The gravity lock of the Moon to Earth is similar to the action of a O magnetic compass. giant pendulum. O master key. spinning top O tidal wave

The velocity of the ball after gaining 20 J of kinetic energy is approximately 10 m/s.

We can use the conservation of energy principle to find the  haste of the ball after gaining 20 J of kinetic energy.

The conservation of energy principle states that the total energy of a unrestricted system remains constant, meaning that energy can not be created or destroyed, only  converted from one form to another.   originally, the ball is at rest, which means that it has no kinetic energy. thus, the total energy of the system is equal to the implicit energy of the ball, which is zero. After gaining 20 J of kinetic energy, the total energy of the system is 20J. where KE is the kinetic energy, m is the mass, and v is the  haste of the ball.  

Rearranging the formula,

we get   v =  √( 2KE/ m)  

Substituting the values given, we get

  v =  √( 2 × 20 J/0.4 kg) ≈ 10 m/ s

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Answer:

Distance=speed×time

Speed of light= 299 792 458 m/s

D= 299 792 458m

[tex]d =299 792 458 m/s \times 8s = 2,398,339,664m[/tex]

a) In an ideal slingshot, the rock will leave with 100 J of kinetic energy.

b) In a non-ideal slingshot, the rock will leave with 90 J of kinetic energy due to 10 J loss to heat and sound.

a) When using a slingshot, you store potential energy by stretching the rubber band. In an ideal slingshot,all the potential energy is converted to kinetic energy when the rock is released. So, if you stored 100 J of potential energy, the rock would leave with 100 J of kinetic energy. However, in a non-ideal slingshot

(b), some energy is lost to heat and sound. If 10 J is lost, then the remaining energy, 90 J, will be the kinetic energy of the rock when it leaves the slingshot.

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The mass of silver formed when 15.0 A of current is passed through molten AgCl for 25.0 minutes is approximately 25.08 grams.

To calculate the mass of silver formed when 15.0 A of current is passed through molten AgCl for 25.0 minutes, we need to use Faraday's law of electrolysis.

First, let's convert the time from minutes to seconds:

t = 25.0 minutes

 = 25.0 × 60 seconds

 = 1500 seconds

The formula for Faraday's law is:

Mass of substance = (Current × Time) / (Faraday's constant ×  Number of electrons involved in the reaction)

For the electrolysis of AgCl, the number of electrons involved is 1.

The Faraday's constant is 96,485 C/mol.

Now, let's calculate the mass of silver formed:

1. Calculate the electric charge passed through the electrolyte:

Electric charge = Current × Time

Electric charge = 15.0 A × 1500 s

                         = 22,500 C

2. Calculate the moles of silver formed:

Moles of silver = Electric charge / (Faraday's constant × Number of electrons)

Moles of silver = 22,500 C / (96,485 C/mol × 1)

3. Convert moles of silver to grams:

Mass of silver = Moles of silver × molar mass of silver

Mass of silver = 0.2327 mol × 107.87 g/mol

                       ≈ 25.08 g

Therefore, the mass of silver formed when 15.0 A of current is passed through molten AgCl for 25.0 minutes is approximately 25.08 grams.

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The length of the wire that is required is 653 km

The direction of the magnetic force on the conductor is perpendicular both to the direction of the magnetic field and to the direction of the current flow in the conductor.

The formula for the magnetic force on a current carrying conductor is given by:

F = BIL sin(θ)

We know that the force that is acting on a current carrying conductor can be given as;

F = BIL

L = F/BI

L = 12N/2.5 * 10^-6 * 7.35

L = 653 km

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The Coriolis effect arises primarily from the rotation of the Earth around its axis (option E). This phenomenon occurs due to the planet's spherical shape and its rotational motion. The Coriolis effect causes the path of moving objects, such as air currents and ocean currents, to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.

This deflection has significant impacts on weather patterns, ocean currents, and the general circulation of Earth's atmosphere.

The Coriolis effect primarily arises from the rotation of the Earth around its axis. This phenomenon causes moving objects, such as air or water, to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The curvature of the Earth's surface also plays a role in the Coriolis effect, as it determines the distance an object travels over the Earth's surface in a given amount of time. However, it is the Earth's rotation that ultimately causes the Coriolis effect to occur.

This effect is important in many natural systems, such as ocean currents and weather patterns, as it influences the direction and speed of their movement.

Additionally, the Coriolis effect is also a factor in many human activities, such as aviation and ballistic missile trajectories. Understanding the Coriolis effect is essential for predicting and managing many aspects of our world, making it a crucial concept in science and engineering.
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The boxes will move together with the same acceleration since they have the same mass and are being pulled by the same force on a frictionless surface.

