distance from a focus to the center of an ellipse along the semi-major axis by the length of the semi-major axis.

Since the sun is always the focal point for planets orbiting around the sun. Therefore, we can write,

The semi-major axis length = (180 +220) / 2

                                             = 200

Now, the length of the semi-major axis from the focus to the center of the ellipse is,

Length = 220 - 200 = 20

Further, the eccentricity can be written as,

e= 20/200 = 0.1

Hence,  The eccentricity of the orbit of a planet whose distance from the sun varies from 180 million to 220 million km is 0.1.

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Answer:

Hello, Rotting, burning, cooking, and rusting are all further types of chemical changes because they produce substances that are entirely new chemical compounds. For example, burned wood becomes ash, carbon dioxide, and water. When exposed to water, iron becomes a mixture of several hydrated iron oxides and hydroxides.

Explanation:

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The value of n in the given function is negative even integer.

The given parameters:

\(f(x) = a(x + k)^{\frac{1}{n } } + c\)

When n is positive, the function is written as;

\(f(x) = a(x + k)^{\frac{1}{n } } + c\)

When n is negative, the function is written as;

\(f(x) = a(x + k)^{\frac{1}{-n} } + c\\\\f(x) = \frac{a}{(x + k)^n} + c\)

When n is odd integer, the function will have three possible curves.

When n is even integer, the function will have two curves: one real solution and one imaginary solution.

When n is positive even integer, the real solution will curve upwards.

When n is negative even integer, the real solution will curve downwards.

The plot in the given graph curves downwards which indicates negative even integer value of n.

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Answer: N is a positive even integer

Explanation: The answer above is wrong I did the quiz once alr.

The magnitude of the force applied by the top box on the bottom box compares to the size of the pressure applied by the bottom box on the top box for each of the stacks, where the two magnitudes are always equal.

The magnitude of force in physics refers to the total of all the forces exerted on an item. When all of the forces operate in the same direction, the magnitude of the force rises. When forces occur in opposite directions on an item, the amount of the force diminishes.

Force is a vector quantity, which means it is described by two quantities. The quantity of the force is one, and the direction in which it acts is the other. Other vector quantities include velocity and acceleration.

These are the kinds of forces that exist when two things interact with one another and make physical contact. Contact forces are classified as frictional force, tension force, normal force, air resistance force, applied force, and spring force.

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Answer:

Explanation:

The wording on some of these choices is very strange; I'm not sure exactly what they are stating. First of all, A. is definitely a choice because if both the charges were opposite, they would be attracted to one another as opposed to be repelled away from one another, as they are when they are both positive. What happens is that the charges go OUT from the positive charge and INTO the negative; so as far as the field lines around both charges would change direction...no; only the direction of the field lines would change on the positive charge (which is the one on the left). In that space where D is filled in by the field lines going OUT of the positive charge and INTO the negative one, the lines there are naturally closer together, and that is the point where the charge is the greatest. So if that is what is meant by the field lines getting closer together, then yes, they do. As far as choice D. again the field lines on the negative charge don't change, only the ones on the positive charge change.

The arrows on the field lines surrounding the negative charge would need to point toward instead of away from the charge.

These pattern of lines, sometimes referred to as electric field lines, point in the direction that a positive test charge would accelerate if placed upon the line. As such, the lines are directed away from positively charged source charges and toward negatively charged source charges.

“ When an object has more electrons than protons then the object is said to be negatively charged.”

“When an object has more protons than electrons, the object is said to be positively charged.”

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Answer:

I think letter A

Explanation:

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