An object, moving with a constant velocity, travels 274 m in 23 s, What is its velocity?

By solving the given equation on [² f(u)du = t_ -L₁ €² 2 f(u)du is obtained, we can find t.= J 1+e²t / 1 + e2t / 1-e²tdt. Now, we need to solve the integral,∫ 1+e²t / (1 + e2t)(1-e²t) dt.

For this integral, let u = 1+ e²tSo, du/dt = 2e²And, dt = du/2e²= 1/2e² ∫1+e²t / (u)(1-e²t) du= 1/2e² ∫ (1/u) - (e²/(1-e²t)) du= 1/2e² [ln|u| - ln|1-e²t|] + c.

Now, substituting back the value of u,= 1/2e² [ln|1+ e²t| - ln|1-e²t|] + c= 1/2e² ln|1+ e²t / 1-e²t| + c.

Now, putting the limits in the above expression and solving it, we get the value of t.= [1/2e² ln|1+ e²t / 1-e²t|] t = 1 2t / [1 + e²t] - L₁ 2t / [1-e²t].

Hence, the answer is D) f(t)= 2t / [1 + e²t] - L₁ 2t / [1-e²t].

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Answer:

Yes

Explanation:

On the moon there is no gravity. So if there is no gravity pulling the weight down a weight can as light as a feather.

Answer:

294 mAmps

Explanation:

The two resistors are equal to   22 * 75 / ( 22+ 75) = 17.01 ohm

V = IR

V/R = I

5 / 17.01 = .294 A

Answer:

0.02N

Explanation:

According to Newton's 3rd Law of motion, the bee exerts the same force on the bowling ball as the bowling ball exerts the force on the bee.

We have that for the Question "A 60kg bowling ball collides with a 0.005kg bee with a force of 0.02N. The force the bee exerts is" it can be said that The force the bee exerts is

F=0.02N

From the question we are told

A 60kg bowling ball collides with a 0.005kg bee with a force of 0.02N. The force the bee exerts is

Generally the Newtons  equation for Motion  is mathematically given as

This law perceives two bodies who collide as having forces which are equal as the magnitudes in opposite directions

Therefore

V^2= 2as

Hence

The force the bee exerts is

F=0.02N

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Answer:

it's ans is D because all three are wrong

Examples of student-led organizations are:

The benefits of getting involved in any of these are many. They include but are not limited to:

Learn more about student organizations in the link below:

Answer:

The length is \(s = 3.73 \ m\)

Explanation:

From the question we are told that

  The speed is  \(v = 3.054 \ m/s\)

  The acceleration \(a = -0.7762 m/s^2\)

   The time taken is  \(t = 1.51 \ s\)

Generally from kinematics equation the length of the inclined plane is mathematically represented as

         \(s =ut + \frac{1}{2} * at^2\)

=>      \(s = 3.054 *1.51 + \frac{1}{2} * (-0.7762) *(1.51)^2\)

=>   \(s = 3.73 \ m\)

The acceleration of the airboat  is 2.2m/s^2 and starting from rest, it take the airboat to reach a speed of 12.0 m/s is 5.45s

Given mass of airboat (m) = 3.50 x 10^2kg

horizontal force of engine (F) = 7.70 x 10^2N

We know that from newtons laws of motion Force = mass x acceleration such that F = ma

(a) Now a = F/m = 7.70 x 10^2 / 3.50 x 10^2 = 2.2m/s^2

(b) Initial speed of airboat (u) = 0m/s

final speed (v) = 12m/s

We have acceleration a = 2.2m/s

Then we have another newtons law as: v = u+ at where t is the time taken

So t = v/a = 12/2.2 = 5.45s

Hence it takes to reach 5.45s a speed of 12m/s

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Answer:

I would say the one that makes the most sense would probably have to be Disciplining employees is part of just about every manager's job so letter D  

Disciplining employees is part of just about every manager's job is the correct answer and the correct option is (D).

The best advice to give Grayson is that disciplining employees is part of just about every manager's job. While it may be uncomfortable or challenging to provide constructive criticism or address performance issues, it is an essential responsibility of a manager to ensure that the team is functioning efficiently and meeting organizational goals. Managers need to provide feedback, set expectations, and address any performance or behavior concerns in a respectful and supportive manner.

