should the speed of the goose be increased or decreased to make the total momentum of the three birds add up to zero? verify your answer by calculating the required speed

Answer:

6.0 N

Explanation:

The strength of a force is expressed as the magnitude of the force in Newton.

The formula to apply here is :

Force= mass * acceleration

F=ma

Mass, m = 4 kg

Acceleration = 1.5 m/s²

Force= 4 *1.5 = 6.0 N

Answer:

The spring force is called a restoring force because the force exerted by the spring is always in the opposite direction to the displacement. This is why there is a negative sign in the Hooke's law equation. Pulling down on a spring stretches the spring downward, which results in the spring exerting an upward force.

Answer:

A

Explanation:

Answer:

Celsius scale; 315 K; Explanation: The scale used to express the temperature in Chicago in this problem is the Celsius scale.

Answer:

C. Volume

Explanation:

it displaces an equal amount of water to the amount of space it occupies.

Answer: i don't know

Explanation: still

According to the Ideal Gas Law, the value of rho is equal to the density of the gas.

The Ideal Gas Law states the relationship between pressure, volume, temperature, and the number of moles of a gas. It states that the ratio of pressure multiplied by the volume of a gas is equal to the number of moles of the gas multiplied by the universal gas constant and the temperature of the gas.

This can be derived by rearranging the equation to solve for rho.

Step 1: Start with the Ideal Gas Law equation: p = rho r t
Step 2: Rearrange the equation to isolate rho on one side: rho = p / (r t)
Step 3: Substitute the given values for p, r, and t into the equation: rho = p / (r t)

Therefore, the value of rho is equal to the pressure divided by the product of the gas constant and the temperature.

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The best way to describe sound levels is through a ratio scale.

The decibel scale, which measures sound levels, is best described as a ratio scale. While the decibel scale is logarithmic, it can be transformed into a linear ratio scale by using a reference point. By selecting a reference point as the softest sound the human ear can hear unaided (0 dB), we establish a meaningful zero point on the scale. Any sound level above this reference point can be expressed as a positive value, indicating its magnitude relative to the softest audible sound. The logarithmic nature of the decibel scale still holds, with each increase of 10 dB representing a tenfold increase in sound intensity. However, by anchoring the scale to a fixed reference point, we can now quantify and compare sound levels in a meaningful way, making it a ratio scale.

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Explanation:

Given that,

The frequency of microwaves, \(f=9\times 10^9\ Hz\)

The time period of the wave is :

\(t=\dfrac{1}{f}\\\\t=\dfrac{1}{9\times 10^9}\\\\t=1.1\times 10^{-10}\ s\)

Let \(\lambda\) is the wavelength of the wave. We know that,

\(v=f\lambda\\\\\lambda=\dfrac{v}{f}\)

Put all the values,

\(\lambda=\dfrac{3\times 10^8}{9\times 10^{9}}\\\\\lambda=0.03\ m\)

Hence, this is the required solution.

According to the information, we can infer that the correct sentence is: A mosquito flying with a velocity of 5 m/s (option C).

Momentum is a term that refers to a physical property of moving objects. Momentum is a measure of the amount of motion a moving object has and is related to the mass and velocity of the object.

Based on the above, we can infer that the correct option is correct because the fly would have more momentum than the other objects because its mass is less W

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The submarine is 26 m below the surface of fresh water. The density of sea water is 1.3 times the density of fresh water. The pressure due to fresh water at a depth of 26 m is 255660 Pa.

The pressure due to the sea water at a depth of 20 m can be calculated using the formula:

P = ρgh

where ρ is the density of the sea water, g is the acceleration due to gravity, and h is the depth of the submarine.

Assuming a density of sea water to be 1030 kg/m³ and g to be 9.81 m/s², we get:

P = 1030 x 9.81 x 20 = 202086 Pa

Now, to calculate the pressure due to fresh water at a depth of 26 m, we can use the same formula with the density of fresh water and the given depth:

P = ρgh

Assuming a density of fresh water to be 1000 kg/m³, and g to be 9.81 m/s², we get:

P = 1000 x 9.81 x 26 = 255660 Pa

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Answer:

is there a better picture

Answer: Kinetic energy is the energy an object has because of its motion

(if it needs to be a one worded answer than just type motion)

The potential energy of an object depends on its mass and its height.

The law of conservation of energy states that energy can be neither created nor destroyed, but it can change its form.

