3. For each equation, state the reaction type and then balance the equation. (2 points)

b.KCIO3 →_KCI+_0₂
->

Answer:

a) F = 84.64N

b) The force has to increase.

Explanation:

First of all, let's convert everything to the same unit system:

Vo = 0 m/s    Vf = 98 mi/h * 1609.34 m / 1mi * 1h / 3600s = 43.8m/s

d = 1.7m         m = 0.15kg

We can calculate force as:

F = m*a    where a is the acceleration experiencd by the ball and m is its mass.

In order to calculate acceleration, we can use this formula:

   Solving for a:

Now, the force will be:

F = m * a = 84.6N

As we can see in that previous equation, the force is directly proportional to the mass of the ball, so, assuming the final speed of the ball is the same as before (that is, the acceleration is the same), the force will increase in the same proportion as the mass does.

To find the current in the resistor, we can use Ohm's Law and the concept of equivalent resistance. Thus, option A is correct.

First, let's calculate the equivalent resistance of the three cells connected in parallel. When resistors are connected in parallel, the reciprocal of the equivalent resistance is equal to the sum of the reciprocals of the individual resistances:

1/Req = 1/R1 + 1/R2 + 1/R3

Given that R1 = R2 = R3 = 22 Ω (internal resistance of each cell), we can substitute the values:

1/Req = 1/22 + 1/22 + 1/22

1/Req = 3/22

Taking the reciprocal of both sides, we find:

Req = 22/3 Ω

Now we can use Ohm's Law to calculate the current (I) in the resistor. Ohm's Law states that the current flowing through a resistor is equal to the voltage across it divided by its resistance:

I = V/R

Given that V = 1.1 V (emf of each cell) and R = 32 Ω (resistance), we can substitute the values:

I = 1.1/32

Calculating this value, we find:

I ≈ 0.034375 A

Therefore, the current in the resistor is approximately 0.034375 A.

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Speed is a scalar quantity because it is only represented by magnitude not a direction.

If a person has hyperopia, their far point is larger than infinity and their near point is farther away than 25 cm. The correct option is d.

Hyperopia, also known as farsightedness, is a refractive error of the eye in which light entering the eye is focused behind the retina instead of directly on it, resulting in blurred vision of near objects. In hyperopia, the eye has an abnormal shape or the cornea is too flat, causing light to be focused incorrectly. As a result, a person with hyperopia has difficulty seeing close objects clearly, but can see distant objects more clearly.

The far point is the farthest point from the eye at which an object can be seen clearly without any strain or accommodation. In hyperopia, the far point is located beyond infinity, which means that light rays from distant objects are not focused on the retina, but are already converging when they enter the eye. Hence, option d is correct.

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ANYTHING that's dropped near the Earth's surface and isn't affected by air resistance falls 9.8 m/s faster at any time than it did 1 second earlier.

0.5 second after it was dropped with zero speed, it's falling at

(0.5) x (9.8 m/s)  =  4.9 m/s .

It makes no difference which building it was dropped from.

Answer:

Please find attached the plot of distance against time created with Microsoft Excel

Explanation:

The table of the information about the train journey is presented here as follows;

\(\begin{array}{ccc}Station&Distance \ travelled/\,km&Time \taken \, / \, minutes \\Ayton&0&0\\Beeston&20&30\\Seatown&28&45\\Deeville&36&60\\Eton&44&70\end{array}\)

From the table data, the distance against time plot can be created by entering the data into a spreadsheet such as Microsoft Excel, then selecting a Chart option in the Ribbon under the Insert Menu after selecting the data

Answer:

A.   .33m

Explanation:

Have a good day.

Question :-

Answer :-

Explanation :-

As per the provided information in the given question, we have been given that the Mass of the trailer is 360 kg . Force is given as 7200 Newton . And, we have beena asked to calculate the Acceleration of the Truck .

For calculating the Acceleration , we will use the Formula :-

\( \bigstar \: \: \: \boxed {\sf{ \: Acceleration \: = \: \dfrac {Force}{Mass} \: }} \)

Therefore , by Substituting the given values in the above Formula :-

\( \dag \: \: \: \sf {Acceleration \: = \: \dfrac {Force}{Mass}} \)

\( \longmapsto \: \: \: \sf {Acceleration \: = \: \dfrac {7200}{360}} \)

\( \longmapsto \: \: \: \textbf {\textsf {Acceleration \: = \: 20 }} \)

Hence :-

\( \underline {\rule {180pt} {4pt} } \)

Answer:

A Truck is Pulling a Trailer down a Highway . The Total Mass of the Trailer is 360kg and the Force at which the Truck is pulling is 7200 Newton . What is the Acceleration of the Truck ?

