onsider a simple pendulum that is 0.25 m long. It swings (oscillates) on a planet where gravity is 1/3 the value of gravity on the Earth. What is the pendulum's period of oscillation? sec What is the length of this physical pendulum? Assume that g -9.8 m/s2 A rod suspended at its end acts as a physical pendulum and swings with a period of 2.4 s

Answer:

You take the basic formula of E = I x R, solve for R -> R = E / I. In other words, take the required voltage drop (in volts) and divide by the current (in amps) in the resistor and determine the resistance (R) in ohms.

Explanation: hope this helps

Answer:

must double the force, with the same masses you get twice the acceleration.

Explanation:

Newton's second law establishes a relationship between force and acceleration where the constant of proportionality is mass

        F = m a

To prove these relationships you must double the force, with the same masses you get twice the acceleration.

     2F = m 2a

The downside is that if you double the mass, the acceleration stays the same.

    2F = 2m   a

Sources of mineral resources are most commonly magma, sediments, or hydrothermal fluids.

Examples of mineral resources are iron, diamond, gold, silver, copper, aluminum, granite, marble, clay, salt, rare earths or fossil fuels.

What are mineral resources?

A mineral resource is a concentration of natural solid inorganic or fossilized organic matter, including metals, coal and minerals, in sufficient quantity and quality to have reasonable prospects for economic exploitation. This definition has a broader scope than mineral reserves that are likely to be economically recovered based on consideration of technical, economic, and legal concerns.

Mineral resources means minerals, naturally occurring solid inorganic substances, or naturally occurring solid fossilized organic substances (including base metals, precious metals, coal and industrial minerals), in or on the earth's crust, such Means concentrated or occurring in form and quantity and in its grade or quality. There are reasonable prospects for economic development. The location, quantity, grade, geological features and continuity of Mineral Resources are known, estimated or interpreted on the basis of specific geological evidence and knowledge.

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For a given potential difference, a bigger resistance means a smaller current through a component.

Resistance in an electrical circuit is a measure of the opposition to the flow of electric current. It is measured in units of ohms (Ω) and is represented by the symbol R in electrical equations.

The amount of resistance in a circuit can affect the amount of current flowing through it and the voltage across it. In a simple circuit, resistance is primarily determined by the materials used in the circuit, such as the wires and the components.

In a more complex circuit, resistance can also be affected by the design of the circuit, including the number of components and the way they are connected. The resistance determines the current in the circuit.

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The processes involved include cooling, heat transfer through conduction, phase change from liquid to solid, latent heat release, and finally reaching an equilibrium temperature with the freezer. These processes collectively enable the water to transform into ice as energy is extracted from it.

The processes that occur as energy is being removed from the water to make ice can be described as follows:

1.Cooling: Initially, when the filled ice-cube tray is placed in the freezer, the water in the tray is at a higher temperature than the freezer's set temperature of -8.00°C. As a result, heat energy starts to transfer from the water to the surrounding colder environment. The water undergoes cooling as its temperature gradually decreases.

2.Heat Transfer: During the cooling process, heat transfer occurs primarily through conduction. The water molecules in direct contact with the tray start losing heat energy to the tray surface. This heat transfer process continues as the tray and the surrounding air act as heat sinks, drawing heat away from the water.

3.Phase Change: As the water's temperature decreases further, it eventually reaches its freezing point, which is 0°C. At this point, the water undergoes a phase change from a liquid to a solid, forming ice cubes. During this phase change, the water molecules lose more energy as they rearrange themselves into a solid crystal lattice structure.

4.Latent Heat Release: The phase change from liquid to solid releases a specific amount of heat energy known as the latent heat of fusion. This latent heat release occurs at a constant temperature of 0°C, as the energy is used to break intermolecular bonds and convert the liquid water into solid ice.

5.Equilibrium: Once the water has completely frozen into ice cubes, the temperature of the ice-cube tray and the ice cubes will reach an equilibrium with the freezer's temperature, which is -8.00°C. At this point, the ice cubes are at the same temperature as the surrounding environment, indicating that the energy transfer process is complete.

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The system of equations that can be used to model this situation is:

1. h = 18 + 1.5t

2. h = 5 + 24t - 16t^2

1. The equation h = 18 + 1.5t represents the height of Graham above the ground as a function of time. Since Graham is being lifted by a cable at a constant speed of 1.5 ft/s, the height increases linearly with time.

