Claim how it would be possible to predict the speed that a 2000 kg car full with riders will reach before it’s ever placed on the track. Cite evidence by using the appropriate formulas and reasoning by solving them in order to calculate the speed of the car at the bottom of the first hill

It states that: "At constant volume the pressure of a gas sample is directly proportional to the absolute temperature."

This means that doubling the pressure of the gas will cause its absolute temperature to double.

Mathematically this law is expressed as:

       \(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{\dfrac{P_{1}}{T_{1}}=\frac{P_{2}}{T_2} \iff \ P_1T_2=P_2T1 } \end{gathered}$} }\)

We have that the data is:

P₁ = 0.87 atm

T₁ = 25 °C + 273 = 298 K

T₂ = 50 °C + 273 = 323 K

P₂ = ?

We clear for the final pressure:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{P_{2}=\frac{P_1T_2}{T_{1}} } \end{gathered}$}}\)

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{P_{2}=\frac{(0.87 \ atm)\cdot(323\not{k})}{298\not{k}} } \end{gathered}$}}\)

\(\boxed{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{P_{2}=0.94 \ atm } \end{gathered}$}}}\)

Answer:B

Explanation:

The common speed of the car and minivan after impact on the frictionless ice is 6 m/s.

When the car and minivan collide, the principle of conservation of momentum can be applied to determine their common speed after impact. According to this principle, the total momentum before the collision is equal to the total momentum after the collision, assuming there are no external forces acting on the system.

The momentum (p) of an object is given by the product of its mass (m) and velocity (v): p = m * v.

Initially, the car has a mass of 1,500 kg and a velocity of 15 m/s, while the minivan has a mass of 2,500 kg and is stationary (0 m/s). After the collision, the two vehicles lock together and move with a common velocity (v').

Applying the conservation of momentum equation:

Initial momentum of the car = Final momentum of the car and minivan

(1,500 kg * 15 m/s) = (1,500 kg + 2,500 kg) * v'

Simplifying the equation:

22,500 kg⋅m/s = 4,000 kg * v'

Dividing both sides by 4,000 kg:

v' = 22,500 kg⋅m/s / 4,000 kg

v' = 5.625 m/s

Therefore, the common speed of the car and minivan after impact is 5.625 m/s, which can be rounded to 6 m/s.

Learn more about frictionless

brainly.com/question/33439185

Tag: #SPJ11

Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.

The velocity for the entire trip is 0.4 m/s as It takes her 500 seconds to make the round trip and 60 kg • m/s2 = (45 kg • v) + (20 kg • 3 m/s).

Path 1 = 400 m В B. A Path 2 = 200 m Path 3 = 300 m. Thus, option C is correct.

A particle's settling velocity known as the rate at which is travels through a still fluid. The specific gravity of the particles, their size, and their shape all have an impact on settling velocity.

A particle in still air will gravitationally settle and reach its terminal velocity fairly quickly. A particle's terminal velocity in a still fluid is referred to as the settling velocity (also known as the "sedimentation velocity").

Understanding variations in the hydraulic regime and interactions between sediment and fluid in the surf zone depends heavily on the particle settling velocity at the foreshore region. In contrast to sedimentation, which is the end product of the settling process, settling is the movement of suspended particles through the liquid.

Therefore, Thus, option C is correct.

Learn more about velocity on:

https://brainly.com/question/19979064

#SPJ2

To calculate the final thermal energy of gas A and gas B, we need to use the equation q = nCΔT, where q represents the thermal energy, n is the number of moles, C is the molar specific heat capacity, and ΔT is the change in temperature. By substituting the given values into the equation, we can determine the final thermal energy of both gases.

However, the initial temperatures of gas A and gas B are not provided, so we cannot directly compare their initial temperatures. The thermal energy alone cannot determine the temperature, as it depends on factors such as the number of moles and the specific heat capacity of the gas. Therefore, we would need additional information to compare the initial temperatures of gas A and gas B.