Answer :-

Acceleration of the Truck is 20 m/s² .

Explanation :-

As per the provided information in the given question, we have been given that the Mass of the trailer is 360 kg . Force is given as 7200 Newton . And, we have beena asked to calculate the Acceleration of the Truck .

For calculating the Acceleration , we will use the Formula :-

\bigstar \: \: \: \boxed {\sf{ \: Acceleration \: = \: \dfrac {Force}{Mass} \: }}★

Acceleration=

Mass

Force

Therefore , by Substituting the given values in the above Formula :-

\dag \: \: \: \sf {Acceleration \: = \: \dfrac {Force}{Mass}}†Acceleration=

Mass

Force

\longmapsto \: \: \: \sf {Acceleration \: = \: \dfrac {7200}{360}}⟼Acceleration=

360

7200

\longmapsto \: \: \: \textbf {\textsf {Acceleration \: = \: 20 }}⟼Acceleration = 20

Hence :-

Acceleration = 20 m/s² .

To find the resultant force we will first find the component force of the forces given, to do this, we need to remember that any vector can be express in component form by:

For force u we notice that its magnitude is 280 N and its angle is zero, then we have:

For force v we know that its magnitude is 135 N and its angle is 45°, then we have:

Now that we have both vectors in component form we add them to get the resultant in component form:

Once we have the resultant force in component form we can find its magnitude and direction if we remember that they are given by:

Plugging the values we found for the components we have:

and

Therefore, the magnitude of the resultant force is 387.41 N and the direction is 14.27°

Answer:

The meaning of biomass is : The total mass of organisms in a given area or volume.

Explanation:

The kinetic energy of the car when it reaches the bottom of the hill is 4.6 J. According to the conservation of energy, the potential energy at the top is converted into kinetic energy at the bottom.

The potential energy of the car at the top of the hill is given by mgh, where m is the mass (0.05 kg), g is the acceleration due to gravity (9.81 m/s^2), and h is the height (0.95 m). Therefore, the potential energy at the top is (0.05 kg) * (9.81 m/s^2) * (0.95 m) = 0.461 J.

According to the conservation of energy, the potential energy at the top is converted into kinetic energy at the bottom. Therefore, the kinetic energy of the car at the bottom is equal to the potential energy at the top. Hence, the kinetic energy at the bottom is 0.461 J, which is approximately 4.6 J.

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Non-metals accept the electrons which are released by a metal atom and become negatively charged (Anion)

Non-metals are substances without any metallic properties like malleability, ductility, etc. They function well as heat and electrical insulators. Mostly gases, but occasionally liquids, they are. Some of them, like carbon, sulfur, and phosphorus, are even solid at ambient temperature.

Non-metals have more than 4 valence electrons in their outermost shell, hence they accept the electrons to become stable by attaining octet configuration.

Whereas metal atoms have less than 4 electrons in their outermost shell and hence, they release the electron to attain the octet configuration

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Answer:

Charged Particles from the sun

Explanation:

Answer:

I want to say decomposers, because they break down plants that the herbivores eat, and they can also decompose the remains of a scavenger, herbivore, OR carnivore, that was killed and eaten by a carnivore, and maybe even found and eaten by a scavenger. I'm sorry if it's not correct, that's just what my brain has decided right now

Answer:

The answer is number 4. Decomposers

Explanation:

Hope this helps!!

A loudspeaker at the origin emits a 100 Hz tone on a day when the speed of sound is 340 m/s . The distance between these two phases are 1.91m

v= f × wavelength

where v = speed of sound  and f = frequency

therefore wavelength  = v/f  = (340)/140 = (17/7)m

Phase angle = (2 × π/wavelength)×shift

shift = phase angle × (wavelength/2×π) = 5.1 × ((17/7)/2×π) = 1.971m

distance between these two points = 1.971m

The difference in the phase angle between the two waves is called the phase difference. Way contrast is the distinction in the way navigated by the two waves. Path difference and phase difference are directly related. They are straightforwardly relative to one another.

The stage point is the trait of an intermittent wave. Working in numerous contexts is equivalent. A wave has two characteristics in phasors: Dimension and phase A periodic wave angular component is referred to as the phase angle. It's a complicated thing.