2. The equation h = 5 + 24t - 16t^2 represents the height of the ball thrown by Hunter as a function of time. The initial height of the ball is 5 ft above the ground, and the ball's vertical motion is influenced by gravity, resulting in a quadratic function of time.

By solving this system of equations, one can determine the time at which Graham and the ball are at the same height, or any other relevant information about their positions at different times during the scenario.

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Answer:

so if it's 20 you should put 20 times 10 15 * 30 and 1.3 * 5 mg and if you put that milligrams in there it'll solve the destination I saw the white way you going so yeah just be careful at least you want to make the milligrams even a multimacy with the y i and replace it with the 14a

Hi there!

Answer:

Matter

Explanation:

To find the correct answer, you have to try all of the answers. Like below:

All cannot be created or destroyed.

This doesn't make sense.

Mass cannot be created or destroyed.

This may sound correct, but when you look at the big picture, this is wrong.

Matter cannot be created or destroyed.

This is correct because it is a saying created long ago and proven with experiments.

Galaxies cannot be created or destroyed.

This is wrong because new galaxies are being created everyday!

Stars cannot be created or destroyed.

This is wrong because like galaxies, new stars are being created everyday!

The distance between lines on the diffraction grating that produces a second-order maximum for 683-nm red light at an angle of 61.0° is approximately 771 nm.

To find the distance between lines on a diffraction grating that produces a second-order maximum for 683-nm red light at an angle of 61.0°, we can use the formula: d sinθ = mλ, where d is the distance between the lines on the grating, θ is the angle of diffraction, m is the order of the maximum (in this case, m = 2), and λ is the wavelength of the light. Rearranging this formula, we get: d = mλ/sinθ.
Plugging in the values given in the question, we get:
d = 2 * 683 nm / sin(61.0°)
d = 2 * 6.83 x 10^-7 m / sin(61.0°)
d ≈ 1.01 x 10^-6 m
Therefore, the distance between lines on the diffraction grating is approximately 1.01 micrometers. It's worth noting that diffraction gratings are used in many applications, such as spectroscopy and laser technology, and understanding their properties and behavior is important in these fields.
To find the distance between lines on a diffraction grating, we can use the formula for the grating equation:
nλ = d * sinθ
where n is the order of the maximum (in this case, 2 for the second-order maximum), λ is the wavelength of the light (683 nm), d is the distance between lines on the grating, and θ is the angle of the maximum (61.0°).
Rearrange the formula to solve for d:
d = nλ / sinθ
Plug in the given values:
d = (2 * 683 nm) / sin(61.0°)
d ≈ 771 nm
The distance between lines on the diffraction grating that produces a second-order maximum for 683-nm red light at an angle of 61.0° is approximately 771 nm.

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Answer:

The study of the human perception of sound is called psychoacoustics.

Explanation:

Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.

Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.

The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.

Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

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Answer:

Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects.

Answer:

all of the above????

Explanation:

my teacher told me.

Answer:

I believe that the answer is B) False

it's not necessary for a charged body actually to touch the ball of the electroscope for the leaves to diverge. When you touch the charged object with the ball, some electrons flow from the body to the ball and you can observe a deflection in the electroscope

An early scientific tool used to identify the presence of electric charge on a body is the electroscope. Due to the Coulomb electrostatic force acting on a test object, it can detect charge by the movement of the object. A substance's charge is proportional to its voltage.

The presence of an electric charge on a body can be found using a scientific tool called an electroscope. The versorium was the first electroscope with a pivoting needle, created in 1600 by British physician William Gilbert.

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In order to lift a bucket of concrete, you must pull up harder on the bucket than it pulls down on you is referred to as a false statement.

This is referred to as an external agent which is capable of influencing the motion of an object or body. It is also capable of changing the state of rest of a body and the unit in Newton.

When lifting the bucket, the total opposite forces and not only the weight which is what pulls it down must be overcome in other to lift the object or body successfully which is why false was chosen.

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Answer:

a

Explanation:

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Jason will end up rolling backward even if he goes through the motion of the ball but does not let go of it.

When Jason throws a ball horizontally while standing on roller skates, he rolls backward with a momentum that matches that of the ball. Jason will end up rolling backward even if he goes through the motion of the ball but does not let go of it. Jason's backward rolling movement is a result of Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction.

