Given the equation p2 = a3, what is the orbital period, in days, for the planet venus? (venus is located 0.72 au from the sun?) 72 days 225 days 500 days 5,375 days

To balance a 0.45 N weight 0.30 m to the right of the center, a 0.20 N weight must be placed 0.15 m to the left of the center.

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Explanation:

Δy = v₀ t + ½ at²

Δy = (0 m/s) (7.0 s) + ½ (-9.8 m/s²)(7.0s)²

= -34.3

Answer:

Explanation:

this will help

The change in internal energy of the system for Part A is 0 J. The change in internal energy of the system for Part B is -552 J. The change in internal energy of the system for Part C is approximately 2461.36 J.

Part A:

The change in the internal energy of the system can be calculated using the first law of thermodynamics, which states that the change in internal energy is equal to the heat absorbed by the system minus the work done by the system.

In this case, the system absorbs 56 J of heat and does 56 J of work. Since the heat absorbed and work done are equal, the net change in internal energy would be zero. Therefore, the change in internal energy of the system for Part A is 0 J.

Part B:

Similarly, for Part B, the system absorbs 135 J of heat and does 687 J of work. Applying the first law of thermodynamics, the change in internal energy is calculated as follows:

Change in internal energy = Heat absorbed - Work done

Change in internal energy = 135 J - 687 J

Change in internal energy = -552 J

The change in internal energy of the system for Part B is -552 J.

Part C:

In Part C, the system evolves 290 cal (calories) of heat and has 1.25 kJ (kilojoules) of work done on it. Since the units of heat and work are different, they need to be converted to the same unit before calculating the change in internal energy.

1 cal = 4.184 J (approximately)

1 kJ = 1000 J

Converting the units:

Heat absorbed = 290 cal x 4.184 J/cal ≈ 1211.36 J

Work done = 1.25 kJ x 1000 J/kJ = 1250 J

Change in internal energy = Heat absorbed + Work done

Change in internal energy = 1211.36 J + 1250 J

Change in internal energy ≈ 2461.36 J

The change in internal energy of the system is 2461.36 J.

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Transparent objects allow all the light to pass through them, translucent ones allow partial light to pass, whereas opaque ones allow no light to pass through.

The magnitude of the ant's displacement relative to its original position is 43 cm.

Magnitude is a measure of the size or strength of something. It is usually expressed as a numerical value, such as a number on a scale. Magnitude can refer to physical and non-physical qualities, such as the size of a building or the intensity of an emotion. For example, an earthquake can be measured in terms of its magnitude, which is the amount of energy released during the earthquake. Magnitude can also refer to the brightness of a star, or the size of a hurricane. In astronomy, magnitude is used to measure the brightness of a star or other celestial object.

This is because the ant traveled 3.0 x 101 cm eastward, then 25 cm northward, and then 15 cm westward. The total magnitude of the displacement is the sum of the magnitudes of the individual displacements, which is 3.0 x 101 + 25 + 15
= 43 cm.

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The higher size growth rate of the planetesimals was mainly caused by their stronger gravity pulling in more materials.

Planetesimals are like planets, except much smaller and not necessarily round. A planetesimal is formed from rock, dust, and other materials. Planetesimals are thought to exist in protoplanetary disks and debris disks.

According to the Chamberlin–Moulton planetesimal hypothesis, which was proposed in 1905, an unknown star passed close enough to the Sun early in its life to cause tidal bulges to form on its surface, which in turn caused material to be ejected repeatedly from the Sun. Most of the material would have fallen back, but part of it would remain in orbit. This orbiting material would cool and condense into planetesimals.

The bigger the planetesimals, the stronger the gravity. As a result, they grow larger more quickly.

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Compression is the term for the reduction in volume that stress causes in any object or material. Living systems as well as solids, liquids, and gases may all endure compression. For example, the pressure of the atmosphere at sea level is the standard, or reference, for most land animals, but the standard for deep-sea fishes and similar specialized forms is the normal pressure of their environment. In the latter, compression is measured against the system's volume at the standard pressure to which an organism is subjected.

The thickness is not practically feasible or useful, so in reality, the electrolyte thickness would be much smaller, typically in the range of microns to millimeters.

The absolute minimum possible functional electrolyte thickness for a SOFC (Solid Oxide Fuel Cell) can be calculated using the dielectric breakdown strength of the electrolyte, which is 10^8 V/m. Since the fuel cell voltages are typically around 1V or less, the minimum possible functional electrolyte thickness can be found using the formula:

Electrolyte thickness = Dielectric breakdown strength / Fuel cell voltage

Plugging in the values, we get:

Electrolyte thickness = 10^8 V/m / 1V
Electrolyte thickness = 10^8 m

Therefore, the absolute minimum possible functional electrolyte thickness for a SOFC would be 10^8 meters or 100,000 kilometers. However, this thickness is not practically feasible or useful, so in reality, the electrolyte thickness would be much smaller, typically in the range of microns to millimeters.

