A 3.0-kg bowling ball experiences a net force of 8.0 N. What will be its acceleration?A. 24 m/s2B. 3.0 m/s2C. 8.0 m/s2D. 2.7 m/s2E. 0.38 m/s2

Answer:

true

Explanation:

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627 joules of energy are required to heat up 1 kg of water by 15°C.

To calculate how much energy is required to heat up 1 kg of water by 15°C, we need to use the following formula:

Energy = mass x specific heat capacity x temperature change

where mass is the mass of the substance being heated, specific heat capacity is the amount of energy required to heat up 1 gram of the substance by 1°C, and temperature change is the change in temperature.

To calculate the energy required to heat up 1 kg of water by 15°C, we can plug in the values:

Mass = 1 kg

Specific heat capacity = 4.18 J/g°C

Temperature change = 15°C

Using the formula:

Energy = 1 kg x 4.18 J/g°C x 15°C = 627 J

Therefore, 627 joules of energy are required to heat up 1 kg of water by 15°C.

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Answer:

The distance between dots on a dot diagram represents the object's position change during that time interval. A large distance between dots indicates that the object was moving fast during that time interval. A small distance between dots means the object was moving slow during that time interval.

The velocity of Sam just before hitting the ground is 294 m/s.

The above situation represents a case of motion in one dimension.

This type of motion is governed by the following three equations of motion,

v = u + at

v² - u² = 2as

S = ut + 1/2 at²

As in the given case, the acceleration and time have been given and the final velocity is to be calculated, therefore the 1st equation can be used,

v = u+ at

As Sam jumped from the plane, his initial velocity is zero.

So,

v = 0 + 9.8(30)

v = 294 m/s.

Thus, Sam's velocity just before hitting the ground is 294 m/s.

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Answer:

Explanation:

Frictional force = 7000 N

mass of car = 1300 kg . Initially car was moving uniformly so no force acting on car at that time . After frictional force acts , it creates deceleration or negative acceleration .

acceleration = force / mass

= - 7000 / 1300

= - 5.38 m / s²

Based on the light curve in the book, the distant Type 1 supernova will become too faint to be seen approximately 270 days after reaching its peak apparent magnitude of 24.

According to the given information, the peak apparent magnitude of the distant Type 1 supernova is 24. By referring to the light curve in the book, we can estimate the duration for which the supernova remains visible. Typically, the brightness of a supernova decreases exponentially over time.

While specific light curves may vary, a rough estimate can be made. Considering the options provided, the closest estimate is approximately 270 days. This means that after the supernova reaches its peak brightness, it will gradually fade and become too faint to be observed after around 270 days.

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Over time, the molecules will undergo various processes, such as diffusion, collision, and chemical reactions. These processes can cause the molecules to change their physical and chemical properties, as well as their spatial arrangement.

For example, diffusion can cause molecules to spread out and move from areas of high concentration to areas of low concentration. Collision can cause molecules to bounce off each other and change their direction of movement. Chemical reactions can cause molecules to form new substances with different properties.

Overall, the behavior of molecules over time is determined by the laws of physics and chemistry, and can be observed and studied using various experimental techniques.

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Answer:

A chemical change occurred, so even if Cash heats it, the white solid will remain

Explanation:

There are two types of changes that occur in Chemistry viz; physical change and chemical change. Physical changes are those changes do not involve any change in the chemical composition of the substances involved while a chemical change involves a change in chemical composition.

In a chemical change, there are characteristics signs such as formation of gaseous bubbles, solid precipitates etc. as the information in this question depicts. According to this question, Cash mixes two clear liquids together which results in the formation of bubbles and a white solid that settles at the bottom. Hence, THIS REPRESENTS A CHEMICAL CHANGE

Most chemical changes are usually irreversible i.e. they don't return to their original form. Hence, even if Cash heats it, the white solid will remain.

Answer:

A chemical change occurred, so even if Cash heats it, the white solid will remain

Answer: The given equation is balanced as  \(SO_{2}(g) + O_{2}(g) \rightarrow SO_{3}(g)\)

Explanation:

A chemical equation that contains same number of atoms on both reactant and product side are called balanced chemical equation.

For example, \(SO_{2}(g) + O_{2}(g) \rightarrow SO_{3}(g)\)

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

To balance this equation, multiply \(SO_{2}\) by 2 on reactant side and multiply \(SO_{3}\) also by 2 on product side.

Hence, the equation will be rewritten as follows.

\(2SO_{2}(g) + O_{2}(g) \rightarrow 2SO_{3}(g)\)

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

As there are same number of atoms on both reactant and product side. So, this equation is a balanced equation.

Thus, we can conclude that the given equation is balanced as  \(SO_{2}(g) + O_{2}(g) \rightarrow SO_{3}(g)\)

Answer:

Asexual production they can be eukaryotes or prokaryotes

Explanation:

The car must have a static friction coefficient of 0.568 in order to safely round the bend.