To further understand the concept of molar specific heat capacity and its relationship to thermal energy, it is important to study the properties of gases and their behavior when subjected to thermal changes. This knowledge can help in understanding how energy is transferred and how temperature changes affect the thermal energy of a gas.

Learn more about molar specific heat capacity

brainly.com/question/28302906

#SPJ11

Answer:

It is going through a phase change when it is flat.

Explanation:

During the horizontal line segments, there is no change in temperature, so kinetic energy remains constant. However, all the energy that is absorbed or released is related to changes in potential energy.

When astronomers talk about the seeing conditions at a potential observatory site, they are referring to the atmospheric turbulence and how it affects the quality of images obtained from telescopes at that location.The seeing conditions can have a significant impact on the image quality as well as the scientific output of an observatory.

Turbulent air creates a blurring effect on the images which is known as atmospheric distortion. This limits the telescope’s ability to resolve fine details in the observed objects.The quality of the seeing conditions at a potential observatory site depends on various factors such as the altitude, climate, and topography.

Astronomers evaluate the seeing conditions by monitoring the atmospheric turbulence at the site. They use a device called a seeing monitor that measures the fluctuations in the air density and temperature.The seeing conditions are critical for the success of an observatory.

Astronomers prefer sites with stable atmospheric conditions, low turbulence, and dry climate. These conditions help to minimize the effects of atmospheric distortion on the images and enable astronomers to study celestial objects in greater detail.

To know more about observatory refer here:

https://brainly.com/question/28274193#

#SPJ11

Explanation:

The acceleration of the scooter is 2.5 m/s

Answer:

Electric Field intensity is zero.

The reason for that is:

All charges are placed at equal distances from the center of the square and have same magnitude and sign. This means they will exert equal and opposite forces on the test charge at the center. Net force will become Zero.

The intermolecular forces present in water include hydrogen bonding and dipole-dipole interactions.

Water is a polar molecule, meaning it has a positive and a negative end due to an uneven distribution of electron density. This polarity gives rise to intermolecular forces that hold water molecules together.

One of the intermolecular forces present in water is hydrogen bonding. Hydrogen bonding occurs when a hydrogen atom, which is covalently bonded to an electronegative atom (in this case, oxygen), is attracted to another electronegative atom (such as oxygen or nitrogen) in a different molecule. In water, the oxygen atom of one water molecule forms a hydrogen bond with a hydrogen atom of a neighboring water molecule. Hydrogen bonding is a strong intermolecular force and contributes to many of the unique properties of water, such as its high boiling point and surface tension.

In addition to hydrogen bonding, water also exhibits dipole-dipole interactions. Dipole-dipole interactions occur between the positive end of one polar molecule and the negative end of another polar molecule. In water, the positive hydrogen end of one water molecule is attracted to the negative oxygen end of a neighboring water molecule. These dipole-dipole interactions are weaker than hydrogen bonds but still contribute to the overall intermolecular forces present in water.

Other intermolecular forces, such as ion-dipole interactions and London dispersion forces, are not as significant in water compared to hydrogen bonding and dipole-dipole interactions. Ion-dipole interactions occur between an ion and the charged end of a polar molecule, while London dispersion forces arise from temporary fluctuations in electron distribution. While these forces may exist in other substances, they play a relatively minor role in the intermolecular forces of water.

In conclusion, the intermolecular forces present in water are primarily hydrogen bonding and dipole-dipole interactions. These forces contribute to the unique properties and behavior of water as a liquid.

For more such questions on intermolecular forces, click on:

https://brainly.com/question/2193457

#SPJ11

Answer:heart

The hardest working muscle is the heart. It pumps out 2 ounces (71 grams) of blood at every heartbeat. Daily the heart pumps at least 2,500 gallons (9,450 liters) of blood. The heart has the ability to beat over 3 billion times in a person's life.

Explanation:hope this helps

Answer:

If the newly formed metamorphic rock continues to heat, it can eventually melt and become molten (magma). When the molten rock cools it forms an igneous rock.

