The energy that is stored in
chemical composition of matter is....
a. Potential Energy
b. Elastic Enersy
c. Chemical Energy
d Mechaneal Energy

The Kuiper belt is made up of planetesimals rich in ice that evolved outside of Neptune's orbit and the majority of the Kuiper belt's original mass was lost during the planetary migration events, and orbital resonances with jovian planets gave the belt its current shape.

Hence, The Kuiper belt is made up of planetesimals rich in ice that evolved outside of Neptune's orbit and the majority of the Kuiper belt's original mass was lost during the planetary migration events, and orbital resonances with jovian planets gave the belt its current shape.

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The speed of the cyclist at the bottom of the slope is approximately 24.24 m/s.

The cyclist is coasting down a slope with a length of 420 m and a height of 30 m.

The combined mass of the cyclist and her bicycle is 70 kg.

There is a steady drag force due to air resistance, which is 15 N.

To find the speed of the cyclist at the bottom of the slope, we can use the principle of conservation of mechanical energy.

The total mechanical energy of the system (cyclist and bicycle) remains constant throughout the motion.

The mechanical energy is the sum of the kinetic energy and the potential energy.

At the top of the slope, the cyclist has only potential energy, which can be calculated using the formula:

Potential energy = mass * acceleration due to gravity * height

Potential energy = 70 kg * 9.8 m/s^2 * 30 m
Potential energy = 20580 J

As the cyclist starts coasting down the slope, the potential energy is converted into kinetic energy.

At the bottom of the slope, the cyclist has only kinetic energy.

The kinetic energy can be calculated using the formula:

Kinetic energy = 0.5 * mass * velocity^2

We can equate the initial potential energy to the final kinetic energy:

20580 J = 0.5 * 70 kg * velocity^2

Simplifying the equation:

velocity^2 = (20580 J * 2) / (0.5 * 70 kg)
velocity^2 = 588 J / kg
velocity^2 = 588 m^2/s^2

Taking the square root of both sides to solve for velocity:

velocity = sqrt(588 m^2/s^2)
velocity ≈ 24.24 m/s
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Answer:

a moderate base

Explanation:

Milk of magnesia is popularly known as magnesium hydroxide. Magnesium hydroxide Mg(OH)₂ is used as an anti-acid in toothpaste and medically as a mild laxative.

Its pH values range between 10- 11 on the pH scale.

A solution with pH value of 7 is neutral(i.e. neither acidic nor basic.

A pH value which is less than 7 is acidic while a pH value greater than 7 is basic.

For a pH value between 12 -14 on the pH scale is said to be a strong base.

Since Milk of magnesia Mg(OH)₂ pH values ranges between 10- 11 on the pH scale, it is known to be moderately basic.

The correct answer is D. All of the above.

When you first start an exercise program, it is important to take certain precautions to ensure your safety and allow your body to adjust to the new physical activity.

A. Checking with your doctor: Before beginning any exercise program, especially if you have pre-existing health conditions or are at high risk for certain injuries, it is advisable to consult with your doctor. They can provide valuable guidance based on your individual health status and help determine if there are any specific exercises or modifications you should consider.

B. Starting slowly: It is crucial to start your exercise program at a manageable pace. Gradually increasing the intensity and duration of your workouts allows your body to adapt and reduces the risk of injury. Starting slowly also helps you gauge your fitness level and establish a solid foundation for future progress.

C. Exercising for shorter periods of time: Initially, it is recommended to exercise for shorter durations and gradually increase the duration as your fitness improves. This approach allows your body to acclimate to the physical demands of exercise and minimizes the risk of overexertion or exhaustion.

By following these guidelines, you prioritize your safety and set yourself up for long-term success in your exercise program. Consulting with your doctor ensures that you are aware of any specific considerations related to your health. Starting slowly and gradually increasing the intensity and duration of your workouts allows your body to adapt, preventing injuries and promoting sustainable progress. Exercising for shorter periods initially helps you build stamina and endurance over time. Therefore, all of the above options are important steps to take when starting an exercise program.

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Answer:

True.

Explanation:

Total internal reflection is bound to occur when light travels from dense medium to less dense.

From the table given in the question above, we obtained:

Refractive Index of Crown glass = 1.52

Refractive Index of Asphalt = 1.635

From the above, Crown glass has a lower refractive index when compared to Asphalt. This means that Crown glass is less dense than Asphalt.

