Which statement about energy conservation BEST explains why a bouncing basketball will not remain in motion forever?

a The energy is used up and destroyed.
b The energy is transferred to light and potential energy.
c The energy is transformed to heat and chemical energy.
d The energy is transformed to sound and heat energy.

Conversion of mass from grams into kg :

False. When you rub a neutral glass rod with a neutral piece of silk, the glass rod does not acquire a positive charge. Instead, it acquires a negative charge. In this process, the number of electrons in the glass rod increases, not decreases. Similarly, the number of electrons in the piece of silk decreases, not increases. The total number of electrons in the glass rod and piece of silk combined does not remain the same, as there is a transfer of electrons from one object to another.

Furthermore, the rubbing process does not cause a change in the mass of the glass rod or the piece of silk. The mass of both objects remains the same before and after rubbing. Rubbing only results in the redistribution of electric charge, not a change in mass.

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Friction is the force that acts on the opposite side of direction of force, thus it manages to decelerate an object, so it acts upward along the plane

Answer:

100 N

Explanation:

For ONE bullet ( .025 kg)

 fired to 1000 m/s   in  .25 s   ( four per second)

     acceleration = 1000 m/s   /  .25 s = 4000 m/s^2

then F = ma

           = .025 kg * 4000 m/s^2 = 100 N

Answer:It has 8550 j energy

speed is 275 feet per second 275×60 = 16500 ft. 16500×Sin15° = 4270.51 ft (app.)

answer is 4270.51

How do you determine an airplane's speed?

the Mach Number.

Formula:

Mach Number = Sound Speed / Aircraft Speed (dependent on altitude)

Example:

The speed of sound at 30,000 feet is equal to 589.4 knots as the aircraft flies. There are 489.3 knots of airspeed.

Calculate: 0.83 Mach = 489.3/589.5.

How is the distance climbed determined?

We can determine the horizontal distance we will cover throughout the ascent given that we know how long it will take:

Ground speed multiplied by climbing time equals horizontal distance.

Using the previous formulas:

rise in altitude = 4000 - 1000 = 3000 ft.

3000 divided by 600 equals 5 minutes for the ascent.

10 NM is the horizontal distance at 120 * 5/60.

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Answer:

2 m

Explanation:

The following data were obtained from the question:

Time 1 = 3 s

Time 2 = 3.5 s

Velocity = 4 m/s (constant)

Displacement =?

Next, we shall determine the change in time. This can be obtained as follow:

Time 1 = 3 s

Time 2 = 3.5 s

Change in time = 3.5 – 3

Change in time = 0.5 s

Finally, we shall determine the displacement of the bird between 3 s and 3.5 s as follow:

Velocity = 4 m/s

Time = 0.5 s

Displacement =?

Velocity = Displacement /Time

4 = Displacement /0.5

Cross multiply

Displacement = 4 × 0.5

Displacement = 2 m

Therefore, the displacement of the birth between 3 and 3.5 s is 2 m.

Answer:

mass

Explanation:

The maximum height of the ball is approximately 6.096 m and the work done by gravity is -4.95 J.

Given information,

m = 0.071 kg

V₀ = 11 m/s

(a) Finding the maximum height:

The initial kinetic energy of the ball is converted into potential energy at its maximum height.

Initial kinetic energy = Potential energy at maximum height

(1/2)mv₀² = mgh

(1/2)(0.071 kg)(11 m/s)² = (0.071 kg)(9.8 m/s)h

h = (0.5)(11²)/(9.8) ≈ 6.096 m

Part (b) Calculating the work done by gravity:

The work done by gravity during the ball's flight to its maximum height is equal to the change in potential energy. Since the gravitational potential energy is defined as zero at the initial height, the work done by gravity is equal to the negative of the potential energy at the maximum height.

Wg = -mgh

Wg = -0.071 × 9.8 × 6.096

Wg ≈ -4.95 J

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Signal circuits should have less than a 0.1 volt drop. Therefore, option D is correct.

In electrical systems, voltage drop refers to the drop in voltage caused by resistance in a circuit or component. Signal circuits that carry sensitive signals and require accurate transmission should ideally have minimal voltage drop to ensure reliable communication.

Signal circuits should drop no more than 0.1 volts to maintain signal integrity and prevent information distortion or loss. This stringent requirement is necessary to guarantee the quality and accuracy of the transmitted signal.

By minimizing the voltage drop, signal circuits can effectively maintain the strength and accuracy of electrical signals, enabling accurate and reliable communication within the system. 