Answer:Kinetic energy is the energy an object has because of its motion. If we want to accelerate an object, then we must apply a force. Applying a force requires us to do work.

As expressed by the equation, potential energy depends upon the mass and the height of the object. Any increase in these two quantities will lead to an increase in the amount of potential energy possessed by the object.

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.

Hurricanes are powerful tropical cyclones that form over warm ocean waters. They are characterized by strong winds, heavy rainfall, and storm surges, and can cause significant damage and loss of life.

The increase in dead plant material in bodies of water due to hurricanes is likely to result in a higher nutrient content in the water, which can lead to increased algae growth and decreased oxygen levels. This can also have negative effects on the aquatic ecosystem and the organisms that rely on it. Additionally, the buildup of dead plant material can increase the risk of flooding and water pollution.

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The term that is defined as the entire set of surrounding parts of the world with which the user interacts is the user interface (UI).

The user interface encompasses all the elements and components that enable users to interact with a system, device, or application. It includes the visual, auditory, and tactile elements that facilitate communication and interaction between the user and the technology. The UI serves as the bridge between the user and the underlying system, allowing users to input commands, receive feedback, and access the functionality of the system.

The user interface can take various forms, including graphical user interfaces (GUIs), command-line interfaces (CLIs), voice-activated interfaces, touchscreens, and more. It involves the design and arrangement of buttons, menus, icons, text fields, and other interactive elements that enable users to navigate, input data, and perform tasks within the system.

The main purpose of a user interface is to create a user-friendly and intuitive environment that facilitates efficient and effective interaction. It should present information in a clear and organized manner, provide appropriate feedback to user actions, and ensure that users can easily access the desired features and functions of the system.

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(a) The budget constraint can be written as: C = wL + V, where C is consumption, w is the real wage, L is leisure, and V is non-labor market income.

(b) With ẞ = 1/2, V = 100, and w = 200, John's optimal supply of labor cannot be determined without information about his preferences for leisure and consumption. The utility function only represents his preferences, but we need additional information to determine the specific amount of labor he would choose to supply.

(c) John's total income is the sum of his labor income and non-labor market income: Total income = Labor income + Non-labor income = wL + V. Without knowing the specific value of L, we cannot calculate the total income.

(d) Similarly, without knowing John's preferences for leisure and consumption, we cannot determine the specific level of consumption he would choose.

(e) In the case where John is subject to a 10% income tax on labor income only, his new optimal supply of labor would depend on the tax rate's impact on his preferences and the trade-off between leisure and consumption. Without further information on his preferences and the specific tax structure, we cannot determine the new optimal supply of labor.

Additional information about John's preferences for leisure and consumption, as well as the specific tax structure, is necessary to calculate his optimal labor supply, total income, consumption, and the impact of the income tax on his labor supply.

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Based on the Second Law of Newton, a car traveling along a highway needs more amount of topping force exerted on it to stop when the car has less stopping distance, more momentum, and more mass (D).

Based on the Second Law of Newton, we know that the acceleration of an object is dependent to its resultant force and mass. The second law of Newton could be formulized as:

∑F = m.a

where:

F = the resultant force

m = the object's mass

a = the object acceleration

On the case, we know that a car is traveling along a highway. The car's stopping force will be dependent on the car's mass and its acceleration.

Let's dig deeper on acceleration part.

As we know, based on the linear motion concept, there are some equations to describe relationship between velocity, acceleration, distance, and time. Those equaations are:

v = u + at

s = ut + 1/2 at²

s = 1/2 (u+v)t

v² = u² + 2as

s = vt - 1/2 at²

where:

v = final velocity

u = tnitial velocity

a = acceleration

t = time

s = distance

If we subtitute one of acceleration equation to the second law of Newton, we will get:

F = m.a

v = u + at

a = (v-u)/t

F = m.(v-u)/t

F = mv - mu

           t

Based on the momentum concept, we know that momentum is the result of multiplication between an object's mass and velocity. Hence the sopping force is also affected by the momentum of an object.

If we subtitute another acceleration equation, we will find another equation:

F = m.a

s = ut +1/2at²

a = 2(ut-s)

         t²

F = m[2(ut-s)/t²]

This equation shows that the stopping force will also be affected by the distance of an object betweenn its initial position to its final position.