Therefore, total internal reflection will not occur when light travels from Crown glass to Asphalt because Crown glass is less dense than Asphalt.

Answer:The buildup of thermal energy in a collapsing gas cloud leads to thermal pressure that can halt the gravitational collapse. What must happen for the gravitational collapse to continue? The cloud must radiate away some of its thermal energy.

Explanation:

Answer:

12.6 s

Explanation:

y =  1/2 at^2

780.1 =  1/2 ( 9.81) t^2           answer can only have 3 s.d. due to the 9.81

t = 12.6 s

Answer:

Asking a question

Research existing sources

Define an hypothesis

Design and conduct a study

Draw conclusion

Report result.

Explanation:

Scientific study simply means establishing the existence or proving the veracity of an hypothesis, hence making it a fact. A scientific study follows an orders set of procedure;

Asking a question is the first step as this is what prompts the research, question usually stems after making an observation.

The a observation made and question asked will lead to making research on the observed phenomenon, this is to check if such question has been asked in the past and maybe any scientific study as been carried out in the past.

To make research further, an hypothesis is defined in a bid to find more evidence to support one's observation through experiment.

Study design and implementation is next as the type of study to be embarked upon will determine which type of design preparation and study pattern to deploy.

Conclusion a d report of observations made are the last part of a scientific study which is key as all outcomes of the study should be adequately detailed in an understandable format while also ensuring reproducibility.

Answer:

1. The three main acidic gases responsible for lowering the pH of rainwater are non-metal oxides produced by the burning of fossil fuels like coal, oil and natural gas. Sulfur dioxide is produced when fossil fuels containing sulfur impurities are burned.

2. A great way to reduce acid rain is to produce energy without using fossil fuels. Instead, people can use renewable energy sources, such as solar and wind power. Renewable energy sources help reduce acid rain because they produce much less pollution.

3. The pH scale is logarithmic, meaning that an increase or decrease of an integer value changes the concentration by a tenfold. For example, a pH of 3 is ten times more acidic than a pH of 4.

Answer:

Motion is the action of moving, and acceleration is the action of moving faster or increasing speed. I guess you could say they are both in a state of motion or moving.

Explanation:

The correct answer is E

"Neve/Firn."

Neve/Firn is granular snow that compacts and recrystallizes over time to form glacial ice.

The correct answer is "Neve/Firn."

Neve or firn is the granular snow that accumulates over time and undergoes compaction and recrystallization.

As more snow accumulates on top, the underlying neve/firn becomes more compacted, and the air between the snow grains is forced out.

This process causes the neve/firn to become denser and transform into glacial ice.

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Answer:

a. The moment of the 4 N force is 16 N·m clockwise

b. The moment of the 6 N force is 12 N·m anticlockwise

Explanation:

In the figure, we have;

The distance from the point 'O', to the 6 N force = 2 m

The position of the 6 N force relative to the point 'O' = To the left of 'O'

The distance from the point 'O', to the 4 N force = 4 m

The position of the 4 N force relative to the point 'O' = To the right of 'O'

a. The moment of a force about a point, M = The force, F × The perpendicular distance of the force from the point

a. The moment of the 4 N force = 4 N × 4 m = 16 N·m clockwise

b. The moment of the 6 N force = 6 N × 2 m = 12 N·m anticlockwise.

Answer:

El equilibrio térmico se alcanzará a los 152ºC.

Explanation:

Dado que un ladrillo de 2kg que se encuentra a 200º c, se sumerge en 5 kg de agua a 32º, para determinar a qué temperatura se alcanza el equilibrio térmico se debe realizar el siguiente cálculo:

2+5 = 7

(200 x 5 + 32 x 2) / 7 = X

1064 / 7 = X

152 = X

Por lo tanto, el equilibrio térmico se alcanzará a los 152ºC.