When two blocks with the same mass are connected by a string and pulled across a frictionless surface by a constant force, F, the following statement is correct about what will happen to the boxes: Both blocks will accelerate at the same rate, since they have the same mass and are experiencing the same net force (F) acting on the entire system. The tension in the string connecting the blocks will also be constant throughout the motion. The acceleration of the two boxes will be proportional to the force applied, divided by the mass of the boxes. Since the boxes have the same mass, they will experience the same acceleration, which means they will move at the same speed.

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Answer:

no se English plis

Explanatique

que si aumente la rad/s en el angular. de  su velocity

The given statement "A spring is hung from the ceiling. When a block is attached to its end, it stretches 3.0 cm before reaching its new equilibrium length. The block is then pulled down slightly and released" is True. When the block is attached to the spring, it causes the spring to stretch due to the weight of the block.

The amount of stretch is 3.0 cm, which is the difference between the new equilibrium length with the block attached and the original length of the spring without the block.

When the block is pulled down slightly and released, it will oscillate up and down around the new equilibrium length. This is because the spring has been stretched beyond its original length and now has potential energy stored in it. When the block is released, this potential energy is converted into kinetic energy, causing the block to accelerate toward the equilibrium position.

As the block reaches the equilibrium position, it will momentarily stop before continuing to move in the opposite direction. This is because the potential energy stored in the spring is now converted back into kinetic energy, causing the block to accelerate towards the other extreme position. The block will continue to oscillate back and forth until it eventually comes to a stop due to frictional forces.

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Units responding to a motor vehicle accident on the highway should consider weather conditions as part of their pre-arrival assessment. The answer is b.

When responding to a motor vehicle accident on the highway, emergency units should conduct a pre-arrival assessment to gather information about the situation and prepare themselves for the response.

One important aspect of this assessment is considering the weather conditions, as this can have a significant impact on the response and the safety of everyone involved.

For example, if the weather is rainy or icy, the road conditions may be hazardous and may require special precautions, such as slowing down, using tire chains, or closing the road altogether.

If there is a risk of lightning, responders may need to take shelter or postpone the response until the storm has passed. In addition, weather conditions can affect the type and severity of injuries sustained by the victims, which can inform the urgency and priority of the response.

Other considerations that may be part of the pre-arrival assessment include determining the need for additional units to respond, assessing the need for immediate transport, and considering the need for post-exposure prophylaxis in certain situations.

However, in the context of a motor vehicle accident on the highway, weather conditions should always be a key part of the assessment to ensure the safety and effectiveness of the response.

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The period T is 0.0100 seconds and the block takes 0.0050 seconds to travel from the point of maximum displacement to the opposite point of maximum displacement.

Part G: To find the period T, we need to first determine the fraction of a full wavelength that is covered when moving from point t = 0 to point K. Since the x-coordinate of point R is 0.12 m and the t-coordinate of point K is 0.0050 s, we can assume that point K is located at half a wavelength.
Step 1: Determine the fraction of a full wavelength (a)
Since point K is at half a wavelength, the fraction a is 1/2.
Step 2: Calculate the period T
We know that aT = 0.0050 s, and a = 1/2.
(1/2) * T = 0.0050 s
Now, divide by the fraction a (1/2) to find the period T.
T = 0.0050 s / (1/2)
T = 0.0100 s
Part H: To find the time t it takes for the block to travel from the point of maximum displacement to the opposite point of maximum displacement, we can use the period T calculated in Part G.
Since the block travels from one point of maximum displacement to the opposite point of maximum displacement in half a period:
Step 1: Calculate the time t
t = (1/2) * T
t = (1/2) * 0.0100 s
t = 0.0050 s

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It is possible that current SETI efforts could detect the television transmissions of a civilization around a nearby star if they were transmitting strong enough signals in a direction that we are able to receive. However, it is important to note that our current SETI efforts are primarily focused on detecting narrowband signals.

which are typically used for communication purposes, rather than the broad spectrum signals that are typically associated with television transmissions. Additionally, the signals would need to be strong enough to overcome the background noise of the universe and would need to be transmitted at a frequency that we are able to detect. Overall, while it is theoretically possible to detect television transmissions from a nearby civilization, it would be a challenging endeavor and would require the use of advanced technology and techniques.
A civilization around a nearby star with television like ours might not be easily detected by current SETI efforts. SETI mainly focuses on detecting narrowband radio signals, which are different from the broadband signals used for television transmissions. Additionally, the distance and potential interference from other cosmic sources could make it challenging to identify these signals specifically from that civilization.