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Answer:

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

The force between the rods are -3.486 x 10⁻⁴ N, the two rods are oppositely charged, the force is an attractive force.

Force is an influence on an object or system that will cause it to undergo acceleration, change in direction or shape, or be deformed. It is the result of an interaction between two bodies, and it is measured as a vector quantity with direction and magnitude. Force can be classified into contact forces, such as a push or pull, and non-contact forces, such as gravitation.

The force between two oppositely charged rods can be calculated using Coulomb's law. Coulomb's law states: F = k(q₁×q₂)/r²

where F is the force, k is a constant, q₁ and q₂ are the charges of the two rods (in coulombs), and r is the distance between the two rods (in meters).

Therefore, the force between the two rods in your example can be calculated as follows:

F = (8.99 x 10⁹ Nm²/C²)(7.5 x 10⁻⁷ C)( -5.1 x 10⁻⁵ C) / (0.09 m)²

F = -3.486 x 10⁻⁴ N

Since the two rods are oppositely charged, the force is an attractive force.

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Answer:

Explanation:

For refraction , the formula is

sin i / sin r = μ₂ / μ₁

where light is travelling from medium 1 to 2 having refractive index of μ₁ and μ₂ . Angle of incidence in medium 1 is i and angle of refraction in medium 2 is r .

Here i = 70°, r = 37°

μ₁ = 1.8 ,μ₂ = ?

sin70 / sin 37 = μ₂ / 1.8

.939 / .602 = μ₂ / 1.8

1.56 =  μ₂ / 1.8

μ₂ = 2.81 .

The value of refraction index for the second medium will be  \(\mu_2=2.16\)

Every material has a different refractive index. The refracted index of any material shows that the light is refracted by how much angle.

So like for water its value will be different also for glass its value will be different.

Now it is given in the question that

Angle of incidence \(i=70^o\)

Refractive index of the first medium \(\mu_1=1.8\)

Angle of refraction \(r=37^o\)

Now from snells law

\(\dfrac{Sin \ i}{Sin \ r} = \dfrac{\mu_2}{\mu_1}\)

\(\dfrac{Sin70}{Sin37} = \dfrac{\mu_2}{1.8}\)

\(\mu_2= \dfrac{Sin70\times1.8}{Sin37}\)

\(\mu_2=2.16\)

Thus the value of the refraction index for the second medium will be  \(\mu_2=2.16\)

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Detached listening can hinder effective communication and understanding between individuals. It is important for Jim to be actively involved and attentive during his meeting with his academic advisor to ensure he receives the necessary guidance and support for his academic decisions.

Jim is displaying the style of listening known as "detached." This style of listening is characterized by a lack of attention, interest, or engagement in the conversation. Jim's distraction with social media on his phone shows that he is not actively participating or focusing on what his academic advisor is saying. Additionally, his belief that the conversation is pointless because he plans to change his major indicates a disinterest in the discussion and a lack of motivation to actively listen and engage with his advisor.

Detached listening can hinder effective communication and understanding between individuals. It is important for Jim to be actively involved and attentive during his meeting with his academic advisor to ensure he receives the necessary guidance and support for his academic decisions. By actively participating and listening, he can make more informed choices about his major and benefit from the advice and expertise of his advisor.

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Jim is displaying detached listening as he is being physically present in conversation with his academic advisor but his focus is elsewhere, particularly, his phone.

The style of listening that Jim is displaying is detached. This is because he is not paying attention to his advisor and is instead distracted by his phone. Detached listening is when one is physically present in a conversation but not mentally or emotionally engaged. Examples include browsing on the phone or thinking about other things while someone is talking.

In contrast, active or involved listening would involve fully concentrating, understanding, responding, and then remembering what is being said. Considering that Jim is mainly focused on his phone, he is not displaying any signs of this type of engagement with his advisor, hence, detached is the appropriate choice to describe his listening style.