Being a manager involves not only providing positive feedback and encouragement but also addressing areas where improvement is needed. Effective managers can create a balance between recognizing employees' achievements and guiding them to improve when necessary. Developing strong leadership skills includes the ability to handle challenging situations and have difficult conversations when required to maintain a productive and cohesive team.

Therefore, Disciplining employees is part of just about every manager's job is the correct answer and the correct option is (D).

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Answer:

Explanation:

A 60W bulb , consumes electrical energy of 60 J per second but it does not give out all the energy in the form of light . Most of the energy consumed by it is wasted in the form of heat . Only a fraction of energy is converted into light energy .

Hence, it is wrong to say that bulb supplies 60 J of light energy each second .

Given

The bending ability of a substance is recorded on the index of refraction.

To find

If the statement is true or false

Explanation

While a light is refracted to a denser medium then the light bents towards the normal and if it is refracted to a rarer medium, the light bends away from the normal

Thus the bending ability depends on the refractive index of the medium

Conclusion

The given statement is True

Answer:

Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward one another. On Earth, gravity gives weight to physical objects, and the Moon's gravity causes the ocean tides.

the required equation for centripetal force is F = k m¹ v¹ r⁻¹.

A particle traveling uniformly in a circle experiences a centripetal force, F, which is dependent on the mass (m), velocity (v), and radius (r) of the circle.

the F formula using the dimensions method is

Suppose F = k mᵃvᵇrⁿ. (i)

Where a, b, and n are the respective powers of m, v, and r and k is the dimensionless constant of proportionality.

Upon putting the measurements of various amounts in (i)

we get

[M¹L¹T‐²] = Mᵃ[LT‐¹]ᵇ Lⁿ

=> [M¹L¹T‐²] = Mᵃ Lᵇ Lⁿ T⁻ᵇ

=> [M¹L¹T-²] = Mᵃ Lᵇ⁺ⁿ T⁻ᵇ

on comparing both sides we get

a = 1

b+n = 1

-b = -2 => b = 2

Then n = -1

Onputting these values in (i),

we get

F = k m¹ v¹ r⁻¹

Or

F=k(mv²)/r

This is the required equation for centripetal force.

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Answer: True

At the solstice in June, the vertical rays from the sun strike directly overhead at the Tropic of Cancer, which is located at 23.5 degrees north of the Equator.

The vertical rays from the sun strike directly overhead at the Tropic of Cancer because the Earth's axis is tilted at an angle of 23.5 degrees, causing the Northern Hemisphere to receive more direct sunlight during the June solstice.

The Tropic of Cancer is located at 23.5 degrees North latitude, and therefore receives the most direct sunlight during this time. This is also the reason why the Northern Hemisphere experiences the longest day of the year during the June solstice, while the Southern Hemisphere experiences the shortest day of the year.

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The greater distance between the pith balls, the lesser the amount of electric charge that exists between them.

When silk is used to rub a glass rod, some electrons are removed from the rod. As a result, the rod acquires a positive charge. Two pith balls are positively charged when a positively charged rod is touched to them.

The pith balls are charged and brought into contact with one another. They charge equally and repel one another. The level of repulsion of the hung pith ball varies as the position of the movable pith ball is altered.

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Answer:

(Question) Which of the following statements about electrical charges is true?

(Answer) Two positive charges repel each other.

(Question) Observing a set of pith balls with positive charges, how does the distance between the pith balls affect the electric electrical charge?

(Answer) The greater the distance between the pith balls, the greater the amount of electric charge that exists between them.

(Question) Which of the following interactions in the data set below will have an attractive electrical force?

(Answer) Interaction A and B

(Question) in which of the following interactions will the amount of force between the two objects be the strongest?

(Answer) Interaction A

(Question) Which of the following statements accurately reflects the relationship between force and distance in Coulomb’s Law?

(Answer) They are inversely proportional; as distance increases, the force between two charges will decrease.

Explanation:

i just finished the quick check

By unit conversion, the area of rectangular field park is 619.59 m².

We need to know about unit conversion to solve this problem. The unit conversion can be used to convert a unit to another unit. It can be defined as

a = xb

where a is unit a, b is unit b and x is the constant of conversion.

From the question above, we know that

w = 58.5 ft

l = 114 ft

Convert the width and length to meter (1 ft = 0.3048 m)

w = 58.5 ft

w = 58.5 x 0.3048 m

w = 17.83 m

l = 114 ft

l = 114 x 0.3048 m

l = 34.75 m

Find the area

A = w x l

A = 17.83 x 34.75

A = 619.59 m²

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Answer:

False

Explanation:

Just took the test

False, because hypochondriacs think they have a significant, undetected medical ailment even when testing reveal they are healthy.

