a zebra starts from rest and accelerates at 1.9 m/s2 what will be the acceleration after 5 seconds

The feedback loop that reverses or stops a change is known as a balancing feedback loop.

A balancing feedback loop usually results in oscillation or movement in the direction of equilibrium. The capacity of the oceans to store heat, which helps keep global temperatures within habitable ranges, is an illustration of a negative, or balancing, feedback loop. The capacity of plants and soil to absorb carbon dioxide and remove it from the atmosphere is another unfavorable feedback loop. A negative feedback loop results in equilibrium. The result of a positive feedback loop is rapid development (or fall). A system with a positive feedback loop may begin close to equilibrium, but with time, it will drift further away from it.

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Answer:

0.87 g per ml

Explanation:

D=M/V

43.5/50=0.87

Answer:

K.E. = 49000 J

Explanation:

K.E. = 1/2 m v^2

Where

K.E. = Kinetic Energy

m= mass

v= velocity

Simply replace

K.E. = 1/2 (0.2 kg) (700 m/s)^2

K.E. = 49000 J

Note that the units convert to J here

I hope this helped!

The greatest beat frequency the listener will receive from this system is approximately 10.88 Hz.

The listener will be able to distinguish the individual beats produced by the two speakers on the rotating turntable.

To solve this problem, we need to consider the relative motion between the speakers and the listener due to the rotation of the turntable.

Given:

Diameter of the turntable: 1.5 m

Rotation speed of the turntable: 75 rpm

Wavelength of sound emitted by each speaker: 31.3 m

(a) To find the greatest beat frequency the listener will receive, we need to determine the relative velocity between the speakers and the listener.

The circumference of the turntable can be calculated using the formula: circumference = π * diameter.

Circumference = π * 1.5 m = 4.71 m.

The distance between the two speakers (which is also the wavelength of sound emitted by each speaker) is 31.3 m.

Since the turntable is rotating, the relative velocity between the speakers and the listener can be calculated using the formula: relative velocity = 2 * π * radius * rotation speed.

The radius of the turntable is half of its diameter, so radius = 1.5 m / 2 = 0.75 m.

Relative velocity = 2 * π * 0.75 m * (75 rotations/min * 1 min/60 s)

Relative velocity = 2 * π * 0.75 m * (75/60) s^(-1)

Relative velocity = 2.36 m/s.

The beat frequency can be calculated using the formula: beat frequency = |velocity of sound / wavelength of sound emitted by each speaker - relative velocity / wavelength of sound emitted by each speaker|.

The velocity of sound is approximately 343 m/s.

Beat frequency = |343 m/s / 31.3 m - 2.36 m/s / 31.3 m|

Beat frequency = |10.96 Hz - 0.075 Hz|

Beat frequency = 10.88 Hz (rounded to two decimal places).

Therefore, the greatest beat frequency the listener will receive from this system is 10.88 Hz.

(b) To determine if the listener will be able to distinguish individual beats, we need to compare the beat frequency with the listener's ability to perceive separate frequencies.

The human ear can typically perceive individual beats when the beat frequency is below 20 Hz. In this case, the beat frequency is 10.88 Hz, which is below the threshold for distinguishing individual beats.

Therefore, the listener will be able to distinguish the individual beats produced by the two speakers on the rotating turntable.

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These Milky Way companion galaxies are easily visible from dark locations in the Southern Hemisphere. Prime examples of erratic galaxies are the Large and Small Magellanic clouds (left and right, respectively).

In comparison to a rich cluster, the poor cluster typically has a slightly more erratic shape. A number of smaller galaxies orbit each major spiral. The Small and Large Magellanic clouds are the two most well-known examples of atypical galaxies.

When two galaxies collide, irregular galaxies frequently result. This unusual Cartwheel Galaxy was created when a tiny galaxy slid through the centre of a massive spiral galaxy.

Therefore, Rich clusters are other clusters that include hundreds to thousands of galaxies. A weak cluster can't cling to its members strongly because of its low bulk.

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Answer:

No, there are multiple ways in which different mutations in the same gene can cause the same phenotype

Explanation:

Several different mechanisms of mutation can lead to the same phenotype. For example, lets say our phenotype is that flies have white eyes, and we know that this occurs in one particular gene that normally makes the eye colour red. (the red gene)

These mutations likely rendered the red gene ineffective (as the eyes are not red). However, this could happen in a variety of ways.

