How may the desire for a perfect lawn related to environmental pollution

Answer:

If zinnias are exposed to direct sunlight for a sufficient amount of time each day, then they will grow and bloom more successfully compared to those that do not receive adequate sunlight.

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Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

got it right

Answer:

The two neighboring planets with the greatest distance between them is Neptune and Uranus. This happens when they are at the opposite sides of the Sun at approximately. They are 4500 million miles away from each other.

If by adjacent you mean next to each other, in terms of the order of planets in our Solar System, then the closest would be Earth and Venus; which are separated by about 38,000,000 kilometres when in opposition.

I am not sure about the general patterns..

Venus has the longest day of any planet in our solar system. It completes one rotation every 243 Earth days.

A year on Neptune is the longest of any planet, lasting the equivalent of 164.8 years (or 60,182 Earth days). It is obvious because it is also the farthest with the longest orbit.

Outer planets are less dense than the inner planets because they posses a big volume but contains not much mass. Try to imagine 2 rocks, one is big, but is hollow or have a lot of holes; and the other is small, but solid with no holes.

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The two neighboring planets with the greatest distance between them is Neptune and Uranus. This happens when they are at the opposite sides of the Sun at approximately. They are 4500 million miles away from each other.

A planet is a large, rounded astronomical body that is neither a star nor its remnant.

If by adjacent you mean next to each other, in terms of the order of planets in our Solar System, then the closest would be Earth and Venus; which are separated by about 38,000,000 kilometres when in opposition.

Venus has the longest day of any planet in our solar system. It completes one rotation every 243 Earth days.

A year on Neptune is the longest of any planet, lasting the equivalent of 164.8 years (or 60,182 Earth days). It is obvious because it is also the farthest with the longest orbit.

Outer planets are less dense than the inner planets because they posses a big volume but contains not much mass. Try to imagine 2 rocks, one is big, but is hollow or have a lot of holes; and the other is small, but solid with no holes.

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Positively charged and negatively charged particles of material are attracted by each other. Therefore, statement (B) is an example of static electricity.

Static electricity can be described as an imbalance between the electric charges in an object, which is actually the imbalance between the positive and the negative charges on a body.

The imbalance in the charge is described the static electricity. The contact between solid objects is one of the most common causes of static electricity.  

In static electricity, the movement of protons cannot be possible and the movement of electric charge is due to electrons. Electrons in materials are held loosely, so they can be easily exchanged via simple contact such as rubbing.

Such charges can be collected on the surface of a body until they find a  to get discharged. The way to discharge is generally through a circuit. Static electricity is the electric field that is generated due to stationary charges. The electric charges on the surface involve which combine the static electricity on the material.

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Answer:

Explanation:

The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.

The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from below one hertz to above 1025 hertz, corresponding to wavelengths from thousands of kilometers down to a fraction of the size of an atomic nucleus. This frequency range is divided into separate bands, and the electromagnetic waves within each frequency band are called by different names; beginning at the low frequency (long wavelength) end of the spectrum these are: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays at the high-frequency (short wavelength) end. The electromagnetic waves in each of these bands have different characteristics, such as how they are produced, how they interact with matter, and their practical applications. There is no known limit for long and short wavelengths. Extreme ultraviolet, soft X-rays, hard X-rays and gamma rays are classified as ionizing radiation because their photons have enough energy to ionize atoms, causing chemical reactions. Exposure to ionizing radiation can be a health hazard, causing radiation sickness, DNA damage and cancer. Radiation of visible light and longer wavelengths are classified as nonionizing radiation because they have insufficient energy to cause these effects.

Throughout most of the electromagnetic spectrum, spectroscopy can be used to separate waves of different frequencies, producing a spectrum of the constituent frequencies. Spectroscopy is used to study the interactions of electromagnetic waves with matter.[4]

Answer:

A. both fields use the same technology

Explanation:

Answer:

Explanation:

Friction is a force which opposes the relative motion of two objects in contact.

Answer: The resistance that one surface or object encounters when moving over another

Explanation: The action of one surface or object rubbing against one another.

Example: Sally rubbed the two sticks TOGETHER that is an example of friction.

Answer:

By the Retina

Explanation:

I like your profile pic

Answer: retina

Explanation: They are located in the retina (a layer at the back of the eye).

