Which image represents two equal displacements?

The force constant of this stretched spring is equal to 200 N/m.

Given the following data:

Conversion:

Extension = 4 centimeters = \(\frac{4}{100} = 0.04\; meters\)

To calculate the force constant of a stretched spring, we would apply Hooke's law:

First of all, we would determine the force acting on the spring.

\(Force = mg\\\\Force = 0.8 \times 10\)

Force = 8 Newton

Mathematically, Hooke's law force is given by the formula:

\(F = ke\)

Where:

Substituting the given values into the above formula, we have:

\(8 = k\times 0.04\\\\k = \frac{8}{0.04}\)

Spring constant, k = 200 N/m

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Answer:

u don't know this one but try a not for sure

Answer:

C a fast-moving cold front moved through the area.

Explanation:

This is because, since there is a there is a thunderstorm and high winds in the area, this can only be caused by a fast moving front. Also there is a temperature drop, this can only be caused by the fast moving cold front since a cold front has a low temperature.

Thus, for the area to experience thunderstorms with high winds and a drop in temperature, a fast-moving cold front moved through the area.

Answer:

Explanation:

1)Solution,

Distance(s)=30m

Time taken(t)=11s

Now,

Average velocity=s/t=30m/11s=2.72m/s

2)Solution,

Distance(s)=20km=20x1000m=20000m

Time(t)=9:30-8:30=1:30=60+30 min=90min=90x60=5400s

Now,

Average velocity=s/t=20000m/5400s=3.7m/s

The chemical reactivity of an atom is determined by the number of electrons present in its outermost shell, also known as the valence electrons.

These electrons play a key role in determining the chemical properties of an atom, such as its reactivity and bonding behavior. An atom with a full or nearly full valence shell is less likely to engage in chemical reactions, while an atom with a partially filled valence shell is more reactive and readily participates in chemical reactions. Thus, the number of electrons in the valence shell is a critical factor in determining the chemical reactivity of an atom. Chemical reactivity refers to the ability of a substance to participate in chemical reactions and form new compounds. It is determined by various factors, including the arrangement of electrons in the outermost shell (valence electrons), the stability of the electronic configuration, and the energy required to break or form chemical bonds.

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a) The resistance of the bulb is 5 ohms.
b) With the reduced battery voltage of 1.2 V, the current flowing through the flashlight bulb would decrease to 240 mA.

(a) To calculate the resistance of the flashlight bulb, we can use Ohm's Law, which is defined as Voltage (V) = Current (I) x Resistance (R).

Given the current (I) of 300 mA (0.3 A) and the voltage (V) of 1.5 V.

we can rearrange the formula to solve for the resistance (R) as follows:

R = V/I.

R = 1.5 V / 0.3 A = 5 Ω

The resistance of the flashlight bulb is 5 ohms.

(b) If the battery voltage drops to 1.2 V, we can calculate the new current using Ohm's Law with the same resistance value.

I = V/R

I = 1.2 V / 5 Ω = 0.24 A (240 mA)

With the reduced battery voltage of 1.2 V, the current flowing through the flashlight bulb would decrease to 240 mA. This is because the relationship between voltage and current is directly proportional when resistance remains constant, as demonstrated by Ohm's Law. A decrease in voltage will result in a corresponding decrease in current.

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The rock will compress as the stress applied increases with depth and it will break when it cannot withstand the stress.

The pressure or stress on the rock is defined as force per unit area of the rock which equally increases with depth. This can be expressed as follows;

\(P= \frac{F}{A}\\\\P = \rho gh\)

where;

Thus, we can conclude that the stress on the rock will increase with increase in depth. The rock will compress as the stress applied increases with depth and it will break when it cannot withstand the stress.

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Answer:

587 N

Explanation:

So there is 198 N, 202 N, 187 N on the left

And 155 N, 252 N, 168 N on the right

So what I am thinking is adding them to get one answer for the left also one from the right.

Left : 202 + 198= 400 + 187= 587 N

Right : 155 + 252= 407 + 168= 575 N

Maybe the most force is greater

587 N > 575 N

Answer:

800N is the answer

Explanation:

hope it helps

The force between the objects is 200 N and when the distance between the objects is halved then the force between them will be equal to 800 N.

A force in physics is an input that has the power to change an object's motion. A mass-containing object's velocity can vary, or accelerate, as a result of a force. Intuitively, a push or a pull can also be used to describe forces.

Being such a vector quantity, a force does have magnitude and direction. The SI unit metric newton is used to measure it (N). The letter F stands for force.

According to Newton's second law's original formulation, an object's net force is equal to the speed that its momentum is changing over time.

As per the given information in the question,

Force, F = 200 N

F1 = G × m₁m₂/ r²

The final force F' = G × m₁m₂/ (r/2)²

= 4G × m₁m₂/ r²

= 4F

So, when the distance between objects is halved, then the force between them increases to 4 times.

