How does the ocean help in the battle against high atmospheric carbon levels?.

Answer: Sad y’all have holiday homework

The peak current through the inductor if the emf frequency is 100 Hz is 6.69 * 10^(-4) A

Steps to calculate the peak current through the inductor-

1. Calculate the inductive reactance (X_L) using the formula:

X_L = 2 * pi * f * L, where f is the frequency and L is the inductance.
X_L = 2 * pi * 100 Hz * 25.0 * 10^(-3) H ≈ 15.71 Ω

2. Calculate the peak current (I_L) using Ohm's law:

I_L = V_peak / X_L
I_L = 10.5 V / 15.71 Ω ≈ 0.67 A

The peak current through the inductor at a frequency of 100 Hz is approximately 0.67 A.

Part B: To find the peak current through the same inductor at an emf frequency of 100 kHz, follow these steps:

1. Calculate the inductive reactance (X_L) using the formula:

X_L = 2 * pi * f * L, where f is the frequency and L is the inductance.
X_L = 2 * pi * 100,000 Hz * 25.0 * 10^(-3) H ≈ 15,710 Ω

2. Calculate the peak current (I_L) using Ohm's law: I_L = V_peak / X_L
I_L = 10.5 V / 15,710 Ω ≈ 6.69 * 10^(-4) A

The peak current through the inductor at a frequency of 100 kHz is approximately 6.69 * 10^(-4) A or 0.67 mA.

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Kinetic energy formula is: 1/2 mv^2

M = mass

V = Velocity

So as kinetic energy increases, mass increases and velocity increases because mass and velocity are directly proportional to each other.

Radio, sound and gamma complete the paragraph from the given words respectively.

These are a type of electromagnetic radiation with wavelengths ranging from about one millimeter to 100 kilometers. They are used in a variety of applications such as radio and television broadcasting, mobile phones, and satellite communications

These are mechanical waves that travel through a medium, such as air or water. They are characterized by their wavelength, frequency, and amplitude, and are used in many applications such as music, speech, and sonar.

These are a type of electromagnetic radiation with the shortest wavelengths and highest frequencies in the electromagnetic spectrum. They are produced by radioactive decay and nuclear explosions, and are used in medical imaging and radiation therapy.

The amount of energy carried by a wave depends on the wavelength. Wavelength is normally measured in meters. Typical values are around 1 km, for radio waves, a few cm for sound waves, and millionths of a millimeter for gamma waves.

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The particle that is undergoing motion in a CRT is an electron. Electrons are subatomic particles that carry a negative charge. The mass of an electron is approximately 9.11 x 10^-31 kg, which is considered to be a negligible amount of mass. The charge of an electron is -1.6 x 10^-19 Coulombs.

In a CRT, electrons are emitted from a heated cathode and are accelerated by an electric field towards a fluorescent screen. As the electrons collide with the fluorescent screen, they produce light, which creates the images we see on the screen.
It is important to note that the motion of electrons in a CRT is controlled by the electromagnetic field, which is created by the voltage applied to the electrodes inside the CRT. This allows for precise control over the motion of electrons and, therefore, the images produced on the screen.
In conclusion, the particle undergoing motion in a CRT is the electron. It has a negligible mass and carries a negative charge. The motion of electrons in a CRT is controlled by the electromagnetic field, which allows for precise control over the images produced on the screen.

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The force exerted on the 0.04 kg arrow, which accelerated at 7,000 m/s² to reach a speed of 60.0 m/s, is 280 N.

To calculate the force exerted on the arrow, we can use Newton's second law of motion, which states that the force acting on an object is equal to its mass multiplied by its acceleration (F = m*a). In this case, the mass of the arrow (m) is 0.04 kg, and its acceleration (a) is 7,000 m/s².

Step 1: Identify the mass (m) and acceleration (a) of the arrow.
m = 0.04 kg
a = 7,000 m/s²

Step 2: Apply Newton's second law of motion (F = m*a) to calculate the force (F).
F = 0.04 kg * 7,000 m/s²

Step 3: Multiply the mass and acceleration values to obtain the force.
F = 280 N

Therefore, the force exerted on the arrow is 280 Newtons.

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Explanation:

First, convert terameters to meters.

234 Tm × (10¹² m / Tm) = 234×10¹² m

Now convert meters to nanometers.