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ans. = 2

we know that,

the formula for small angle deviation is

deviation = ( refractive index - 1)angle of the prism

putting values we get

= ( 1.5 -1 ) 4

= 0.5 x 4

= 2

Hence, the deviation of prism is 2

At the frictionless ice skating rink, a customer tries out a new exercise machine consisting of a large spring, which allows the skater to oscillate back and forth, the skater's mass is a key factor in determining the oscillation behavior of the spring-skater system.

Down at the ice skating rink, we observe a customer trying out a new exercise machine that consists of a large spring. The spring allows the skater to oscillate back and forth. Assuming frictionless ice, the skater's mass does not have an effect on the motion of the spring. The period of oscillation, which is the time it takes for one complete back-and-forth motion, depends solely on the spring constant and the mass of the skater. Specifically, the period is given by the formula T=2π√(m/k), where T is the period in seconds, m is the mass of the skater in kilograms, and k is the spring constant in newtons per meter.

Thus, a heavier skater will have a longer period than a lighter skater, assuming the spring constant remains the same. Additionally, the amplitude of the oscillation, which is the maximum displacement from the equilibrium position, may also depend on the skater's strength and technique in using the machine.

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Constant patterns of particle behavior are called "laws of nature" or "physical laws."

These terms refer to the regular, predictable behavior of particles under certain conditions, which can be described mathematically or through scientific principles.

Examples of physical laws include Newton's laws of motion, the laws of thermodynamics, and the laws of conservation of energy and mass.

The constant patterns of particle behavior are often referred to as laws or principles.

In the context of physics, these laws describe the fundamental rules that govern the behavior of particles and systems, such as the laws of motion, the laws of thermodynamics, and the laws of electromagnetism.

These laws have been formulated through observation, experimentation, and theoretical modeling, and they provide a framework for understanding the natural world.

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Newton's laws apply to the following things in your list: galaxies, planets, rocks on Earth, trucks, satellites in space, rocks on Mars, and airplanes.

This is because Newton's laws are universal, governing the motion of objects and the forces that act upon them, regardless of their location or scale.

According to "Newton's first law of motion", if a body is in rest, it will stay in rest until or unless an external or an unbalanced force is applied on the body to make it move. A satellite has a forward thrust, which is offset by the gravity of the earth and keeps the satellite orbiting around its orbit not falling it into the earth. The momentum that the satellite gained from its launch combines with the gravity of the earth cause the satellite go into the orbit above earth.

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If the Biot number is increased by increasing h while keeping everything else the same, less heat will be exchanged between the block and the fluid bathing the right face.

B) False because, An increase in the Biot number (Bi) is achieved by increasing the convective heat transfer coefficient (h) while keeping other parameters the same.

The Biot number is defined as:
Bi = hL/k
where L is the characteristic length of the object, and k is the thermal conductivity of the material.

As you mentioned, an increase in h would imply greater convection at the boundary, leading to more heat being exchanged at the boundary.

This increase in h could indeed come from an increase in the flow rate of the fluid that is bathing the right face. Therefore, the statement "less heat will be exchanged between the block and the fluid bathing the right face" is false.

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Option a) State functions. State functions are properties of a system that only depend on the current state of the system and not on how the system reached that state.

State functions do not depend on the path taken to reach a particular state, but only on the final and initial states themselves.

Temperature, pressure, and volume are not state functions as they can be influenced by external factors and their values can change depending on the process or path taken to reach a particular state.

The dependence of a system on how it reached a particular state is determined by whether the property is a state function or not.

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The kilograms of fluid lost due to the leak in a 40L vessel containing a fluid is 4.2 grams.

To determine the kilograms of fluid lost due to the leak, we need to use the ideal gas law equation, which states:

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature.

Assuming the fluid is a gas, we can use this equation to calculate the number of moles of gas in the container at the initial conditions. We can then use the same equation to calculate the number of moles of gas in the container after the leak has occurred, using the new pressure and temperature values.

Once we have the number of moles of gas before and after the leak, we can calculate the difference and convert it to kilograms using the molar mass of the fluid. For example, if the fluid is nitrogen gas (N₂) at an initial temperature of 25°C and pressure of 1 atm, we can calculate the number of moles of gas using:

PV = nRT

(1 atm)(40 L) = n(0.0821 L atm/mol K)(298 K)

n = 1.64 mol

If the leak is discovered and the temperature drops to 20°C and pressure drops to 0.9 atm, we can calculate the number of moles of gas using:

PV = nRT

(0.9 atm)(40 L) = n(0.0821 L atm/mol K)(293 K)

n = 1.49 mol

The difference in moles is 0.15 mol, which we can convert to kilograms using the molar mass of nitrogen gas (28 g/mol):

0.15 mol x 28 g/mol = 4.2 g

Therefore, the amount of nitrogen gas lost due to the leak is 4.2 grams.