So, the force will be,

4F = 4 × 200

= 800 N.

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Answer: I think a

Explanation:

One and a half miles of distance  is required for a train to stop when traveling 50 miles per hour.

Rate of change in position, or speed, is equal to distance traveled divided by time. To solve for time, divide the distance traveled by the rate.

Rearranging the formula,

Speed = distance / time.

Distance = speed × time.

Time = distance / speed.

Hence,

Distance = Speed × Time

⇒ Distance = 50 × 60 / 2000

⇒ Distance = 1.5 miles

⇒ Thus, the distance which is required to stop a train is 1.5 miles, which is, One and a half miles.

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The change in the momentum of the bus is 10600 kg-m/s, if bus of 1600 kg crashes with a SUV of 600 kg.

The mass of the bus, m₁ = 1600 kg

The mass of the SUV, m₂ = 600 kg

Initial velocity of the bus, v₁ = 10 m/s

initial velocity of the SUV, v₂ = 0 (at rest)

Velocity of the bus after collision, v₃ = 3 m/s

Velocity of the SUV after collision, v₄ = 1 m/s

The change in momentum(Δp) is given by,

Δp = (m₁v₁ + m₂v₂) - (m₁v₃ + m₂v₄)

Δp = (1600 × 10 + 600 × 0) - (1600 × 3 + 600 × 1)

Δp = 16000 - 5400

Δp = 10600 kg-m/s

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Answer:

11,520N

Explanation

According to Newtons second law

Net force = mass * acceleration

Given

Mass = 2560kg

acceleration = 4.5m/s^2

Substitute the given values into the formula

F = 2560 * 4.5

F = 11,520N

Hence the net force on the elevator is 11,520N

Now, we can simplify and calculate the electric flux:
Electric flux = (0.4623 / 8.8542) × (10^−9 / 10^−12) N · m^2 / C
Electric flux =\(52.21 × 10^3 N · m^2 / C\)
Electric flux = \(52.21 × 10^3 N · m^2 / C\)

Therefore, the electric flux through one face of the cube is\(52.21 × 10^3 N · m^2 / C.\)

To calculate the electric flux through one face of the cube, we can use Gauss's law. Gauss's law states that the electric flux through a closed surface is equal to the total charge enclosed divided by the permittivity of a vacuum.

1. Determine the total charge enclosed: In this case, the charge is placed at the center of the cube. Since the cube is symmetrical, the charge is enclosed by one face of the cube. Therefore, the total charge enclosed is 0.4623 nc.

2. Calculate the electric flux: The electric flux is equal to the total charge enclosed divided by the permittivity of a vacuum. The permittivity of a vacuum is given as \(8.8542 × 10^−12 C^2 / (N · m^2).\)

Electric flux = (Total charge enclosed) / (Permittivity of vacuum)
Electric flux = \(0.4623 nc / (8.8542 × 10^−12 C^2 / (N · m\)^2))

To simplify the units, we convert nanocoulombs (nc) to coulombs (C) by dividing by 10^9:
Electric flux\(= (0.4623 × 10^−9 C) / (8.8542 × 10^−12 C^2 / (N · m^2))\)

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Answer:

I think you are looking for the velocity, so the answer is 38.5 m/s

Explanation:

Velocity is giving by displacement/time. North will be positive and South will be negative, George travels 750 meters then travels -250 meters his displacement is then 750 - 250 or 500 meters. Divide that by 13 seconds to get 38.5 m/s.

Answer:

Francium.

I hope it will be useful.

Answer:

becauae of the gravity

Explanation:

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

They proposed that gravity is actually made of quantum particles, which they called "gravitons." Anywhere there is gravity, there would be gravitons: on earth, in solar systems, and most importantly in the miniscule infant universe where quantum fluctuations of gravitons sprung up, bending pockets of this tiny space

Solution :

As the charge is stationary, hence

\($F_m= qvB \sin \theta$\)

\($F_m=0$\)

Hence, no torque at all.

When the charge is moving in positive x direction and the field will be in the negative y direction outside the bar, then :

\($F = q(V \hat i \times B(- \hat j))$\)

    \($= -qV B (\hat i \times \hat j)$\)

    \($=qVB(- \hat k)$\)

Hence, the force have direction \($(- \hat k)$\).

When instead of charge, an iron nail is used, then there will be induced magnetic field in the soft iron. The nature of the pole induced will be opposite near tot he bar. That is the north pole will be induced near the south pole and vice versa. That is why whichever be the pole of magnet closest to iron will be attracted by iron.

The current definition of the standard kilogram of mass is based on Planck's constant and the Kibble balance.

The kilogram is one of the seven basic units of the International System of Units (SI) (the others are the meter, second, ampere, kelvin, mole, and candela), and it is used to measure mass.

