At what time was the car’s position 25.0 m east of the origin?

The momentum of x 8.731 kgms⁻¹ i and y is 11.5 kgms⁻¹ components of momentum.

Momentum is the product of the mass and pace of an item. it's miles a vector quantity, owning importance and a path. Momentum may be the notion of as the "energy" when a frame is moving, which means how a whole lot pressure it can have on any other frame.

A pressure acting for a given quantity of time will change an item's momentum. positioned some other way, an unbalanced force constantly hastens an object - either speeding it up or slowing it down. If the force acts opposite the item's movement, it slows the item down.

Calculation:-

Momentum = mass × velocity

                   = 2.92 × (2.99 i)

                   = 8.731 kgms⁻¹ i

Momentum = mass × velocity

                   = 2.92 × (3.94 j)

                   = 11.5 kgms⁻¹

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Answer:  If there are no air resistance the hailstones would hit the earth at velocities near 350 m/s and melt before they hit the ground.

Explanation: Hope This Helps

The equivalent resistance of the three-resistor series network would be 100 ω.

The equivalent resistance of a three resistor series network composed of resistances 20 ω, 30 ω and 50 ω can be determined by adding the individual resistances together.

In this case, the equivalent resistance of the three resistor series network is 100 ω, as 20 ω + 30 ω + 50 ω = 100 ω.

When resistors are connected in series, the total resistance of the circuit is equal to the sum of the individual resistances.

This is because current passing through the circuit must pass through each resistor in series, thus reducing the overall resistance of the circuit.

As such, the equivalent resistance of the three resistor series network is 100 ω.

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The bicycle will experience more force.

Force is the intensity by which an object is pushed or pulled.

Let the mass of the pedestrian = M kg

Let the mass of bicycle = m kg

Also M > m

The more the mass the more will be the force exerted on the opposite object.

Therefore the bicycle will experience more force when both of them collided in the street.

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\(\huge{ \mathfrak{ \underline{ Answer \: \: ✓ }}}\)

Which of the following is not an example of an abiotic component of an ecosystem :

A . water

B . minerals

C . sunlight

D . bacteria ✓

E . air

Bacteria is a single celled living organism.

\( \#TeeNForeveR\)

D. bacteria is not an example of an abiotic component of an ecosystem.

An ecosystem is a community of living organisms (biotic) interacting with each other and with their non-living (abiotic) environment in a specific area. It encompasses all the living and non-living components of a particular environment and the complex interactions among them.

Here,
Abiotic components are the non-living factors that influence the distribution and abundance of living organisms in an ecosystem. Examples of abiotic components include water, minerals, sunlight, air, and temperature. Bacteria, on the other hand, are living organisms and are considered as biotic components of an ecosystem.

Thus, D. bacteria is not an example of an abiotic component of an ecosystem.

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Answer:

Horizontal = 19.99212 m/s     Vertical = 15.0151 m/s

Explanation:

Horizontal = Cos(36.9) x 25

Vertical = Sin(36.9) x 25

Answer:

Magnitude = 8.6

Angle = 324.5 degree from + X axis in counter clock  wise direction.

Explanation:

X component of B, Bx = 7

Y component of B, By = - 5

The magnitude of the resultant is  

\(B =\sqrt{7^{2}+(-5)^2}\\\\B =\sqrt{49+ 25}\\\\B = 8.6\)

The angle is given by

\(tan\theta=\frac{By}{Bx}\\\\tan\theta = \frac {-5}{7}\\\\\theta = 324.5^{o}\)

Answer:

The force acting in x direction is 34.44 N

Explanation:

We have,

Force acting on the box is 65 N at an angle of 58 degrees to the horizontal the surface of frictional.

It is required to find the net force in x- direction.

The net force acting in the x- direction is given by :

\(F_x=F\cos\theta\\\\F_x=65\times \cos(58)\\\\F_x=34.44\ N\)

So, the force acting in x direction is 34.44 N.

Astronomers can study how clusters of stars and gas move around the galactic center in nearby galaxies and use those movements to calculate the mass of the central black hole.

By monitoring the star motions in the galaxy's center, Webb will calculate the black hole's mass. Astronomers will calculate the mass of that black hole using NASA's James Webb Space Telescope. The outcome may appear to be unimportant, but a black hole's mass controls how it feeds and interacts with its surroundings.