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Answer:

1176 N

Explanation:

We are given that

Mass of car=m1=1280 kg

Mass of trailer=m2=350 kg

Car exerts a horizontal force against the ground =3.6x103N

Coefficient of friction=0.15

We have to find the force exerted by car  on the trailer.

F={m1+m2)a+Ff

F={m1+m2)a+m2g

g=9.8m/s2

Substitute the values then we get

3.6x103=(1280+350a=0.15x350x9.8

3.6x103=1630a+514.5

1630a=3600-514.5=3085.5

a=3085.5/1630=1.89m/s2

Force exert on the trailer

F=m2a+m2g

F=350(1.98)=0.15x350x9.8

F=1176N

Hence, the car exerts force on the trailer=1176 N

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The average speed of the bicyclist for the entire trip is approximately 10.44 m/s.

To find the average speed of the bicyclist for the entire trip, we need to calculate the total distance traveled and the total time taken.The first part of the trip covers a distance of 1600 m at an average speed of 8 m/s. Using the formula speed = distance/time, we can calculate the time taken for this part:

Time₁ = Distance₁ / Speed₁

Time₁ = 1600 m / 8 m/s

Time₁ = 200 s

The second part of the trip covers a distance of 1200 m in 90 s. The average speed for this part can be calculated as:

Speed₂ = Distance₂ / Time₂

Speed₂ = 1200 m / 90 s

Speed₂ = 13.33 m/s

The third part of the trip covers a distance of unknown length in 50 s at a speed of 15 m/s. Let's denote the distance for this part as Distance₃. Using the formula distance = speed * time, we can calculate the distance:

Distance₃ = Speed₃ * Time₃

Distance₃ = 15 m/s * 50 s

Distance₃ = 750 m

Now we can calculate the total distance traveled:

Total distance = Distance₁ + Distance₂ + Distance₃

Total distance = 1600 m + 1200 m + 750 m

Total distance = 3550 m

To find the total time taken for the trip, we sum the individual times:

Total time = Time₁ + Time₂ + Time₃

Total time = 200 s + 90 s + 50 s

Total time = 340 s

Finally, we can calculate the average speed of the bicyclist for the entire trip:

Average speed = Total distance / Total time

Average speed = 3550 m / 340 s

Average speed ≈ 10.44 m/s

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The Jupiter's moon that scientists are preparing to explore where they believe other life may live is called Europa.

What is Europa?

Europa is the fourth largest moon of Jupiter, which is the fifth planet from the Sun in our solar system. Europa is primarily made up of rock and metal, like many moons in the outer solar system.

It is one of the few bodies in the solar system known to have a subsurface ocean of liquid water, which is covered by a layer of ice that is probably a few kilometers thick.

The surface of Europa is thought to be geologically active, with many cracks and fissures.

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Ultra = X-ray

Explanation:

how are things going to paint the roof for beginners painting and decorating the whole house so I'm going away with a few sports mates for a couple nights for beginners but will have a look painting at a time and see what is going to be Strong enough

The same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

Let us understand what these terms mean:

In statistical analysis, multicollinearity is the high correlation among predictors in a regression model. It is problematic because of its adverse effects on the model, including making it difficult to determine the effect of an independent variable, coefficients becoming insensitive to small changes in the model, and reducing the reliability of the model.

In regression analysis, independent predictors are those variables that contribute to the prediction of the dependent variable or outcome, and their inclusion in the model improves the accuracy of the prediction of the model.

In a regression model, it is an assumption that predictors are independent, which means that the predictors have little to no correlation with each other. If this assumption is violated, it is known as multicollinearity.

Therefore, the same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

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Answer:

V = 6 m/s

Explanation:

Given that,

Initial speed of an object is 20 m/s

Final speed of an object is 10 m/s

Time, t = 5 s

We need to find the average speed of the object during these 5 seconds. Let it is equal to V. Here, time is same. The average speed is given by :

\(V=\dfrac{x+y}{2}\\\\\text{Putting values}\\\\V=\dfrac{20+10}{5}\\\\V=6\ m/s\)

So, the average speed of the object is 6 m/s.

The uncertainty in the position of the electron is approximately 7.38× \(10^(^-^3^)\) meters.

To determine the uncertainty in the position of the electron, we can make use of the Heisenberg uncertainty principle, which states that there is a fundamental limit to the precision with which certain pairs of physical properties, such as position and velocity, can be known simultaneously.

