If the wind is blowing from north to south, where are the areas of high and low pressure?

Answer:

The answer is can speed an object direction!!!!

Stars form from molecular clouds through a process known as stellar formation.

These clouds, characterized by low temperatures and high densities, provide the ideal conditions for atoms to combine and form molecules. With a mass range spanning from a few solar masses to millions of solar masses, molecular clouds serve as the birthplaces of new stars. The Pleiades cluster serves as a notable example of stars that have recently formed within such a stellar nursery.

The formation of stars from molecular clouds involves several key steps. Firstly, gravitational forces acting on regions of higher density within the cloud cause them to collapse under their own gravity. As the cloud collapses, it begins to fragment into smaller, denser clumps called protostellar cores. These cores continue to collapse, and their central regions become increasingly dense and hot. At this stage, they are known as protostars.

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Answer:

0.83m/s,east

Explanation:

velocity=d/t

v=50/60

v=0.83m/s,east

Answer:

it would be coal

Explanation:

coal is the most used energy source in many countries as of China , India and, the United States

Coal is a primary energy source used by power plants to generate electricity

Electricity generation plants convert the chemical energy of fuel into electricity. Coal, oil, natural gas and nuclear fuels are the energy sources most commonly used for generating electricity.

"Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests."

"A fundamental form of energy observable in positive and negative forms that occurs naturally (as in lightning) or is produced (as in a generator) and that is expressed in terms of the movement and interaction of electrons. "

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Answer:

Student A is correct.

Explanation:

This is because by student A's recording, we get the average speed = total distance/total time = 6 m/2 s = 3 m/s. Student B recorded an average speed of 1.5 m/s². This cannot be correct because it is in the unit of acceleration.

The force exerted by the fire hose is 2.827 kN

First, we need to calculate the area of the jet using the formula for the area of a circle:

Area = π x (radius)^2

We know the diameter of the jet is 0.6m, so the radius is half of that

radius = 0.6m / 2 = 0.3m

Plugging this value into the formula, we get:

Area = π x (0.3m)^2 = 0.2827 m^2

Next, we can use the formula for pressure to calculate the force exerted:

Pressure = Force / Area

Rearranging this formula to solve for force, we get:

Force = Pressure x Area

Plugging in the given values, we get:

Force = 10 kPa x 0.2827 m^2 = 2.827 kN

Therefore, the force exerted by the fire hose is 2.827 kN (kilonewtons).

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A repulsive force between the two magnets causes the suspended magnet to swing to the left. Option A

We know that a magnet is any materials that has the magnetic domains in the substance being properly aligned. The implication of this is that the material is also capable of making the magnetic domains in another material to also become aligned.

The materials that can be attracted by a magnet are said to be magnetizable materials. We can see that the force that acts between two magnets can be an attractive force or repulsive force depending on the poles of the magnet that are facing each other.

Since unlike poles attract and like poles repel, the poles that have been shown in the image that is attached would repel each other.

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Answer:

the heating method in here is conventional heating due to the warn air goes to the top bunk whereas the cold air sinks down

When an airplane travels 640 miles from Topeka to Houston in 3. 2 hours, going against the wind. The return trip is with the wind and takes only 2 hours. Then the rate of the airplane with no wind is 260 miles/hr, and the rate of the wind is 100 miles/hr

Let Va is the velocity of the airplane

Va is the velocity of the wind

When flying against the wind then

(Va+Vw)*(3.2 hours) = 640

3.2Va + 3.2Vw = 640

3.2Vw = 640 - 3.2Va

Vw = 200 - Va----------------(1)

When flying with the wind:

(Va-V)*(2 hours) = 640km

2Va - 2Vw = 640

Va - Vw = 320 ----------------(2)

Putting the value of VW in equation (2) we get

Va - (200-Va) = 320

2Va = 320 +200

2Va = 520

Va = 260

Putting this value in equation (2)

Vw =Va - 360

Vw = 100

Therefore the rate of the airplane with no wind is 260 miles/hr, and the rate of the wind is 100 miles/hr

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In order for the total force on q2 to be zero, the electric charge on q4 must be equal to the electric charge on q2. Therefore, the electric charge on q4 must be 5 nC.

The electric charge on an object is a measure of its electrical charge. It is expressed in units of Coulombs (C). The electric charge of an object can be either positive or negative. Two objects with the same electric charge will experience a force of repulsion, while two objects with opposite electric charges will experience a force of attraction.

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Answer:

its false

Explanation:

because Longitudinal waves are in which particles of the medium move directio ni. parallel to the energy transport.

I think this is ur answer

The major reason why a wet saw that is used in cutting optical crystals is constantly lubricated with oil is largely due to friction, lubrication decreases friction and minimises the increase of internal energy.

Friction is basically the coming together of two parts that rubs against each other, it causes heat and lead to  deterioration of surfaces, it can also lead to wear and tear.

Although, despite it down side, friction is desire-able in most applications

e.g the brake system of vehicles, and if not for friction, we humans cannot walk without falling

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Answer:

1498962290

Explanation:

hi <3

i believe the answer would be D, as when the temperature increases the particles have more energy and can overcome the activation energy more rapidly.

hope this helps :)

The annual variation in the amount of solar radiation received varies with latitude because the  direction of Earth's tilt changes with respect to the Sun during the year.

How does solar radiation vary with latitude ?

Despite the fact that high latitude regions receive more solar radiation than low latitude regions do, heat is nevertheless transported throughout the planet by the ocean and the atmosphere.

How does the amount of solar radiation received vary on Earth?

What is the relationship between the annual solar radiation cycle and the annual temperature cycle?

The coldest day of the year occurs after the winter solstice, and the warmest day of the year occurs (on average, so many days) after the summer solstice, because the annual temperature cycle lags the annual radiation cycle.