Answer:

Newton's Third Law

His third law states that for every action (force) in nature there is an equal and opposite reaction

Explanation:

Answer:

C kind sir

Explanation:

Curling is a sport in which players slide stones across a  distance of ice toward a target area. The purpose is to accumulate the loftiest score for a game by making monuments rest closest to the center of the target at the end of each side.  There are two  brigades. Each  platoon is trying to keep the other  platoon's  monuments down from the target by knocking their  monuments out of the way.

Newton's Second Law " The acceleration of an object is directly commensurable to the net force acting on it and is equally commensurable to its mass. The direction of the acceleration is in the same direction as the net force acting on an object."  This relates to the formula F =  ma. The mass of the determinedness monuments in curling is 38 to 44 pounds or 17.3 to 20 kg. The thing of the sweepers is to control the acceleration of the gravestone by reducing disunion on the ice, which affects the force with which the gravestone is suitable to impact the other monuments.

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Answer: atomic think so

Explanation:

Answer:

Physical.

Explanation:

It is physical because atomic is dealing with something with the elements constructing the substance. Molecular is similar. Chemical is changing the chemical makeup of a substance. So through the process of elimination, it is physical.

Answer: One

Explanation:

If there is more than one magnesium atom, there will be a number next to it. When there is only one atom, the number 1 is not included next to the element.

Answer:

hmmm, i wanna say....5.0 m per second but im not 100% sure

Answer:

the SI base unit of electrical current

Answer:

An ampere is the current that flows through a conductor whose resistance is 1 ohm and the potential difference applied across its ends in 1 volt.

Explanation:

\({ \tt{ampere = \frac{1 \: volt}{1 \: ohm} }}\)

Answer:

The maximum depth of the water at the place is 6.0 meters.

Given the tidal range and average depth, it is to be noted that the maximum depth of the water at the place, is 6.0 meters.

The tidal range is the successive difference between tide highs and lows, which is a sinusoidal pattern. On the basis of the above, it is correct to state that the tidal range is twice of the amplitude of the tide level.

That is:

The Amplitude of the tide, A = 2.0/2m = 1m

The maximum depth at the place, therefore, is given as:


D\(_{max}\) = A + D\(_{ave}\)

Hence,

D\(_{max}\) = 1.0 + 5.0 = 6.0

Thus, it is correct to state that the Maximum Depth (D\(_{max}\)) = 6.0 Meters.

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Answer:

is this a physics questions???

and i didnt get u btw

1. The kinetic energy of the bottle is 1 Kg.m²/s²

2. The kinetic energy of the bottle is 2 Kg.m²/s²

3. The kinetic energy of the bottle is 3 Kg.m²/s²

4. The kinetic energy of the bottle is 40 Kg.m²/s²

The kinetic energy can be obtain as illustrated below:

1. For mass 0.125 Kg

KE = ½mv²

KE = ½ × 0.125 × 4²

Kinetic energy = 1 Kg.m²/s²

2. For mass 0.250 Kg

KE = ½mv²

KE = ½ × 0.250 × 4²

Kinetic energy = 2 Kg.m²/s²

3. For mass 0.375 Kg

KE = ½mv²

KE = ½ × 0.375 × 4²

Kinetic energy = 3 Kg.m²/s²

4. For mass 0.500 Kg

KE = ½mv²

KE = ½ × 0.500 × 4²

Kinetic energy = 40 Kg.m²/s²

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The change in kinetic energies are 1 \(kg m^{2}/s^{2}\), 2 \(kg m^{2}/s^{2}\), 3 \(kg m^{2}/s^{2}\), and 4 \(kg m^{2}/s^{2}\) respectively as the mass of the bottle is changed as 0.125kg,  0.250kg, 0.375kg, and 0.500kg.

Given the velocity v=4m/s.

KE=\(1/2 mv^{2}\)
Here KE represents the Kinetic energy of the bottle, m represents the mass of the bottle which is varying time to time, and v represents the velocity of the bottle which is constant over time.
For the first case:
Given mass m=0.125kg
∴KE=\(1/2mv^{2}\)
     =1/2*(0.125)*(4)²
     =1 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.125kg is 1 kg m²/s².

For the second case:
Given mass m=0.250kg
∴KE=\(1/2mv^{2}\)
     =1/2*(0.250)*(4)²
     =2 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.250kg is 2 kg m²/s².

