Two billiard balls roll towards each other. They each have a mass of 0.3 kg. ball 1 is moving at 1 m/s to the right while ball 2 is moving at 1 m/s to the left. Calculate the momentum of the system.

with explanation pls ​

The correct answer is option A. Water is not a state/ phase of matter

States are those phases that describe its physical attributes as well as how its constituent particles are arranged. Solid, liquid, gas, and plasma are the four main states of matter that can exist.

When something melts, it transitions from a solid to a liquid condition.

Water has a freezing point of 0°C.The melting point of flour is around 220 degrees Celsius, which is greater than that of salt and sugar. Sublimation is the process by which a solid transforms into a gaseous state, as in the case of camphor. Examples of changes in the states of matter include the melting of ice, the freezing of water, the burning of camphor, the melting of wax, and the production of precipitates.

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The shift in the physical description of the landlady can reveal a lot about her character and the tone of the story.

For example, if at first she is described as warm and welcoming, but then her appearance becomes more sinister or mysterious, it can create a sense of unease or foreboding for the reader. Alternatively, if the initial description is negative but then changes to be more positive, it can indicate a change in the character's attitude or actions towards the protagonist.

The physical description of the landlady is an important tool for establishing mood and character development in a story, and can greatly affect the reader's perception of the narrative.

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The net force's work is described as d=(3.82)(4.00)=15.3J for W=F net, where we made use of the fact that the canister began at rest and traveled horizontally while being affected by horizontal forces; the resulting effect is represented by the symbol F net.

Since all of these cases are in closed systems, the result is in a new preserved quantity.

Linear momentum and this new quantity, angular momentum, are comparable. In this chapter, we first define angular momentum and then examine it from a number of angles.

But first, we look into a single particle's angular momentum. This enables us to compute the force angular momentum of a rigid cylindrically symmetric body and a system of particles.

We used the fact that the canister started at rest and moved horizontally under the influence of horizontal forces; the ensuing effect is denoted by the symbol F (force) net.

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Answer:

Explanation:

sorry this is one side of the note

Force is push or pull....

thank you

Answer:

The answer is "1.0748 and 1.0875".

Explanation:

Please find the complete question in the attachment file.

The incidence angle is \(i=45^{\circ}\) for all colors When the angle is r, then use \(\frac{\sin{i}}{\sin{r}}=\frac{n_{o}}{n}\) . Snell's rule Where \(n_{o}\) is an outside material reflectance (same hue index) or n seems to be the crown glass index of the refraction, That index of inclination is \(90^{\circ}\) as the light in color shifted behaver from complete inner diffraction to diffraction.

Whenever the external channel has a thermal conductivity for the red light, that's also

\(n_{o}=\frac{n_{r}\sin{45^{\circ}}}{\sin{90^{\circ}}}=\frac{1.520\times\sin{45^{\circ}}}{\sin{90^{\circ}}}=1.0748\)

When outside the material has a refractive index, this happens with violet light.

\(n_{o}=\frac{n_{r}\sin{45^{\circ}}}{\sin{90^{\circ}}}=\frac{1.538\times\sin{45^{\circ}}}{\sin{90^{\circ}}}=1.0875\)

In point a, The only red light flows out from the leaned face and the residual colors are mirrored mostly on prism for the primary benefits \(n_{o}=1.0748\) (and slightly larger than that).

In point b, The only violet light is shown in the prism with the majority of the colors coming out from the sloping face for a scale similar to \(n_{o}= 1.0875\) (and slightly smaller than this).

Answer:

2 314.28571 kg / m

Explanation:

divide

and you see

The gravitational force between two bodies is directly proportional to the mass of the bodies and inversely proportional to the distance between them. This means that a body closer to the earth would experience more gravity than a body that is farther. Thus, the correct option is

close to earth

Answer:

there is no image to go off of. If you could share that I would be happy to help.

Explanation:

Please share the image!

-38.26dB is the intensity level of the sound for the more distant listener relative to that for the nearer listener

By using the inverse square law,

As one listener is 81.9 times farther away from the source of the sound than the other.

Then Increasing the distance by 81.9 times reduces the intensity by

\(81.9^{2}\) = 6707.61 times

The intensity level of the sound (in decibels) for the more distant listener relative to that for the nearer listener is:

= 10log(ratio of intensities)

= 10log(1/6707.61)

= 10log(0.000149)

=10 × -3.826

= -38.26dB (The negative sign represents the sound is less intense for the farther listener)

So, the intensity level of the sound (in decibels) for the more distant listener relative to that for the nearer listener is -38.26dB

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Answer:

magnetic induction

noun

1.

magnetic flux or flux density.