Black holes are discovered when nearby material, such as gas, is pulled by gravity into a disk around the black hole. The gas molecules in the disk of the black hole are spinning so quickly that they heat up and release X-rays. From Earth, one can observe these X-rays.

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Total Cost is =  $107,380 if The farm is 340 acres and had corn planted  add fertilizer to the soil before you plant this years' crop.

A fertiliser is a natural or artificial substance containing chemical elements (such as Nitrogen (N), Phosphorus (P) and Potassium (K)) that improve growth and productiveness of plants. Some synonyms include the terms "enrichment" or "plant nutrient".

Without fertilizers, nature struggles to replenish the nutrients in the soil. When crops are harvested, important nutrients are removed from the soil, because they follow the crop and end up at the dinner table. If the soil is not replenished with nutrients through fertilizing, crop yields will deteriorate over time.

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when you get the answer please tell me

Answer:

what does it mean for a plate to subduct?

Explanation:

Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle.

Answer:

the moment of inertia with the arms extended is Io and when the arms are lowered the moment

I₀/I > 1    ⇒   w > w₀

Explanation:

The angular momentum is conserved if the external torques in the system are zero, this is achieved because the friction with the ice is very small,

           L₀ = L_f

           I₀ w₀ = I w

          w =\(\frac{I_o}{I}\) w₀

where we see that the angular velocity changes according to the relation of the angular moments, if we approximate the body as a cylinder with two point charges, weight of the arms

          I₀ = I_cylinder + 2 m r²

where r is the distance from the center of mass of the arms to the axis of rotation, the moment of inertia of the cylinder does not change, therefore changing the distance of the arms changes the moment of inertia.

If we say that the moment of inertia with the arms extended is Io and when the arms are lowered the moment will be

        I <I₀

        I₀/I > 1    ⇒   w > w₀

therefore the angular velocity (rotations) must increase

in this way the skater can adjust his spin speed to the musician.

In order to analyze the experiment, we need to locate the data and observations in the lab guide, identify key results, and summarize the data to effectively convey our findings.

To locate the data and observations collected in your lab guide and summarize the key results, you can follow these steps:

1. Refer to your lab guide: Review the sections or instructions in your lab guide where you recorded the data and observations during the experiment.

2. Identify the key results: Look for the specific data points or measurements that are relevant to your experiment and research question. These could include numerical values, measurements, observations, or any other recorded information.

3. Organize the data: Arrange the data in a logical manner, such as in tables, graphs, or bullet points, depending on the format provided in your lab guide or the most appropriate way to present the information. Ensure that the data is clearly labeled and properly formatted for easy understanding.

4. Summarize the findings: Analyze the data and observations to identify the main patterns, trends, or conclusions that can be drawn from them. Consider any significant relationships, differences, or notable observations that are relevant to your research question or objective.

5. Present a summary: Write a concise summary that captures the key findings and observations from the data. Use clear and precise language to convey the main results and their implications. It is important to relate your findings back to your research question or objective to provide context and significance.

6. Use appropriate visuals: If applicable, include any tables, graphs, or charts that visually represent the data and support your summary. Visual aids can enhance the understanding and clarity of your findings.

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A rational function attains a horizontal asymptote when the degree of the numerator is less than or equal to the degree of the denominator.

Let's consider a rational function f(x) with numerator N(x) and denominator D(x). If the degree of N(x) is less than the degree of D(x), then the horizontal asymptote is y = 0. This is because as x approaches infinity or negative infinity, the higher degree terms in the denominator will dominate, causing the function to approach zero. If the degree of N(x) is equal to the degree of D(x), then the horizontal asymptote is determined by the ratio of the leading coefficients of the numerator and denominator. Let's say the leading coefficient of N(x) is a and the leading coefficient of D(x) is b. In this case, the horizontal asymptote is y = a/b. As x approaches infinity or negative infinity, the ratio of the leading coefficients determines the value that the function approaches. A rational function attains a vertical asymptote when the denominator becomes zero at certain values of x. To determine the vertical asymptote, we find the values of x that make the denominator zero and take the limit of the function as x approaches those values. If there is a factor (x - c) in the denominator, where c is a constant, then x = c is a vertical asymptote. As x approaches the value c, the function approaches positive or negative infinity, depending on the signs of the coefficients of the terms in the numerator.

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Answer:

no

Explanation:

ans should be correct

The picture and the pre-image are consistent ONLY when the scale factor is 1.

