A pitcher throws a baseball at 43.4 m/s. when the baseball hits the catcher's mitt, it comes to rest over a distance of 0.1 meters. the average acceleration of the baseball was___m/s^2?

The results would be affected if the solid sphere were replaced by a hollow conducting sphere of the same radius r. explanation:  Hollow sphere: A hollow sphere is a three-dimensional geometrical structure in which the center of the structure is empty. Hollow spheres are normally made of a lightweight material and are frequently used to produce things like pipes, balloons, and inflatable balls. These spheres can be made of a variety of materials, including metal, wood, and plastic. Radius: The distance from the center of a sphere to any point on its surface is known as the radius. The distance from the center of the sphere to its surface is also called the radius. This is a vital parameter in terms of finding the surface area, volume, and other aspects of the sphere.

Solid sphere: A three-dimensional geometric form with every point on its surface an equal distance from the center is known as a solid sphere. The term "ball" is sometimes used to describe a sphere.The result would be affected if the solid sphere were replaced by a hollow conducting sphere of the same radius r, because the volume of the hollow sphere is less than the volume of the solid sphere, which means the capacitance of the hollow sphere would be less than that of the solid sphere. Hence, the results will be affected.

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The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases.  As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder.

The perpendicular component of a displacement factor with a magnitude of 20 m is 20 m as well. When an object moves from its initial position to a final position, the displacement is the straight-line distance between the two positions and the direction of the displacement is from the initial position to the final position.

A perpendicular component is created when the displacement vector is resolved into two components. When a displacement vector is divided into two perpendicular components, the magnitude of each component is found using the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

This theorem is represented mathematically as: a² + b² = c².Where c is the length of the hypotenuse, and a and b are the lengths of the other two sides of the triangle. In this case, the hypotenuse represents the displacement vector, and the two other sides represent the components of the displacement vector that are perpendicular to each other. Therefore, the perpendicular component of a displacement factor with a magnitude of 20 m is 20 m as well.

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The energy associated with movement is Kinetic Energy, while energy that is stored is Potential Energy.

Two types of energy—kinetic energy and potential energy—describe the condition of a system. While potential energy is the energy stored in an object or system based on its location or configuration, kinetic energy is the energy of motion.

The energy that an object has as a result of motion is known as kinetic energy. The formula KE=1/2mv2 can be used to calculate an object's kinetic energy, which depends on its mass and speed. In this instance, m stands for the object's mass and v for its speed. An object has more kinetic energy the faster it moves. For instance, a moving vehicle has more kinetic energy than a vehicle that is stationary.

On the other hand, potential energy is the energy that an object has as a result of its position or configuration. It is frequently referred to as the energy that a thing possesses as a result of its capacity for labor. Gravitational potential energy, or the energy an item has as a result of its position with respect to a reference point like the ground, is the most typical illustration of potential energy. A lower-altitude item has less gravitational potential energy than a higher-altitude object. PE=mgh, where m is the object's mass, g is the acceleration brought on by gravity, and h is the object's height above the reference point, is the formula for gravitational potential energy.

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Answer:

A) Variety of Living Things

Explanation:

Biodiversity is defined as the variety of life in the world or in a particular habitat or ecosystem.

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Answer:

Electric current creates a magnetic field that charges the rod.

Explanation:

The forces acting on a skateboard include gravity, friction, air resistance, and applied force, and they all affect the motion of the skateboard in different ways.

When a skateboard is in motion, several forces act on it that affect its movement. The main forces acting on a skateboard are:

Gravity: This is a force that pulls the skateboard downwards towards the ground. The weight of the skateboard and the rider are also affected by gravity.

Friction: This is a force that opposes the motion of the skateboard. Friction is caused by the skateboard's wheels rolling on the ground or surface, and it can slow down the skateboard's speed.

Air resistance: This is a force that opposes the motion of the skateboard as it moves through the air. The faster the skateboard moves, the more air resistance it experiences.

Applied force: This is the force applied by the rider to propel the skateboard forward or to perform tricks. The amount of applied force determines how fast or slow the skateboard moves.

The combination of these forces affects the motion of the skateboard. If the applied force is greater than the forces of friction, air resistance, and gravity, the skateboard will accelerate. If the forces of friction, air resistance, and gravity are greater than the applied force, the skateboard will slow down or come to a stop.