The force constant of the spring is 1442 N/m, the mass of the fish that stretches the spring 5.50 cm is 2.13 kg, and the distance between the half-kilogram marks on the scale is 3.4 mm.

a) To find the force constant of the spring, we can use Hooke's Law, which states that the force exerted by a spring is directly proportional to the displacement from its equilibrium position. The equation for Hooke's Law is\(F = -k * x\), where F is the force, k is the force constant, and x is the displacement.

we can rearrange Hooke's Law to solve for the force constant: \(k = -F / x.\) Plugging in the values, we have \(k = -(12.0 kg * 9.8 m/s^2) / 0.082 m\). Calculating this, we find that the force constant of the spring is approximately 1442 N/m.

b) we can again use Hooke's Law. Rearranging the equation to solve for mass, we have \(m = -F / (k * x)\). Plugging in the values, we have \(m = -(0.082 m * 1442 N/m) / 0.055 m\). Calculating this, we find that the mass of the fish is approximately 2.13 kg.

c) we need to consider that the force exerted by the spring is directly proportional to the displacement. Since the force constant is known (1442 N/m), we can use Hooke's Law to relate the displacement to the force. Considering a 0.5 kg increment in mass, we have\(F = -k * x\). Rearranging the equation, we find \(x = -F / k = -(0.5 kg * 9.8 m/s^2) / 1442 N/m\). Calculating this, we find that the displacement (or distance between the half-kilogram marks) is approximately 0.0034 m or 3.4 mm.

Therefore, the force constant of the spring is 1442 N/m, the mass of the fish that stretches the spring 5.50 cm is 2.13 kg, and the distance between the half-kilogram marks on the scale is 3.4 mm.


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Answer:

Anxiety. Depression. Hypoxia, or lack of oxygen supply. Hyperalgesia, or sensitivity to pain.

Answer:

germ cleaning

and getting up cooking grease

Explanation:

Answer:

Approximately \(5.76 \times 10^{-18}\; {\rm J}\) (by the external force that moved the electron.)

Explanation:

Let \(q\) denote the magnitude of a charge in an electric field of magnitude \(E\). The magnitude of the electrostatic force on that charge would be:

\(F = q\, E\).

In the electric field in this question, the magnitude of the electric force on the electron would be:

\(\begin{aligned}F &= q\, E \\ &= 1.6 \times 10^{-19}\; {\rm C} \times 600\; {\rm N \cdot C^{-1}} \\ &= 9.6 \times 10^{-17} \; {\rm N}\end{aligned}\).

Moving the electron to the other plate would thus require an external force of \(9.6 \times 10^{-17}\; {\rm N}\).

This force needs to be exerted over a distance of \(6.0\; {\rm cm}\) (\(6.0 \times 10^{-2}\; {\rm m}\).) The direction of the motion is the same direction as that of the external force. Thus, the work that needs to be done would be:

\(\begin{aligned}W &= F\, s \\ &\approx 9.6 \times 10^{-17}\; {\rm N} \times 6.0 \times 10^{-2}\; {\rm m} \\ &\approx 5.76 \times 10^{-18}\; {\rm J}\end{aligned}\).

By multiplying the mass by the square of the distance from the axis of rotation (r2), one can determine the moment of inertia.

The center of mass of the two body system (when both masses are equal) is given by ,

x cm =x1 +x2 /2 ,

where  x1 ,x2 are the distances of masses from origin respectively , let the first mass is at origin then , x1 =0  and  x2 =d

where d= distance between two masses ,the masses are equal  therefore center of mass  will be,

 x cm =0+d/2=d/2 ,

the location of CM is at the midpoint between the cube and sphere .

The tendency of an object to maintain equilibrium or a constant rate of rotation is known as moment of inertia. The torque needed to shift this state increases as the moment of inertia increases. The function of torque in rotational motion is analogous to that of force in linear motion.

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The red (660 nm) component of light emerges from the prism at an angle of 0.597° and the violet (410 nm) component of light emerges from the prism at an angle of 0.589°.

a) The angle at which the red (660 nm) component of light emerges from the prism can be calculated using Snell's law. The incident angle of the beam is 45.0° and the index of refraction of crown glass for this wavelength is 1.512.

sin i / sin r = n

where i is the incident angle, r is the angle of refraction, and n is the index of refraction.

sin i = n sin r

sin 45.0° = 1.512 sin r

r =  sin⁻¹ (sin 45.0° / 1.512)

r = 0.597°

Therefore, the red component of light emerges from the prism at an angle of 0.597°.

b) The angle at which the violet (410 nm) component of light emerges from the prism can be calculated in a similar manner. The incident angle of the beam is still 45.0°, but the index of refraction of crown glass for this wavelength is 1.530.

sin i / sin r = n

where i is the incident angle, r is the angle of refraction, and n is the index of refraction.

sin i = n sin r

sin 45.0° = 1.530 sin r

r = sin⁻¹ (sin 45.0° / 1.530)

r = 0.589°

Therefore, the violet component of light emerges from the prism at an angle of 0.589°.

