step 1: claim (2pts) - answer: to what extent do you think humans have truly impacted the ecological balance of our planet? step 2: evidence (5pts) - provide at least 3 pieces of credible evidence that support your claim. - your evidence can come from: learning from previous units in ecology or the video you just watched. step 3: reasoning (5pts) - your reasoning should consist of the ecological principles that explain how your evidence supports your claim. - every piece of evidence you provide must be backed up with reasoning. step 4: conclusion (3pts) - answer the question: what can we do to stop what we have started? how can we fix the problem?

Explanation:

'What is the magnitude of the force needed to stop the horses and bring the box into equilibrium?' ≈42N; according to the vectors rules.

'Where would you locate the rope to apply the force?' - in point D.

PS. zoom out the attached picture.

The stability of styrene in toluene is due to lower styrene concentration, slowing bimolecular polymerization steps (option c).

The reason for the longer stability of a styrene solution in toluene compared to pure styrene is due to the lower concentration of styrene in the toluene solution.

This results in slower bimolecular polymerization steps, as all the styrene molecules are not in close proximity to react with each other. The rate constant for polymerization of styrene is not necessarily larger in toluene, and the order of the reaction does not increase in toluene.

Additionally, the fact that styrene has a higher molecular weight than toluene does not necessarily affect the stability of the solution.

Therefore, the lower concentration of styrene in toluene is the most significant factor in its increased stability. Thus, the correct option is c,

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Answer:

The friend has more kinetic energy

Explanation:

This person is going faster than the other.

The correct answer is B) 6.04A. In a rectifier circuit, the current output is directly proportional to the voltage input, according to Ohm's Law (V = IR), where V is voltage, I is current, and R is resistance.

Given:

Voltage input (before doubling): 5.9V

Current output: 3.02A

If the voltage output of the rectifier doubles, the new voltage output would be 5.9V x 2 = 11.8V (assuming all else remains equal).

Using the current-voltage relationship, we can calculate the new current output:

I = V/R

Where V is the new voltage output (11.8V) and R is the resistance of the rectifier circuit (which remains constant in this case).

Plugging in the values:

I = 11.8V / R

Since we do not have information about the resistance of the rectifier circuit, we cannot determine the exact value of the new current output. Therefore, the correct answer is D) not enough information.

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Answer:

v_f = -7.5 m / s

Explanation:

Let's analyze this exercise a little, two forces that act on a body for different time intervals are indicated, each force creates an impulse and since this is a vector quantity we must add in the form of vectors. The net momentum is

we assume that the direction to the right is positive

             I = I₁ + I₂

             I = F₁ Δt₁ - F₂ Δt₂

             I = 3  1.5 - 4  3

             I = -7.5   N s

now let's use the relationship between momentum and momentum, suppose the object starts from rest (vo = 0)

             I = Δp

             I = m (v_f - v₀)

             v_f = I / m

              v_f = -7.5 / m

to finish the calculation we must assume a mass m = 1 kg

              v_f = -7.5 m / s

the negative sign in the body is moving to the left

The longest wavelength visible to the human eye is approximately 700 nanometers (nm).

Visible light ranges in wavelength from around 400 nanometers (violet) to around 700 nanometers (red).

While our eyes can detect these wavelengths, they don't see all wavelengths of electromagnetic radiation (EMR).

The portion of the EMR spectrum visible to our eyes is referred to as visible light, which includes wavelengths ranging from 400 nanometers (violet) to 700 nanometers (red).

Hence, the longest wavelength visible to the human eye is around 700 nm. This is the  answer to the question.

In conclusion, the longest wavelength visible to the human eye is approximately 700 nanometers (nm). The human eye can see visible light ranging from 400 nanometers (violet) to 700 nanometers (red).

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Explanation:

wave is a disturbance that carries energy from one particle to another particle. The speed depends on:

1. The type of medium

2. The temperature of the medium

3. The energy of the wave

4. The amplitude of the wave

Answer:

i think the last 3

Explanation:

The femur can withstand a compression of about 4.1945 mm before breaking.

We can use the formula for compressive stress to calculate the amount of compression that the femur bone can withstand before breaking:

Stress = Force / Area

where the force is the force applied to the bone and the area is the cross-sectional area of the bone.

To find the cross-sectional area of the femur bone, we can assume that it has a circular cross-section and use the formula:

Area = πr^2

where r is the radius of the cross-section.