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Answer:

Explanation:

A) The diagram
---> 5N
---> 6N
---> 7N

B) The force needed to replace them would be their summation so
5+7+6 = 18N

C)
---> 5N
<--- 6N
---> 7N
Now for replacing it 6N would oppose Hence negative sign
5-6+7 = 6N

Answer:

d

Explanation:

lol Hope's this helps lovely

Red sunsets are due to light of lower frequencies that are more capable of making their way through the Earth’s atmosphere. Sunsets take on different colors and shades because of the way that sunlight interacts with the Earth's atmosphere.

When the sunlight passes through the atmosphere, molecules and small particles in the air scatter different colors of light. This leads to colorful skies at sunrise and sunset. When the sun is low on the horizon, the sunlight must pass through more of the Earth’s atmosphere before reaching the observer's eye.

At sunrise or sunset, the light that reaches the observer's eye has a longer path through the atmosphere than light at noon. The Earth's atmosphere scatters blue light more efficiently than it scatters the lower-frequency colors. This scattering effect sends more blue light away from the viewer's line of sight. This makes the sky look blue. When sunlight passes through the atmosphere, molecules and small particles in the air scatter different colors of light.

When the sun is low on the horizon, the sunlight must pass through more of the Earth’s atmosphere before reaching the observer's eye. At sunrise or sunset, the light that reaches the observer's eye has a longer path through the atmosphere than light at noon. The Earth's atmosphere scatters blue light more efficiently than it scatters the lower-frequency colors. This scattering effect sends more blue light away from the viewer's line of sight, making the sky look blue

In conclusion, Red sunsets are due to light of lower frequencies that are more capable of making their way through the Earth’s atmosphere. Sunsets take on different colors and shades because of the way that sunlight interacts with the Earth's atmosphere.

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Answer:

White

Explanation:

Red comes from the lowest energy range of and blue from the highest.

The mass of the soil sample is 82g.

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Answer:

d. silicone is shiny and is a poor conducted of electricity​

The best option that describes an example of a chemical property of an element is silicone is shiny and is a poor conductor of electricity​. Option D is correct.

The chemical properties of elements are those properties that are noticeable during the course of a chemical reaction.

Aluminum is solid but not at room temperature. The elements that are solid at room temperature are iron, zinc, gold, and silver. Hence option is incorrect.  The same is applicable to options B and C.

The best option that describes an example of a chemical property of an element is silicone is shiny and is a poor conductor of electricity​

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Answer:

As the frequency increases, the wavelength decreases.In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

Considering the definition of wavelength, frequency and propagation speed, if the frequency increases by a factor of 4, the wavelength decreases by the same factor.

The wavelength is the minimum distance between two successive points of the wave that are in the same state of vibration. It is expressed in units of length (m).

Frequency

Frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).

The propagation speed is the speed with which the wave propagates in the medium, that is, it is the magnitude that measures the speed at which the disturbance of the wave propagates along its displacement.

Relate the wavelength (λ) and the frequency (f) in an inversely proportional way through the following equation:

v=f×λ

So, the higher the frequency, the shorter the wavelength, and the lower the frequency, the longer the wavelength.

From the expression for the propagation speed, the wavelength can be expressed as:

λ= v÷f1

If the frequency is multiplied by four (f2=4×f1) and being the speed of propagation constant because we are in the same medium, then:

λ= v÷f2

λ= v÷ (4×f1)

λ= \(\frac{1}{4}\)× (v÷f1)

In summary, if the frequency increases by a factor of 4, the wavelength decreases by the same factor.

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Answer:

D = 4.05 km

Explanation:

In this case, it's really neccesary to analyze the given data.

First, the rider goes 10 km SE 15°. Then 11 km 30° to the NE direction. Then, he dispatch the order, and then, takes a shorcut to get back at 22 km heading W (This is the missing data of your exercise).

According to all these data, we have the magnitude of the displacement in each part of the travel, but to know the displacement we need to know the x and y components of these magnitudes, so we can really know the total displacement of the rider.