Explanation:

Answer:

latent heat, also called the heat of vaporization

Answer:

C

Explanation:

the reason the new solution becomes hot is because an exothermic reaction is taking place. This is a kind of chemical change.

Answer:

yes

Explanation:

Answer: Your question is missing below is the question

Question : What is the no-friction needed speed (in m/s ) for these turns?

answer:

20.1 m/s

Explanation:

2.5 mile track

number of turns = 4

length of each turn = 0.25 mile

banked at 9 12'

Determine the no-friction needed speed

First step : calculate the value of R

2πR / 4 =  πR / 2

note : πR / 2 = 0.25 mile

∴ R = ( 0.25 * 2 ) / π

      = 0.159 mile ≈ 256 m

Finally no-friction needed speed

tan θ = v^2 / gR

∴ v^2 = gR * tan θ

 v = √9.81 * 256 * tan(9.2°)  = 20.1 m/s

The weight of the transformer is 138.46 N.

Weight can be calculated by dividing workdone by height

To calculate the weight of the transformer, we use the formula below.

Formula:

Where:

Substitute these values into equation 1

Learn more about weight here: https://brainly.com/question/28704035

#SPJ1

Answer:

cannot

Explanation:

because convection occurs to difference in densities between particles and there is a movement of particles during convection ( gases and liquids ) , in solids , atoms are very tightly packed and cannot move

Answer:because each individual works best at a different time of day. D. because scheduling prevents everyone from studying at a set time. emilleexo818 is waiting for your help.

Explanation:

Answer:

The correct and overall question would be: Because each individual works best at a different time of day

Explanation:

(I'm smart and I took the quiz, I hope this helped guys! :)

According to the solving The magnitudes of the n and t components of the acceleration of point A at the instant t = 2 s are 744.2 m/s2 and 4.2 m/s2, respectively.

Given information: Angular acceleration,

α = 21 rad/initial angular velocity, ω₀ = 19 rad/s

Time, t = 2 seconds

Radius of the disk, r = 0.2 meters

The angular acceleration is  = d/dt.

The initial angular velocity of the disk, 0 = 19 rad/s, is given.

The angular velocity of the disk after a time t can be determined using the formula,

ω = ω₀ + αt

Where ω is the angular velocity of the disk after a time t.

Substituting the given values of ω₀, α, and t, we get

ω = 19 + 21 × 2

= 61 rad/s

The linear velocity of any point on the disk, v is given by,

v = r × ω Where r is the radius of the disk.

Substituting the given values of r and ω, we get

v = 0.2 × 61

= 12.2 m/s

Therefore, the magnitude of the velocity of point A at the instant t = 2 s is 12.2 m/s.

The tangential acceleration, is given by,

at = r, where r is the radius of the disk.

Substituting the given values of r and α, we get,

at = 0.2 × 21

= 4.2 m/s²

The normal acceleration, and is given by,

an = rω²

where r is the radius of the disk.

Substituting the given values of r and ω, we get, an

= 0.2 × 61²

= 744.2 m/s²

The magnitudes of the n and t components of the acceleration of point A at the instant t = 2 s are 744.2 m/s2 and 4.2 m/s2, respectively.

To know more about acceleration visit :

https://brainly.com/question/12550364

#SPJ11

The strength of the magnetic force is inversely proportional to the square of distance between the magnets. Thus, as the distance increases, force between the magnets decreases.

Magnetic force, is the force generated by magnetic flux lines arised from a magnetic field.  A magnet have a south pole and north pole. There will be repulsive force between two like poles and attractive force between two unlike pole.

The force between two objects is always in inverse proportion with the distance and this is well explained by Coulomb's law of forces.

Thus, F ∝ 1/r² where, r is the distance.

Therefore, as the distance between two magnets increases the magnetic force between them decreases.

To find more on magnetic force, refer here:

https://brainly.com/question/3160109

#SPJ1

statement, studies consistently show that conversing on a cell phone while driving is more distracting and risky compared to having a conversation with someone in the car.