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The percentage change in any economic variable, including the Consumer Price Index (CPI), is typically measured using the following equation:

Percentage Change = ((New Value - Old Value) / Old Value) * 100

This equation calculates the difference between the new value and the old value, divided by the old value, and then multiplied by 100 to express it as a percentage.

To specifically calculate the percentage change in the CPI, you would substitute the respective values of the CPI for "New Value" and "Old Value" in the equation. This allows you to determine the percentage change in the CPI over a given period, indicating the inflation or deflation rate in the economy.

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The ring needs to be centered at the post on the force table in finding the equilibrant to ensure that the forces acting on the ring are balanced and cancel each other out.

In a force table experiment, the force table is a device used to study the principles of vector addition and equilibrium. The ring represents a resultant force, and the objective is to find the equilibrant, which is the force that can balance out the resultant force. By centering the ring at the post, the forces acting on the ring are distributed evenly in all directions, allowing for accurate measurement and calculation of the equilibrant.

To achieve equilibrium, it is essential to eliminate any net force on the ring. By placing the ring at the center of the post, the gravitational forces and tensions applied to the ring are symmetrically distributed, ensuring that the resultant force is balanced. This allows for precise determination of the equilibrant, which is crucial in understanding the principles of vector addition and equilibrium in physics.

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The ring needs to be centered at the post on the force table in finding the equilibrant because it ensures that the forces acting on the ring are balanced and cancel each other out, leading to equilibrium.

In order to find the equilibrant on a force table, it is important to center the ring at the post. This is because the equilibrant is a force that can bring a system into equilibrium. Equilibrium is a state in which the net force and net torque acting on an object are both zero. When the ring is centered at the post, it ensures that the forces acting on the ring are balanced and cancel each other out.

By centering the ring at the post, we can adjust the angles and magnitudes of the forces applied to the ring using strings with weights attached. This allows us to find the combination of forces that result in a net force of zero, indicating equilibrium. The equilibrant is the force that, when added to the system, balances out the other forces and brings the system into equilibrium.

Therefore, centering the ring at the post on the force table is crucial in finding the equilibrant because it allows us to accurately determine the combination of forces that will bring the system into equilibrium.

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Answer:

Around \(1.4\) solar mass.

Explanation:

In a white dwarf, electron degeneracy prevents the star from collapsing into itself. However, if the mass of the star exceeds the Chandrasekhar Limit, gravity would overcome electron degeneracy and star would collapse further.

The value of the Chandrasekhar Limit is approximately \(1.4\; M_{\odot}\) (\(1.4\) times the mass of the sun.) While this mass is the maximum possible mass of a stable white dwarf, the original mass of the star that formed this white dwarf tends to be much greater.

The speed of the waves passing the anchored boat can be calculated using the formula Speed = Wavelength / Period. With a wavelength of 5 meters and a period of 2 seconds, the speed of the waves is 2.5 meters per second.

The speed of the waves can be determined by the formula:

Speed = Wavelength / Period

Where wavelength is the distance between two consecutive wave crests, and period is the time it takes for two consecutive wave crests to pass a fixed point (in this case, the anchored boat).

We know that the wavelength of the waves is 5 meters. We also know that the period is 2 seconds. Therefore:

Speed = 5 meters / 2 seconds = 2.5 meters/second

So the speed of the waves is 2.5 meters per second.

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Answer:

I believe the answer is C

Explanation:

The mouse would run faster because it has mass.

Answer:

A

Explanation:

A-P-E-X

They would draw in more material due to their higher gravity.

Why did planetesimals expand much more quickly in the outer Solar System than they did in the inner Solar System? There were extra condensed materials in the outer Solar System that may be used to create planetesimals.

Planetesimals are large pieces that were formed when small particles clumped together.These then came together to create the planets. Most of the remaining planetesimals were thrown into the Sun or into far-off orbits around it by the gravity of the planets after they were formed.

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Answer:

Density will not change

Explanation:

Density =   mass / volume       when you increase the mass of water , you also increase the volume and the density will remain the same

The density of water of mass 10 kg is 1 g/cm³.

The measure of how close something is packed together is its density. Density is defined as the mass per unit volume.

Let X be the first water and Y be the second water.

We have the following data:

The Mass of X is 10 kg.

The Mass of Y is 1 kg.

The density of water Y is 1 g/cm³.