Let's cut this by parts. Part A would be the 10 km SE, Part B 11 km 30° NE and finally Part C would be the remaining 22 km

Part A:

in this case, is heading south east, so it's going in the x-axis positive but y-axis negative so:

Dxa = 10 cos15° = 9.659 km

Dya = 10 sin15° = 2.588 km (But as we are heading south is negative) = -2.588 km

Part B:

Heading NE, it's positive in the x-axis and y-axis so:

Dxb = 11 cos30° = 9.526 km

Dyb = 11 sin30° = 5.5 km

Part C:

Finally in this part is heading west, which means is heading in the x-axis negative, and it does not have a y component so:

Dxc = Dc = -22 km

Now that we have the displacement for each part and it's components, let's calculate the displacement in X and Y:

Dx = 9.659 + 9.526 - 22 = -2.815 km

Dy = -2.588 + 5.5 = 2.912 km

To calculate the magnitude of the displacement:

D = √Dx² + Dy²

D = √(-2.815)² + (2.912)²

Hope this helps

Explanation:

Taking g=10m/s²

P.E =mgh

981J= 2×10×m

981J=20m

m. = 981J/20

m. = 49.05kg

Answer:

sorry i haven't understand this language

We have that for the Question "Name the two types of vaporization and explain the difference between them. Give one example of each. ​" it can be said that the types of vaporization are

Here privatization of liquid will only happen at the surface of the liquid exclusion then other sections of the liquid

This is is a phenomenon that occurs throughout the liquid

From the question we are told

Name the two types of vaporization and explain the difference between them. Give one example of each. ​

Generally

There are two types of vaporization , and they are

Here privatization of liquid will only happen at the surface of the liquid exclusion then other sections of the liquid

This is is a phenomenon that occurs throughout the liquid

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The force constant k of the spring is 781000 N/m

What is force?

Once applied, force is described as an external cause that alters or tends to modify the state of the body; if the body is in motion, it comes to rest, and if at rest, it comes to motion. It can also induce a shift in the body's direction, shape, or size. Pushing or pulling a door with force is an example.

Because force is a vector quantity, it has both magnitude and direction. Newton's second law defines force as the "product of a body's mass and acceleration."

In physics, a force is an effect that can change the velocity of an object. A force can cause a mass object's velocity to change (e.g., moving from rest), causing it to accelerate. Force can be thought of as either a push or a pull. Because it has both magnitude and direction, force is a vector quantity. It is measured in newtons, the SI mass unit (N). The letter F stands for force (formerly P).

In its original form, Newton's second law states that the net force acting on an object is equal to the rate at which its momentum varies with time.

Here,

let the force constant is k

Using conservation of energy

0.50 * 5 *10^5 * 0.50^2 = 0.50 * k * 0.40^2

solving for k

k = 781000 N/m

The force constant k of the spring is 781000 N/m

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During a person's life cycle, from birth to death, they go through various stages. The ninth to sixtieth years are included in these stages. This phase is also referred to as middle age.

Middle age can be described as the period of life that begins when physical development reaches its peak and ends when the signs of old age start to appear.

The following are some characteristics of middle age:

1. Physical changes: Wrinkles, age spots, gray hair, and thinning hair are all signs of aging. These are all natural changes that occur as people age.

It is a gradual process that occurs over time.

2. Emotional changes: People in middle age may go through a variety of emotional changes. They may feel a sense of loss as their children leave home or as their parents pass away.

They may also feel a sense of fulfillment as they reach their career goals or accomplish other personal objectives.

3. Cognitive changes: People in middle age can experience cognitive changes.

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The temperature of the water after 30g of steam has condensed will be approximately 52.14°C.

To solve this problem, we need to consider the energy transfer that occurs when steam condenses into water. The energy released by the condensing steam will be absorbed by the water, resulting in a temperature change.First, let's calculate the energy released when 30g of steam condenses. The specific latent heat of steam is given as 2.26 × 10^6 J/kg, so the energy released by 30g of steam can be calculated as:

Energy released = (30g) × (2.26 × 10^6 J/kg) = 6.78 × 10^7 J

Next, we need to calculate the energy required to raise the temperature of the water from 20°C to the final temperature. The specific heat capacity of water is given as 4200 J/kgK, and the mass of the water is 500g. Therefore, the energy required can be calculated as:

Energy required = (500g) × (4200 J/kgK) × (final temperature - 20°C)

Since the energy released by the steam is equal to the energy required by the water, we can set up the equation:

6.78 × 10^7 J = (500g) × (4200 J/kgK) × (final temperature - 20°C)

Now, we can solve for the final temperature:

(final temperature - 20°C) = (6.78 × 10^7 J) / ((500g) × (4200 J/kgK))

(final temperature - 20°C) = 32.14°C

final temperature = 32.14°C + 20°C

final temperature ≈ 52.14°C

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The capacitance of the parallel plate capacitor is reduced to half.

