Given the following code snippet, what is considered an argument(s)?def mystery(num1, num2) :result = num1 ** num2return resultmystery(10, 2)

The answers are 1) The value of R2 is not relevant as it implies a downward force on the plank, 2) The reactions at C and D are 66.3 N and 90 N, respectively, and 3) The vertical force at B to lift the plank clear of D is 686.4 N. The reaction at C is zero, and the reaction at D is 61.4 kg.

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Answer:

D = 4.47d

Explanation:

given that

1/R(eq) = 20/R

R(eq) = R/20

also, we know that the formula for resistance is given by the relation

R = pl/A, where A is πd²/4

If we substitute the value of A, we have

R = pl/(πd²/4)

R = 4pl/πd²

Now, we substitute this in the earlier derived equation

R(eq) = (4pl/πd²) / 20

R(eq) = pl/5πd²

To find the resistance of a single wire made of the same material, the resistance is

R(D) = 4pl / πD²

R(eq) = R(D), and thus

pl/5πd² = 4pl/πD²

1/5d² = 4/D²

D² = 20d²

D = √20d²

D = 4.47 d

Answer:

false

Explanation:

i just took the test <3

The period of a pendulum is not directly proportional to the mass of the bob. The period of pendulum is independent of the mass of the bob. Thus, the given statement is false.

A simple pendulum is the one which consists of a small metal ball called as the bob or a mass which is suspended from a fixed point by a long piece of thread such that the bob is free to swing back and forth from its mean position under the influence of the gravity.

The time period of a simple pendulum is the time taken by it to complete one oscillation. The formula for the time period or period (T) of a simple pendulum is T = 2π (√L/g), where L is the length of the pendulum thread and g is the acceleration due to gravity.

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Explanation:

where I is the current, L is the length of the wire, and B is the magnetic field.

If we point our right-hand thumb in the direction of the current (to the right), and our fingers in the direction of the magnetic field (away from us), then our palm will point in the direction of the force.

The initial force of motion and inward acting force

The total rotational kinetic energy of the system can be found by evaluating the above expression using the given values of m, r, and ω \(KE = 1/2 * (m1 * r1^2 + m2 * r2^2 + m3 * r3^2) * (2.00 rad/s)^2\)

The total rotational kinetic energy of a system can be found by evaluating the expression 1/2 Iω^2, where I is the moment of inertia of the system and ω is its angular velocity. In this case, the moment of inertia of the system can be found by adding the moments of inertia of each particle and the connecting rods.

Since the rods have negligible mass, their moment of inertia is also negligible and can be ignored. The moment of inertia of each particle is given by the formula:

I = mr^2

where m is the mass of the particle and r is its distance from the axis of rotation.

Assuming the particles have masses m1, m2, and m3 and distances from the axis of rotation r1, r2, and r3, respectively, the total moment of inertia is:

\(I = m1 * r1^2 + m2 * r2^2 + m3 * r3^2\)

Substituting the given values, we find:

I = (m1 * r1^2 + m2 * r2^2 + m3 * r3^2)

Finally, substituting the moment of inertia and angular velocity into the expression for rotational kinetic energy, we find:

KE = 1/2 * I * ω^2

\(KE = 1/2 * (m1 * r1^2 + m2 * r2^2 + m3 * r3^2) * (2.00 rad/s)^2\)

So, the total rotational kinetic energy of the system can be found by evaluating the above expression using the given values of m, r, and ω.

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The average force is equal to the area under the curve of force versus time divided by the time of contact between the hammer and the nail.

The equation can be used to determine the average force the nail applies to the hammer.

\(F = \frac{mv}{t}\), where m is the hammer's mass, v is its speed, and t is the time at which it made impact with the nail. The average force in this situation is given by:

\(F = \frac{(2.5 kg)(6 m/s - 2.0 m/s)}{(0.002 s)}\\ F= 4500 N.\)

To solve this problem using force vs. time, you would need to plot a graph of force versus time, with the time of contact between the hammer and the nail representing the x-axis and the force exerted on the hammer by the nail representing the y-axis. The force exerted on the hammer increases from 0 to 4500 N as the hammer moves from rest to its maximum velocity. The average force is equal to the area under the curve of force versus time divided by the time of contact between the hammer and the nail.