2.

the process by which an object or material is magnetized by an external magnetic field.

Magnetic induction is the process or concept of induced magnetism.

Detailed response:

A magnet is a magnetic field producing material, a magnetic field is a

force field that attracts ferromagnets and repels or attracts other magnetic

materials.

Induction is the process by which a thing or property is brought about.

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Answer:

\(2.8\; {\rm s}\).

Explanation:

The velocity of vehicle \(2\) relative to vehicle \(1\) is:

\(\begin{aligned}& \text{velocity of 2 relative to 1} \\ =\; & (\text{velocity of 2 relative to ground}) \\ &- (\text{velocity of 1 relative to ground}) \\ =\; & 33\; {\rm m\cdot s^{-1} - 28\; {\rm m\cdot s^{-1}} \\ =\; & 5\; {\rm m\cdot s^{-1}} && (\text{to the east})\end{aligned}\).

The displacement of vehicle \(2\) relative to vehicle \(1\) is currently \(0\; {\rm m}\). The rate at which this displacement increases is equal to the velocity of vehicle \(2\!\) relative to vehicle \(1\!\), which is \(5\; {\rm m\cdot s^{-1}}\).

Thus, it would take \((14 \; {\rm m}) / (5\; {\rm m\cdot s^{-1}}) = 2.8\; {\rm s}\) for this displacement to reach \(14\; {\rm m}\).

The planet that has a rotation period and rotational axis inclination most similar to Earth is Mars. Mars has a rotational period of approximately 24 hours and 37 minutes, which is only slightly longer than Earth's 24-hour day. Additionally, Mars has a rotational axis inclination of 25.19 degrees, which is similar to Earth's axial tilt of 23.5 degrees.

Like Earth, Mars has seasons that are determined by its axial tilt. These seasons are also affected by Mars' slightly elliptical orbit around the sun, which causes variations in temperature and atmospheric pressure. However, Mars has a much thinner atmosphere than Earth, which means that its climate is harsher and more extreme.

Overall, while Mars is not an exact twin of Earth, it does share some similarities in terms of its rotation period and axial tilt. These similarities make Mars an interesting target for future exploration and potential colonization.

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Answer:

The train's acceleration is 4.5 m/s²

Explanation:

The train's speed increased by 45 m/s after 10 seconds, which means that it's speed increased by 4.5 m/s each second, or rather 4.5m/s²

A. The kinetic energy of the satellite is \(K = \frac{G\times rho\frac{4\pi R_1^3}{3}\times m}{2R_2}\).

B. Gravitational potential energy of the satellite is \(U = -\frac{G\times rho \frac{4\pi R_1^3}{3}\times m}{R_2}\).

C. The ratio of the kinetic energy to the potential energy of the satellite is -1/2.

Part A) To find the kinetic energy (K) of the satellite, we first need to determine its velocity (v). The centripetal force acting on the satellite is given by the gravitational force. Therefore:

\(\frac{(m \times v^2)}{R_2} = \frac{G  M  m}{R_2^2}\)

where m is the mass of the satellite, G is the universal gravitational constant, and M is the mass of the planet.

To find M, we use the given density (rho) and volume of the planet (4/3 × pi × R₁³):

\(M = rho(4/3) \pi  R_1^3)\)

Now, solve for v:

\(v^2 = \frac{G M}{ R_2}\)

Next, find the kinetic energy (K) using the formula:

\(K = (1/2) m  v^2\)

\(K = \frac{GMm}{2R_2^2}\)

\(K = \frac{G\times rho\frac{4\pi R_1^3}{3}\times m}{2R_2}\)

Part B) To find the gravitational potential energy (U) of the satellite, use the formula:

\(U = -\frac{ GMm}{ R_2}\)

\(U = -\frac{G\times rho \frac{4\pi R_1^3}{3}\times m}{R_2}\)

Part C) To find the ratio of the kinetic energy (K) to the potential energy (U), divide K by U:

\((K / U) =\frac {(1/2) GMm/R_2} { (- G  M  m / R_2)}\)

Cancel out the mass (m) and simplify:

(K / U) = (1/2) / (-1) = -1/2
So the ratio of the kinetic energy to the potential energy is -1/2.

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The ball's acceleration shortly before it reaches the ground is zero in both magnitude and direction.

The ball's diameter, d, and the amount of time, t, it takes to cross the photogate can both be used to calculate the beginning horizontal velocity. Vo = d/t, then.