A sort of transformation known as a dilatation enlarges or shrinks a figure (referred to as the preimage) to produce a new figure (called the image). How much larger or smaller the dilation image will be in comparison to the preimage depends on the scale factor, r.

The scale factor and the center of dilation are used to determine the dilation transformation. The image stretches if the scaling factor is greater than 1.

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A system which undergoes an adiabatic change. The work done and the change in the internal energy are: W>0,  AE > 0 (option d)

Adiabatic process is a thermodynamic process in which no heat goes into or out of a system and all internal energy is changed by work.

Adiabatic operations are frequently carried out in an insulated container, where the process occurs too quickly for heat to be transferred. Because heat transfers due to a temperature difference between a system and its surroundings, an adiabatic process can occur even when the system is in thermal equilibrium.

The first law of thermodynamics is:

ΔU = Q + W

Where:

ΔU = change in internal energy

Q = heat transfer

W = work done

In the given problem, the internal energy is represented by AE, hence, we can write:

AE = Q + W

Since there is no change in heat energy, Q = 0, therefore,

AE = W

The work done in an adiabatic process is positive. Therefore, the correct answer is W>0,  AE > 0 (option d)

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Answer:

Horizontal component = 60.05 m/s

vertical component = 22.96 m/s

Explanation:

cosine(angle) = adjacent / hypotenuse or  horizontal / angled velocity

angled velocity * cosine (angle) = horizontal velocity

65 m/s * cosine(22.5) = 60.05 m/s

sine(angle) = adjacent/ hypotenuse or vertical/ angled velocity

angled velocity * sine (angle) = vertical velocity

65m/s sine(22.5) = 22.96 m/s

If a meteor has a pb-206:u-238 mass ratio of 0.855:1.00, the age of the meteor is approximately 668 million years.

The age of a meteor can be determined using the radioactive decay of isotopes present in the meteor. In this case, the ratio of Pb-206 to U-238 is used. Uranium-238 decays into lead-206 with a half-life of 4.47 billion years.

Assuming that the meteor did not contain any Pb-206 at the time of its formation, the Pb-206 that is present must have been produced from the decay of U-238. The ratio of Pb-206 to U-238 can be used to determine how many half-lives have occurred since the meteor formed.

The mass ratio of Pb-206 to U-238 is 0.855:1.00. This means that for every 1.00 unit of U-238, there is 0.855 units of Pb-206. Using the half-life of U-238, we can determine that the number of half-lives that have occurred is:

ln(0.855)/ln(0.5) = 0.1495 half-lives

Since each half-life is 4.47 billion years, the age of the meteor is:

0.1495 x 4.47 billion years = 668 million years

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Answer:

Geothermal energy can be trapped using geothermal plants that utilizes steam escaping from the earth surface to make electricity.

The limitations include :

Explanation:

Geothermal energy originates in form of heat/steam escaping from the inner parts of the earth surface. The steam trapped is converted to electricity through turbines. The hot water pumped by heat pumps can be used to heat homes or for heating purposes in industries.

The limitations of geothermal energy are high initial capital costs for installing the systems, depletion of geothermal sites after sometime, environmental concerns due to greenhouse gases emissions and land requirements for geothermal projects.

Answer:

Earth's atmosphere is made up of a combination of gases. The major components of nitrogen, oxygen, and argon remain constant over time and space, while trace components like CO 2 and water vapor vary considerably over both space and time.

Explanation:

it is C

Answer:

c

Explanation:   O n O

The angular momentum immediately before and after the collision is equal. The rotational kinetic energy before the collision is greater than the rotational kinetic energy after the collision.

When a body is rotating in a plane about a center, the energy possessed by the body is known as rotational kinetic energy.

Angular momentum is the momentum of a body having circular motion.

According to the law of conservation of angular momentum, the momentum remains conserved before and after the collision.

In the given sphere rod system, after the sphere (m0) sticks to the rod(2m0), the mass increases to 3m0 due to which the moment of inertia is increased but the speed is decreased.

Rotational Kinetic Energy =\(\frac{1}{2}\)Iω²

Thus, the angular momentum immediately before and after the collision is equal. The rotational kinetic energy before the collision is greater than the rotational kinetic energy after the collision.