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A mineral association that should not be found in nature would be a rock that contains both early-forming mafic minerals (such as olivine, pyroxene, and amphibole) and late-forming felsic minerals (such as plagioclase feldspar, quartz, and potassium feldspar) together in the same rock.

Bowen's reaction series is a model that describes how different minerals crystallize from a cooling magma or lava. The minerals that crystallize first, called early forming minerals, are generally rich in iron and magnesium and include olivine, pyroxene, and amphibole. Later-forming minerals, on the other hand, are typically rich in silicon and aluminum and include plagioclase feldspar, quartz, and potassium feldspar.

Crystal settling is the process by which heavier, denser minerals settle to the bottom of a magma chamber due to gravity, while lighter, less dense minerals remain suspended in the magma. This process can occur as the magma cools and solidifies, or as the magma is intruded into existing rock.

Given this information, a mineral association that should not be found in nature would be a rock that contains both early-forming mafic minerals (such as olivine, pyroxene, and amphibole) and late-forming felsic minerals (such as plagioclase feldspar, quartz, and potassium feldspar) together in the same rock. Because these minerals crystallize out at different temperatures and pressures, it is unlikely that they would be found together in the same rock unless there was some form of re-melting or re-crystallization that brought them together.

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Explanation:

A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.

Hope it helps You °_°

Answer:

decreases

Explanation:

In general, a solid object will expand when heated. That means that it's volume increases, but because the object's mass (weight) does not increase, the density is reduced. the equation is Mass/Volume.

Like many rules however water (as ice) does not follow this exactly. Ice expands slightly as it cools below 70 K

Answer:

A.) Work function = 2.3 eV

B.) Max. K.E observed = 1.1 eV

Explanation:

A.) Millikan observed a maximum kinetic energy of 0.550 eV when electrons were ejected with 433.9-nm light. When light of 253.5 m was used, he observed a maximum kinetic energy of 2.57 eV. 

work function (f) is the minimum energy required to remove an electron from the surface of the material.

hf = Ø + K.E (maximum)

Where

h = Plank constant 6.63 x 10-34 J s

Ø = work function

hc/λ = Ø + K.E (max)

(6.63×10^-34 × 3×10^8)/433.9×10^-9 = Ø + 0.550 × 1.6×10^-19

4.58×10^-19 = Ø + 8.8×10^-20

Ø = 4.58×10^-19 - 8.8×10^-20

Ø = 3.7 × 10^-19 J

Converting Joule to eV

Ø = 3.7 × 10^-19/1.6×10^-19

Ø = 2.3 eV

B.) When light of wavelength 362.4 m is used

The maximum K.E observed = incident light K.E - (the work function).

Incident K.E = hf = hc/λ

Incident K.E =

(6.63×10^-34 × 3×10^8)/362.4

Incident K.E = 5.5 × 10^-28J

Let's convert joule to eV

Incident K.E = 5.5×10^-28/1.6×10^-19

Incident K.E = 3.4 × 10^-9

Max. K.E observed = 3.4 - 2.3

Max. K.E observed = 1.1 eV

Answer: energy will be transferred from the warmer object to the cooler one. The movement of thermal energy from a substance at a higher temperature to one at a lower temperature is called heat. When a substance is heated, it gains thermal energy.

Explanation:

The final density of air coming to a uniform state after the membrane is broken is 1.23 kg / m³

ρ = m / V

ρ = Density

m = Mass

V = Volume

\(m_{A}\) = 1 kg

\(V_{A}\) = 0.6 m³

\(V_{B}\) = 0.8 m³

ρ\(_{B}\) = 0.9 kg / m³

Total mass, m = \(m_{A}\) + \(m_{B}\)

m = \(m_{A}\) + ρ\(_{B}\) \(V_{B}\)

m = 1 + ( 0.8 * 0.9 )

m = 1.72 kg

Total volume, V = \(V_{A}\) + \(V_{B}\)

V = 0.6 + 0.8

V = 1.4 m³

Final density, ρ = m / V

ρ = 1.72 / 1.4

ρ = 1.23 kg / m³

Therefore, the final density of air coming to a uniform state after the membrane is broken is 1.23 kg / m³

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Answer:

Each gram of carbohydrate and protein yield 4 calories/gram. Each gram of fat yields 9 calories. A calorie is a measurement, just like a teaspoon or an inch. Calories are the amount of energy released when your body breaks down (digests and absorbs) food.