Since the length of the femur bone is 0.5 m, we can assume that the cross-sectional area remains constant along its length.

Let's assume that the force required to break the bone is the maximum compressive stress that it can withstand, which is 1.51 × 10^8 Pa. We can rearrange the stress formula to solve for the force.

We can use the equation for strain under compression:

strain = stress / Young's modulus

where stress is the maximum stress the bone can withstand before breaking, and Young's modulus is a measure of the stiffness of the material. The strain is a measure of how much the bone compresses under stress.

To find the compression distance, we can rearrange this equation to solve for the compression distance:

compression distance = strain x original length

where the original length is the length of the bone before compression

Substituting the given values:

stress = 1.51 × 10^8 Pa

Young's modulus = 1.8 × 10^10 Pa

original length = 0.5 m

First, we can calculate the strain:

strain = stress / Young's modulus = (1.51 × 10^8 Pa) / (1.8 × 10^10 Pa) ≈ 0.008389

Next, we can calculate the compression distance:

compression distance = strain x original length = (0.008389) x (0.5 m) = 0.0041945 m

Finally, we can convert the result to millimeters:

compression distance = 0.0041945 m x (1000 mm/m) = 4.1945 mm

Therefore, the femur can withstand a compression of about 4.1945 mm before breaking using Stress = Force / Area

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Answer:

Gold is metallic, with a yellow color when in a mass, but when finely divided it may be black, ruby, or purple. It is the most malleable and ductile metal; 1 ounce (28 g) of gold can be beaten out to 300 square feet. It is a soft metal and is usually alloyed to give it more strength.

Formula  --

Molecular Weight (lb/m o l)  28.96

Critical Temp. (°F)  N/A

Critical Pressure (p s i a)  N/A

Boiling Point (°F)  -317.8

Melting Point (°F)  N/A

Psat  70°F (p s i a)  (note 1)

Explanation:

Answer:2.67

Explanation:

Nun

The given problem can be exemplified in the following diagram:

The weight of the bar is concentrated in its center of mass which is located in the middle of the longitude of the bar. We can add the total torques at the point where the pivot touches the bar and we get:

Here we have used momentum counter-clockwise as positive. Since the system is in equilibrium the sum of the torques must be equal to zero:

Now we solve the operations, we will use for the acceleration of gravity 9.8 meters per second squared:

Now we solve for the mass "M" first by subtracting 88.2Nm from both sides:

Now we divide both sides by -1.96:

Solving the operations we get:

Therefore, the mass of the bar is 45 kg.

Answer:

Density is defined as how tightly or loosely packed a substance is, or to the number of things or people in a certain area.

Explanation:

\(\sf{}\)

Answer:

No

Explanation:

We would not be able to see the star because its radiation is in the UV range. For the star to be visible, it has to be in the visible spectrum of light for me to be able to see it with my eyes.

Complete question

A rigid tank is divided into two equal parts by a partition. One part of the tank contains 2.5 kg of compressed liquid water at 400 kPa and 60

60 ∘ C while the other part is evacuated. The partition is now removed, and the water expands to fill the entire tank. Determine the entropy change of water during this process, if the final pressure in the tank is 40 kPa.

Water expands to fill the entire tank. For a final pressure of 10 kPa, the final water temperature is 60°c and the tank volume is 2245.4.

The energy balance:

\(E_{in} -E_{out} =\) Δ\(E_{system}\)

So, therefore

0 = ΔU \(mm(u_{2} -u_{1} )\)

\(u_{1} =u_{2}\)

Water's characteristics are listed in tables A = 4 and A-6.

\(p_{1} = 600 kpa\)

\(T_{1}\) = 60°c

⇒ \(v_{1} = v_{f}\)

⇒ 60°c = 0.001017

⇒ \(u_{1} =u_{f}\)

⇒ 60°c = 251.16

Confirmed whether we receive quality between 0 and 1.

\(P_{2}\) = 10kpa

\((u_{2}-u_{1} )\)

We have \(v_{f}\) = 0.001010,

v = 14.670

\(u_{f}\) = 191.79,

\(v_{f}\) = 2245.4

So, therefore, water expands to fill the whole tank. For a final pressure of 10 kPa, the very last water temperature is 60°c and the tank quantity is 2245.4.

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Forces can be divided into primarily into two types of forces: Contact Forces. Non-contact Forces.