For the third case:
Given mass m=0.375kg
∴KE=\(1/2mv^{2}\)
     =1/2*(0.375)*(4)²
     =3 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.375kg is 3 kg m²/s².

For the final case:
Given mass m=0.500kg
∴KE=\(1/2mv^{2}\)
     =1/2*(0.500)*(4)²
    =4 \(kg m^{2}/s^{2}\)
Hence the change in kinetic energy of the bottle when it became 0.500kg is 4 kg m²/s².

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You can see yourself in the mirror through the reflection of light and the waves of the ocean/water

Answer:

Wave W is a sound wave, Waves X and Y are light waves, and it is impossible to tell what kind of wave Wave Z is.

Explanation:

W      travels fastest through metal

X       travels fastest through air,

Y       travels more slowly through water than air    

Z       travels more slowly at cool temperatures

W appears to be sound wave  as sound travels fastest through metal .

X appears to be light wave as light travels fastest in air .

Y also appears to be light wave as  speed of light is reduced when it passes from air to water .

Z  It is impossible to tell anything about the nature of Z wave .

Answer:

d

Explanation:

Answer:

Increase the mass or velocity.

Explanation:

The formula of Kinetic Energy is Ek=1/2*m*v^2. So both increase the mass or velocity can increase the Ek.

Kinetic energy of an object depends on its  mass and velocity. Therefore, the roller caster can gain more kinetic energy by increasing its velocity. Increase in mass by loading the cart can also helps to increase its kinetic energy.

Kinetic energy of an object is generated by virtue of its motion. Whereas, the when the object is at rest, the energy is stored in the form of potential energy.

The kinetic energy of a body is depends on its mass and velocity as per the relation written below:

KE = 1/2 Mv²

Hence, an increase in velocity increases  the kinetic energy by 4 times. Similarly an increase in mass also increases the kinetic energy.

Therefore, by increasing its speed and loading more mass, the roller coaster can gain more kinetic energy. Moreover, the way can be more smoothened to avoid the chance of friction.

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Answer: Pretty sure the answer is B but this kind of looks like a test question.

Explanation:

Answer: hi

Explanation: cool is me

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

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Answer:

The force of gravity on the new planet is less than it is on Earth.

Explanation:

The period of a pendulum is inversely related to acceleration due to gravity. Therefore, if the period of the given pendulum increases, it must be due to a decrease in the force of gravity.

In an analogy of a circuit with a resistance to an obstacle race, we can consider various elements of the race as representative of different components of the circuit.Obstacles, Track or Route, Participants, Start and Finish Line.

Obstacles: The obstacles in the race represent the resistors in a circuit. Just as resistors impede the flow of current in a circuit, obstacles in the race create hurdles that slow down the participants. The difficulty or magnitude of the obstacles can be equated to the resistance value of the resistors in a circuit.

Track or Route: The race track or route itself can be seen as the conductive path in a circuit. It provides a pathway for the participants to move and complete the race. Similarly, the conductive path in a circuit allows the flow of current from the power source to the load.

Participants: The people participating in the race represent the flow of electrons in a circuit. Just as the participants move through the obstacles in the race, electrons move through the resistors in a circuit. The rate at which participants complete the race can be compared to the current flowing through the circuit.

Start and Finish Line: The start and finish line of the race correspond to the terminals of a circuit. The start line represents the positive terminal, where the participants begin their journey, and the finish line represents the negative terminal, where the race concludes.

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Answer: As an analogy of a circuit with resistance, the obstacles in an obstacle race represent the resistance in a circuit. The parts of the circuit that the obstacles represent are the resistors. The people in the obstacle race represent the current in a circuit. The current is the flow of charged particles (such as electrons) in a circuit. In an obstacle race, the people are moving through the obstacles, just as the charged particles are moving through the resistors in a circuit. The obstacles slow down the people, just as the resistors slow down the flow of charged particles in a circuit.

Explanation:

Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Power is the rate at which work is done. James Watt is a famous engineer and inventor who developed the steam engine.

He improved the efficiency of the engine by adding a separate condenser, which reduced the amount of fuel needed. In his honor, the watt was named after him as the unit of power.

For the activity, here is a suggestion; conducting a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer.

Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:

Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)

Amount of Horsepower or Watts: (Record power in horsepower or in watts.)

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Answer:

0

Explanation:

I believe they both cancel each other out, I might be wrong though