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Answer:

Because renewable energy creates little to no emissions compared to fossil fuel or non renewable energy.

Explanation:

it's simple and clear

The correct option is B, Standing waves result from the superposition of two waves that have the same amplitude and frequency and opposite directions of propagation .

Amplitude is a fundamental concept in physics and refers to the maximum displacement or distance of an oscillating system from its equilibrium position. It is commonly used to describe the magnitude of a wave or vibration, and is measured in units such as meters or volts.

In the context of waves, amplitude represents the maximum height or depth of the wave crest or trough, and is often used to describe the intensity or strength of the wave. In sound waves, amplitude is directly related to the loudness or volume of the sound, with larger amplitudes corresponding to louder sounds. In electrical engineering, amplitude refers to the maximum voltage or current of an alternating current (AC) waveform.

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Complete Question:-

Standing waves result from the superposition of two waves that have

a. the same amplitude, frequency, and the direction of propagation.

b. the same amplitude and frequency and opposite directions of propagation .

c. the same amplitude, slightly different frequencies, and the same direction of propagation.

d.the same amplitude, slightly different frequencies, and opposition directions of propagation

The center of mass of the human body is typically located in the  belly button or navel. This location provides a good estimate of the motion of the center of mass.

The location on the human body that provides a good estimate of the motion of the center of mass is the belly button or navel. The navel is located approximately at the center of the human body and is a good estimate of the motion of the center of mass because it is at the midpoint between the top and bottom of the body. In other words, the navel is a good reference point for the motion of the center of mass because it is at the center of the human body and is relatively close to the center of mass. This makes it a good location to estimate the motion of the center of mass, which is important for understanding how the human body moves and maintains balance. Overall, the navel is a good location on the human body to estimate the motion of the center of mass because it is at the center of the body and is close to the center of mass.

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The energy in each pulse of the laser is 0.0120 joules (J).

Energy = Power x Time

Substituting the given values, we get:

Energy = 0.600 W x 20.0 ms

We need to convert the time from milliseconds to seconds, which gives:

Energy = 0.600 W x 0.0200 s

Energy = 0.0120 J

Energy can be defined as the ability to do work. It is a fundamental concept in physics and is present in various forms in our daily lives. The most common types of energy include mechanical, thermal, electrical, chemical, and nuclear energy.

Mechanical energy is the energy associated with the motion and position of an object, while thermal energy is the energy associated with the temperature of an object or system. Electrical energy is the energy associated with the flow of electric charge, while chemical energy is the energy stored in chemical bonds between atoms and molecules. Finally, nuclear energy is the energy stored in the nucleus of an atom.

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The Centripetal force changes by a factor of 9.

A body is forced to follow a curved path by a centripetal force. It always moves in a direction that is the opposite of the body's motion and in the direction of the fixed point of the path's immediate center of curvature. "A force by which bodies are dragged or driven, or in any other manner tend, towards a point as to a center," was how Isaac Newton defined it. The centripetal force that causes astronomical orbits in Newtonian physics is provided by gravity.

The scenario in which a body moves uniformly fast along a circular path is one frequent example of centripetal force. In addition to moving along the radius, the centripetal force is also directed at right angles to the motion.

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D. The specific heat of a gas can be measured at constant pressure.

By definition, the specific heat capacity of a substance is the heat capacity of a sample of the substance divided by its mass, also known as massic heat capacity.

Water has a high specific heat, which means that it takes more energy to raise the temperature of water than other substances.

For gaseous substances, their specific heats can be measured at constant pressure.

Using the above as a guide, we have the following:

The accurate statement about specific heat is (d)

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Answer:

400

Explanation:

We divide time (4.5 hours) and speed (1800 miles)

1800÷45=400

Answer:

Label A: red

Label B: yellow

Label C: green

Label D: blue

Label E: violet/purple

I think this should be correct. I'm sorry if I'm incorrect

Based on the degree of refraction from least to most refracted, the colors are as follows: Red, Orange, Yellow, Green, Blue, Indigo, Violet.

Refraction of light is the bending of light rays as they cross the boundary between two media of different densities.

White light consists of seven colors of light; Red, Orange, Yellow, Green, Blue, Indigo, Violet.

The red color has the shortest wavelength and is the least refracted while violet color has the longest wavelength and is most refracted.

Therefore, based on the degree of refraction from least to most refracted, the colors are as follows: Red, Orange, Yellow, Green, Blue, Indigo, Violet.

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Answer:

for identifying elements in a sample

for determining the distance and velocity of galaxies

for producing neon lights

for determining types of chemical bonds

for use in medical imaging devices

Explanation:

I hope this helps. :)

Answer:

30N

Explanation:

Answer:

76.67% efficient

Explanation:

11500/15000*100

Conversion of electromagnetic (EM) energy from the sun into other forms of energy occurs for the following options:

a. Biofuels

c. Solar thermal power

e. Wind power (EM to air movements)

A- Biofuels: During photosynthesis, plants capture electromagnetic energy from the sun and convert it into chemical energy, stored in the bonds of organic molecules, such as glucose. This process allows for the conversion of EM energy to chemical energy in the form of biofuels.

c. Solar thermal power: Solar thermal power plants use mirrors or lenses to concentrate sunlight, which is then converted into heat energy. This thermal energy can be used to generate steam, which drives a turbine and produces mechanical energy.

e. Wind power: Wind turbines harness the kinetic energy of moving air, which is ultimately driven by the sun's uneven heating of the Earth's surface. The sun's energy heats the atmosphere, creating temperature and pressure gradients that result in wind currents.

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Answer: C

Explanation: When you have a tomato for example, it absorbs every color but red and therefore, appears red.