Answer:

i think its the top one

Explanation:

pls tell me if im wrong  

Answer:

CABT

Explanation:

Answer:

this is very valuable information

Explanation:

thanks for letting me know ahead of time

The correct statement which best describes a magnetic object from among the options above is:

They have many spinning electrons oriented in the same direction that create magnetic fields.

The correct answer choice is option a.

When magnetic material spins its electrons in the same axis in the magnetic field, the force of current which passes through the same direction results in the attraction which exists between the magnetic object and magnetic substance.

So therefore, we can now confirm that when we consider the orientation of electrons of magnetic material in a direction similar to field, it causes attraction.

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Answer:

Divergence generally means two things are moving apart while convergence implies that two forces are moving together. ... Divergence indicates that two trends move further away from each other while convergence indicates how they move closer together.

Explanation:

1. Gas particles move randomly and rapidly in all directions and collide with each other and the walls of the container, creating pressure, 2. Liquids and solids have more ordered and restricted motion compared to gases, 3. Solids have fixed positions, liquids can move around each other, and gases move rapidly in all directions, and 4. The phase diagram shows the relationships between the states of matter at different temperatures and pressures and is important for predicting the behavior of substances and optimizing chemical reactions.

A phase diagram is a graph that shows the relationships between the different states of matter of a substance at different temperatures and pressures, providing information on the behavior of the substance under different conditions. It is an essential tool in understanding the behavior of materials in various conditions and in designing chemical processes that operate efficiently under different conditions.

1. Gas Properties simulation allows you to observe the behavior of gas particles. When you put a little gas into the box using the pump, you can see that the gas particles move randomly and rapidly in all directions. They collide with each other and with the walls of the box, creating pressure. When you pump in some lighter particles, such as helium, you can observe that they move faster and more chaotically than the heavier particles. They also bounce off the walls of the box more easily than the heavier particles. Changing the temperature of the gas affects the behavior of the particles. When the temperature increases, the particles move faster and collide more frequently, creating a higher pressure. When the temperature decreases, the particles move slower and collide less frequently, creating a lower pressure.

Based on the observations, a gas can be described as a state of matter in which the particles are widely spaced, move rapidly and randomly in all directions, and are not held together by any significant forces. The gas particles have a large amount of kinetic energy and exhibit rapid motion.

2. States of Matter simulation allows you to see how well liquids and solids match the description of gas particles. When you compare the behavior of gas particles to that of liquids and solids, you can see that liquids and solids have much more ordered and restricted motion than gases. In liquids, the particles are close together and move more slowly, while in solids, the particles are tightly packed and vibrate in fixed positions.

3. The motion of particles in solids, liquids, and gases can be explained using diagrams. In a solid, the particles are packed closely together in a regular pattern and vibrate in fixed positions. In a liquid, the particles are also close together but are not in a fixed pattern and can move around each other. In a gas, the particles are widely spaced and move rapidly in all directions. To create a diagram, you can use circles to represent the particles and arrows to show their motion.

The similarities between the three states of matter include the fact that the particles that make up each state are constantly in motion. The differences lie in the level of motion and the degree of freedom of the particles. Solids have the least amount of freedom, followed by liquids, and gases have the most freedom. Liquids and solids have definite shapes and volumes, while gases have neither definite shape nor definite volume.

4. The phase diagram is a graph that shows the relationships between the different states of matter at different temperatures and pressures. It is important in structure analysis and chemical reaction as it provides information on the behavior of substances at different temperatures and pressures. The phase diagram can help to predict the behavior of a substance under different conditions and can be used to identify the different phases that exist at different points. The phase diagram is also used in industrial processes to optimize chemical reactions and to design chemical processes that operate efficiently under different conditions. Understanding the phase diagram is essential in chemistry and materials science as it provides insight into the behavior of materials under various conditions.

Therefore, 1. Pressure is created when gas particles collide with one another and the container walls while moving randomly and quickly in all directions, 2. Compared to gases, the motion of liquids and solids is more controlled and ordered 3. While liquids can move around one another and gases move quickly in all directions, solids have fixed positions, and 4. The phase diagram is crucial for predicting the behavior of substances and optimizing chemical reactions because it depicts the relationships between the states of matter at various temperatures and pressures.

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Answer:

laws ig .