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Answer:

final velocity in km/h= 67.2km/h

Explanation:

Data

initial velocity (u)= 24km/h

from 36km/h = 10m/s

then 24km/h= u

hence,

\(u= \frac{24}{36} \times 10\)

u= 20/3 m/s

Time= 6s

Acceleration= 2m/s²

\(v = u + at\)

\(v = \frac{20}{3} + 2(6)\)

\(v = \frac{20}{3} + 12\)

\(v = \frac{56}{3} \)

final velocity = 56/3 m/s

From 10m/s=36km/h

56/3 m/s = V

V(km/h)=

\( \frac{56}{3} \times \frac{36}{10} \)

V(km/h)=67.2km/h

Answer D

Explanation I did the quiz

Answer:

i think its b

Explanation:

its been awhile since I've worked on Newton's first law

Answer:

E=mc△T

E=0.012(4200)(99-98)

E=50.4J

50.4 joules of heat is used

After considering the given data we conclude that the wavelength of visible light emitted by a hydrogen atom when its excited electron drops from n = 6 to n = 2 is approximately 102.55 nm.

To evaluate the wavelength (in nm) of visible light emitted by a hydrogen atom when its excited electron drops from n = 6 to n = 2, we can apply the Rydberg formula:
\(1/\lambda = R(1/n_1^{2} - 1/n_2^{2} )\)
Here:
λ = wavelength of the emitted light
R = Rydberg constant \((1.097 *10^7 m^{-1} )\)
\(n_1\) and \(n_2\) = initial and final energy levels of the electron
Applying substitution of the given values, we get:
\(1/lambda = (1.097 * 10^7 m^{-1} )(1/6^{2} - 1/2^{2} )\)
Evaluating for λ, we get:
λ = 102.55 nm
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Center of mass of the system is,  \(X_{cm}\) = 0.036 m \(Y_{cm}\) = -0.0642 m

The quantity of stuff or material which makes up an item is known as its mass. The unit of measurement is the kilogram, abbreviated as kg. It's crucial to keep in mind that mass differs from weight. While weight varies with changes in gravity, mass never changes.

The amount much matter that makes up every item or body is the greatest way to understand mass. Everything that we can see has mass. Examples of objects with mass include a table, a seat, a bed, a ball, a glass, or even air. The mass of a thing determines whether it is light or heavy.

Mass of the ring = M = 1 kg

Radius of the ring = R = 1 m

Mass of the first bead = m1 = 1 kg

Mass of the second bead = m2 = 1 kg

Mass of the third bead = m3 = 1 kg

Mass of the fourth bead = m4 = 1 kg

Angle between the first bead and the horizontal = A = 49°

Angle between the second bead and the horizontal = B = 50°

Angle between the third bead and the horizontal = C = 70°

Angle between the fourth bead and the horizontal = D = 39°

Position of the first bead = (X1 , Y1)

X1 = RCosA = 1Cos(49) = 0.656 m

Y1 = RSinA = 1Sin(49) = 0.755 m

Position of the second bead = (X2 , Y2)

X2 = RCosB = 1Cos(50) = 0.643 m

Y2 = -RSinB = -1Sin(50) = -0.766 m

Position of the third bead = (X3 , Y3)

X3 = -RCosC = -1Cos(70) = -0.342 m

Y3 = -RSinC = -1Sin(70) = -0.939 m

Position of the fourth bead = (X4 , Y4)

X4 = -RCosD = -1Cos(39) = -0.777 m

Y4 = RSinD = 1Sin(39) = 0.629 m

Center of mass of the ring = (X5 , Y5) = (0 , 0)

Center of the mass of the system = (Xcm , Ycm)

\(X_{c m}=\frac{m_1 X_1+m_2 X_2+m_3 X_3+m_4 X_4+M X_5}{m_1+m_2+m_3+m_4+M}\)

\(X_{c m}=\frac{(1)(0.656)+(1)(0.643)+(1)(-0.342)+(1)(-0.777)+(1)(0)}{1+1+1+1+1}\)

\(X_{cm}\) = 0.036 m

\(\begin{aligned}& Y_{c m}=\frac{m_1 Y_1+m_2 Y_2+m_3 Y_3+m_4 Y_4+M Y_5}{m_1+m_2+m_3+m_4+M} \\& Y_{c m}=\frac{(1)(0.755)+(1)(-0.766)+(1)(-0.939)+(1)(0.629)+(1)(0)}{1+1+1+1+1}\end{aligned}\)

\(Y_{cm}\) =  -0.0642 m

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