Numerous studies and research have consistently demonstrated that talking on a cell phone while driving is significantly more distracting and dangerous than conversing with a passenger in the car. The primary reason for this is the cognitive distraction caused by cell phone conversations, particularly when using handheld devices.

Engaging in a conversation on a cell phone requires a higher cognitive load as drivers need to mentally visualize and focus on the conversation while simultaneously processing visual and auditory cues from the driving environment.

Conversely, conversing with a passenger in the car is considered less distracting due to the presence of shared situational awareness. Passengers can actively participate in the driving situation, provide nonverbal cues, adjust their conversation based on traffic conditions, and assist with potential hazards.

These factors contribute to a more integrated and less cognitively demanding interaction, making it less likely to impair driving performance compared to cell phone conversations. Overall, the consensus among scientific studies supports the notion that talking on a cell phone while driving is more distracting than conversing with a passenger in the car.

It is essential for drivers to prioritize safety by minimizing distractions and adhering to laws and guidelines regarding cell phone usage while operating a vehicle.

Learn more about driving here:

https://brainly.com/question/14317930

#SPJ11

Answer:

1) Mercury

2) Venus

3) Earth

4) Mars

Explanation:

Answer:

The for inner/terrestrial planets are Mercury, Venus, Earth and Mars

Explanation:

                            ~Notify me if you have questions~

                           Have a nice day and I hope it helps!

                                                       ^ω^

-- XxFTSxX

Hello!

a = 3 m/s²

Use the equation F = m · a (Newton's Second Law) to solve.

We are given the force and mass, so plug these values into the equation:

60 = 20 · a

60 = 20a

Divide both sides by 20:

60/20 = 20a/20

a = 3 m/s²

If a ball is given a push so that it has an initial velocity of 2 m/s down a certain inclined plane, then the distance it has rolled after t seconds is s = 2t + t². Then it takes 11 seconds for the velocity to reach 24 m/s. The correct option is D.

To find the time it takes for the velocity of the ball to reach 24 m/s, we need to solve for the time when the velocity function equals 24 m/s.

The velocity function is the derivative of the distance function, so we'll first find the derivative of the distance function s = 2t + t² with respect to time t:

ds/dt = d/dt(2t + t²)

ds/dt = 2 + 2t

Now we can set the velocity function equal to 24 m/s and solve for t:

2 + 2t = 24

Subtracting 2 from both sides:

2t = 22

Dividing both sides by 2:

t = 11

Therefore, it takes 11 seconds for the velocity to reach 24 m/s.

The correct answer is (d) 11 seconds.

To learn more about escape velocity click:

brainly.com/question/29596174

#SPJ4

The net force that accelerates the baseball with the mass of 0.09 kg and with the acceleration of 2,800 m/s² is equal to 252 newtons.

Force that acts on an object can create acceleration. We know this from Newton's second law of motion, which is a = F/m, where a is acceleration, F is force, and m is mass. The equation means that the larger the force or the smaller the mass, the larger the acceleration, and the smaller the force or the larger the mass, the smaller the acceleration.

We can rearrange the equation into F = ma. This means that force is equal to the mass times the acceleration. Given that the mass is equal to 0.09 kg and the acceleration is equal to 2,800 m/s², the net force is equal to

F = ma

F = 0.09 kg · 2,800 m/s²

F = 252 kg · m/s² = 252 N.

Learn more about force at https://brainly.com/question/12785175.

#SPJ4

Hello,

In other words, when the speed doubles the collision energy of the car, or simply the kinetic energy, is multiplied by two.

Answer:

\(16.25^{\circ}\)

Explanation:

R = Horizontal range of projectile = 75 m

v = Velocity of projectile = 37 m/s

g = Acceleration due to gravity = \(9.81\ \text{m/s}^2\)

Horizontal range is given by

\(R=\dfrac{v^2\sin2\theta}{g}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{Rg}{v^2}}{2}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{75\times 9.81}{37^2}}{2}\\\Rightarrow \theta=16.25^{\circ}\)

The angle at which the arrow is to be released is \(16.25^{\circ}\).