234×10¹² m × (10⁹ nm / m) = 234×10²¹ nm

In scientific notation, that's 2.34×10²³ nm.

Answer:

25

Explanation:

hinli ako sure yan jok mali

Answer: Chemical Energy

Explanation:

Glucose and other food molecules are broken down by controlled stepwise oxidation to provide chemical energy in the form of ATP and NADH.

Answer:

Friction. Have a great day! Think positive <3

Answer: Friction

Explanation: It makes sense

Answer:

75 km per hour

Explanation:

Answer:

75 km/h

Explanation:

Speed = Distance/time. The car went 300km (distance) in 4 hours (time). 300/4 = 75. We divided by 4 to get the distance traveled per hour. Which is the speed. The speed is 75 km/h

In science, a hypothesis is a tentative explanation of an observation, while a scientific theory is a broader, well-tested explanation for a natural phenomenon backed by multiple lines of evidence.

In the scientific method, a hypothesis is an initial explanation or proposed solution to a specific observation or problem. It is often based on limited evidence or previous knowledge and serves as a starting point for further investigation. A hypothesis is testable and can be supported or refuted through experimentation or further observations. It represents a possible explanation that requires empirical evidence to validate or invalidate its validity.

On the other hand, a scientific theory is a well-established and comprehensive explanation for a natural phenomenon that has been extensively tested and supported by multiple lines of evidence. Unlike a hypothesis, a scientific theory goes beyond a single observation or experiment. It encompasses a broad range of observations, experimental results, and logical reasoning. A scientific theory provides a framework that can explain and predict various related phenomena. It is subject to ongoing scrutiny and refinement, but its validity and acceptance are based on its consistency with empirical evidence and its ability to make accurate predictions.

In summary, while a hypothesis is a tentative explanation of an observation, a scientific theory is a broader and well-tested explanation that is supported by multiple lines of evidence and can account for a range of related phenomena.

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Hard glass is a type of glass characterized by its high resistance to thermal and mechanical stress. It is commonly used in scientific and industrial applications. The components of glass can be classified into formers, intermediates, and modifiers.

Hard glass, also known as borosilicate glass, is a type of glass that possesses high resistance to thermal expansion and mechanical stress. It is composed mainly of silica (SiO2) and boron oxide (B2O3), which act as formers in the glass structure. The formers provide the basic framework of the glass and contribute to its high durability and thermal stability.

In addition to formers, glass can also contain intermediates and modifiers. Intermediates, such as alumina (Al2O3) and magnesia (MgO), help in reducing the melting point of the glass and improve its workability during the manufacturing process. Modifiers, such as sodium oxide (Na2O) and calcium oxide (CaO), alter the properties of the glass, such as its refractive index and chemical resistance.

By combining the right proportions of these components, glassmakers can produce glass with specific characteristics suitable for various applications, ranging from laboratory equipment and optical lenses to household items and industrial containers.

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Answer:

Explanation:

Given:

V₀ = 3.0 m/s

H = 5.2 m

__________

L - ?

Time for the ball to fall vertically:

H = g·t²/2;    ⇒    t = √ (2·H / g) = √ (2·5.2 / 9.8) ≈ 1.0 c

Move the ball horizontally:

L = V₀·t = 3.0·1.0 = 3.0 m

If a boy throws a ball with a horizontal velocity of 3.0 m/s, from a height of 5.2 m over the ground , then the horizontal displacement of the ball is 3.09 meters.

There are three equations of motion given by Newton,

v = u + at

S = ut + 1/2 × a × t²

v² - u² = 2 × a × s

As given in the problem If a boy throws a ball with a horizontal velocity of 3.0 m/s, from a height of 5.2 m over the ground

S = ut + 1/2 × a × t²

5.2 = 0 + 0.5 × 9.8 ×  t²

t² = 5.2 / 4.9

t = 1.03 seconds

The horizontal displacement of the ball = 1.03 × 3

                                                                  = 3.09 meters

Thus, the horizontal displacement of the ball is 3.09 meters.

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Because the current flowing through both bulbs in a series connection is equal, the power P = I2R states that the 60W bulb will expend more power and so be brighter than the 40W bulb (100W bulb).

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The equation for the turtle's position as a function of time is: x = 2t

The equation for the turtle's position as a function of time can be represented by the equation x = vt + x₀, where x is the turtle's position on the x-axis, v is its velocity, t is the time elapsed, and x₀ is the initial position of the turtle.

