what is one example of how humans impact global warming? responses contour plowing by farmers increases the level of rain water run-off. contour plowing by farmers increases the level of rain water run-off. burning coal and oil increases the level of carbon dioxide in the atmosphere. burning coal and oil increases the level of carbon dioxide in the atmosphere. the use of copper wire in power transformers increases the speed of the electrical currents. the use of copper wire in power transformers increases the speed of the electrical currents. heat emitted from factories, automobiles, and buildings increases the average global temperature.

An additional pressure equivalent to a height of 100 m is needed to pump the water from the bottom tank to the top tank if there is no friction. The minimum power required is around 6880 kg * \(m^2/sec^3.\)

To calculate the minimum power required when accounting for friction in pumping water between tanks, we need to consider the additional pressure required and the flow rate.

Given:

Additional pressure due to friction = 100 m

Let's assume the flow rate is Q (in cubic meters per second).

The power (P) required to pump water can be calculated using the formula:

P = Q * ρ * g * H

where ρ is the density of water and g is the acceleration due to gravity.

We can express the additional pressure (ΔP) in terms of the height of the water column:

ΔP = ρ * g * Δh

Solving for Δh, we find:

Δh = ΔP / (ρ * g)

Substituting the given values:

P = \((0.6 m^3/sec * 8.5 m * 1000 kg/m^3) / 0.75 + (0.6 m^3/sec * 100 m) / 0.75\)

P = \((5100 kg * m^2/sec^3) / 0.75 + (60 m^2/sec^2) / 0.75\)

P = \(6800 kg * m^2/sec^3 + 80 m^2/sec^2\)

P = \(6880 kg * m^2/sec^3\)

Therefore, the minimum power required, accounting for friction, is approximately \(6880 kg * m^2/sec^3.\)

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Answer:

A cleaning product that contains a base.

Explanation:

Ren should use a cleaning product that contains a base. This is because bases readily react with lipids (fats), the kind of compound that makes up grease. A base would break down the grease, forming soap, which would then easily wash away.

The regular daily rises and falls in sea level caused by the gravitational attraction of the moon and sun on earth.

What is Gravitational attraction?

Gravitational attraction is the force of attraction between two objects with mass. The strength of the gravitational attraction depends on the masses of the objects and the distance between them. The greater the mass of the objects and the closer they are to each other, the stronger the gravitational attraction between them.

Tides are the regular daily rises and falls in sea level that are caused by the gravitational attraction of the moon and the sun on the Earth. As the Earth rotates, it experiences two high tides and two low tides every day. The gravitational pull of the moon causes a bulge in the ocean on the side of the Earth that faces the moon, resulting in a high tide. On the opposite side of the Earth, there is also a high tide because the gravitational force of the moon pulls the Earth away from the ocean on that side.

In addition to the moon, the sun also contributes to the tidal forces on Earth, although to a lesser extent due to its greater distance. When the sun and the moon are aligned, their tidal forces combine to create especially high "spring tides." When they are at right angles to each other, their tidal forces partially cancel out, resulting in lower "neap tides."

Tides play an important role in coastal ecosystems, navigation, and other human activities that rely on the ocean.

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Answer:

Explanation:

If the passage of the waves is one crest every 2.5 seconds, then that is the frequency of the wave, f.

The distance between the 2 crests (or troughs) is the wavelength, λ.

We want the velocity of this wave. The equation that relates these 3 things is

\(f=\frac{v}{\lambda}\) and filling in:

\(2.5=\frac{v}{2.0}\) so

v = 2.5(2.0) and

v = 5.0 m/s

Condensation is the opposite of evaporation.

Evaporation is the process by which water turns into vapour.

The reverse process, condensation, turns water vapour into small water droplets.

Before a liquid reaches its boiling point, evaporation takes place.

Regardless of temperature, condensation is a phase transition.

The forces of attraction between molecules are weak when a liquid is heated or when pressure is reduced, which results in molecular mobility. Following that, the liquid turns into a gas.

The forces of attraction between molecules intensify when a gas is cooled or when the pressure is raised.

The gas then turns into a liquid or even a solid after condensing.

Any surface, at any moment, in any location, can evaporate. When the air is warm, evaporation occurs frequently.