There could be a single base deletion in the first exon of the mRNA, changing the reading frame of the protein and messing up the entire sequence (a frame shift mutations)

The entire gene could be deleted

A single base could be substituted in an important site of the gene, for example, one which translates into a catalytic residue or binding site in the protein

There could be an inversion at the promoter region of the gene, such that a transcription factor can no longer bind to transcribe the gene.

There are countless other ways in which a mutation could have been caused. Therefore, just because we know the same gene is affected does not mean that we can assume the mutations are identical.

#1

Red has the largest wavelength.(750nm)

#2

Blue has the shortest wavelength (400nm)

#3

Red color is least bent.

#4

Violet color is most bent

#5

Attachment attached

When light passes from air to glass, it bends toward the normal and slows down

Describe refraction.

Refraction is the bending of light as it travels through transparent media into other transparent media (it also occurs with sound, water, and other waves). We can use lenses, magnifying glasses, prisms, and rainbows because of this refractional bending. This light bending is essential for even our eyes.

A medium having a lower refractive index allows light to move through it more quickly than one with a higher one. Light moves more slowly in glass than in air because glass has a higher optical density. Light slows down when it travels from air to glass. As a result of glass's higher density than air, light cannot easily flow through it. Ray will converge on the norm.

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According to diagram, the approximate abundance of oxygen atoms in the galaxy is 1/1000 that of hydrogen.

If we look along the vertical axis, we find that the point for oxygen lies about halfway between the points  10−4 and 10−2, near to 10−3, which is 0.001 or 1/1000. Therefore, the abundance of oxygen atoms is about 1/1000 that of hydrogen.

The general trend in elemental abundance in our galaxy: There is a general trend of increasing abundance with increasing atomic number. Exceptional rule is that elements with odd atomic numbers tend to be more abundant compared to elements with even atomic numbers. These abundances decrease smoothly from atomic number of 6 to atomic number of 20. These abundances fluctuate randomly.

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The guitar string undergoes 30,720 oscillations each minute, which is not among the given options. However, it is closest to option B) 30,700.

We're given that the frequency of the guitar string's vibration is 512 Hz, which means it undergoes 512 oscillations per second. We need to find out how many oscillations it undergoes each minute.
Step 1: Convert the frequency from oscillations per second (Hz) to oscillations per minute.
To do this, we'll multiply the frequency (in Hz) by the number of seconds in a minute.

Step 2: Calculate the number of oscillations per minute.
Frequency (Hz) = 512 oscillations/second
Number of seconds in a minute = 60 seconds
Oscillations per minute = (Frequency in Hz) * (Number of seconds in a minute)
Oscillations per minute = (512 oscillations/second) * (60 seconds)

Step 3: Calculate the result.
Oscillations per minute = 30720 oscillations
It is important to note that the actual answer is 30,720, but if you must choose from the given options, B) 30,700 is the closest approximation.

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Integrating the given acceleration function twice, we find that the the position of the particle at time t = 14 is 10039 units.

Acceleration function: a(t) = 18t+18

To find the velocity function, we integrate the acceleration function with respect to time:

v(t) = ∫ a(t)dt = ∫(18t+18)dt=9t2 + 18t + C1

We know that the velocity at time t = 0 is v(0) = 3, , so we substitute these values into the velocity equation to find the constant C1 :

v(0) = 9(0)2 + 18(0) + C1 = C1 =3

Therefore, the velocity function is: v(t) = 9t2 + 18t + 3

To find the position function, we integrate the velocity function with respect to time:

s(t) = ∫v(t)dt = ∫( 9t2 + 18t + 3) dt = 3t3 + 9t2 + 3t + C2

We know that the position at time t = 0 is s (0) = 1, so we substitute these values into the position equation to find the constant C2 :

s(0) = 3(0)3 + 9(0)2 + 3(0) + C2 = C2 = 1

Therefore, the position function is: s(t) = 3t3 + 9t2 + 3t + 1

To find the position at time t = 14, we substitute t = 14  into the position equation:

s(14) = 3(14)3 + 9(14)2 + 3(14) + 1

s(14) = 3(2744) + 9(196) + 42 + 1

s(14) = 8232 + 1764 + 42 + 1

s(14) = 10039

Therefore, the position of the particle at time t = 14 is 10039 units.

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Answer:

A. Filtration

Explanation:

Chromatography can not be used to seperate A(l) from the mixture. And you can not even perform the method since B(s) is present.

As for distillation, this process is used to seperate liquid from mixture of liquids. Filtration is effective in seperation of liquid and solid.

The concentration of solution C = 0.24M.

In chemistry, concentration is determined by dividing a constituent's abundance by the total volume of the mixture. There are four main types of mathematical descriptions for concentration: mass concentration, molar concentration, number concentration, and volume concentration.