A missile moves independently in both the horizontal and vertical directions. Therefore, regardless of their horizontal velocities, two objects subject to gravity who descend from the same height will touch the earth simultaneously.

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Answer:

60m/s

Explanation:

Given parameters:

Acceleration  = 2m/s²

Time  = 30s

Unknown:

Change in velocity  = ?

Solution:

Acceleration is the rate of change of velocity with time.

Mathematically;

         Acceleration  = \(\frac{Change in velocity }{Time }\)

Now,

 Change in velocity  = Acceleration x time

So,

  input the parameters and solve;

 Change in velocity  = 2 x 30  = 60m/s

After watching the Ted Talk, there were still a few questions that I had about supermassive black holes. Firstly, I wanted to know more about the event horizon and what it exactly entails. Although the speaker briefly touched upon this subject, I would have appreciated a more in-depth explanation. Additionally, I would have liked to know more about the role of supermassive black holes in the universe.

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Electric and hydrogen are promising alternative energy sources for transportation, offering benefits such as reduced emissions and lower operating costs, although they also face challenges related to infrastructure and production methods.

Electric and hydrogen are two promising alternative energy sources for transportation that have gained significant attention in recent years. Here are some key points about each:

Electric Vehicles (EVs): EVs use electricity stored in batteries to power an electric motor.

They offer several advantages, including zero tailpipe emissions, reduced dependence on fossil fuels, and lower operating costs compared to traditional internal combustion engine vehicles.

The growth of EV infrastructure and advancements in battery technology have contributed to their increasing popularity.

Hydrogen Fuel Cell Vehicles (FCVs): FCVs use hydrogen gas to generate electricity through a chemical reaction in a fuel cell, which then powers an electric motor. FCVs produce zero tailpipe emissions since the only byproduct is water vapor.

Hydrogen fuel can be refueled quickly, similar to traditional gasoline vehicles, providing a longer driving range compared to battery-powered EVs.

Both electric and hydrogen vehicles have their own set of challenges. For EVs, limited charging infrastructure and range anxiety remain concerns, although they have been improving over time.

Hydrogen FCVs face challenges related to hydrogen production, storage, and distribution infrastructure.

Additionally, the overall environmental impact of these alternative energy sources depends on the methods used for electricity or hydrogen production.

The adoption of alternative energy sources for transportation is a complex and evolving field.

It often involves a combination of technological advancements, policy support, and infrastructure development to enable widespread adoption and address existing challenges.

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Answer:

Very low

Explanation:

It is fair to say to a reasonable extent that there are very low chances that radio transmissions from Earth or messages sent on distant space probes will ever be received by living beings .

Bear in mind that for years some scientists have believed without any substantial evidence that there are other living beings in distant space.

Answer:

The cat went up

Explanation:

The temperature of sweat when it is first produced is two degree more than normal temperature of the body because sweat removes extra heat from the body.

Our body begins to sweat when our body temperature goes up more than two degrees from normal which is 102 degree F. When you sweat, your body temperature drops back to the safe range which is 96.6 to 100.6 degrees F.

So we can conclude that The temperature of sweat when it is first produced is two degree more than normal temperature of the body because sweat removes extra heat from the body.

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Answer:

To answer your question use the code ICE on here to get your answer works every time for me hope this helps

Answer:

The net force is zero because both volleyball players are hitting the ball with same force.

Explanation:

LeBron James has been swept in the NBA Finals two times. Once in 2007 when he was playing for the Cleveland Cavaliers and again in 2018 when he was playing for the Cleveland Cavaliers.

Cutoff in September 2021, LeBron James has been swept in the NBA Finals twice in his career. The first time was in 2007 when he was playing for the Cleveland Cavaliers, and they were swept by the San Antonio Spurs. The second time was in 2018 when he was playing for the Cavaliers again, and they were swept by the Golden State Warriors. It's important to note that this information is accurate up until 2021, and any additional games or series after that would not be included.

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Answer in N-units. With their centers of mass 3.3 m apart vertically, a light, inextensible cable initially travels over a light, friction pulley with such a radius of 13 cm. .

The gravitational acceleration is 9.8 m/s 2. How quickly do the two masses accelerate when they pass one another?

At 1.2 m/s2, an elevator increases in speed.

Gravity accelerates at a rate of 9.8 m/s2.

What is the forward force that the elevator floor applies to a passenger weighing 86 kg

Answer in N-units.

when there is an upward acceleration in the elevator?

Take into account the usual force the elevator would exert on you: N = mg while the elevator is stationary or travelling at a constant speed. If the elevator is moving upward, N = mg + ma. If the elevator is accelerating downward, N = mg - ma.

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