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Answer:

4 A

Explanation:

From the question given above, the following data were obtained:

Voltage (V) = 12 V

Resistance (R) = 3 Ω

Current (I) =?

From ohm's law,

Voltage (V) = Current (I) × Resistance (R)

V = IR

With the above formula, we can obtain the current flowing in the circuit as illustrated below:

Voltage (V) = 12 V

Resistance (R) = 3 Ω

Current (I) =?

V = IR

12 = I × 3

Divide both side by 3

I = 12/3

I = 4 A

Therefore, the current flowing in the circuit is 4 A.

The total potential energy that a unit charge would have if it were located anywhere in space is known as electric potential energy.

v = kq /r

Here,

the Coulomb constant, k

Q = Charge.

If r = Distance,

If we change the equation to determine the distance,

Q = vr / k

= (100)(5 × (10)-²) / 9 × (10)9

Q = 5.55 × (10)-10 c

Now, the charge density value is equal to the charge on the sphere's surface area, which is

r = Q / A

r = 1.76 × (10)-8 C / m².

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Answer:

D

Explanation:

light moves in a straight line (sorry if I'm wrong)

If a  student wants to draw a diagram to show the path of a light wave would be an arrow starting at the wave source and pointing away from it , therefore the correct answer is option D.

Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.

A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals.

If a  student wants to draw a diagram to show the path of a light wave would be an arrow starting at the wave source and pointing away from it, therefore the correct answer is option D.

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If you placed a radio in a bell jar and removed all the air  the sound can not propagate, we can not hear the sound and  speaker will not move.

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Answer:

b) Concave mirror

Explanation:

The type of mirror being used in the image is concave mirror. Dentist always use concave mirror to see patient's teeth. Hence, the option (b) is correct answer.

Answer: b or

✔ concave

Explanation:

Answer:

Energy transfer, I believe.

Explanation:

When the energy moves from one point to the other, this is known as energy transfer. Hence, option A is correct.

The capacity to perform work is known as energy in physics. Potential, kinematic, heat, electromagnetic, chemical, nuclear, and other different types are all possible. As energy is transferred of one body to another, there is also heat and work. Energy is always categorized after it has been transported based on its nature. As a result, heat transfer may result in thermal energy, while labor done may result in mechanical energy.

Motion is a common characteristic of all energy types. Whenever a body is in motion, for instance, it contains energy. Even when at rest, a tensioned object like a springs or bow has the ability to move; this is due to the structure of the object, which carries potential energy.

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Answer:

Explanation:

Let lift force F be created by propellers at angle of Ф with the horizontal .

The vertical component of this force will balance the weight of helicopter and horizontal component will balance the air resistance .

F sinФ = mg = 2750 x 9.8 = 26950 N

F cosФ = 7510 N

Squaring and adding ,

F² = 26950² + 7510²

= 726302500 + 56400100

= 782702600

F = 27976.82 N .

Answer:

Explanation:

Helium, if released into the atmosphere, will continue to rise until it disappears into space, rendering it the only substance that cannot be recovered.

This statement is incorrect. The correct form of solid waste recycling in which the energy value of combustible waste materials is recovered is called "waste-to-energy" or "energy recovery."

Composting is a different form of solid waste recycling that involves the biological decomposition of organic materials to create a nutrient-rich soil amendment.

Here is a step-by-step explanation of the correct process:

Waste-to-energy (WTE) facilities receive solid waste, typically municipal solid waste, which is then sorted to remove recyclable materials such as plastics, metals, and paper.

The remaining waste is then burned in a specially designed furnace, called an incinerator, at high temperatures to create steam.

The steam drives turbines, which generate electricity that can be sold to the grid.

In addition to electricity generation, WTE facilities also recover the heat generated by the incineration process to provide heat to nearby buildings or industries.

The remaining ash from the incineration process can be used as a construction material, such as for roadbeds or building foundations.

WTE facilities are highly regulated and must meet strict emissions standards to ensure that the air and water quality in surrounding communities is not negatively impacted.

Overall, WTE is a form of solid waste recycling that can provide both energy generation and waste reduction benefits, while also reducing the need for landfill space.

Composting, on the other hand, is a separate process that involves the natural decomposition of organic waste materials to create a valuable soil amendment for use in agriculture and landscaping.

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Hello User!

Answer:

Answer: 1.1 m/s east

It takes a person 42 seconds to swim in a straight line from the west end of a pool to the east end of the pool, a distance of 45 meters, the swimmer's velocity is approximately 1.1 m/s. The correct option is C.

The velocity is the rate of motion in a certain direction and is calculated by dividing 45 metres by 42 seconds. The swimmer in this instance is swimming towards the east side of the pool.

The swimmer's velocity can be calculated using the formula:

Velocity (v) = Distance (d) / Time (t)

Given that the distance is 45 meters and the time is 42 seconds:

Velocity (v) = 45 m / 42 s ≈ 1.0714 m/s

The swimmer's velocity is approximately 1.1 m/s.

Thus, the correct answer is C. 1.1 m/s east.

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Answer:

See explanation

Explanation:

Observe, question, research, hypothesize, experiment, review hypothesis, report results.

