A water wave has a frequency of 0.9 Hz and a wavelength of 3 meters. What is the period of the wave in seconds?

The efficiency of the engine is zero. This means that the engine does not convert any of the heat absorbed from the source into useful work.

The efficiency of the engine can be calculated using the formula:

efficiency = (work done by the engine) / (heat absorbed from the source)

The work done by the engine is equal to the area enclosed by the cycle on a pressure-volume (PV) diagram. We can break down the cycle into four steps and calculate the work done in each step:

Step 1: Isothermal expansion at 358 K from 18.5 L to 39.1 L.

During this step, the gas absorbs heat from the source at a constant temperature of 358 K. The work done by the gas is given by:

work = \($nRT\ln\left(\frac{V_2}{V_1}\right)$\)

where n is the number of moles of gas, R is the universal gas constant, and T is the temperature in Kelvin. Substituting the values, we get:

work = (1 mol)(8.314 J/mol/K)(358 K) ln(39.1 L/18.5 L) = 5678 J

Step 2: Cooling at constant volume to 180 K.

During this step, the gas rejects heat to the sink at a constant volume of 18.5 L. Since the volume is constant, no work is done by the gas.

Step 3: Isothermal compression to the original volume of 18.5 L.

During this step, the gas rejects heat to the sink at a constant temperature of 180 K. The work done on the gas is given by:

work = \($-nRT\ln\left(\frac{V_2}{V_1}\right)$\)

where V2 is the final volume (18.5 L) and V1 is the initial volume (39.1 L). Substituting the values, we get:

work = -(1 mol)(8.314 J/mol/K)(180 K) ln(18.5 L/39.1 L) = -2978 J

Step 4: Heating at constant volume to the original temperature of 358 K.

During this step, the gas absorbs heat from the source at a constant volume of 18.5 L. Since the volume is constant, no work is done by the gas.

The total work done by the engine is the sum of the work done in each step:

total work = 5678 J + 0 J - 2978 J + 0 J = 2700 J

The heat absorbed from the source is equal to the heat absorbed in steps 1 and step 4:

heat absorbed = nCΔT = (1 mol)(21 J/K)(358 K - 358 K) + (1 mol)(21 J/K)(358 K - 358 K) = 0 J

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Answer:

The level of seed in each feeder

Explanation:

The independent variable is the variable which is the suspected cause of an observation, it is the variable that produce the effect observed in the dependent variable. The dependent variable is the variable that is measured

The independent variable is normally the x-value while the dependent variable is the y-value

In the question, Lana wants to find out the kind of birdseed that the neighborhood birds like (to eat) the most by feeding them different types of birdseed and measuring the level of the birdseed in the feeders at regular intervals

the independent variable is the bird seed types which Lana gives to the birds, to determine the type of bird seeds the birds like

The dependent variable is the level of the seed in the feeder which depends on the type of seeds the birds like.

The work done in raising an object results in an increase in the object's gravitational potential energy.option C.

Gravitational potential energy is the energy possessed by an object due to its position relative to a reference point in a gravitational field. When an object is raised, work is done against the force of gravity, and the object gains potential energy as a result.To understand this, let's consider the formula for gravitational potential energy: PE = mgh, where PE represents potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or distance the object is raised.When the object is lifted to a higher position, h increases, resulting in an increase in potential energy. This increase in potential energy is equivalent to the work done on the object against gravity.

The object stores this energy, which can be released or converted into other forms of energy later.The other options, such as internal energy, kinetic energy, and heat energy, are not directly affected by the act of raising an object against gravity. Internal energy refers to the total energy of the object's microscopic particles, kinetic energy is associated with the object's motion, and heat energy is the transfer of energy due to temperature differences. In the context of raising an object, these forms of energy may not necessarily change unless there are other factors involved.option C.

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Answer:

This

Explanation:

Khan academy answer

Answer:

Held

~Hope it Helps!~

Answer:

What part of the Compromise of 1850 was most wanted by the South

California

Oversea slave trade expansion

The Fugitive Slave Law

Change the 36-30 line??????