In this case, since the turtle is crawling along a straight line on the x-axis, its velocity will be constant. Let's say the turtle's velocity is 2 units per second and its initial position is at x = 0.

Using the equation x = vt + x₀, we can substitute the values: x = 2t + 0.

Simplifying the equation, we get x = 2t.

This means that the turtle's position on the x-axis is equal to 2 times the elapsed time. For example, if the turtle has been crawling for 5 seconds, its position would be x = 2(5) = 10 units.

In this case, x = 2t represents the equation for the turtle's position as a function of time.

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Typical cloud droplets are capable of effectively scattering all wavelengths of visible radiation more or less equally.

Cloud droplets are small water particles suspended in the atmosphere. When sunlight or visible radiation interacts with these droplets, they undergo scattering, which is the process of redirecting the light in various directions. Cloud droplets are effective scatterers of visible radiation because their size is comparable to the wavelength of visible light.

The phenomenon of scattering depends on the size of the scattering particles relative to the wavelength of light. When the size of the scattering particles is similar to the wavelength of light, the scattering is more efficient. In the case of cloud droplets, their sizes range from a few micrometers to tens of micrometers, which is on the order of the wavelength of visible light (approximately 400-700 nanometers).

Due to this size similarity, cloud droplets can effectively scatter all wavelengths of visible radiation more or less equally. This scattering process plays a crucial role in the formation of clouds and contributes to the white or gray appearance of clouds, as they scatter sunlight in all directions, diffusing and reflecting the light throughout the cloud layer.

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Answer:

A. 119kg

B.0.53m from head

Explanation:

A. Weight = 730+340.

=1170N

F= Wg

W = 1170/9.8

= 119kg

If x is distance from head to CG then 1.92–x is the other distance.

Moments must equal

470x = 330(1.89–x)

470x = 623.7 – 330x

1170x = 623.7

x = 0.53m from head

The given problem can be exemplified in the following diagram:

The weight of the bar is concentrated in its center of mass which is located in the middle of the longitude of the bar. We can add the total torques at the point where the pivot touches the bar and we get:

Here we have used momentum counter-clockwise as positive. Since the system is in equilibrium the sum of the torques must be equal to zero:

Now we solve the operations, we will use for the acceleration of gravity 9.8 meters per second squared:

Now we solve for the mass "M" first by subtracting 88.2Nm from both sides:

Now we divide both sides by -1.96:

Solving the operations we get:

Therefore, the mass of the bar is 45 kg.

Answer:

0.0001158443168226212 Celcius (significant digits? who cares.....) or about 0.00021 Fahrenheit

Explanation:

500g=0.5kg

PE=mgh

PE=(0.5)*(9.81)*(1.5)

PE=7.36J

3% of 7.36 is 0.22J is converted to heat

From there, it's tricky.

I just used a joules to celcius converter to get 0.0001158443168226212 degrees celcius or 0.00021 degrees fahrenheit rise in temp.

Answer:

The answer is "26.208 km"

Explanation:

Given value:

\(\to S= 2.6 \ \frac{m}{s}\\\\\to t= 2.8 \ hours\)

Formula:

\(d= st\\\\d= 2.6 \times 2.8 \times \frac{60 \times 60}{1000}\\\\d= 26.208\ km\)

Answer: b

Explanation:

p=mv

p=30

m=1500

rearrange to find v

(30)=(1500)(v)

v= 30/1500

v = 0.02 m/s

To calculate the total rotational inertia of the system, we need to consider the rotational inertia of each object and add them up. The rotational inertia of a disc is (1/2)mr^2 and the rotational inertia of a ring is (1/2)m(R^2 + r^2), where m is the mass of the object, r is the radius of the disc, and R is the radius of the ring.

For the two discs, the rotational inertia of each is (1/2)(2.0 kg)(0.5 m)^2 = 0.5 kgm^2. Therefore, the total rotational inertia of the discs is 2 x 0.5 kgm^2 = 1.0 kgm^2.