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Answer:

a)It is NOT possible using this telescope, to see the two stars as separate stars

b)\(d_{min} =28.466m\)

Explanation:

From the question we are told that:  

Diameter of lens,\(d = 25 cm \approx 0.25 m\)

Distance from both star \(D_f= 2*10^{17} m\)

Distance between both stars \(D_b= 6*10^9 m\)

Wavelength of light \(\lambda =700 nm \approx 700*10^-9 m\)

Generally the equation for angle subtended by the two stars at the lens  is mathematically given by

 \(\theta=\frac{D_f}{D_b}\)

 \(\theta=\frac{6*10^9}{2*10^{17}}\)

 \(\theta=3.0*10^{-8} rad\)

Generally the equation for minimum angular separation of two object is mathematically given by

\(\theta_{min} = 1.22*\lambda/d\)  

\(\theta_{min}= \frac{1.22*700*10^-9}{0.25}\)  

\(\theta_{min}= 3.416*10^-^6 rad\)

Therefore

 \(\theta < \theta_{min}\)

\(3.0*10^{-8} rad< 3.416*10^-^6 rad\)

It is NOT possible using this telescope, to see the two stars as separate stars

b)

Generally the equation for minimum diameter of the lens is mathematically given by

  \(d_{min} =\frac{ 1.22*\lambda}{\theta}\)

  \(d_{min} =\frac{ 1.22*700*10^{-9}}{3*10^{-8}}\)

  \(d_{min} =28.466m\)

The acceleration of the baseball is approximately 41.379 m/s².

When a baseball player hits a baseball, the force exerted on the ball causes it to accelerate. To find the acceleration of the baseball, we can use Newton's second law of motion, which states that force is equal to mass multiplied by acceleration (F = ma).

In this case, the force exerted by the baseball player is given as 6 N, and the mass of the baseball is 0.145 kg. We can rearrange the formula to solve for acceleration:

a = F / m

Substituting the given values:

a = 6 N / 0.145 kg

Now, let's calculate the acceleration:

a ≈ 41.379 m/s²

Therefore, the acceleration of the baseball is approximately 41.379 m/s².

In the given answer choices, the correct option is B. 41.4 m/s².

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Answer:

C) plate movement at fault lines.

Explanation:

Earthquakes are vibrations that develop when there is a build-up of stress in the Earth's crust resulting in plate movement at fault lines. Most often, earthquakes occur at subduction zones.

The acceleration experienced by the piano is 5.59 m/s².

The net force on the piano is the resultant force acting on the piano and it will determine the direction of the acceleration of the piano.

The tension on the rope pulling up the piano is equal to the weight of the piano.

T(upward) = W(down)

where;

T = W = 789 N

W = mg

where;

m = W/g

m = (798 N) / (9.8 m/s²)

m = 81.43 kg

The acceleration of the piano is calculated as follows;

F(net) = ma

a = F(net) / m

a = (455 N) / (81.43 kg)

a = 5.59 m/s²

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By Ohm's Law, the voltage across the circuit is D. 12 v.

We need to know about Ohm's Law to solve this problem. Ohm's Law describes the relationship between voltage and current. It can be determined as

V / I = R

where V is voltage, I is current and R is resistance.

From the question above, we know that

I = 0.5 A

R = 24 Ω

By substituting the following parameters, we can calculate the voltage

V / I = R

V = I x R

V = 0.5 x 24

V = 12 volt

Hence, the voltage is 12 volts.

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Answer:

True

Explanation:

True, the peripheral nervous system is responsible for both sending and receiving signals to and from the brain.

Answer:

true

Explanation:

The stellar spectral classes are correctly ordered from coolest to hottest in option **B. ABFGKMO**.

Stellar spectral classification is a system used to categorize stars based on their observed spectra, which is the distribution of light emitted or absorbed by a star at different wavelengths. The classification scheme was initially developed by astronomer Annie Jump Cannon and has been refined over time.

Stellar spectral classes are a classification system that categorizes stars based on their surface temperature. The sequence starts with class A, which represents hotter stars, and progresses to class M, which represents cooler stars. In the given options, option B has the correct order, starting with class A (hottest) and ending with class M (coolest). The inclusion of classes B, F, G, K, and M in this order aligns with the correct progression from hottest to coolest stars.

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Actinopterygii and Sarcopterygyii are both groups of fish that have evolved many diverse morphological adaptations.

The Actinopterygii are characterized by the presence of rayed fins, while the Sarcopterygyii have fleshy fins and a well-developed lobe-like structure. The major features that distinguish the Actinopterygii from the Sarcopterygyii are their fins and the structure of their skeletons. The Actinopterygii have fins with bony spines and rays, while the Sarcopterygyii have fins with fleshy, muscular lobes that are supported by a well-developed internal skeleton.

The latter group is a more likely candidate for the origin of tetrapods for several reasons.

First, the Sarcopterygyii have a more complex and robust skeleton than the Actinopterygii, which is necessary for supporting the weight of a tetrapod body. Second, the fleshy fins of the Sarcopterygyii are more similar to the limbs of tetrapods than the rayed fins of the Actinopterygii.

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