The Equilibrium Rule states that the vector sum of all forces acting on an object with zero acceleration is equal to zero, this is definition of?

Answer:

14 miles per hour

Explanation:

You have to divide 56 miles by four hours to get 14 miles per hour

Answer:

D.Earth was the center of the universe

Explanation:

In the geocentric model of the solar system, the earth was the center of the universe and the sun and planets orbited around it. As the oldest model that sought to understand the functioning of the solar system, it was little contested due to the difficulty of scientific resources for further investigation.

Gradually this model was shaping and being restructured, as new studies, equipment and technologies appeared that could help astronomers and physicists to develop the current theory, that in reality the sun is the center of the solar system.

Answer:

D

Explanation:

The equation used to relate the heat absorbed by a substance to its specific heat, mass, and change in temperature is Q = mcΔT.

This equation is known as the heat equation or the heat transfer equation. It is based on the principle of conservation of energy, which states that energy cannot be created or destroyed, only transferred from one form to another. In this case, the energy is transferred in the form of heat.

The specific heat of a substance is the amount of heat required to raise the temperature of one unit of mass of the substance by one degree Celsius or Kelvin. The heat equation allows us to calculate the amount of heat absorbed by a substance when its mass, specific heat, and change in temperature are known.

This equation is commonly used in physics, chemistry, and engineering to calculate the amount of heat transferred in various processes.

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In dwelling unit basements, at least one receptacle outlet must be installed in addition to the laundry outlet.

What determines the minimum number of receptacles in a given dwelling?

The amount of wall space determines the minimum number of receptacle outlets in a given dwelling. Wall space is measured horizontally along the floor line. Although the Code spells out requirements for the minimum number of receptacles in a dwelling, it does not limit the number of receptacle outlets.

The receptacle definition of electrical receptacles are types of sockets or outlets that provide a location in a system where the wire can be inserted to provide electrical current.

What is the receptacle used for?

Electrical outlets, also known as receptacles, are sockets that are used to establish an electrical connection between an electronic device and power supply.

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Answer:

Momentum = 2,400 Pa

Explanation:

Given:

Total mass = 60 kg

Distance travel = 200 m

Time = 5 sec

Find:

Momentum

Computation:

Velocity = Distance / time

Velocity = 200 / 5

Velocity = 40 m/s

Momentum = Mass x Velocity

Momentum = 60 x 40

Momentum = 2,400 Pa

A freight train with an initial velocity of v0 m/s accelerates at a rate of a m/s² to reach a final velocity v in t minutes. (a) In a sketch, the initial velocity v0 and the final velocity v will have the same direction, indicating that the train is speeding up.

In this scenario, the sketch would depict an arrow representing the initial velocity v0 pointing in a certain direction, and an arrow representing the final velocity v, also pointing in the same direction. This indicates that the train is accelerating, increasing its velocity over time.

The direction of the arrows indicates the direction of motion. If the initial velocity v0 is in the positive direction (e.g., to the right), then the final velocity v would also be in the same positive direction. This indicates that the train is speeding up in the same direction as its initial motion.

The acceleration rate a determines how quickly the train's velocity increases. If a is positive, the train is accelerating in the same direction as its initial motion. If a is negative, the train is decelerating or slowing down. The time t represents the duration of the acceleration process.

Overall, the sketch visually represents the concept of a freight train starting with an initial velocity and accelerating to reach a higher final velocity in a given amount of time.

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Answer:

matter is the correct answer.

C. The object with the larger radius has a faster tangential speed.

Tangential speed is the linear component of the speed of any object which is moving along a circular path.

v = ωr

where;

If both object the same center point, they will have the same angular speed but different tangential speed due to their location from the center point.

Thus, the object with the larger radius has a faster tangential speed.

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The terrestrial planet elements are developed by stars that lived and were destroyed before the formation of the solar system.

What exactly are the terrestrial planets?

A planet that is predominantly made of silicate rocks or metals is referred to as a "terrestrial planet." It's also known as the "telluric" or "rocky" planet.

How do terrestrial planets develop?

The terrestrial planets formed close to the sun, where temperatures were well suited for rock and metal to condense. The Jovian planets formed outside of what is called the frost line, where temperatures were low enough for ice condensation.