A = obsorbance

E = Molar Co-efficience

l = path length

we will use beer-lambert's law, to find the value of E

A = ECl

find the E value

1.1 = E * 0.61 * 2

E = 0.9016

find the concentration of the solution B

0.45= 0.9016 * C* 2

C = 0.24M

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Answer:

v = 24 m/s, rightwards

Explanation:

Given that,

The mass of TBT explosive = 5 kg

It explodes into two pieces.

One of the pieces weighing 2.0 kg flies off to  the left at 36 m/s. Let left be negative and right be positive.

The law of conservation of momentum holds here. Let v be the final speed of the remaining piece. So,

\(5\times 0=2\times (-36)+3\times v\\\\-72=-3v\\\\v=24\ m/s\)

So, the final speed of the remaining piece is 24 m/s and it is in the right direction.

A planes average speed between two cities is 610 km/hr. If the trip takes 2. 25 hrs, then the distance covered by a plane is  1372.5 kilometers.

To calculate the distance the plane flies, we can use the formula:

Distance = Speed × Time

Given that the average speed of the plane is 610 km/hr and the trip takes 2.25 hours, we can substitute these values into the formula to find the distance.

Distance = 610 km/hr × 2.25 hrs

To multiply these values, we need to align the units correctly. By canceling out "hrs" in the numerator and denominator, we get:

Distance = 610 km × 2.25

Multiplying 610 km by 2.25 gives us:

Distance = 1372.5 km

Therefore, the plane flies a distance of 1372.5 kilometers.

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Given that a plane's average speed between two cities is 610 km/hr and the trip takes 2.25 hrs. We are to find the distance covered by the plane The plane flies 1372.5 km

Let's find the solution to this problem .The formula for distance, speed and time isd

= s * there,

d = distance covered by the planes

= speed t

= time taken

Substituting the given values, we have610 × 2.25 = 1372.5 km

Hence, the plane flies 1372.5 km.

Given that a plane's average speed between two cities is 610 km/hr and the trip takes 2.25 hrs. We are to find the distance covered by the plane

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A kind of mass movement in which materials move fast in a disorganized, chaotic fashion mixed with water is a debris flow.

Debris flow is a type of mass movement or landslide characterized by the rapid movement of a mixture of water, rock fragments, soil, and other debris down a slope. It typically occurs in mountainous or hilly regions with steep slopes and is triggered by heavy rainfall, snowmelt, or other sources of water.

During a debris flow, the materials become saturated with water, causing them to lose cohesion and flow downhill in a turbulent and uncontrolled manner. The movement is often fast, chaotic, and disorganized, with a mix of solid particles and water acting as a fluid-like mass.

Debris flows can cause significant damage to infrastructure, property, and life, as they can carry large volumes of material and have considerable destructive force.

In summary, a debris flow refers to a type of mass movement in which materials, such as rocks, soil, and debris, move rapidly in a disorganized and chaotic fashion mixed with water. It is an important geological phenomenon that can have severe consequences in areas prone to such events.

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Answer:

So the answer would be no, because the medium 1 value must be greater than the value of medium 2.

Explanation:

The value of n1 must be greater than the value of n2.

Medium 1 - Index of Refraction (n1): 1.52  

Medium 2 - Index of Refraction (n2): 1.92

I think that is correct

The length of the x-component of the vector is approximately 48.55 units.

To find the length of the x-component of the vector, we need to use trigonometry.

We can use the angle and the magnitude (length) of the vector to find the x-component using the formula:

x-component = magnitude x cos(angle)

Plugging in the values given, we get:

x-component = 52 units x cos(21⁰)

x-component = 52 units x 0.9336

Multiplying these two numbers, we get:

x-component ≈ 48.55 units

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Answer:

h = 11.47 m

Explanation:

Initial speed pf the t-shirt gun is 15 m/s

We need to find the maximum distance covered by the t-shirt. It is based on the conservation of energy. The maximum distance covered is given by :

\(h=\dfrac{u^2}{2g}\\\\h=\dfrac{(15)^2}{2\times 9.8}\\\\h=11.47\ m\)

So, it will cover a distance of 11.47 m.

Answer:

Read the explanations ●

Explanation:

Electric power is the rate which energy is transformed to or from a part of an electrical circuit. A battery can deliver energy or a circuit element , the power is equal to the voltage difference across the element multiplied but the current...

Answer:

See explanation below -

Explanation:

Electrical power is, by definition, the rate at which electrical energy is absorbed in a circuit. However, we are asked the electrical power with respect to current.