Explanation:

Answer:

The graph data expresses the data started high up and moved into a continuous reaction before slowly decreasing and hit a point, where it remained the same.

After the collision, the ball of mass m rebounds to the left with velocity v.

9/4mv² is the loss of kinetic energy in the collision.

What is collision?

When two bodies such as two pool cues, a golf club and a ball, a hammer and a nail, two railroad cars when connected, or a falling object and a floor abruptly and violently collide, this is referred to as a collision, also known as an impact.

What is kinetic energy?

The energy of motion, or kinetic energy, can be observed in the movement of an item or a subatomic particle. Every moving object and individual particle contains kinetic energy. When something moves, like when a person walks, a baseball flies, a piece of food falls off a table, or a charged particle moves in an electric field, it is exhibiting kinetic energy.

initials : m 1 =m ,m 2=2m,u1=2v,u 2 =−v

after collision: v 1 =−v

using conservation of linear momentum:

m1u1+m2u2=m1v1+m2v2

2mv−2mv=−mv+2mv2

v2 = V/2

Initial kinetic energy=m1 u²₁/2+ m2 u²₂/2= 3mv²

Initial kinetic energy=m1 v²₁/2+m2 v²₂/2 = 3/4 mv²

loss in Kinetic Energy=InitialKE−FinalKE

9/4mv²/2 = 3/2mv²

Therefore, collision, the ball of mass m rebounds to the left with velocity v. 9/4mv² is the loss of kinetic energy in the collision.

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The acceleration of the particle when it achieves its maximum displacement in the positive x-direction is -6.00\(m/s^2\).

The acceleration of a particle is defined as the rate of change of its velocity with respect to time. In this case, the velocity of the particle is given by vx = 32.0t - 2.00t^3 m/s. To find the acceleration, we can differentiate this expression with respect to time:

ax = dvx/dt = 32.0 - 6.00\(t^2 m/s^2\).

The particle achieves its maximum displacement in the positive x-direction when its velocity is zero, which occurs when vx = 0. Solving for t in the equation vx = 32.0t - 2.00\(t^3\) = 0, we find that t = ±√(16/3) s. The particle achieves its maximum displacement in the positive x-direction, so we want the positive value of t, which is t = √(16/3) s. Plugging this value of t into the expression for ax, we find that the acceleration of the particle is ax = 32.0 - 6.00(16/3) = -6.00 \(m/s^2\).

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The resultant wave for the two given waves is option (a). As the trough of first wave will add up with the crest of second wave. Therefore, the resultant will be the cancellation of crest and troughs and results into a straight line.

Answer:

18 kg * m/s

Explanation:

The equation for momentum is:

momentum = mass * velocity

And although the problem already gave velocity, you must calculate the mass from the graviational force.

Fg = 3.4N = mg = 9.8m

mass = 3.4 N / 9.8 m/s^2 = 0.3469 kg

Momentum = 52m/s * 0.3469 kg - 18.041 kg * m/s = 18

Answer:

A

Explanation:

power =  energy/time

200 = energy / t

200 = 4000/t

t = 4000/200= 20 sec

Explanation:

mgh clown 1   =  75 kg * 9.81 m/s^2 * 7 m = 5150.25 J

   = mgh of clown 2

         5150.25 = 50 kg * 9.81 * h

                h = 10.5 m for clown 2

Answer:

a) 109.76 J

b) 3.07 kg-m^2

c) no!

it is not possible to build a wheel with moment of inertia of 10 kg-m^2, with the same mass and radius of the wheel.

Explanation:

Radius of the wheel = 0.32 m

mass of the wheel = 30 kg

hanged block mass = 7 kg

height of fall of mass = 2.5 m

final velocity of travel v = 5.6 m/s

initial velocity u = 0 (body is released from rest)

a) According to the energy conservation principle, the kinetic energy of the falling mass will be transformed into the rotational kinetic energy of the wheel

kinetic energy of the falling body = \(\frac{1}{2} mv^{2}\)

= \(\frac{1}{2}\) x 7 x \(5.6^{2}\) = 109.76 J

b) moment of inertia I of the wheel = \(mr^{2}\)

m is mass of the wheel,

r is the radius of the wheel

I = 30 x \(0.32^{2}\) = 3.07 kg-m^2

c) no!

it is not possible to build a wheel with moment of inertia of 10 kg-m^2, with the same mass and radius of the wheel