In physics, pressure is an influence that can trade the motion of an item. A force can reason an item with mass to exchange its velocity (e.g. transferring from a country of rest), i.e., to boost up. force can also be described intuitively as a push or a pull. A pressure has each importance and route, making it a vector quantity. it's far measured in the SI unit of newton (N). force is represented by way of the image F (previously P).

The unique form of Newton's 2d law states that the internet force appearing upon an object is equal to the fee at which its momentum changes with time. If the mass of the item is constant, this law means that the acceleration of an item is at once proportional to the net force performing on the item, is in the path of the net force, and is inversely proportional to the mass of the object.

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If you keep them exactly the same distance apart, then wrapping the soccer ball in layers of duct tap will increase he gravitational force between them, because the mass of the soccer ball will increase slightly.

The gravitational force between the baseball and a soccer ball will increase by wrapping the soccer ball in layers of duct tap.

The given problem is based on the concept and fundamentals of gravitational force. The force come into play between the objects on Earth and Earth itself on account of gravity, is known as the gravitational force.

Now considering the given problem, the mathematical expression for the gravitational force is,

\(F = \dfrac{G \times m \times M}{r^{2}}\)

Here,

G is the universal gravitational constant.

m is the mass of baseball.

M is the mass of Soccer ball.

r is the distance between the baseball and Soccer ball.

Clearly, the gravitational force is directly proportional to the masses of Baseball and soccer ball and inversely proportional to the square of distance between them.

So, in order to increase the gravitational force, we need to bring both the balls closer because the masses of each balls remains constant. And this is achieved by wrapping the soccer ball in layers of duct tap.

Thus, we can conclude that the gravitational force between the baseball and a soccer ball will increase by wrapping the soccer ball in layers of duct tap.

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Answer:

12.32 m/\(s^{2}\)

Explanation:

We use the formula F = ma

∴ F is force, m is mass and a is acceleration.

F = 34.5 x \(10^{6}\) N

m = 2.8 x \(10^{6}\) kg

a = ?

Substituting the values in the formula;

34.5 x \(10^{6}\) = 2.8 x \(10^{6}\) x a

a = (34.5 x \(10^{6}\))/(2.8 x \(10^{6}\))

a = 12.32 m/\(s^{2}\)

Explanation:

using Ohm's law which is defined as V=IR

where V is the voltage, I is the current and R the resistance

As the slit separation in a double-slit experiment is increased, several changes can be observed in the resulting interference pattern:

Wider Fringes: The fringes, or bands of constructive and destructive interference, become wider. This is because increasing the slit separation leads to a larger distance between the two interfering waves, resulting in a greater variation in the path length difference.

Smaller Angular Spacing: The angular spacing between adjacent bright or dark fringes decreases. This means that the pattern becomes more compressed, with the fringes appearing closer together as the slit separation increases.

Diminished Intensity: The intensity of the bright fringes decreases. As the slit separation increases, the interference becomes less pronounced, resulting in a reduction in the brightness of the fringes.

Decreased Visibility of Interference Pattern: If the slit separation becomes too large, the interference pattern may start to fade away. The individual slits start to act more like separate light sources, and the characteristic interference pattern becomes less distinct.

Overall, increasing the slit separation in a double-slit experiment alters the appearance of the interference pattern, leading to wider fringes, smaller angular spacing, diminished intensity, and potentially reduced visibility of the interference effects.

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The load value for interrupts every one milliseconds is

\(\begin{aligned}&\mathrm{val}=1 \times 10^{-3} \times 4.094 \times 10^6 \\&\Rightarrow \mathrm{val}=4094\end{aligned}\)

The load value for interrupts every millisecond is

\(\begin{aligned}&\mathrm{val}=1 \times 10^{-6} \times 4.094 \times 10^6 \\&\Rightarrow \mathrm{val}=4.094\end{aligned}\)

However, we can only load integer values, therefore we apply

\(\Rightarrow v a l \approx 4\)

When the delay is 1 ms, it is accurate, but when the delay is 1 us, it is a little bit less. We are unable to provide an accurate 1 us delay interrupt because this requires a fractional value was calculated.

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The correct statement regarding the power consumed by two electric space heaters connected in series to the same voltage is:

Statement I: Each heater consumes 500 W; therefore, two of them will consume 500 W + 500 W = 1000 W.