To determine the density of A;

The formula for volume is given as:

\(Volume=\frac{Mass}{Density}\)

\(Volume=\frac{1}{1}\)

Volume = 1 cm³

Therefore, the density of X will be:

\(Density=\frac{10}{1}\)

The density of X = 1 g/cm³

As a result, this amount of water weighs 10 kg and has a density of 1 g/cm³.

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The inoculation of the soil with the thermal AM fungi affects the decreased growth in the root and shoot of the D. Lanuginosum at high temperatures. But no effect will be done by the non-thermal fungi on the D. Lanuginosum at high temperatures.

Arbuscular mycorrhizal fungi (AMFs) mediate a complex series of communication events between plants and fungi to enable host plants to grow vigorously under stress conditions, resulting in an increased photosynthetic rate. Increased resilience to a variety of stresses, including drought, salinity, herbivory, temperature, metals, and fungal symbiont diseases, has been reported in numerous reports.

Nearly 90% of plant species, including flowering plants, mosses, and ferns, can form interdependencies with AMF.AMF forms vesicles, bascules, and hyphae in the roots and spores and hyphae in the rhizosphere. Formation of a mycelial network by AMF with plant roots significantly improves root access to large soil surfaces, resulting in improved plant growth.

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distance between A and B25002 m

V = 100 km/h

V = (100 x 1000)/3600 = 27.78 m/s when converted to a unit of speed.

t = 15 minutes = 15 x 60 = 900 seconds

displacement =?

Displacement times time equals velocity

Velocity times time equals displacement

displacement = 27.78 x 900

Displacement = 25002 meters

The distance between A and B is 25002 meters since displacement and distance are measured in the same unit.

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Answer:

A

Explanation:

Wavelength is represented by lambda

Answer:

t=1.87s

b. 9.74

Explanation:

First to find time set an equation for angular velocity:

\(w_{2}=w_{1}+\alpha t\\0=10.4-5.55t\\-10.4=-5.55t\\1.87=t\)

Now to find the angle:

\(x=x+wt+\frac{\alpha}{2} t^2\\x=10.4*1.87-\frac{5.55}{2} 1.87^2\\x=9.74\)

Given:

ratio of energy is 2√2 : √3

Apply:

Where:

q = charge of proton

v= speed of proton

r= radius of circular path

T= time period of revolution

Kinetic energy (K)

K= 1/2mv^2

From both equations:

Tα1/k

K1:K2 = 2√2 : √3

T1:T2 = √3:2√2

Answer: √3:2√2

Answer:

D a conclusion

Explanation:

The definition of hypothesis is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation

Answer:

The magnitude of the emf induced in the loop is 2.4 × 10⁻⁵ V

Explanation:

The magnitude of the induced emf of a loop moving relative to a wire is given as follows;

The given parameters are;

I = 50 A, a = 50 cm, and b = 6.0 cm

The constant rate of change of x, v = 20 cm/s

Motional emf formula

The magnetic field due to the straight wire, B = μ₀·i/(2·π·x)

The flux given by the rectangular loop, Ф = BA =  μ₀·i/(2·π·x) × a × b

Therefore, we get;

\(e = \dfrac{-d\phi}{dt} = \dfrac{-\mu_0 \cdot i \cdot a\cdot b}{2 \cdot \pi} \times \dfrac{d}{dt} \left (\dfrac{1}{x} \right ) = \dfrac{-\mu_0 \cdot i \cdot a\cdot b}{2 \cdot \pi} \times \left (\dfrac{1}{x^2} \right ) \dfrac{dx}{dt}\)

\(\because \dfrac{dx}{dt} = v\)

Therefore;

\(e = \dfrac{-\mu_0 \cdot i \cdot a\cdot b}{2 \cdot \pi} \times \left (\dfrac{1}{x^2} \right ) \dfrac{dx}{dt} = \dfrac{-\mu_0 \cdot i \cdot a\cdot b}{2 \cdot \pi} \times \left (\dfrac{1}{x^2} \right ) \times v \left(\because \dfrac{dx}{dt} = v \right)\)

μ₀ = 4·π × 10⁻⁷ H/m

We get;

\(e = \dfrac{4\cdot \pi \times 10^{-7} \, H/m\times50 \, A \times 0.5 \, m\times 0.06 \, m}{2 \cdot \pi} \times \left (\dfrac{1}{(0.05 \, m)^2} \right ) \times 0.2 \ m/s = 2.4 \times 10^{-5} \, V\)

The induced emf, e = 2.4 × 10⁻⁵ V