When the surface of an object is ____ the plane of projection, the surface appears in its true size and shape on the plane of projection?

Warm front

Stationary front

Occluded front

Answer:

semantic.

Explanation:

100% correct

The gravitational pull that a 1-solar-mass black hole would exert on Earth is the same as the sun. This is because gravitational pull is determined by mass and distance. However, life on Earth would be greatly impacted due to the lack of sunlight and heat.

If the sun was replaced by a 1-solar-mass black hole, the gravitational pull it exerts on Earth would be the same as that of the sun. This is due to the fact that gravitational pull is determined by mass and distance. Considering the mass would be the same and the distance between Earth and the black hole would remain constant, the gravitational pull remains unaffected.

However, without the sun's light and heat, life as we know it on Earth would not be sustainable. It's also important to note that while the gravitational pull remains the same, various other aspects of having a black hole instead of a sun would drastically impact our planet.

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The answer is Solor flare, this is because this is a sudden eruption of energy that is magnetic on or even near the surface of the star, the sun.

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Answer:

B) The unit of the variable on the y-axis is incorrect.

Explanation:

The question to this exercise is in the picture. It is '' What makes the above graph incorrect? ''

Let's analize each option :

A) The variables are plotted along incorrect axes. This is wrong because actually the graph is well-plotted. In a displacement versus time graph we put the time variable in the x-axis and the displacement variable in the y-axis.

B) The unit of the variable on the y-axis is incorrect. This is true. In the graph we can see that [tex]''Displacement(\frac{m}{s})''[/tex] when the units of displacement are units of lengths such as meters or miles for example. Therefore, the B) is a correct option

C) The scale for each axis is not appropriate for the data. This is wrong. Because of the scale for each axis we are able to see the five  data points which are (1,2) ; (2,4) ; (3,6) ; (4,8) and (5,10)

D) The data points have not been plotted clearly. This is wrong. All data points are well-plotted signposted with a point at the intersection of the dashed coordinated lines. For example, the point (1,2) is at the intersection of two lines : one dashed line perpedicular to the x-axis at 1 and one dashed line perpendicular to the y-axis at 2

E) The data points have not been plotted accurately. This is wrong. The data points have been plotted accurately at the intersection of the coordinated dashed lines.

Finally, the only correct option is B)

Answer:B

Explanation:

XWYZ

The frequency corresponding to a period of 8.01 seconds is calculated using the formula f = 1/T, resulting in a frequency of approximately 0.125 Hz.

The question relates to the concept of period and frequency in wave motion which is a topic in Physics. To find the frequency corresponding to a period of 8.01 s, you use the formula f = 1/T, where f is the frequency and T is the period. Applying this formula:

f = 1/T = 1/8.01 s ≈ 0.125 Hz

Therefore, the frequency corresponding to a period of 8.01 seconds is approximately 0.125 Hertz (Hz).

Final answer:

A cow experiences a mild shock from an electric fence because its body conducts electricity, completing a circuit to the ground, which is designed to be unpleasant but not harmful. Modern electric fences use pulsed currents to allow detachment, with safety standards keeping shocks below the harmful threshold.

Explanation:

When a cow touches an electric fence, it experiences a mild shock due to the principles of electricity and current flow in living organisms. Our bodies, similar to the cow's, are good conductors because of the high water content. This conductivity allows electric currents to flow through us, following the path of least resistance to reach the ground, often referred to as 'earthing'. Electric fences are designed to give a shock that is unpleasant but not harmful, utilizing a small current that can cause a sensation but is usually not enough to damage tissue.

Modern electric fences are now pulsed on and off to allow someone who touches them to pull away. This design is vital for safety, preventing prolonged exposure that could lead to muscular contractions strong enough to prevent letting go of the fence. Shocks from electric fences are typically below 5 mA (milliamps), which is the maximum allowed shock according to many safety standards. This threshold ensures the shock is felt but remains within a range considered to be harmless.

Additionally, the earth acts as a natural electron sink, allowing currents to dissipate safely when an individual or animal completes the circuit by touching the fence while grounded. However, insulating materials such as rubber shoes can break this path, preventing the shock, which is why electrical safety protocols often include insulating gear to prevent the flow of electrical currents through the body.

The roadway with the highest number of hazards per mile is city roads and street.

The city has a high population of people, this is a combination of both men and women. These categories of people need vehicles to move around the city, they need it go to the office, school, markets and so on.

Due to the high number of individuals in the city there tend to be a high level of traffic, this can lead to accident or other type of road hazards.

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Answer:

A. Rubbing converts neutrons to protons, increasing the charge

Explanation:

Rubbing two objects creates static electricity. It is also known as charging by friction.  When two objects having different electron affinity are rubbed together, the one with greater electron attraction rips off the electrons from other object. In this way charge is transferred from one to another. The one losing the electrons becomes positively charged and the one gaining the electrons becomes negatively charged. Neutrons do not convert to protons. Thus, this is a wrong statement.

Answer:

b

Explanation:

From the graph, it is clear that potassium nitrate, KNO₃ undergo great change in solubility over the temperature range.

What is solubility?

Solubility of a substance is the fraction of its concentration which is dissolved in a solvent at a specified temperature. Solubility of a substance is dependent on the nature of both solute and solvent.

The factors which determine the solubility of  a solute are its bond types, molecular weight, temperature and pressure. As the temperature increases, the intermolecular force attraction between solute molecules decreases leading to  solvent- solute interaction results in greater solubility.

From the graph it is clear that solubility of KNO₃ changes rapidly with temperature. Whereas , other compounds dose not show this steep curve with increase in temperature. Thus option B is correct.

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Answer:

C

Explanation:

im doing the test rn but i think this is right correct me if im wrong also have a good day or night

Answer:

A

Explanation:

A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.

Answer:

a battery, a coil of wire and a compass

Explanation:

A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.

An outward curving lens, or convex lens, converges light rays and is an essential element in optical devices like microscopes and cameras. It has a positive radius of curvature by convention. Convex lenses help correct farsightedness by focusing light rays onto a specific point.

An outward curving lens, also known as a convex lens or a converging lens, is a lens that is curved outward on both sides, resembling the intersection of two spheres. This type of lens causes parallel light rays to converge or come to a point after passing through it. The radius of curvature for a convex surface is positive by convention, which helps in the lens-maker's equation for calculating the focal length of the lens.

Convex lenses are widely used in various optical devices such as microscopes, telescopes, cameras, and eyeglasses to correct farsightedness by focusing light rays onto a specific point, resulting in a clear image.