For the ring, we need to calculate the rotational inertia for the inner and outer radii separately and then add them together. For the inner radius, the rotational inertia is (1/2)(2.0 kg)(0.25 m)^2 = 0.125 kgm^2. For the outer radius, the rotational inertia is (1/2)(2.0 kg)(0.45 m)^2 = 0.405 kgm^2. Therefore, the total rotational inertia of the ring is 0.125 kgm^2 + 0.405 kgm^2 = 0.53 kgm^2.

Finally, to get the total rotational inertia of the system, we add the rotational inertia of the discs and the ring: 1.0 kgm^2 + 0.53 kgm^2 = 1.53 kgm^2.
To calculate the total rotational inertia of the system, we need to consider the rotational inertia of each object separately and then sum them up. The rotational inertia for a solid disc is given by the formula I = (1/2)MR^2, and for a ring, it is I = MR^2, where M is the mass and R is the radius.

For the two discs (with the same mass and radius):
I_disc = (1/2) * 2.0 kg * (0.5 m)^2 = 0.5 kg * 0.25 m^2 = 0.125 kg m^2 (each)

For the ring, we need to find the rotational inertia of the outer ring minus the inner ring:
I_outer = 2.0 kg * (0.45 m)^2 = 0.405 kg m^2
I_inner = 2.0 kg * (0.25 m)^2 = 0.125 kg m^2
I_ring = I_outer - I_inner = 0.405 kg m^2 - 0.125 kg m^2 = 0.28 kg m^2

Now, we add the rotational inertia of all three objects to get the total rotational inertia:
Total_rotational_inertia = 2 * I_disc + I_ring = 2 * 0.125 kg m^2 + 0.28 kg m^2 = 0.25 kg m^2 + 0.28 kg m^2 = 0.53 kg m^2

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The tοtal rοtatiοnal inertia οf the system is 0.3825 kg * m².

Tο calculate the tοtal rοtatiοnal inertia οf the system, we need tο find the individual rοtatiοnal inertias οf the ring and the twο discs and then add them tοgether.

The rοtatiοnal inertia οf a disc is given by the fοrmula:

I_disc = (1/2) * m * r²

where m is the mass οf the disc and r is its radius.

Given that the mass οf each οbject (disc and ring) is 2.0 kg and the radius οf the discs is 0.5 m, we can calculate the rοtatiοnal inertia οf each disc:

I_disc = (1/2) * 2.0 kg * (0.5 m)²

= 0.5 kg * 0.25 m²

= 0.125 kg * m²

Next, we need tο calculate the rοtatiοnal inertia οf the ring. The rοtatiοnal inertia οf a ring abοut its central axis is given by the fοrmula:

I_ring = (1/2) * m * (r_οuter² + r_inner²)

where m is the mass οf the ring, r_οuter is the οuter radius οf the ring, and r_inner is the inner radius οf the ring.

Given that the mass οf the ring is 2.0 kg, the οuter radius is 0.45 m, and the inner radius is 0.25 m, we can calculate the rοtatiοnal inertia οf the ring:

I_ring = (1/2) * 2.0 kg * (0.45 m)²+ (0.25 m)²

= 0.5 kg * (0.2025 m² + 0.0625 m²)

= 0.5 kg * 0.265 m²

= 0.1325 kg * m²

Finally, we can calculate the tοtal rοtatiοnal inertia οf the system by adding the individual inertias:

Tοtal rοtatiοnal inertia = I_disc + I_disc + I_ring

= 0.125 kg * m² + 0.125 kg * m² + 0.1325 kg * m²

= 0.3825 kg * m²

Therefοre, the tοtal rοtatiοnal inertia οf the system is 0.3825 kg * m².

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Answer: electrons

The part of an atom that has a negative charge are electrons. They float around the nucleus at a very fast speed. No one knows how quick they can travel. The answer is electrons.

Hope this helps you!

Answer:

Electrons

Explanation:

Electrons always have a negative charge.

Car tires are generally considered insulators because they have a very high resistance to the flow of electricity. Insulators are materials that do not allow electric current to flow through them easily.

A substance that conducts heat or energy poorly is known as an insulator. It is a material that has a high electrical resistance, which means that it resists the passage of electric current through it. In electrical circuits, insulators are used to isolate conductors from one another and stop electricity from flowing between them.

Since it prohibits electrons from moving easily through it and has a very high resistivity, the rubber used in car tires functions well as an insulator. This makes it difficult for electric current to pass through the tire, lowering the possibility of electric shock and helping to avoid static electricity buildup.

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