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If a NASA probe is sending images of the Martian surface back to Earth, we could say that the probe is engaging in remote sensing data collection.

Remote sensing is the process of acquiring information about an object or area without being in physical contact with it. In the context of space exploration, remote sensing is commonly used to collect data about celestial bodies, such as planets, moons, and asteroids.

In the given scenario, the NASA probe orbiting Mars is capturing images of the Martian surface and transmitting them back to Earth. This process involves the use of specialized cameras or sensors on board the probe to detect and record electromagnetic radiation (light) reflected or emitted by the Martian surface.

The probe's instruments capture the incoming light in various wavelengths, such as visible light, infrared, or even beyond the visible spectrum (e.g., ultraviolet or microwave). These captured images provide valuable information about the topography, geology, atmosphere, and other features of Mars.

By analyzing these images, scientists and researchers can study the Martian environment, identify geological formations, study atmospheric conditions, and gain insights into the planet's history and potential habitability.

When a NASA probe orbiting Mars transmits images of the Martian surface back to Earth, it is engaging in remote sensing data collection. Remote sensing enables the acquisition of valuable information about distant objects or environments by capturing and analyzing electromagnetic radiation. The images obtained from the probe's instruments allow scientists to study and understand the Martian surface, contributing to our knowledge of the Red Planet and its exploration.

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The carbon isotope was cobined with the proton to produce the nitrogen isotope hence it is a fusion reaction.

The term nuclear fusion refers to a kind of reaction in which two nuclei fuse together to give rise to a single nuclei with the evolution of energy.

We can see that the carbon isotope was cobined with the proton to produce the nitrogen isotope hence it is a fusion reaction.

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Answer:

A. Nuclear fusion

Explanation:

got it right, trust

20 degrees South of West is 200° from the East in counter-clockwise direction.

The vector direction should always be described from the East in counter-clockwise direction. So,

If not mentioned in vector form, it can simply be described using two directions. Here it is given 20 degrees South of West. So, it lies in third quadrant. Up to west it is 180 degrees and 20 degrees South of West is given. So the vector direction is 180 + 20 = 200 degrees.

Therefore, 20 degrees South of West is 200°

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The time taken for the car to decelerate is 4.5 seconds.

option B.

The acceleration of the car is calculated from Newton's second law of motion as follows;

F = ma

a = F / m

a = ( 7500 ) / ( 2250 )

a = 3.33 m/s²

The time taken for the car to slow down is calculated as follows;

v = u + at

at = v - u

t = ( v - u ) / a

where;

t = ( 20 - 5 ) / 3.33

t = 4.5 seconds

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An astronomer reports they have measured the parallax angle of 10 arc seconds for a star. which is reasonable as "the smaller a star's parallax angle, the further away it is."

A parallax angle is the distance evaluated from a nearby star between both the Earth at one time year and the Earth six months after that.

Some key features regarding the parallax angle are-

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A large force can produce a small torque when the force is applied perpendicular to the point of rotation, resulting in a shorter lever arm.

Conversely, a small force can produce a large torque when it is applied perpendicular to the point of rotation but at a greater distance from the pivot point, resulting in a longer lever arm. The torque produced by a force is calculated by multiplying the force by the distance from the pivot point, or lever arm. Thus, the amount produced depends on both the magnitude of the force and the distance from the pivot point. When a large force is applied perpendicular to the pivot point but at a short distance, the resulting torque is relatively small. Similarly, when a small force is applied perpendicular to the pivot point but at a greater distance, the result can be relatively large.

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The energy of the least energetic photon that can be absorbed by these atoms when initially in their ground state is numerically equal to energy of the electron at that orbit.

An electron shell, also known as a primary energy level, is the orbit of one or more electrons around the nucleus of an atom in chemistry and atomic physics. The "1 shell" (also known as the "K shell") is the shell that is closest to the nucleus.

The "2 shell" (also known as the "L shell"), "3 shell" (also known as the "M shell"), and so forth are the shells that are further and more away from the nucleus. The shells are either labelled alphabetically with X-ray notation letters or with the primary quantum numbers (n = 1, 2, 3, 4...) (K, L, M, N...).