In this case, Jason's action of throwing the ball forward will result in an equal and opposite reaction that will propel him backward with the same momentum as the ball. Since Jason has the same momentum as that of the ball and he is not able to let go of it, the ball's momentum will change to that of Jason. The ball will have the same momentum as Jason, but it will have a different velocity as its direction changes due to the forces acting on it. Jason and the ball will move together at a constant speed, with Jason's backward movement balancing the forward movement of the ball.

Therefore, Jason will end up rolling backward even if he goes through the motion of the ball but does not let go of it.

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Answer:

The gravitational potential energy of a squirrel is 53.312 J.

Explanation:

We have,

Mass of a squirrel is 0.68 kg

It is placed at a height of 8 m above the ground.

It is required to find the gravitational potential energy of a squirrel. It is possessed by an object due to its position. Its formula is given by :

\(E=mgh\\\\E=0.68\times 9.8\times 8\\\\E=53.312\ J\)

So, the gravitational potential energy of a squirrel is 53.312 J.

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:

I'm pretty sure it's false

Explanation:

.

To parameterize the plane through the point (3, -4, 4) with the normal vector (-2, 4, 3) gives (14 + 2t - 4s)/3

Explanation:-

To parameterize the plane through the point (3, -4, 4) with the normal vector (-2, 4, 3),

we can use the point-normal form of the equation of a plane.

The equation of the plane is given by:

r · n = p · n

where, r is the position vector of any point on the plane, n is the normal vector to the plane,  and p is the position vector of a point on the plane.

Using the given point and normal vector,

we get:

(x, y, z) · (-2, 4, 3) = (3, -4, 4) · (-2, 4, 3)-2x + 4y + 3z

= -14

We can now express z in terms of x and y as follows:

z = (14 + 2x - 4y)/3

Using the parameter t,

we can write:

x = t and y = s

Substituting into the equation above,

we get:

z = (14 + 2t - 4s)/3

So, a parameterization of the plane is given by:

x = t and y = s and z

= (14 + 2t - 4s)/3

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The key observation enabled Edwin Hubble to prove this by observing individual Cepheid variable stars in Andromeda and applying the period-luminosity relation.

American astronomer Edwin Powell Hubble lived from November 20, 1889, through September 28, 1953. He was a significant contributor to the development of observational cosmology and extragalactic astronomy.

Hubble established that many objects formerly believed to be "nebulae" or clouds of gas and dust, were actually galaxies outside the Milky Way. He scaled galactic and extragalactic distances using the strong direct correlation between a classical Cepheid variable's luminosity and pulsation time, which was found in 1908 by Henrietta Swan Leavitt.

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Answer:

It can hurt you if you get a carpet burn if you rub against carpet really fast and hard. It can help by keeping your shoes from slipping around all the time when you walk/run. Same with bike tires.

Explanation:

Acceleration is mathematically defined as; ΔV/t.

Acceleration is defined as the ratio of the change in velocity to time. It is defined as the extent to which the velocity changes within a given time interval.

The question is incomplete so we can not arrive at the final answer. However, acceleration is mathematically defined as; ΔV/t.

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Answer: if the door knob is metal the static electricity will exit your body, but shock you in the process

Explanation:

Answer:  Fluorine (F) and chlorine (Cl) are two good choices.  See reasoning below.

Explanation:  Mendeleev arranged the elements in the periodic table in a manner that each group, or vertical column, contained elements that exhibited similar chemical properities.  He even reserved spaces for undiscovered elements when none of the known elements had properties similar to those above or below the known elements in a group.  An interesting event illustrates this property.  In December 2010, NASA announced an important new discovery that was to be broadcast on live TV, creating much speculation (e.g., UFO's are real and we'll see the aliens sequestered at Roswell!!!  I knew it.).  

The actual announcement:

"Dec. 2, 2010:  NASA-supported researchers have discovered the first known microorganism on Earth able to thrive and reproduce using the toxic chemical arsenic. The microorganism, which lives in California's Mono Lake, substitutes arsenic for phosphorus in the backbone of its DNA and other cellular components."

A look at the periodic table shows arsenic just below phosphorus, in the same group.   This was an unexpected find, but it might have been predicted with an understanding of how the elements are organized.  

Side note:  look how close silicon is to carbon.  Can there be a life form whose being is made up of silicon instead of carbon?  Sure . . . why not?  Maybe not on Earth, but . . . wait . . . did that marble statue just wink?