They were created either by the accretion of millimeter-sized "pebbles" from the outer solar system floating toward the sun or by collisions with planetary embryos from the inner solar system. Over millions of years, rocky planets like Earth evolve, followed by gas giants like Jupiter that grow out of rocky cores.

Hence, the elements are developed by stars and were destroyed before solar system.

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Answer:

500m

Explanation:

because 250+250 goood

The work done by the pump to fill the tank is 10,483,200 foot-pounds.

Given the following data: Volume of the water tank = 1200 cubic feet

The discharge pipe is located 140 feet above the level in a lake

The pump is used to lift water from the lake to discharge the pipe

Work done is the force applied to an object and the distance through which that force is applied. It can be calculated using the formula,

Work done = force × distance

- Here, the force required is the weight of the water and distance is the height it is lifted.

Force = Weight = Density × Volume (where density of water = 62.4 lb/ft³)

Force = 62.4 × 1200 = 74,880 pounds

- Therefore, the work done by the pump to fill the tank is

Work done = force × distance

Work done = 74,880 × 140

Work done = 10,483,200 foot-pounds.

Therefore, the work done by the pump to fill water tank with a volume of 1200 cubic feet is 10,483,200 foot-pounds.

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The image of Source 2 will be closer to her eye than the image of Source 1 when the person is looking at the images in the mirror.

To answer your question, let's go through the steps to understand the situation and the terms involved.

1. Two point sources of light, Source 1 and Source 2, are placed in front of a flat mirror. Source 2 is closer to the mirror and Source 1 is further away.

2. A person is observing the images of the two sources in the mirror.

Now, let's analyze the situation to determine which image is closer to the person's eye.

In a flat mirror, the distance between an object and its image is the same as the distance between the object and the mirror. This means that the image of Source 2 will be at the same distance from the mirror as Source 2, and the image of Source 1 will be at the same distance from the mirror as Source 1.

Since Source 2 is closer to the mirror, its image will also be closer to the mirror than the image of Source 1. Therefore, when the person is looking at the images in the mirror, the image of Source 2 will be closer to her eye than the image of Source 1.

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Answer:

F = 3000 N

Explanation:

Let's use the relationship between momentum and momentum

         I =  Δp

         F t = m v_f - m v₀

As the body when bouncing reaches the same height from which it begins to fall, the modulus of speed is the same, but in the opposite direction,

         v_f = - v₀ = v

         F t = m 2v

         F = 2 m v / t          (1)

This is the contact time t = 0.5 ms = 0.5 10⁻³ s

Let's use the kinematics to find the velocity at the point of touching the plate, as the total travel time is 3.0 s, the descent time must be half the total time

          t = 1.5 s

as the body solved its initial velocity is zero

         v = v₀ + g t

         v = g t

         v = 9.8  1.5

         v = 14.7 m / s

we substitute in equation 1

         F = 2 0.051 14.7 / 0.5 10-3

         F = 2,999 103 N

        F = 3000 N

The average force that the plate exerted on the ball is 3,000 N.

The given parameters;

The velocity of the ball is calculated as follows;

\(v = g\Delta t\\\\v = 9.8 \times 3\\\\v = 29.4 \ m/s\)

The average force that the plate exerted on the ball is calculated as follows;

\(F = \frac{mv}{t} \\\\F = \frac{0.051 \times 29.4}{0.5 \times 10^{-3} } \\\\F = 3,000 \ N\)

Thus, the average force that the plate exerted on the ball is 3,000 N.

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Answer:

0.03 Joules have been converted into other forms of energy as the direct result of the collision.

Explanation:

Let's start studying the conservation of momentum for the system:

\(P_i=P_f\\(0.25\,kg)\,{0.6\,m/s)+(0.5\,kg)\,(0\,m/s)=(0.25\,kg+0.5\,kg)\, v_f \\\\\\ 0.15\,kg\,m/s=0.75\,kg\,\,v_f\\v_f=0.15/0.75\,\,m/s\\v_f=0.2\,\,m/s\)

Now that we know the speed of the newly created object, we can calculate how the final kinetic energy differs from the initial one:

\(K_i=\frac{1}{2} (0.25)\,(0.6)^2+\frac{1}{2} (0.5)\,(0)^2=0.045\,\,J\\ \\K_f=\frac{1}{2} (0.75)\,(0.2)^2=0.015\,\,J\\\)