This is a perfect example of Ohm's law, or the formula of power. It defines the relationship between power, voltage and current, as such -

P = VI

As you can see, electrical power is directly proportional to the current.

Now the potential difference is also recognized as the voltage, and is similarly directly proportional to the electrical power.

Hope that helps!

The unit tangent vector T(t) for the curve defined by r(t) = (e², 2t, e) at t = 2 is \(\[T(2) = \left(\frac{e^2}{\sqrt{e^4 + 16 + e^2}}, 4, e\right)\]\). The unit normal vector N(t) for the curve at \(\[N(2) = \left(\frac{-2e^2}{\sqrt{4e^4 + 1}}, 1, 0\right)\]\).

The normal acceleration ar at \(\[ar(2) = \frac{\sqrt{4e^4 + 1}}{\sqrt{e^4 + 16 + e^2}}\]\). The tangential acceleration at t = 2 is aT(2) = 0 since the curve is defined as a straight line and has no curvature.

To find the unit tangent vector T(t), we take the derivative of the position vector r(t) with respect to t and normalize it by dividing by its magnitude. The derivative of \(\[T(t) = \frac{(e^2, 4, e)}{\sqrt{e^4 + 16 + e^2}}\]\).

To find the unit normal vector N(t), we differentiate T(t) with respect to t and normalize the resulting vector. The derivative of T(t) is (0, 0, 0), which means the curve is a straight line. Therefore, N(t) is constant and given by \(\[N(t) = \frac{(-2e^2, 1, 0)}{\sqrt{4e^4 + 1}}\]\).

The normal acceleration ar at t = 2 is the magnitude of the derivative of T(t) with respect to t, which simplifies to \(\[\frac{\sqrt{4e^4 + 1}}{\sqrt{e^4 + 16 + e^2}}\]\).

Since the curve is a straight line, there is no change in the direction of the velocity vector, and therefore, the tangential acceleration aT is zero.

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Answer:

Mode = Millie

Explanation:

In statistics, the mode is the most frequently occurring value in a set, or, in this case, the most frequent name.

We see Millie 4 times

Joshua 3 times

Lena 1 time

Holly 1 time

Oscar 1 time

And Finn 1 time

Since the name, "Millie", is the most frequent name in the set, that is the mode.

Answer:

hope that pic helps!! let me know!!

Explanation:

or this expert answers from expert

For a successful final touch of a construction venture, key stakeholders consisting of the consumer/proprietor, architect/layout group, and creation contractor are crucial. Risk management is necessary to perceive and mitigate capacity risks, ensuring project success and minimizing disruption

The 3 important stakeholders for the development of a new mall in Alexandra are:

During the construction of an avenue in a particular network, the network is represented by:

Local Authorities: The local authorities, which include the municipal or city council, represent the community's pastimes. Their duties consist of engaging with the network to apprehend their needs and issues associated with the road construction project.

Before any sort of Civil Engineering mission is executed, the subsequent steps want to be taken to ensure the viability of the challenge:

The hierarchy of running for a contractor sporting out the development of a bridge typically consists of the subsequent degrees:

To draw the bar chart (also referred to as a Gantt chart) for a 50 km street creation undertaking with a duration of 10 days, the chart could represent the obligations and their respective intervals. However, a standard bar chart for an avenue creation undertaking may also include duties including surveying, excavation, laying subbase, paving, and street markings, amongst others.

The horizontal axis represents the timeline (in days), and the vertical axis represents the responsibilities. Each undertaking is represented with the aid of a horizontal bar that suggests its length.

Question 2 (10):

2.1 Risk control is vital in a venture for the following motives:

Overall, change management is important for figuring out, analyzing, and responding to risks in a systematic and proactive manner. It enables ensuring task success by using lowering uncertainties and maximizing opportunities for task delivery within the preferred parameters.

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Three main sources of electrical energy generation 40 years from now would predictably be:

Renewable energy which includes sources such as solar, wind, geothermal, and hydroelectric power, which are considered to be sustainable and have low environmental impact. As concerns about climate change and the need to reduce carbon emissions continue to grow, it is likely that renewable energy sources will play an increasingly important role in meeting energy needs.

Nuclear power plants are a reliable and low-carbon source of energy, but have a lot of concerns regarding safety, waste and proliferation. Natural gas is considered a transition fuel, as it emits less carbon dioxide than coal, but more than renewable energy sources.

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Answer:

The time required to reach a speed of 70 km/h km/h with constant acceleration, starting from rest, is approximately 20 seconds.

Explanation: