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We can see that Kepler's second law is ultimately due to A. the conservation of angular momentum.

Kepler's second law, also known as the law of equal areas, describes the motion of a planet or any object orbiting around a central body, such as the Sun. It states that a line connecting the planet to the Sun sweeps out equal areas in equal time intervals.

Angular momentum is a physical quantity that describes the rotational motion of an object or a system. According to the conservation of angular momentum, the total angular momentum of a system remains constant unless acted upon by an external torque.

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The complete question is:

Kepler's second law is ultimately due to _________.

A. the conservation of angular momentum

B. Einstein's theory of special relativity

C. Newton's third law

Answer:

Natural

Explanation:

Answer:

It's a Natural System

Explanation:

When the Solar System was formed Human didn't even exist. the planets clashed and a lot of changes happened to create earth and different planets.

The Mid-Atlantic Ridge spreads about 2-5 centimeters per year whereas the East Pacific Rise spreads about 6-16 centimeters every year.

According to the research, the East Pacific Rise is spreading faster than the Mid-Atlantic Ridge. The wide of red and orange parallel to the East Pacific Rise indicates that a large area of oceanic rocks is new and young. The Mid-Atlantic Ridge is a slow-spreading center. It spreads 2-5 centimeters every year and forms an ocean trench while on the other hand, the East Pacific Rise spreads faster because the East Pacific Rise spreads about 6-16 centimeters every year which is higher than the Mid-Atlantic Ridge.

So we can conclude that the East Pacific Rise is spreading faster as compared to the Mid-Atlantic Ridge.

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If a wave from one slit of a Young's double-slit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, a dark fringe is observed at that point.

In a Young's double-slit experiment, light passes through two closely spaced slits and produces an interference pattern on a screen. When light from one slit reaches a point on the screen one-half wavelength behind the light from the other slit, destructive interference occurs, resulting in a dark fringe at that point.

This is because the crest of one wave coincides with the trough of the other, causing them to cancel each other out. The interference pattern alternates between bright and dark fringes as the waves from the two slits interfere constructively or destructively at different points on the screen.

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The energy of the incident electron is approximately 4.396 keV.

To determine the energy of the incident electron, we can utilize the principles of conservation of momentum and conservation of kinetic energy in an elastic collision.

Initial radius of the incident electron's trajectory (r₁) = 0.00 cm

Final radius of the incident electron's trajectory (r₂) = 2.60 cm

Magnitude of the uniform magnetic field (B) = 0.0350 T

The magnetic field causes the charged particles (electrons) to move in circular paths due to the Lorentz force acting on them. We can use the following equation to relate the radius of the trajectory to the momentum and the magnetic field:

mv = qBr

m is the mass of the electron,

v is the velocity of the electron,

q is the charge of the electron, and

r is the radius of the trajectory.

Since both electrons have the same charge and mass, their velocities can be related as:

m₁v₁ = m₂v₂

To calculate the energy of the incident electron (E₁), we can use the formula:

E = (1/2)mv²

Let's proceed with the solution:

Since the collision is elastic, momentum is conserved:

m₁v₁ + m₂v₂ = 0

Also, since the radii of their trajectories are perpendicular to the magnetic field, their velocities can be related to the radii as:

v₁ = ωr₁

v₂ = ωr₂

where ω is the angular velocity.

Substituting these relationships into the momentum conservation equation, we get:

m₁ωr₁ + m₂ωr₂ = 0

Since m₁ = m₂ = m (same mass for both electrons) and ω is common, we can simplify the equation to:

mω(r₁ + r₂) = 0

From this equation, we find that (r₁ + r₂) = 0.

Now, let's calculate the energy of the incident electron using the formula:

E₁ = (1/2)m₁v₁²

Since v₁ = ωr₁, we can substitute the value of ωr₁ from the equation (r₁ + r₂) = 0:

E₁ = (1/2)m(ωr₁)²

E₁ = (1/2)m(ω²r₁²)

E₁ = (1/2)m(v₁/r₁)²

E₁ = (1/2)(mv₁²/r₁²)

Since v₁²/r₁² = B² (from the equation mv = qBr), we can substitute the value of B²:

E₁ = (1/2)B²m

Finally, let's substitute the given values to calculate the energy of the incident electron in keV (electron volt, a unit of energy):

E₁ = (1/2)(0.0350 T)²(9.11 × 10^-31 kg) * (1.6 × 10^-19 C) / (1.6 × 10^-16 J)

E₁ ≈ 4.396 keV

Therefore, the energy of the incident electron is approximately 4.396 keV.

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Answer:

39225J

Explanation:

Given parameters:

Mass of water  = 375grams of water

Change in temperature  = 25°C

Specific heat capacity of water  = 4.184J/g°C

Unknown:

Amount of heat absorbed  = ?

Solution:

To solve this problem, we use the expression below:

      H  = m c Ф  

H is the heat absorbed

m is the mass

c is the specific heat capacity

Ф is the change in temperature

  Insert the parameters and solve;

      H  = 375 x 4.184 x (25) = 39225J

Answer:

C. 1.42 s

Explanation:

Givens:

length = 0.5m

gravity = 9.807 m/s

Solve:

T = 2π√(L/g)

T = 2π√(0.5/9.807)

T = 2π√(0.0509)

T = 2π * 0.22579

T = 6.28318 * 0.22579

T = 1.418 ≈ 1.42s

The speed of Mike and his bike before hitting the ramp is 4.48 m/s.

The acceleration of Michael and his bike is determined by applying Newton's second law of motion as follows.

According this law, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

F = ma

a = F/m

where;

a = (456) / (136)

a = 3.35 m/s²

The speed of Mike and his bike before hitting the ramp is calculated as follows;

v² = u²  + 2as

where;

v² = 0 + 2(3.35)(3)

v² = 20.1

v = √20.1

v = 4.48 m/s

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The estimated rotational speed of the surface of Earth is 1000 miles per hour. The estimated circumference of Earth is 72000 miles. The estimated radius of Earth is approximately 11459.5 miles.

To estimate the rotational speed of the surface of Earth, we can calculate the time difference between Seattle and New York and the distance between them.

The time difference is 11:00 a.m. - 8:00 a.m. = 3 hours.

The distance between Seattle and New York is given as roughly 3000 miles.

Rotational speed = Distance / Time = 3000 miles / 3 hours = 1000 miles per hour.

Therefore, the estimated rotational speed of the surface of Earth is 1000 miles per hour.

To estimate the circumference of Earth, we can use the distance between Seattle and New York and the time difference.

The time difference of 3 hours corresponds to a time zone difference of approximately 1/24th of a full rotation around Earth.

Circumference of Earth = Distance / Time Difference = 3000 miles / (1/24) = 72000 miles.

Therefore, the estimated circumference of Earth is 72000 miles.

To estimate the radius of Earth, we can use the circumference calculated in the previous step and the formula for the circumference of a circle.

Circumference of Earth = 2π × Radius

72000 miles = 2π × Radius

Radius = 72000 miles / (2π) ≈ 11459.5 miles.

Therefore, the estimated radius of Earth is approximately 11459.5 miles.

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The plastic rod has a negative charge. The movement of electrons in the electroscope's metal leaves is a direct result of the attractive force between the negatively charged plastic rod and the electrons in the electroscope.

When a plastic rod rubbed with a piece of wool is brought near an electroscope, the leaves of the electroscope will diverge. This is due to the transfer of electrons from the wool to the plastic rod, which creates an excess of electrons on the plastic rod and a shortage of electrons on the wool. The excess electrons on the plastic rod cause it to become negatively charged, and the shortage of electrons on the wool cause it to become positively charged. When the negatively charge plastic rod is brought near the electroscope, it attracts the electrons in the electroscope's metal leaves, causing the electrons to move away from the positive terminal and towards the negatively charged plastic rod. This movement of electrons creates an electrostatic field, which pushes the metal leaves of the electroscope apart. This observation of the diverging leaves of the electroscope tells us that the plastic rod has a negative charge. The divergence of the leaves is a direct result of the attractive force between the negatively charged plastic rod and the electrons in the electroscope's metal leaves.

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Answer:

Displacement = \(13.45\ \text{miles}\)

Explanation:

Given that,

Michael walks 9 miles South to pick up his latte. He then drives 10 miles east to COHEA.

We need to find the displacement of Michael. We know that displacement is the shortest path covered by the object. In this case, it is given by :

\(d=\sqrt{10^2+9^2} \\\\d=13.45\ \text{miles}\)

So, the displacement of Michael is equal to \(13.45\ \text{miles}\).

Answer:

The mass of the other worker is 45 kg

Explanation:

The given parameters are;

The gravitational potential energy of one construction worker = The gravitational potential energy of the other construction worker

The mass of the lighter construction worker, m₁ = 90 kg

The height level of the lighter construction worker's location = h₁

The height level of the other construction worker's location = h₂ = 2·h₁

The gravitational potential energy, P.E.,  is given as follows;

P.E. = m·g·h

Where;

m = The mass of the object at height

g = The acceleration due to gravity

h = The height at which is located

Let P.E.₁ represent the gravitational potential energy of one construction worker and let P.E.₂ represent the gravitational potential energy of the other construction worker

We have;

P.E.₁ = P.E.₂

Therefore;

m₁·g·h₁ = m₂·g·h₂

h₂ = 2·h₁

We have;

m₁·g·h₁ = m₂·g·2·h₁

m₁ = 2·m₂

90 kg = 2 × m₂

m₂ = (90 kg)/2 = 45 kg

The mass of the other construction worker is 45 kg.

Answer: It’s kinetic energy

Explanation: when you move your hand or foot, your body has converted potential energy into kinetic energy.

Answer:

5

Explanation:

Using the formula

Number of images = 360/theta - 1

theta is the angle of inclination

Given

Theta = 60°

Substitute

Number of images = 360/60 -1

Number of images = 6-1

Number of images = 5

Hence the number of images formed is 5

Answer:

poopgshshsh

Explanation:

cacawusususu

No net force is experienced. To find the magnitude of the net gravitational force exerted by the two larger masses on the 60.6 kg mass, we can use the equation for gravitational force.

Gravitational force equation:

F = G * (m1 * m2) / r^2

Where F is the gravitational force, G is the universal gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between them.

In this case, m1 = 232 kg, m2 = 538 kg and r = 0.342 m.

So, F = G * (232 kg * 538 kg) / (0.342 m)^2

Plugging in the values, we get:

F = 6.672 x 10^-11 N*(m^2)/(kg^2) * (232 kg * 538 kg) / (0.342 m)^2

The magnitude of the net gravitational force exerted by the two larger masses on the 60.6 kg mass is 0.092 N.

To find the distance at which the 60.6 kg mass experiences a net force of zero, we can use the equation for the gravitational force between two masses. Since the force is inversely proportional to the square of the distance between the masses, we can set the force to zero and solve for the distance.

F = G * (232 kg * 60.6 kg) / (r)^2 = 0

r = √((232 kg * 60.6 kg) / (G))

r = √((232 * 60.6) / (6.672 * 10^-11))

r = 2.36*10^-5 m

At this distance, the 60.6 kg mass experiences no net force from the two larger masses, as the gravitational force exerted by the 232 kg mass balances out the gravitational force exerted by the 538 kg mass.

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By analyzing the Sun's position information at two separate sites on the earth's surface, Eratosthenes, a Greek library in Alexandria, Egypt, discovered the moon's gravity in the third century BCE.

The solstice marks the time of year when the Sun appears to be at either its lowest or highest point in the sky. Because of this, ancients came to refer to this day as one when the Sun popped up to stand still. The word solstice is derived from the Latin words sol, which means "Sun," and sistere, which means "To Stand Still."

The Earth's axis tilts most nearly toward the sun twice a year during what are known as the solstices. The longest day is experienced in the hemisphere that is inclined closest toward our star.

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Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

There are 7 atoms of bromine (br) are present in this molecule, 4pbr₃.4pbr3 is divided into 4 pb atoms and 7 bromine atoms.

The atom consists of matter that may be split without releasing electrical charges.

It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.

In the nucleus, proton and the neutron is existing. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.

4pbr₃, consists 4 atoms of pb and 7 atoms of bromine.

Hence.there are 7 atoms of bromine (br) are present in this molecule, 4pbr₃.

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At 5:00 on a clock, the minute hand points directly at the 12 o'clock position. So, the angular position of the minute hand at 5:00 is (5/6)π radians.

To determine the angular position in radians, we need to calculate the angle formed by the minute hand with respect to the 12 o'clock position.

In a clock, the full circle is divided into 12 equal parts, representing the hours. Since 5:00 corresponds to the 5th hour, we can divide the circle into 12 parts and find that the 5th hour is at 5/12th of the circle.

To convert this fraction to radians, we multiply it by 2π (the number of radians in a full circle). Therefore, the angular position of the minute hand at 5:00 is:

Angular position = (5/12) * 2π

Simplifying this expression, we find:

Angular position = (5/6)π radians

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The instantaneous acceleration of the object at time = 6 seconds is 2 m/s²

This is simply defined as the ratio of change in velocity during a given time interval.

On a velocity-time graph, the instantanous acceleration is equal to the slope.

From the question given, the following data were obtained:

Instantaneous acceleration = slope

But,

Slope = Change in velocity / Change in time

Thus,

Instantaneous acceleration = Change in velocity / Change in time

Instantaneous acceleration = 1 / 0.5

Instantaneous acceleration = 2 m/s²

Thus, the instantaneous acceleration at time = 6 s is 2 m/s²

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Answer:

No

Explanation:

Because it is mass ÷ volume and its not an actual model

Answer:

p(momentum) = mass(kg) x velocity (m/s)

The ability to see the world in three dimensions is called depth perception. It is the visual ability to perceive the relative distance of objects in space and to see them in three dimensions.

Depth perception is an important aspect of vision that allows us to accurately judge distances, perceive spatial relationships, and interact with our environment.

It is the result of the brain processing information from both eyes to create a single, three-dimensional image.

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Here is a screenshot of the answer:

(The second sentence is incorrect because the triangle should be a right triangle, not an isosceles one. The fifth sentence is incorrect because we use M cos g to calculate the horizontal component.)

Conduction is not an important process of energy transport inside the Sun. So the correct answer is option C.

The high temperature and density of the solar interior cause it to behave like a plasma, a state of matter in which electrons are stripped from atoms, resulting in a highly conductive fluid. Convection and radiation are the primary means by which energy is transported from the core of the Sun to its surface. Convection involves the transfer of heat through the motion of fluid, while radiation involves the transfer of energy through electromagnetic waves. The convective zone is the outermost layer of the solar interior, and it plays a crucial role in the transport of energy. Hence option C is correct.

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When an object is 100 times colder than room temperature, molecular hydrogen in interstellar space would behave like a wave rather than a particle.

Hydrogen in the interstellar medium is in a gas phase, with a temperature of around 10 to 100 K. At this temperature, the thermal energy of the hydrogen molecules is low, which means the particles move slowly and have a low kinetic energy.According to quantum mechanics, when the wavelength of the particle is larger than the distance between the particles, the wave nature of the particle dominates. Because hydrogen molecules in interstellar space have a very low kinetic energy, their wavelengths are longer than the distances between them. As a result, hydrogen in interstellar space behaves more like a wave than a particle.

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The initial moments after the Big Bang and the current universe have a few things in common like Expansion; Radiation; Structure formation; etc.

Expansion: The universe has been expanding since the Big Bang, and this expansion is still happening. The initial moments after the Big Bang were characterized by a period of rapid inflation, and this expansion has continued to shape the structure of the universe we see today.

Radiation: The universe was filled with intense radiation in the initial moments after the Big Bang, and this radiation still exists in the form of the cosmic microwave background (CMB) radiation.

This radiation is thought to have been produced about 380,000 years after the Big Bang and has been traveling through space ever since, providing us with valuable information about the early universe.

Formation of structure: The initial moments after the Big Bang set the stage for the formation of the large-scale structure of the universe we observe today, such as galaxies, stars, and planets. The tiny fluctuations in the density of matter in the early universe were amplified by gravitational attraction over time, leading to the formation of these structures.

However, there are also many differences between the early universe and the universe as it exists now. For example, the universe was much hotter and denser in the early moments after the Big Bang, and there were no stars or galaxies yet.

The universe has also undergone many complex physical processes over billions of years, such as the formation of black holes and the evolution of stars, that were not present in the early universe.

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