Then, when we subtract one from the other, we can estimate how much kinetic energy has been converted into other forms of energy in the collision:

0.045 J - 0.015 J = 0.03 J

Answer:

Its upside down

Explanation:

I recommend asking a teacher for help

Answer:

1.02 m

Explanation:

We are here given that ,

We need to find out the compression in the spring. As we know that,

\(\longrightarrow E = \dfrac{1}{2}kx^2 \\\)

where \(x\) is the compression in the spring. So that,

\(\longrightarrow 30,000 J = \dfrac{1}{2}\times 50,000 \times x^2 \\\)

\(\longrightarrow x^2=\dfrac{60,000}{50,000} \\\)

\(\longrightarrow x^2=\dfrac{6}{5}= 1.2m^2\\\)

\(\longrightarrow x=\sqrt{1.2} m \\\)

\(\longrightarrow \underline{\underline{ x \approx 1.02 \ m }} \\\)

and we are done!

Answer:

The PPC Cycle refers to Production Planning Control. It has 3 phases—preplanning, planning, controlling. The Pre-Planning Phase consists of product development, sales forecasting, factory or plant layout, equipment selection policy, and preplanning of production just prior to large scale production.

The ozone layer is a region of the Earth's stratosphere that contains a high concentration of ozone (O3) molecules.

It plays a crucial role in protecting life on Earth by absorbing the majority of the Sun's harmful ultraviolet (UV) radiation. The depletion of the ozone layer, primarily caused by human activities, leads to an increase in UV radiation reaching the Earth's surface. This has significant adverse effects on human health, ecosystems, and the environment.

The ozone layer is located in the Earth's stratosphere, approximately 10 to 50 kilometers above the surface. It is formed by the interaction of UV radiation from the Sun with oxygen molecules (O2). The UV radiation breaks apart the oxygen molecules, and the resulting oxygen atoms (O) combine with other oxygen molecules to form ozone (O3).

The ozone layer is essential because it acts as a shield, absorbing the majority of the Sun's UV-B and UV-C radiation, preventing it from reaching the Earth's surface. UV radiation is harmful to living organisms, as it can cause DNA damage, skin cancer, cataracts, and weakened immune systems. The ozone layer's ability to filter out these harmful rays helps protect human health and supports the functioning of ecosystems.

However, human activities have significantly contributed to the depletion of the ozone layer, primarily through the release of certain chemicals known as ozone-depleting substances (ODS), such as chlorofluorocarbons (CFCs) and halons. These substances were commonly used in aerosols, refrigeration, air conditioning, and fire suppression systems. Once released into the atmosphere, ODS molecules can reach the stratosphere and undergo reactions that break down ozone molecules.

The depletion of the ozone layer has several detrimental effects. Increased UV radiation reaching the Earth's surface can lead to an increase in skin cancer cases, cataracts, and other health issues in humans. UV radiation also harms phytoplankton, which are vital for marine ecosystems and the global carbon cycle. Additionally, UV radiation can negatively impact terrestrial and aquatic ecosystems, causing DNA damage, reduced plant growth, disruption of food chains, and harm to coral reefs and other sensitive marine organisms.

Recognizing the importance of protecting the ozone layer, the international community developed the Montreal Protocol in 1987, which aims to phase out the production and use of ODS. Through global efforts to reduce ODS emissions, there has been a gradual recovery of the ozone layer in recent years.

In short , the ozone layer acts as a natural shield, protecting life on Earth from harmful UV radiation. The depletion of the ozone layer due to human activities has severe consequences for human health, ecosystems, and the environment. It is crucial to continue efforts to reduce ozone-depleting substances and preserve the integrity of the ozone layer for the well-being of present and future generations.

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Answer:

analyze

Explanation:

Answer:

2 hours

Explanation:

If you run off the pavement, you should turn the steering wheel quickly toward the road and is denoted as option C.

This is a path which is found in almost all roads and is designed to enhance foot traffic in most climes. This is the path where individuals walk so as not to get hit down by a vehicle.

In a situation where a car runs into the pavement, the best choice is to turn the steering wheel quickly toward the road as braking hard could damage the brakes of the car and cause accident in subsequent trips.