A parallel plate capacitor is a device that has two parallel plates connected across a battery. The parallel plate capacitor charges the plates and creates an electric field between them.

The expression for capacitance of a parallel plate capacitor is given by,

C = εA/d

From the equation it is clear that the capacitance is directly proportional to the area of the plates and inversely proportional to the distance between the plates.

C'/C = 2A x d/(A x 4d)

C'/C = 1/2

Therefore, C' = C/2.

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Answer:

Its 57.723 billion meters but D is the closest to that.

Answer:

5738929292

Explanation:

simple math

The time of motion of the bullet is 0.064s.

The horizontal speed of the bullet is 781.25 m/s.

The time of motion of the bullet is the time taken for the bullet traveled from its initial position to the final position and it is calculated as follows;

h = vt + ¹/₂gt²

where;

0.02 = 0 + ¹/₂(9.8)t²

0.02 = 4.9t²

t² = 0.02/4.9

t² = 0.0041

t = √0.0041

t = 0.064 s

The horizontal speed of the bullet is calculated using the following formula shown below;

X = Vₓt

where;

Vₓ = X/t

Vₓ = (50 m) / (0.064)

Vₓ = 781.25 m/s

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Answer:

Damaging effects of sewage dumps on human health include Cholera, Typoid and Dysentery.

Explanation:

Life-threatening human pathogens carried by sewage include cholera, typhoid and dysentery. Other diseases resulting from sewage contamination of water include schistosomiasis, hepatitis A, intestinal nematode infections, and numerous others.

A 0.1mm diameter glass tube is inserted into an ethyl alcohol at 20 degrees centigrade in a cup. The angle of alcohol with the tube is 0 degrees. D = 0.1 mm = 0.001m, alcohol angle is 0 degrees, ethyl alcohol

\(η=1.1×10^-3 N⋅sec/ m², s_g\)

=0.79.

We have to determine how much glycerin rises in the tube. The force that moves the liquid through the tube is the difference between the downward force of gravity on the liquid column and the upward capillary force produced by the surface tension of the liquid against the walls of the tube.

The height to which the fluid rises in a capillary tube may be measured by balancing the capillary force against the force of gravity on the column.

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For most everyday objects, scientists use a balance to obtain an object's mass. A balance compares an object with a known mass to the object in question. One example of a balance is the triple beam balance.

Answer:

1. v = 30 m/s

2. v = 5 m/s

3. f = 40 Hz

4. f = 400 Hz

5. f = 300 Hz

6. λ = 0.772 m

7. λ = 0.386 m

8. λ = 0.625 m

9. v = 100 m/s

10. v = 50 m/s

Explanation:

The relationship between frequency, wavelength, and speed of a wave is given by the following formula:

\(v = f\lambda\)

where,

v = speed of wave

f = frequency of wave

λ = wavelength

1.

f = 100 Hz

λ = 0.3 m

Therefore,

v = (100 Hz)(0.3 m)

v = 30 m/s

2.

f = 50 Hz

λ = 0.1 m

v = (50 Hz)(0.1 m)

v = 5 m/s

3.

v = 20 m/s

λ = 0.5 m

\(f = \frac{v}{\lambda} = \frac{20\ m/s}{0.5\ m}\)

f = 40 Hz

4.

v = 80 m/s

λ = 0.2 m

\(f = \frac{v}{\lambda}=\frac{80\ m/s}{0.2\ m}\)

f = 400 Hz

5.

v = 120 m/s

λ = 0.4 m

\(f = \frac{v}{\lambda}=\frac{120\ m/s}{0.4\ m}\)

f = 300 Hz

6.

v = 340 m/s

f = 440 Hz

\(\lambda = \frac{v}{f}=\frac{340\ m/s}{440\ Hz}\\\)

λ = 0.772 m

7.

v = 340 m/s

f = 880 Hz

\(\lambda = \frac{v}{f}=\frac{340\ m/s}{880\ Hz}\\\)

λ = 0.386 m

8.

v = 250 m/s

f = 400 Hz

\(\lambda = \frac{v}{f}=\frac{250\ m/s}{400\ Hz}\\\)

λ = 0.625 m

9.

f = 50 Hz

λ = 2 m

v = (50 Hz)(2 m)

v = 100 m/s

10.

f = 100 Hz

λ = 0.5 m

v = (100 Hz)(0.5 m)

v = 50 m/s

Answer:

it B

Explanation:

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