Connecting the heaters in series does not change the power rating of each individual heater. Therefore, when two heaters are connected in series, the total power consumed will be the sum of the power consumed by each heater separately. Hence, the power consumed by the two heaters connected in series is equal to 1000 W.

Statement II and III are incorrect because connecting the heaters in series does not double the resistance or change the power consumption based on the resistance squared.

Therefore, the power consumed by the two heaters connected in series is equal to 1000 W.

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Answer:

468.42572 Wavelength In Metres

Explanation:

Answer:

\(\huge\boxed{\sf Wavelength= 470\ m}\)

Explanation:

Given Data:

Speed of light = c = 3 × 10⁸ m/s (Constant)

Frequency = f = 640 kHz = 6.4 × 10² × 10³ Hz = 6.4 × 10⁵ Hz

Required:

Wavelength = λ = ?

Formula:

λ = c / f

Solution:

λ = 3 × 10⁸ / 6.4 × 10⁵

λ = 0.47 × 10³

λ = 4.7 × 10² m

λ = 470 m

\(\rule[225]{225}{2}\)

Hope this helped!

440 W  is the power output of the secondary coil.

primary  coil current = ip = 4A

primary coil  voltage = vp = 110v

power out put of secondary coil

p = vi

  = 110v * 4A = 440W.

What is power?

Power is the amount of work completed in a given amount of time. Watt (W), which is derived from joules per second (J/s), is the SI unit of power. Horsepower (hp), which is roughly equivalent to 745.7 watts, is a unit of measurement sometimes used to describe the power of motor vehicles and other devices.

The rate at which work is performed on an object is referred to as its power. Power is a temporal concept. It has to do with how quickly a task gets completed. The power equation is described below.

Power = Time + Work

P = W / t

Therefore, 440 W is the power output of secondary coil. The standard metric unit for power is a Joule/second, which is defined as the product of the standard metric units of work (the Joule) and time (the second).

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Answer:drfdcfrfvgtgy6hbhhbhyg vcfrfr5tgvcfrtg vcdftghegthetrgbdgtthethe3thet

Explanation:

Sdwerftyrujtnyhbvcrdefgswthyujdehrtgfyhrjfuygtdhjueyrtgehwu3y4tgrehjwheyrgdhbnsjhfgvbdnhgfdhjsdehbrvbdensdvfgreyhsdgrftyhedggrfdhsgfv

Answer:

The answer is B, velocity.

Explanation:

Just took the quiz. Hope this helps! Please count as braniliest.

Answer:

The answer is velocity.

Explanation:

Remember velocity is the speed of something in a given direction.

and beside i just took the quiz ♡

The statements true in regards to heat is 3. Heat is a form of energy, can be reflected by a mirror, and cannot pass through a vacuum.

Heat is a form of energy. Heat is the transfer of thermal energy from one object to another. Thermal energy is the energy of motion of the particles in an object. Heat can be reflected by a mirror. Heat is a form of electromagnetic radiation, and electromagnetic radiation can be reflected by mirrors.

Heat cannot pass through a vacuum. Heat is a form of electromagnetic radiation, and electromagnetic radiation cannot pass through a vacuum. Heat is not an electromagnetic radiation. It is a form of energy that is transferred from one object to another because of a difference in temperature.

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Complete question:

Which of the following statements are true regarding heat?

(a) Heat is a form of energy

(b) Heat can be reflected by mirror

(c) Heat is an electromagnetic radiation

(d) Heat can pass through vacuum

Select the correct answer from the codes given below :

1. 1, 2 and 3

2. 2, 3 and 4

3. 1, 2 and 4

4. 1, 3 and 4

Answer:

atoms

Explanation:

they are the smallest

Answer:

4452 m

Explanation:

When a patient go on a diet, he or she will lose both the mass and weight.

Mass is the quantity of an object while weight is the gravitational pull on an object. Mass is constant while weight is not. The unit of mass is Kg while weight is Newton.

Suppose a doctor advises a patient to go on a diet. Will the patient lose mass in the process or will he/she lose weight?

When a patient is on diet, he or she will deprive himself of certain nutrition that can nourish the body. Some of the masses of the body will be converted to energy thereby causing less fat in the body, decrease in body fluid and muscle mass.

Since Weight W = mg, decrease in body mass will eventually lead to weight loss.

Therefore, when a patient go on a diet, he or she will lose both the mass and weight.

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