"The Occupational Safety and Health Administration advises that walking surfaces have a static coefficient of friction of 0.5," reads the appendix statement (at A4. 5). The allocation of a 0.5 COF to OSHA is most likely explained by the regulatory proposal from OSHA and the mention in ADAAG taken together.

To get the static friction coefficient required for a vehicle to travel at 102 km/h around a flat curve with a radius of 105 m,

F = mv²/r

F = μs * N

μs × N = mv²/r

N = mg

μs × mg = mv²/r

μs = v²/(gr)

μs = (102 km/h)² / (9.8 m/s² × 105 m)

μs = 0.568

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The time available on Machine II must lie between 1 minute and 3 minutes. The shadow price for Resource 2 (associated with constraint 2) is $3 per minute.

(a) To determine the range of available time on Machine II, we need to consider the constraints provided. The time available on Machine II must be between the time required for Type A souvenirs and the time required for Type B souvenirs.

Time required for Type A souvenir on Machine II: 1 minute

Time required for Type B souvenir on Machine II: 3 minutes

Therefore, the time available on Machine II must lie between 1 minute and 3 minutes.

The meaningful solution for the available time on Machine II is 1 min ≤ Machine II ≤ 3 min.

(b) To maximize the profit, we need to determine the optimal production quantities for Type A and Type B souvenirs given a change in the available time on Machine II.

Let's assume the change in available time on Machine II is represented by k.

To maximize the profit, we need to find the production quantities that maximize the total profit. Let's denote the production quantity for Type A souvenirs as x and the production quantity for Type B souvenirs as y.

The objective function for the profit can be expressed as:

Profit = 0.80x + 1.60y

Subject to the following constraints:

2x + y ≤ 120 (Machine I constraint)

x + 3y ≤ (300 + k) (Machine II constraint)

Using linear programming techniques, the optimal solution will depend on the value of k.

The statement "Ace Novelty's profit is maximized by producing Type A souvenirs 540 5 and 2(223+ *). 3 Type B souvenirs, where -225 1x ** $ 150 X X" seems to be incomplete and unclear. The specific production quantities and profit cannot be determined without knowing the value of k.

(c) To find the shadow price for Resource 2 (associated with constraint 2), we can perform sensitivity analysis.

The shadow price represents the change in the objective function's value per unit increase in the availability of Resource 2 (Machine II in this case). We can determine it by evaluating the sensitivity of the objective function to changes in the constraint.

Since the constraint is x + 3y ≤ (300 + k), the shadow price associated with Resource 2 is the coefficient of the Machine II term, which is 3.

Therefore, the shadow price for Resource 2 (associated with constraint 2) is $3 per minute.

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Answer: Is it not this: The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.

The nurse should insert the needle at a 45-degree angle to ensure proper medication administration into the subcutaneous tissue.

When administering a subcutaneous injection, the nurse inserts the needle at a 45-degree angle to ensure proper medication administration. This angle allows for even distribution of the medication in the subcutaneous tissue, facilitating absorption and therapeutic effect. The subcutaneous tissue has a rich blood supply, and the medication is absorbed through capillaries in this layer. The 45-degree angle ensures that the medication reaches the appropriate depth without hitting muscle or bone. It also balances effective delivery with patient comfort, minimizing pain and tissue trauma. Inserting the needle at a steeper angle could cause the medication to be delivered too deeply, potentially causing discomfort or injury. Proper injection techniques, including selecting the correct needle length and angle, are crucial for safe and accurate administration of subcutaneous medications.

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Find the distance traveled by a car that travels with an average speed of 110 km/h for 3.5 h

To solve for distance:

d = v t

d = 110 × 3.5

d = 385 km

How long does it take a baseball moving with an average speed of 35 m/s to travel 18 m?

To solve for time:

t = d/v

t = 18 / 35

t = 0.514286

t = 0.5 s

What is the average speed of a car that travels 870 km in 14.5 h?

To solve for average speed:

v = d/t

v = 870 / 14.5

v = 60 km/h

The effect of the factors which he can he actually find out using only this lamp to determine the size of shadow is the light intensity and type of object.

This forms part of the scientific methods and is referred to as a procedure which is used to support or refute an hypothesis.

The size of the shadow is dependent on factors such as the light intensity and the type of object. Since the lamp produces the light in which the intensity can be gotten and the type of material it is in contact with then it therefore the correct choices.

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Answer: (c) they are equal.

Explanation:

The normal force is equal and opposite to the weight of an object. When an object stands on a floor, the normal force is equal in magnitude to the weight of the object and acts in the upward direction. This means that the normal force on a person standing on the floor is equal in magnitude to the person's weight and acts in the upward direction, holding the person up against the force of gravity.

The value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

When an object collides with another object, they exchange energy. For example, a baseball and bat collision or a car collision. When two objects collide, the force of the collision has to be equal on both sides of the collision according to Newton's Third Law. So, to find the value of force, we will apply the equation:

F = ΔP / ΔT

where F is the force, ΔP is the change in momentum, and ΔT is the time of collision. The equation represents the impulse momentum theorem.