Explanation:

Detoxification, a high-energy process, takes place in a specific type of tissue. This tissue is characterized by an abundance of cells containing mitochondria, which supply the required energy for detoxification.

The liver is the primary site where detoxification occurs in the body. It is a complex organ responsible for various vital functions, including metabolism and detoxification. The liver contains a large number of cells called hepatocytes, which play a crucial role in the detoxification process.

These hepatocytes are rich in mitochondria, which are often referred to as the powerhouses of the cell. Mitochondria generate adenosine triphosphate (ATP), the primary energy currency of cells, through oxidative phosphorylation.

This ATP production is essential for the energy-intensive processes involved in detoxification, such as the breakdown and elimination of harmful substances like drugs, alcohol, and toxins. Therefore, the high presence of mitochondria in liver cells supports the energy demands required for efficient detoxification processes to take place.

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In physics, we use vector addition to calculate the net force direction when more than one force is applied. Given the separate x and y components of two forces, F₁ and F₂, we sum the components respectively to find the x and y components of the net force. The arctangent of the ratio Fy/Fₓ then gives the direction in degrees relative to the x-axis.

In physics, specifically in mechanics, you can calculate the net force direction when two forces, F₁ and F₂, are being applied by using vector addition. Vector addition can be visualized graphically using arrows or mathematically using components. In this case, since the forces are given in the form of components (x and y), let's handle it mathematically, the x-component of the net force (Fₓ) will be the sum of the x-components of F₁ and F₂. Similarly, the y-component of the net force (Fy) will be the sum of the y-components of F₁ and F₂. This gives us Fₓ = 5.01N + 3.01N and Fy = 3.0N + 2.0N. The direction of the net force can then be calculated using arctangent of the ratio Fy/Fₓ. This will give the direction in degrees relative to the x-axis.

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Answer:

8) Heat energy is the form energy that is transferred from one object to another with different temperatures. Sun is the source of heat energy.

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It 4.5 hours for the light bulb to consume 8100 watt-hours of power.

The energy consumed by the light blub = 8100 watt-hours.

Let the time taken be t hours.

We know that;

Energy = power × time

Energy (E) =  8100 watt-hours

Power (P) = 1800 watt

Time (t) =?

8100 =  1800 × t

= 8100 / 1800

= 4.5 hours

The time taken by the light bulb is 4.5 hours.

Therefore, it could take 4.5 hours for the light bulb to consume 8100 watt-hours.

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Answer:

b1.4m/s to the left

Explanation:

1.4m/s to the left

Answer:

C

Explanation:

Apex

45 N represents the magnitude of the force in the picture.

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of force is the location at which force is applied, and the direction in which the force is applied is known as the direction of the force.

A spring balance can be used to calculate the Force. Newton is the SI unit of force. Hence, 45 N represents the magnitude of the force.

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Answer:

pitch relates to sound because it involves sound getting louder or softer. it does not affect speed.

Answer:

I. A radio transforms electrical energy into sound energy = audio sound.

II. A bulb converts electrical energy into heat and light energy = light.

III. A standing fan converts electrical energy into kinetic energy.

IV. The sun converts nuclear energy into light and heat energy.

V. A microwave oven converts wave energy into heat energy.

Explanation:

Energy can be defined as the ability of a body to do work. There are different forms of energy and these includes; electrical energy, sound energy, light energy, wave energy, nuclear energy, solar energy, etc.

According to the law of conservation of energy which states that, energy cannot be destroyed but can only be converted or transformed from one form to another.

Hence, some examples of energy being converted or transformed are;

I. A radio transforms electrical energy into sound energy = audio sound.

II. A bulb converts electrical energy into heat and light energy = light.

III. A standing fan converts electrical energy into kinetic energy.

IV. The sun converts nuclear energy into light and heat energy.

Answer:

Friction

Explanation:

As the skateboarder goes down the ramp, potential energy is converted to kinetic energy. Because of friction, some of the energy in the system is converted to heat energy. Once the kinetic energy is converted to heat, the energy cannot be converted back to the potential or kinetic energy in the system.