The Heisenberg uncertainty principle is mathematically represented as:

Δx * Δv ≥ h/(4π)

where Δx represents the uncertainty in position, Δv represents the uncertainty in velocity, and h is Planck's constant.

Given that the velocity uncertainty (Δv) is 1.88× \(10^5\)  m/s, we can rearrange the equation to solve for the uncertainty in position (Δx):

Δx ≥ h/(4π * Δv)

Substituting the known values, we have:

Δx ≥ (6.626× \(10^(^-^3^4^)\) J·s)/(4π * 1.88×\(10^5\) m/s)

Calculating this expression, we find that the uncertainty in the position of the electron is approximately 7.38× \(10^(^-^3^)\) meters.

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Yes, the student conducted an experiment in which an elastic collision occurred. The system of block x and block y is a closed system.

What is closed system?

A closed system is a system where the components are isolated from the environment. This type of system does not allow any kind of exchange of energy, matter, or information with the environment.

This means that the system is in a state of equilibrium, where the total energy and matter is conserved, and the system is not affected by any external influences.

Therefore, Yes, the student conducted an experiment in which an elastic collision occurred. The system of block x and block y is a closed system.

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Answer:

Explanation:hffdghbjhhfgdvbjnjhjvcfgdfcvhjkm,kjjhgjh

Answer:

diphosphorus pentoxide

Explanation:

just checked it!! <3 gl

P2O5 is a covalent compound used to purify sugar. diphosphorus pentoxideis the name of this compound.  Hence option B is correct.

Covalent substance diphosphorus pentoxide, with the chemical formula P2O5, is frequently employed in the purification of sugar. It is a two phosphorus and five oxygen atom solid that is white and crystalline in nature.

The term "diphosphorus pentoxide" accurately describes the substance's molecular make-up. In the sugar business, this substance is used as a dehydrating agent to assist remove water from sugar solutions.

Diphosphorus pentoxide accelerates the transformation of sucrose into solid sugar by interacting with water, which reduces the growth of microbes and increases the stability and shelf life of the finished product.

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Answer:

The team's model is incorrect because they provide the same materials to build the same product.

Explanation:

The fundamental and the structural unit of the hereditary that codes for certain information and proteins required for signalling and cell functioning are called a gene.

The bridge model is correct.

Gene codes for various proteins required by the cell to function and regulate, a mutation or change in the sequence of the region will result in the modification of the proteins coded and hence the genotype and the phenotype will alter.

In the building model if a gene is mutated and the proteins get altered then the whole sequence and the information for which it is coding will modify.

Therefore, gene mutation will affect the proteins.

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Answer:

d = 4[m]

Explanation:

Torque in physics is defined as the product of force by distance. This way you can use the following equation to calculate the torque.

\(T=F*d\)

where:

T = torque [N*m]

F = force [N]

d = distance [m]

Now replacing in the equation above.

\(84=21*d\\\\d= 4[m]\)

The electric field at position (5.0 cm, 0 cm) depends on the distribution of charges in the system. To determine the electric field at this point, we need more information about the charges and their positions.

To calculate the electric field at a specific point, we need to know the charges and their positions in the system. The electric field is a vector quantity and is determined by the superposition principle, which states that the total electric field at a point is the vector sum of the electric fields due to individual charges. In equation form, the electric field at a point (x, y) due to a point charge Q located at (x', y') is given by:

\(\[\vec{E} = \frac{{kQ}}{{r^2}} \hat{r}\]\)

where k is the Coulomb's constant, Q is the charge, r is the distance between the point charge and the point of interest and \(\(\hat{r}\)\) is the unit vector pointing from the charge to the point of interest.

Without knowing the charges and their positions, we cannot determine the electric field at (5.0 cm, 0 cm) or express it in component form. If you provide information about the charges and their positions, I can assist you in calculating the electric field at that specific point.

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Firstly, we can write the equation for the electric force. It is:

By applying our values we get

Now, if we remind ourselves of Newton's law, we know that

We know the mass, and we know the Force, so we can find out the acceleration, this gives us:

Thus

Our final acceleration is 0.122 m/s^2

Answer:

Measurement is the way humans define certain amounts of matter, and is expressed in various types of units respective to the type of matter or object being defined.

Explanation:

Measurement is extremely important because it helps one another understand how much of something is needed to accomplish something. If no method existed to define the specific amount needed, we would simply mess delicate operations up and machines, even simple recipes, would fail.

Answer:

Try C as the answer, if it works do the thanks button! :D

Explanation:

C) It drives the convection currents in the mantle.

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