Monochromator, This is a device that uses a grating to separate a beam of light into its component wavelengths. It is used to select a particular wavelength from the spectrum of light and then send it to the detector.

Wavelengths are a measure of distance between two successive crests or troughs of a wave. Wavelengths can represent a variety of different wave forms, including sound waves, light waves, radio waves, and X-rays. Wavelengths are measured in various units, including meters (m), Angstroms (Å), nanometers (nm), and micrometers (μm). The wavelength of a wave is inversely proportional to its frequency; in other words, the higher the frequency, the shorter the wavelength. Wavelengths are an important factor in determining what type of wave is being emitted from a particular source.

The sketch of the grating spectrometer used in the experiment can be represented as follows:

1.Monochromator – This is a device that uses a grating to separate a beam of light into its component wavelengths. It is used to select a particular wavelength from the spectrum of light and then send it to the detector.

2. Slit – This is a narrow opening in the monochromator that limits the amount of light that can pass through.

3. Detector – This is the device that measures the intensity of the light at the selected wavelength.

4. Grating – This is a component of the monochromator that is used to separate the light into its component wavelengths.

5. Mirror – This is used to redirect the light beam onto the grating.

The functions of these components are as follows:

The monochromator is used to select a specific wavelength of light from the spectrum of light and send it to the detector. The slit is used to limit the amount of light that can pass through. The detector is used to measure the intensity of the light at the selected wavelength. The grating is used to split the light into its component wavelengths.

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The electromagnet becomes weaker when the number of coils around the nail is decreased. The correct answer is "It becomes weaker."

An electromagnet is created by coiling a wire around a magnetic core, such as a nail, and running an electric current through the wire. This creates a magnetic field around the wire, which magnetizes the core.

The strength of the magnetic field and thus the strength of the electromagnet is directly proportional to the number of coils around the magnetic core.

This is because each coil adds to the magnetic field, and the more coils there are, the stronger the magnetic field becomes.

When some coils are removed, there are fewer coils contributing to the magnetic field. As a result, the strength of the magnetic field and thus the strength of the electromagnet decreases.

Therefore, the correct option is " it becomes weaker" when the number of coils around the nail is decreased.

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Answer:

The law of gravity

Explanation:

The calculate the total distance traveled by a particle on [0, Ï], we need to find the absolute value of the area under the velocity curve. This is because distance is the magnitude of displacement, which can be negative or positive depending on the direction of motion, but the area under the curve represents the total magnitude of the motion.

The start by finding the antiderivative of the velocity function v(t) = -sin (t - Ï/4) ∫v(t) dt = ∫-sin (t - Ï/4) dt = cos (t - Ï/4) + C
Next, we the antiderivative at the bounds of integration cos(Ï) - cos (0 - Ï/4) = cos(Ï) - cos(Ï/4) Finally, we take the absolute value of the difference between the two evaluated antiderivatives to get the total distance traveled:
|cos(Ï) - cos(Ï/4) | This is the answer to the question, expressed in 200 words. The total distance traveled by a particle on [0, Ï], given that the velocity is v(t) = -sin (t - Ï/4), is |cos(Ï) - cos(Ï/4) |. We find the total distance traveled by taking the absolute value of the difference between the antiderivative of the velocity function evaluated at the bounds of integration. This approach works because distance is the magnitude of displacement, which can be negative or positive, but the area under the curve represents the total magnitude of the motion.

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The correct statement that describes the various applications listed above is d. Microwave ovens emit in the same frequency band as some wireless Internet devices, and d. All these technologies emit waves with a wavelength in the range 0.10 to 10.0 m.

The reason for this is that all the technologies listed use electromagnetic radiation to transfer information, which includes radio waves and microwaves. The frequency range of these waves is generally between 300 MHz and 300 GHz, which overlaps with the frequency band used by wireless Internet devices and microwave ovens. However, the statement e.

The claim that radiation emitted by wireless Internet devices has the shortest wavelength of all the technologies listed above is incorrect, as infrared waves and visible light have shorter wavelengths than wireless Internet devices. Additionally, statement b.

All these technologies use radio waves, including high-frequency microwaves, and all the technologies that emit waves with a wavelength in the range of 0.01 to 10.0 km are incorrect, as they do not accurately describe all the technologies listed.

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The force responsible for the acceleration of the crate is the frictional force between the crate and the bed of the truck.

When the truck accelerates, the crate tends to remain at rest due to inertia. However, the frictional force between the crate and the bed of the truck acts in the forward direction, allowing the crate to accelerate along with the truck.

This frictional force is a result of the interaction between the surfaces of the crate and the truck bed. Without this frictional force, the crate would slide or move independently from the truck's acceleration.

The frictional force arises due to the microscopically rough surfaces of the crate and the truck bed. As the two surfaces are pressed against each other, intermolecular forces come into play, resulting in the generation of the frictional force

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Answer:

Forms over water, warm humid air mass, it's a polar air mass

Explanation: I think that's right sorry if it's not..

GL! :)