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The correct answer is D. StarA is more massive than starB.

Star A being more luminous than Star B while having the same temperature suggests that Star A must be more

massive than Star B. This is because a star's luminosity is directly proportional to its mass, and therefore, the more

massive the star, the more luminous it will be. The size of the star is not necessarily related to its temperature or

luminosity, so we cannot determine whether Star A is larger, smaller, or of the same size as Star B based on the given information.

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xCM, yCM = 0, -3.27 m are the coordinates of the center of mass of the loaded ferryboat relative to the center of the raft.

To find the coordinates of the center of mass (CM) of the loaded ferryboat, we need to consider the mass and position of the raft and the three cars. We will use the following formulas for finding the x and y coordinates of the center of mass:

xCM = (Σ mi * xi) / Σ mi
yCM = (Σ mi * yi) / Σ mi

where mi is the mass of each object and xi and yi are their respective x and y coordinates.

Determine the coordinates of the raft and the cars
- The raft's center (origin): (0, 0)
- NE corner car: (9, 9)
- SE corner car: (9, -9)
- SW corner car: (-9, -9)

Calculate xCM
xCM = (7100 * 0 + 1350 * 9 + 1350 * 9 + 1350 * (-9)) / (7100 + 1350 + 1350 + 1350)
xCM = (0 + 12150 - 12150) / (11150)
xCM = 0 m

Calculate yCM
yCM = (7100 * 0 + 1350 * 9 + 1350 * (-9) + 1350 * (-9)) / (11150)
yCM = (12150 - 12150 - 12150) / (11150)
yCM = -3.27 m

So, the coordinates of the center of mass of the loaded ferryboat relative to the center of the raft are:
xCM, yCM = 0, -3.27 m

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If Hubble's constant (H0) were in fact 44 km/s/mly, the approximate age of the universe would be half of the current estimate, which is 7 billion years.

The solution to this scenario would require a re-evaluation and adjustment of current cosmological models and theories, as the age of the universe plays a significant role in understanding its origins and evolution. However, it is important to note that current observations and measurements support the current estimate of H0 and age of the universe.

Solution:
1. Hubble's constant (H0) is used to calculate the age of the universe.
2. The given value of H0 is 22 km/s/Mly, which results in an age of 14 billion years.
3. To find the age of the universe with H0 at 44 km/s/Mly, we can set up a proportion:
  (22 km/s/Mly) / 14 billion years = (44 km/s/Mly) / X
4. Cross-multiply and solve for X:
  22 * X = 44 * 14
  X = (44 * 14) / 22
  X = 28
5. The age of the universe with H0 at 44 km/s/Mly is approximately 7 billion years.

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Yes, the data shows a relationship between the tension and the linear density of the elastic string. This relationship is described by the equation for the wave speed (v) on a string:

v = √(T/μ)
where v is the wave speed, T is the tension in the string, and μ is the linear density (mass per unit length) of the string. This equation shows that the wave speed in an elastic string is directly proportional to the square root of the tension and inversely proportional to the square root of the linear density. In other words, if the tension in the string is increased while the linear density is kept constant, the wave speed will increase. Conversely, if the linear density of the string is increased while the tension is kept constant, the wave speed will decrease. So, in general, there is a relationship between the tension in an elastic string and its linear density, which affects the wave speed of the string.

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To determine which car has the largest mass, we need to use the formula F=ma, where F is the force applied, m is the mass of the object, and a is the acceleration. Since all the cars are accelerating at the same rate, we can compare the forces applied to each car to determine which one has the largest mass.

Looking at the chart, we see that car S has the largest force applied to it, which means it must have the largest mass. Therefore, the answer is d. s.If an object is moving at a constant speed in a constant rightward direction, then the acceleration is zero and the net force must be zero.

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C) We work backward from current conditions to calculate what temperatures and densities must have been when the observable universe was much smaller in size.

This is the most accurate way to determine the conditions of the very early universe, since we can't observe or calculate what they were directly. We use observations of the current universe to work backward and infer what the conditions must have been when the universe was much smaller, before it began to expand. This includes measuring the current temperature and density of the cosmic microwave background radiation, and looking at the distribution of galaxies and other large-scale structures in the universe. Using these observations, we can calculate the temperatures and densities that existed in the very early universe, giving us a glimpse into the conditions at the time of the Big Bang.