A hypochondriac is someone who, despite diagnostic testing showing they have no health issues, lives in constant anxiety that they have a terrible, undetected medical illness. They are obsessed with the concept that they suffer from a major illness that has gone untreated.

In adults, hypochondriasis often begins to manifest. Among the symptoms are a persistent, strong anxiety of developing a major illness and concern that seemingly little symptoms portend a larger problem. A patient may change physicians or see them regularly.

Medication and counselling could be helpful.

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When a neuron is in the resting potential state, the neuron is negatively charged on the inside and positively charged on the outside.

When a neuron is not actively responding to an electrical input, which is commonly accepted to be when it is in its resting state, there is widespread consensus that the neuron is in its resting state. The charge on the neuron's inner membrane is now higher than the charge on the neuron's outer membrane. Because of the selective permeability of the cell membrane, the various ion concentrations on either side of the membrane are unable to get balanced with one another.

When the membrane is in its resting state, it is permeable to the passage of potassium ions (K⁺). In the same way as chloride (Cl⁻) ions find it difficult to move through a resting state, sodium (Na⁺) ions also find it difficult to do so. There is a membrane that stops negatively charged proteins with an anion difference of one (A⁻) from passing into neighboring neurons.

A pump is also present in the neuronal cell membrane, and this pump requires energy in order to remove three ions of sodium for every two ions of potassium that enter the cell. A neuron's resting potential can be defined as the voltage difference that exists between the neuron's interior and its outside in the absence of any external influences.

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Answer:

b. between 2 s and 4 s

Explanation:

2-4 was both 3m/s

Answer:

Different wavelengths of light also have different frequencies, so the "individual" waves of light are different.

So when you see a given spectra, you are actually watching a superposition of different light waves, and as the waves do not interact that much between them, you can see the different colors.

You can think this similarly as the case with two different sound waves, one high in pitch, and another low.

You can easily identify them, as they do not collide between them.

Now, if you are asking "why the spectrum has different colors".

This is because the levels of energy in each element are different, the outer electrons have weaker bonds, so they will emit photons with less energy (larger wavelength) and so on.

So there are multiple wavelengths because electrons with stronger and weaker bonds are jumping between states at the same time.

The mass of copper that is left unreacted at the end of the chemical reaction is 1.90 g

The mass of copper that is left untreated at the end of the chemical reaction is determined as follows:

Mass of copper before the reaction = 3.55 g

Mass of iodine before the reaction = 4.60 g

Mass of product = 6.25 g

According to the law of conservation of mass;

Mass of reactant = mass of product + mass of unreacted copper

Mass of reactants = 3.55 + 4.60

Mass of reactants = 8.15 g

The difference in the mass of the product obtained and the mass of the unreacted copper

Mass of unreacted copper = 8.15 g - 6.25 g

Mass of unreacted copper = 1.90 g

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The given amplifier circuit is a common-source amplifier. The equivalent circuit diagram of the amplifier includes a MOSFET N5486 transistor. We can determine the drain current (ID) and drain-source voltage (VDS) using the following equations:

1. Voltage at the source terminal (VS) is calculated using Ohm's law: VS = IS x RS.2. The drain current (ID) can be calculated using the equation ID = IS (1 + GVin), where Vin is the input voltage, G is the voltage gain, and IS is the current flowing through RD.Let's calculate the values of ID and VDS:

Given:- IS = VDD / RD = 10V / 10Ω = 1A- Vin = -1V / (1.5 x 10^6Ω + 0.47μF) = -0.6666667μA (using voltage divider rule)- G = -RD / RS = -10Ω / 3kΩ = -0.003333 Calculating ID:ID = 1A (1 - 0.003333 x 0.6666667 x 10^6)≈ 0.997A = 997mACalculating VDS:VDS = VDD - IDRD= 10V - 997mA x 10Ω≈ 10V - 9.97V≈ 0.03VTherefore, the values of ID and VDS are approximately ID = 997mA and VDS ≈ 0.03V, respectively.

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Answer:

B train!

Explanation:

A train travelled at 40 km/hr. (120/3)

B train traveled at 45 km/hr (180/4)

Answer:

Train B

Explanation:

Let's find each train's speed using the following formula.