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Answer: 5 m/s North

Explanation:

Velocity = Momentum/Mass

Velocity = 225 kg*m/s/45kg

Velocity = 5 m/s North

Answer:

Applying 200 N of force to the chair from the right

Explanation:

Answer: 4.236km

Explanation:

Let's define the point (x, y) as:

x = horizontal distance moved.

y = vertical distance moved.

If the plane starts in the point (0, 0) then:

"A plane travels down a runway 2750 m before it lifts off..."

At this time, the position will be:

P = (0 + 2750m, 0) = (2750m, 0).

"it lifts off at an angle of 37 degrees from the horizontal. The plane has traveled 1.8 km since its wheels left the ground."

In this case, as the angle is measured from the horizontal, the components will be:

x = 1.8km*cos(37°) = 1.438km

y = 1.8km*sin(37°) =  1.083 km

Then the new position is:

P = (2750m + 1.438 km, 0 + 1.083 km)

Let's write it using the same units for all the quantities:

we know that

1km = 1000m

Then:

2750m = (2750/1000) km = 2.750 km.

Then we can write the new position as:

P = (2.750 km + 1.438km, 1.083km) = (4.188km, 1.083km)

Now, we define the displacement as the distance between the final position and the initial position.

The distance between two points (a, b) and (c, d) is:

D = √( (a  c)^2 + (b - d)^2)

In this case the points are:

(0, 0) for the initial position

(4.188km, 1.083km) for the final position.

And the displacement will be:

D = √( (4.188km - 0)^2 + (1.083 - 0)^2) = 4.236km

Answer:

25.0 less force

Explanation:

Iron,

I really hope this helped you

Explanation:

Answer:

Its just Cork and wax

Explanation:

I just did it on edge trust me

Answer:

I'm positive the Answer to this would be C :)

The particles leave a trail behind them as they move. The longer the trail, the faster that the particle is moving. During any up-and-down cycle of the particle, describe the speed. It moves with the greatest speed AND smallest speed when there is a change in the direction.

The speed of an object is described as the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time;

Speed is  a scalar quantity.

The particle will move faster when there is a change in the direction on the movement of the particle.

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Answer:

both velocity and acceleration

Explanation:

answer May be 3

Answer:

Atoms.

Explanation:

Atoms are purely one bit of an element. Ions are positive or negative atoms. Molecules are not pure, they have other stuff with it.

The wavelength and speed of a wave will be the same regardless of the density of the medium.

The wavelength of a wave is determined by the source and frequency of the wave and is independent of the medium through which it travels. Similarly, the speed of a wave is determined by the properties of the medium, such as its elasticity and inertia, and not directly by its density. Therefore, when comparing the wave characteristics of a wave in two different ropes, the wavelength and speed will be the same irrespective of the density of the medium. The density of the medium may affect other properties of the wave, such as the amplitude or intensity, but not the wavelength and speed.

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Answer:

The most widely accepted theory for the formation of fossil fuel is that fossil fuel was formed over time from decaying organic matter. Organisms died and were buried in the ground millions of years ago.

Explanation:

g00gle answer! so change it up a little :P

hope this helps :)

Answer:

9(3x-2y)

Explanation:

27x-18y, the common factor here is 9

9(3x-2y)

The net force acting on the two (2) kids is equal to 180 Newton.

Given the following data:

To determine the net force acting on the two (2) kids:

First of all, we would calculate the total mass of the two (2) kids:

\(Total\;mass = 50+40\)

Total mass = 90 kg.

In this exercise, you're required to calculate the magnitude of the net force that is acting on these two (2) kids running down the hall. Thus, we would apply Newton's Second Law of Motion.

Mathematically, Newton's Second Law of Motion is given by this formula;

\(Net\;force = mass \times acceleration\)

Substituting the given parameters into the formula, we have;

\(Net\;force = 90 \times 2\)

Net force = 180 Newton.

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The height of the cliff above the ground is 51.76 m.

h = vt + ¹/₂gt²

where;

h = 0 + ¹/₂gt²

h = ¹/₂gt²

h = ¹/₂(9.8)(3.25)²

h = 51.76 m

Thus, the height of the cliff above the ground is 51.76 m.

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The optimal values of \(q_1\) and \(q_2\) are determined by these equations, which are functions of Michael's income and the prices of the goods.