In summary, the red light and violet light emerge at angles 0.597° and 0.589° respectively from the prism.

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The true statement about the reference point for determining motion is that "it is stationary"

WHAT IS A REFERENCE POINT:

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B) energy. An important underlying feature of hydraulic devices is the conservation of energy.

This is achieved through the transfer of energy from one point to another using a pressurized fluid, usually oil or water. The fluid is used to transmit force, and the conservation of energy ensures that the force applied at one end of the system is transferred to the other end without any loss of energy. This makes hydraulic devices highly efficient and effective for a wide range of applications, from construction machinery to aerospace engineering. Liquid fluid power is used by hydraulic machines to do operations. Heavy-duty construction vehicles are a typical illustration. Hydraulic fluid is pumped to numerous hydraulic motors and hydraulic cylinders located all around the machine in this type of machine and is pressurised in accordance with the resistance present.

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If both masses double in size and their separation between them triples. 13..33 N will be the force between the masses.

Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.

Gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.

Given data:

The gravitational force = 30 N

Mass 1 =m₁

Mass 2=m₂

Distance between charges = R

Condition given:

Mass 1 = 2m₁

Mass 2= 2m₂

Distance  between charges = 3R

\(\rm F = \frac{Gm_1m_2}{R^2}\)

Case 2;

\(\rm F'=\frac{G(2m_1)(2m_2)}{(3R)^2} \\\\ F'=\frac{4}{9} \frac{Gm_1m_2}{R^2} \\\\ F'=\frac{4}{9} F \\\\ F'=\frac{4}{9} \times 30 \\\\ F'=13.33 \ N\)

Hence, the forces between the masses will be 13..33 N.

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Answer:

t = 11.1 hours

Explanation:

The question says that, "A mobile advances at 20 m / s and travels a distance of 800 km. Determine the time in hours you use".

Given that,

Speed of a mobile, v = 20 m/s = 72 km/h

Distance, d = 800 km

We know that,

Speed = distance/time

So,

\(t=\dfrac{d}{v}\\\\t=\dfrac{800}{72}\\\\t=11.1\ h\)

So, it will take 11.1 hours.

The energy transfered to the hand of the watch is 0.05 J.

Energy is the ability or the capacity to perform work.

To calculate the energy transfered to the hand, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the energy transfered is 0.05 J.

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ushi wygunu geygo sieta?

Answer:

0.60N along the line tangent to the circle

Answer:

A is the answer

Explanation:

Just got finished with the quiz! Hope this helps <3

We see different phases of the moon each night from our position on Earth because the amount of sunlight reflected from the moon's surface changes each night.

As the moon orbits Earth, its position relative to the Sun changes, causing the illuminated portion of its surface that is visible from Earth to change.

This results in the various moon phases we observe, such as the new moon, crescent, half, gibbous, and full moon.

In summary, the changing phases of the moon are caused by the changing amount of sunlight reflected from the moon's surface as it orbits Earth and its position relative to the Sun changes.

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The energy required to make one He-3 nucleus is 3.27 MeV.

The formation of He-3 can occur through several nuclear reactions, including the fusion of two deuterium nuclei, the decay of tritium, and the capture of a neutron by He-3. The energy required to make one He-3 nucleus varies depending on the specific reaction that is taking place.

However, the fusion of two deuterium nuclei, which produces He-3 and a proton, is one of the most common and energy-efficient reactions used to create He-3. This reaction requires an energy input of 3.27 MeV (mega-electron volts) to overcome the electrostatic repulsion between the positively charged deuterium nuclei and bring them close enough together for the strong nuclear force to take over and fuse the nuclei.

Regarding the balance of nuclear equations, all nuclear reactions must obey the laws of conservation of mass and conservation of charge. This means that the sum of the mass numbers and the sum of the atomic numbers (proton numbers) must be equal on both sides of the equation. Therefore, nuclear equations must be balanced to ensure that the same number of positive charges and the same mass are present on both sides of the equation.

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