\(s=\frac{d}{t}\)

where \(d\) is distance and \(t\) is time.

Train A

Train A travelled a distance of 120 kilometers in 3 hours.

\(s=\frac{d}{t}\\d=120 km\\t= 3hrs\)

Substitute the values into the formula and divide.

\(s=\frac{120km}{3hrs}\\\)

\(s= 40 km/hr\)

Train B

Train B travelled a distance of 180 kilometers in 4 hours.

\(s=\frac{d}{t}\\d=180 km\\t= 4hrs\)

Substitute the values into the formula and divide.

\(s=\frac{180km}{4 hrs}\\\)

\(s= 45 km/hr\)

45 kilometers per hour is greater than 40 kilometers per hour, so Train B travelled faster.

a) Given that the Hill function is (R+a) · (v + b) = b(Ro + a)Here, R = resistance, Ro = maximal resistance, v = cadence, a, b are constantsGiven, maximal resistance, Ro = 75 Newtons,Resistance, R = 0, cadence, v = 180 rpmResistance, R = 10 Newtons, cadence, v = 100 rpmWe have to calculate a and b.For R = 0, v = 180, 10a + 180b = 75b, and b = (10a/−100 + 9/2)For R = 10, v = 100, 20a + 100b = 750 − 75

a.Substitute the value of b in the above equation.20a + 100(10a/−100 + 9/2) = 750 − 75a20a − 10a + 450 = 750 − 75a10a = 300a = 30Substitute the value of a in the equation (10a/−100 + 9/2) = b(10/−100 + 3/2)b = 15/16Therefore, the value of a is 30 and the value of b is 15/16. Hence, we got the value of a and b.b) Here the Hill function is (R+a) · (v + b) = b(Ro + a)Substituting the value of a and b in the equation, we get (R + 30) (v + (15/16)) = (15/16)(75+30)R + 30 = (15/16)105R = (105(v + (15/16)) − 2475)/15R = (7(v + (15/16)) − 165)/15

Therefore, the formula for R as a function of v is given by R = (7(v + (15/16)) − 165)/15.c) Long-term behavior of R is the value of R when v approaches infinity. Thus, the limiting value of R when v approaches infinity is Ro, i.e. 75 Newtons. Thus, the long-term behavior of R is that as the cadence increases, the resistance approaches its maximal value. This behavior is meaningful in the context of a stationary bicycle since maximal resistance represents the level of physical resistance that a cyclist may face.

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When two polarizing lenses are overlapped at right angles, the polarization axes are perpendicular to each other. In this configuration, option d) "none of the light would pass through" is correct.

When two polarizing sunglasses are overlapped at right angles to each other, the amount of light that passes through depends on the orientation of the polarization axes in each lens.

Polarizing sunglasses are designed to block light waves vibrating in certain orientations while allowing light waves vibrating in other orientations to pass through. The lenses have a built-in filter that transmits light waves with a specific polarization axis while absorbing or blocking light waves with perpendicular polarization axes.

Since the polarization axes of the two lenses are orthogonal, the first lens will block all the light waves that are not aligned with its polarization axis. The second lens, with its polarization axis at a right angle to the first lens, will also block all the remaining light waves that managed to pass through the first lens. As a result, no light would be able to pass through both lenses, and no light would be visible when looking at a light source through them.

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The result of part (b), where the uncertainty in position is approximately equal to the length of the square well does not directly compare with the actual ground-state energy.

The uncertainty principle which states that there is a trade-off between the precision of measuring position and momentum, does not directly provide information about the energy levels of the system.

The actual ground-state energy can be calculated using the Schrödinger equation and depends on the specific properties of the system, such as the mass of the particle and the potential energy of the well.

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Answer: b) one-third as great.

Explanation:

The options include:

a) three times greater.

b) one-third as great.

c) half as great.

d) two times greater.

e) the same.

Since the water heats up to 40°C and the room temperature is about 20°C before the start of the experiment, heat absorbed will be: (40°C-20°C).= 20°C

Since mystery metal heats up to 80∘C and the room temperature is about 20°C before the start of the experiment, heat absorbed will be: (80°C-20°C).= 60°C.

Therefore, based on the calculation, when compared to that of water, the heat capacity of our mystery metal is (20/60) = 1/3 one-third as great.

Answer:

The nuclear force

Explanation:

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