The given problem describes Michael's utility maximization problem with a constant elasticity of substitution (CES) utility function. The objective is to find the optimal values of \(q_1\) and \(q_2\) in terms of Michael's income (Y) and the prices of the two goods (\(p_1\) and \(p_2\)).

1. Substitute the income constraint into Michael's utility function:

\(U(q_1, q_2) = (q_1^\rho + q_2^\rho)^(1/\rho)\)

  s.t. \(Y = p_1q_1 + p_2q_2\)

  We can rewrite Michael's budget constraint as \(q_2 = (Y - p_1q_1)/p_2\). Substituting this expression into his utility function, we have:

 \(U(q_1, p_2, Y) = (q_1^\rho + [p_2(Y - p_1q_1)/p_2]^\rho)^{(1/\rho)\)

  By making this substitution, we have converted the constrained maximization problem with two control variables (\(q_1\) and \(q_2\)) into an unconstrained problem with one control variable \((q_1)\).

2. Use the standard unconstrained maximization approach to determine the optimal value for \(q_1\). To obtain the first-order condition, we differentiate the utility function with respect to \(q_1\) and set it equal to zero:

\(\delta U / \delta q_1 = \rho(q_1^{(\rho-1)} + \rho[p_2(Y - p_1q_1)/p_2]^{(\rho-1)}(-p_1/p_2)) = 0\)

Simplifying and solving for \(q_1\):

\(\rho q_1^{(\rho-1)} - \rho(p_1/p_2)[p_2(Y - p_1q_1)/p_2]^{(\rho-1)} = 0\)

\(\rho q_1^{(\rho-1)} - \rho(p_1/p_2)[Y - p_1q_1]^{(\rho-1)} = 0\)

\(\rho q_1^{(\rho-1)} = \rho(p_1/p_2)[Y - p_1q_1]^{(\rho-1)}\)

\(q_1^{(\rho-1)} = (p_1/p_2)[Y - p_1q_1]^{(\rho-1)\)

\(q_1^{(\rho-1)} = (p_1/p_2)^{(1-\rho)}[Y - p_1q_1]^{(\rho-1)}\)

\(q_1^{(\rho-1)} = (p_1/p_2)^{(1-\rho)}(Y - p_1q_1)^{(\rho-1)}\)

\(q_1^{(\rho-1)} = (p_1/p_2)^{(1-\rho)}(Y^{(\rho-1)} - (\rho-1)p_1q_1(Y - p_1q_1)^{(\rho-2)})\)

  This equation represents Michael's optimal \(q_1\) as a function of his income (Y) and the prices (\(p_1\) and \(p_2\)).

3. Similarly, we can derive a similar expression for his optimal \(q_2\):

\(q_2^{(\rho-1)} = (p_2/p_1)^(1-\rho)(Y^{(\rho-1)} - (\rho-1)p_2q_2(Y - p_1q_2)^{(\rho-2)})\)

  This equation represents Michael's optimal \(q_2\) as a function of his income (Y) and the prices (\(p_1\) and \(p_2\)).

Therefore, these equations, which depend on Michael's income and the prices of the commodities, determine the ideal values of \(q_1\) and \(q_2\).

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Answer:

Explanation:

given:

jogger displacement (distance) = 0.200 km

time = 16.5 sec.

find:

1. velocity in m/s

2. velocity in km/hr.

solution:

velocity = distance / time

1.  velocity = 0.200 km x   1000 m

                     16.5 sec             1 km

                  = 12.1 m/s.

2.  velocity = 0.200 km x   3600 sec.

                     16.5 sec             1 hr.

                   = 43.3 km/hr.

Answer:

Explanation:

Time taken by jogger to travel the distance to finishing line = 2.1 / 7.3

= .28767 hr

Bird will keep flying for this time period

distance covered by bird = speed x time

= 29.2 x .28767 km

= 8.4 km .

Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. Therefore, the frequency of wave is 25 Hz.

Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave

speed of wave= distance travelled by wave ÷ time taken by the wave

speed of wave=  5,000m/s

distance travelled by wave = wavelength of wave = 200 meters

Substituting all the given values in the above equation, we get

5,000m/s=  200 meters ÷ time taken by the wave

time taken by the wave= 0.04 s

Frequency = 1 ÷time taken by the wave

                  = 1÷0.04

                  =25 Hz

Therefore, the frequency of wave is 25 Hz.

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