When you walk, you are more likely to be able to walk at a constant velocity. Your walking speed varies as you walk in real-life scenarios, but you aim to maintain a steady pace or velocity. This is how you can keep track of time and distance traveled.

When you walk at a constant velocity, you move forward with a steady speed and direction. The velocity is defined as the rate at which an object's position changes with respect to time. When you walk, you typically aim to move forward with a constant velocity, which is the speed at which you walk and the direction you walk. In certain situations, a constant velocity is ideal, such as when you are traveling long distances and want to arrive at your destination at a certain time. To ensure that you walk at a constant velocity, you need to maintain a steady pace by keeping your stride consistent and avoiding unnecessary stops or changes in direction. Walking with a constant velocity involves maintaining a steady speed and direction. It is possible to achieve this by maintaining a constant pace, keeping your stride consistent, and avoiding any unnecessary stops or changes in direction.

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Answer:

A linear pattern is a continuous decrease or increase in numbers over time

Explanation:

ICD-10-CM codes are -S02.2XXA, W21.01XA, Y93.61, Y92.830

S02.2 for Fracture, Traumatic/Nasal (Bone(s)), ICD-10-CM Alphabetic Index. Both the open fracture code and the dislocation code are not reported. Only the fracture code is provided if a fracture and a dislocation happen at the same place. Search for "dislocation/with fracture" in the alphabetical index to be sent to a doctor. A closed fracture is a fracture with displacement. To report the conditions leading up to the injury, external cause codes are utilized. Look for Struck (accidentally) by/ball (struck) (thrown)/football W21.01 in the ICD-10-CM External Cause of Injuries Index. Seven characters are required in the Tabular List to finish the code. For the first encounter, X is utilized as a stand-in for character number six, and character number seven is given the letter A.

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The axial resistance of an axon is calculated using the formula R = ρL/A, where ρ is the resistivity, L is the length, and A is the cross-sectional area. In this case, the axial resistance is 11.28 MΩ.

The resistance along the axon is calculated using the following formula:

R = ρL/A

where:

R is the resistance in ohms

ρ is the resistivity in ohms per meter

L is the length in meters

A is the cross-sectional area in meters squared

In this case, we have:

ρ = 1.6 x 107 Ω.m

L = 0.5 mm = 0.0005 m

A = πr² = π(5 x 10-6)² = 7.854 x 10-13 m²

Therefore, the resistance is:

R = ρL/A = (1.6 x 107 Ω.m)(0.0005 m) / (7.854 x 10-13 m²) = 11.28 MΩ

Therefore, the axial resistance of the axon is 11.28 MΩ.

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Explanation:

using Charles law; since the pressure is constant

V1/T1 = V2/T2

5/300 = V2/350

cross multiply

V2 X 300 = 5 X 350

V2 = 1750/300

V2 = 5.833L

Answer:

on the first shell (ring) there will be 2 electrons

and on the 2nd shell there will be only one electron

while in the nucleus (the middle of the diagram) there will be 4 neutrons and 3 protons

Explanation:

 you can see the picture attached

The friction which acts on the object that is not moving is static friction, so, option A is correct.

Between two surfaces that are sliding or attempting to slide over one another, there is a force called friction. For instance, friction makes it challenging to push a book down the floor. Friction always moves an object in a direction that is counter to the direction that it is traveling or attempting to move.

Static friction is 0 for an object at rest on a level surface. Static friction generates an equal and opposite force that holds the book at rest if you push horizontally with a small force.

The static friction force grows to meet the force as you push harder. The book eventually moves when the maximum static friction force is reached.

Thus, the friction is static.

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Answer: I agree and it’s really gross

Explanation:

The statement that is true is that; nuclear fission is used to produce electric power in nuclear reactors.

We know that a fission reaction has to do with a kind of reaction in which a radioactive nucleus is bombarded by the use of a particle and then there is the disintegration of the atomic nucleus in order to produce energy.

This has been one of the ways by which we can be able to generate electricity in several power plants across the world. The loss in the mass of the reactants is the equivalent of the energy produced.

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Answer:

pressure=force/area