Now, let's apply the given values to the above equation.

Final momentum (p2) = mass × final velocity (v2)

p2 = 0.15 kg × (-50 m/s)

p2 = -7.5 kg.m/s

Initial momentum (p1) = mass × initial velocity (v1)

p1 = 0.15 kg × (40 m/s)

p1 = 6 kg.m/s

Change in momentum (ΔP) = p2 - p1

ΔP = -7.5 kg.m/s - 6 kg.m/s

ΔP = -13.5 kg.m/s

Time of collision (ΔT) = 8.0 × 10³ s

Now, putting the values of ΔP and ΔT in the equation of impulse momentum theorem, we get:

F = ΔP / ΔT

F = -13.5 kg.m/s ÷ 8.0 × 10³ s

F = -1.7 × 10⁻³ N

Thus, the value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

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The gravitational force experienced by the woman will be the same as that experienced by the man. This is because the gravitational force between two objects depends on both their masses, and is proportional to the product of their masses.

Therefore, the force experienced by each object will be the same, regardless of their individual masses.
The gravitational force, Fw, experienced by the woman will be equal to the gravitational force, Fm, experienced by the man.

This is because the gravitational force between two objects with masses (100 kg and 50 kg) follows Newton's Third Law, which states that for every action, there is an equal and opposite reaction. In this case, both the man and the woman experience the same gravitational force, just in opposite directions.

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Answer:

all of the above are correct

Answer:

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Explanation:

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Por definición de velocidad angular, periodo y frecuencia del M.C.U., la frecuencia, la velocidad angular y el periodo de la rueda son 8.833 Hz, 55.50 rad/s y 0.113 segundos respectivamente.

El movimiento circular uniforme (M.C.U.) es un movimiento de trayectoria circular en el que la velocidad angular es constante. Esto implica que describe ángulos iguales en tiempos iguales.  

En otras palabras, el M.C.U. describe el movimiento de un cuerpo con una rapidez constante y una trayectoria circular, cambiando en cada instante de dirección.

La frecuencia mide el número de revoluciones o vueltas completadas por unidad de tiempo. La frecuencia se expresa en s⁻¹ o Hertz (Hz).

Se define como:

f= ω÷ (2π) siendo ω la velocidad angular.

El periodo (T) es el tiempo que el cuerpo emplea en dar una vuelta completa; es decir que las características del movimiento son las mismas cada T segundos.

Se define como:

Una rueda gira con una frecuencia de 530 rpm. Expresada en las unidades correspondientes, la frecuencia de la rueda es:

f = 530rpm×\(\frac{1 min}{60 segundos}\)

f = 8.833 Hz

Siendo la frecuencia f= ω÷ (2π), entonces la velocidad angular es calculada como:

ω= f× (2π)

Entonces, la velocidad angular de la rueda es:

ω= 8.833 Hz× (2π)

ω= 55.50 rad/s

Finalmente, por definición de periodo, el periodo de la rueda es:

T= 1÷ 8.833 Hz

T=0.113 segundos

En resumen, la frecuencia, la velocidad angular y el periodo de la rueda son 8.833 Hz, 55.50 rad/s y 0.113 segundos respectivamente.

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Answer:the ocean water isn't moving into or through the atmosphere as a result of the sun's heating of the water, convection isn't the process influencing air and water temperature difference. The heat of the ocean is being given off radiated into the air, making the air substantially warmer

Explanation:

Earth is larger than Mars. Additionally, Mars' circumference is around half that of the Earth's. Therefore, around 6.5 planets the size of Mars could fit inside the Earth if it were cracked open like an egg.

Not only is Mars smaller than Earth, but it is also less dense. This indicates that the gravitational force of gravity on Mars' surface is just 38% as powerful as that of gravity on Earth.

Therefore, 8.7 × 1016 N of gravitational force pulls the Earth and Mars together. The two planets are 5.5 × 1010 meters apart. The mass of the Earth is 6.0 × 1024 kg.

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Answer:

2 N

Explanation:

From the question, it's given that

Mass m = 0.2 kg

Acceleration a = 10 m/s^2

The force a soccer goalie experience when stopping a ball will be equal to the force at which the ball is being kicked. This is

F = ma

Substitute all the parameters into the formula

F = 0.2 × 10

F = 2 Newton.

Answer:

Because it’s imposible

Answer:

Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them.

Explanation:

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Answer:- how difficult it is to change an object's motion

Explanation:

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Answer:

A: Excess H+ is absorbed by bicarbonate ions.

Explanation:

Answer:

Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle. Regions where this process occurs are known as subduction zones.

When calculating the binding energy, z multiplied by the sum of mass of proton and mass of electron.

Z in binding energy calaculation is the number of protons in the nuclides.

To calculate the binding energy we use the formula below;

E = Z (mp + me) + Nmn − mn

Where;

Thus, when calculating the binding energy, z multiplied by the sum of mass of proton and mass of electron.

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