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The length of the solenoid is 2 m, which corresponds to option D.

To find the length of the solenoid, we need to use the formula for the magnetic field inside a solenoid:
B = μ₀ * n * I
where B is the magnetic field, μ₀ is the permeability of free space, n is the number of turns per unit length, and I is the current.
We are given:
B = 250 * μ₀
Total turns (N) = 1,000
Current (I) = 0.5 A
First, we need to find the number of turns per unit length (n). We can do this by dividing the total number of turns (N) by the length (L) of the solenoid:
n = N / L
Now, we can rearrange the formula for the magnetic field to find the length (L) of the solenoid:
L = N / (B / (μ₀ * I))
Substitute the given values:
L = 1,000 / (250 * μ₀ / (μ₀ * 0.5 A))

Notice that μ₀ will cancel out:
L = 1,000 / (250 / 0.5)
Now, solve for L:
L = 1,000 / 500 = 2 m.

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"All of these are properties of the Jovian planets."

Jovian planets, also known as gas giants, possess several distinct properties. They are characterized by their large size, high mass, many moons, and being far from the sun. These properties set them apart from terrestrial planets, which are smaller, less massive, have fewer moons, and are closer to the sun.

The four Jovian planets in our solar system are Jupiter, Saturn, Uranus, and Neptune. Their large size and high mass contribute to their strong gravitational pull, which allows them to hold on to numerous moons and a thick atmosphere composed mostly of hydrogen and helium.

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Answer: Yes, because the force of air resistance must be equal to the force of gravity, since the ball is not accelerating (constant velocity). Since the net forces acting on the object is zero, the object is in translational equilibrium.

No, a ball falling with constant velocity is not in translational equilibrium.

Translational equilibrium means that the net force acting on an object is zero, and this is not the case for a ball falling with constant velocity. Gravity is still acting on the ball, so there is a force pulling it downwards. However, the ball is moving at a constant velocity because the force of gravity is balanced by the force of air resistance. So, while the ball is not in translational equilibrium, it is in a state of dynamic equilibrium where the forces acting on it are balanced, resulting in a constant velocity.

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If Jupiter's orbital period were exactly 12 years, then the periods that would not produce an effective resonance with Jupiter would be those that are not simple ratios of Jupiter's period.

A resonance occurs when the orbital period of one planet is a simple ratio of the orbital period of another planet. For example, if the orbital period of one planet is twice that of another planet, they are in a 2:1 resonance.

So, if Jupiter's period were exactly 12 years, the periods that would not produce an effective resonance with Jupiter would be those that are not simple ratios of 12. Here are some examples:

A planet with a period of 3 years (4:1 ratio) would be in resonance with Jupiter.

A planet with a period of 4 years (3:1 ratio) would be in resonance with Jupiter.

A planet with a period of 6 years (2:1 ratio) would be in resonance with Jupiter.

A planet with a period of 8 years (3:2 ratio) would be in resonance with Jupiter.

On the other hand, planets with periods of 5, 7, 9, 10, or 11 years would not be in resonance with Jupiter because their periods are not simple ratios of 12.

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Depending on the direction the pumpkin was thrown, it can be determined if the horizontal position of the pumpkin trajectory reflects a minimum or maximum.

A moving object's trajectory is the path it follows through space as a function of time. In mathematics, a trajectory is defined as an object's position over a specific period of time.

To determine whether the horizontal position of the pumpkin trajectory represents a minimum or maximum, we need to evaluate the second derivative of the vertical position with respect to horizontal position at that point. In other words, we need to find d²y/dx² at x = xm.

Assuming that the pumpkin follows a parabolic trajectory given by the equation y = a + bx + cx², where y is the vertical position and x is the horizontal position, we can find the second derivative as follows:

dy/dx = b + 2cx

d²y/dx² = 2c

Since the pumpkin reaches its maximum height at x = xm, the first derivative dy/dx is equal to zero at that point. Therefore, we have:

dy/dx = b + 2cx = 0

2cx = -b

c = -b/(2x)

Substituting this expression for c into the equation for the second derivative, we have:

d²y/dx² = 2c = -b/x

To determine the sign of this expression at x = xm, we need to know whether the coefficient b is positive or negative. If the pumpkin was launched upwards, then b is positive and the second derivative at xm will be negative, indicating that the trajectory has a maximum at that point. On the other hand, if the pumpkin was launched downwards, then b is negative and the second derivative at xm will be positive, indicating that the trajectory has a minimum at that point.

Therefore, the determination of whether the horizontal position of the pumpkin trajectory represents a minimum or maximum depends on the direction in which the pumpkin was launched.

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