This is therefore why option C was chosen as the correct choice.

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Answer: Steer straight and slow down before attempting

Explanation:

Answer:

Density= 2.78 g/cm³

Relative density=2.8

Explanation:

To calculate the density of the cube we have to use the formula ρ=mass/volume

ρ stands for density.

So now we don't have the volume of the cube and to find the volume of the cube we have to use the formula a³

3³= 9 cm³

Now plug in the values. ρ= 25 g/9 cm³

ρ= 2.78 g/cm³

To find the relative density, we have to use the formula ρsample/ρH20

The sample means the density of the substance earlier. We do not know the density of water but it is constant at 997 kg/m³.

Now we have to make the units same so you change the unit of the density of cube to kg/m³

So, 25/1000= 0.025 kg

9/100×100×100 (because cm³ which means that there should be 3 meters to change the unit and to conver cm to meter we need to divide by 100 so 9cm/100, 9cm²/100×100, 9cm³/100×100×100)

=0.000009 m³

The new density= 0.025 kg/ 0.000009 m³

= 2777.78 kg/m³

Now plug the values into the formula:

relative density= 2.777.78 kg/m³ / 997 kg/m³

=2.8

There is no unit since kg/m³ and kg/m³ cancels

Answer:

wind power can be tracked back to sunlight since sunlight is one of the causes of moving air which is wind .

High temperature causes air to expand causing it to spread over a wider area decreasing it's pressure compared to places of lower temperature which causes air to contract causing a concentration of air molecules which increases its pressure . This two processes causes a pressure difference which leads to movement of air (wind) whose energy can be used to generate wind power.

When installing more than one pressure relief valve, they must be installed in parallel with each other. Installing pressure relief valves in parallel ensures redundancy and enhances the safety of the system. If one valve fails to operate or becomes blocked, the other valve(s) will still be able to relieve pressure and prevent overpressurization.

Leaks in gaskets or fittings can indeed cause air and moisture to enter the system. Gaskets and fittings play a crucial role in maintaining the integrity of a system, and any leakage can lead to the ingress of contaminants, including air and moisture. This can adversely affect the performance and reliability of the system, potentially leading to corrosion, reduced efficiency, and compromised safety.

Regarding the statement about liquid removal and vapor recovery, it appears to be unrelated to the topic of pressure relief valves and their installation. Liquid removal and vapor recovery are typically associated with specific processes or systems designed for separating liquids and vapors, such as in distillation or vapor recovery units.

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Total Cost is =  $107,380 if The farm is 340 acres and had corn planted  add fertilizer to the soil before you plant this years' crop.

A fertiliser is a natural or artificial substance containing chemical elements (such as Nitrogen (N), Phosphorus (P) and Potassium (K)) that improve growth and productiveness of plants. Some synonyms include the terms "enrichment" or "plant nutrient".

Without fertilizers, nature struggles to replenish the nutrients in the soil. When crops are harvested, important nutrients are removed from the soil, because they follow the crop and end up at the dinner table. If the soil is not replenished with nutrients through fertilizing, crop yields will deteriorate over time.

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The converse of the statement "No pilots are mechanics" is No mechanics are pilots.

Hence, the correct option is A.

The converse of a statement switches the subject and the predicate and negates both. In the original statement, the subject is "pilots" and the predicate is "mechanics."

The original statement states that there is no overlap between pilots and mechanics. In the converse statement, the subject becomes "mechanics" and the predicate becomes "pilots," and it still states that there is no overlap between the two groups.

Therefore, The converse of the statement "No pilots are mechanics" is No mechanics are pilots.

Hence, the correct option is A.

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Answer: Most likely purple

Explanation:

Answer:

Purple?

Explanation:

I'm confused what you are asking.

We can see the star sirius and its companion, the pup, moving around each other. Careful measurement of this motion can provide the masses of both stars in the system.

How do stars move?

The stars in our galaxy are all said to be orbiting in a nearly circular path around the center of the galaxy because the immense combined mass of the galaxy, which is mostly near the center, creates immense gravity that pulls all the stars in our galaxy into circular orbits.

The study of astronomy has helped us to understand that Stars rise in the northeast and set in the northwest, moving in counter-clockwise circles around a point that's high above the northern horizon.

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