For over a century, the standard kilogram was defined as the mass of a specific cylinder of platinum-iridium alloy kept at the International Bureau of Weights and Measures in France. However, the cylinder's mass appeared to be fluctuating over time, and its definition was hence changed in 2019.

In 2019, the kilogram was redefined to be based on fundamental constants rather than a physical artifact. The Planck constant, a universal constant of nature, and the Kibble balance, a device that measures mass by means of electric and magnetic forces, are used to define the kilogram. The current definition of the kilogram is more precise and stable than the previous one, and it is anticipated to be used for many years to come.

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The current definition of the standard kilogram of mass is based on the Planck constant, a physical constant that is the quantum of electromagnetic action. This approach ensures a stable definition that will not need future revisions.

The current definition of the standard kilogram of mass is based on the Planck constant (h), a fundamental constant of nature that is inherently stable. In 2018, the General Conference on Weights and Measures redefined the kilogram in terms of the Planck constant. The Planck constant is a physical constant that is the quantum of electromagnetic action, which relates the energy carried by a single photon to its frequency. Its value is approximately 6.62607015×10^-34 Js. This ensures that the definition of the kilogram will remain constant over time, not requiring any future revisions.

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Answer:

I think its because of the way our eyes see colors

Explanation:

yellow is between green and orange on the spectrum of visible light. that is why it is called the ' yellow ' light

The time interval required to accumulate 1.00 eV of energy is approximately 7.16 × 10¹¹ seconds.

To calculate the time interval required to accumulate 1.00 eV (electron volt) of energy from sunlight with an intensity of 500 W/m² falling on a disk with a radius of 2.82 × 10⁻¹⁵ m, we can use the equation:

Energy = Power * Time

Given:

Intensity (I) = 500 W/m²

Radius (r) = 2.82 × 10⁻¹⁵ m

Energy (E) = 1.00 eV

First, we need to calculate the total power received by the disk. Since the light is completely absorbed, we can assume that all the power is absorbed by the disk. The power can be calculated using the formula:

Power = Intensity * Area

The area of the disk can be calculated as follows:

Area = π * (radius)²

Substituting the values into the equation:

Area = π * (2.82 × 10⁻¹⁵ m)²

Next, we can calculate the power:

Power = Intensity * Area

= 500 W/m² * [π * (2.82 × 10⁻¹⁵ m)²]

Now we can solve for time:

Time = Energy / Power

= (1.00 eV) / [500 W/m² * π * (2.82 × 10⁻¹⁵ m)²]

To convert eV to joules, we use the conversion factor:

1 eV = 1.602 × 10⁻¹⁹ J

Substituting this conversion and the numerical values:

Time = (1.602 × 10⁻¹⁹ J) / [500 W/m² * π * (2.82 × 10⁻¹⁵ m)²]

Therefore, the time interval required to accumulate 1.00 eV of energy is approximately 7.16 × 10¹¹ seconds.

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4rt4er565976769678678677

Answer:

b

Explanation:

try looking it up if u need further help google is there to help you

Answer:

the answer is b

Our bodies are made up of fluids and solids, which are not easily compressible, and thus are able to maintain their shape even under pressure.

Air pressure at sea level is indeed around 100 kPa (kilopascal), which is equivalent to around 14.7 pounds per square inch. However, our bodies are not crushed by this pressure because we are able to withstand it. Our bodies are made up of fluids and solids, which are not easily compressible, and thus are able to maintain their shape even under pressure. Additionally, our internal organs exert a counter pressure, which helps balance the external pressure of the atmosphere. The human body has evolved over time to adapt to these environmental pressures, and we are able to live and function at sea level without being crushed by the air pressure. However, if we were suddenly exposed to a significantly higher pressure, such as in deep-sea diving or in a high-pressure chamber, our bodies would not be able to withstand the sudden change and could be seriously injured or even killed.

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Integrating the given acceleration function twice, we find that the the position of the particle at time t = 14 is 10039 units.

Acceleration function: a(t) = 18t+18

To find the velocity function, we integrate the acceleration function with respect to time:

v(t) = ∫ a(t)dt = ∫(18t+18)dt=9t2 + 18t + C1

We know that the velocity at time t = 0 is v(0) = 3, , so we substitute these values into the velocity equation to find the constant C1 :

v(0) = 9(0)2 + 18(0) + C1 = C1 =3

Therefore, the velocity function is: v(t) = 9t2 + 18t + 3

To find the position function, we integrate the velocity function with respect to time:

s(t) = ∫v(t)dt = ∫( 9t2 + 18t + 3) dt = 3t3 + 9t2 + 3t + C2

We know that the position at time t = 0 is s (0) = 1, so we substitute these values into the position equation to find the constant C2 :

s(0) = 3(0)3 + 9(0)2 + 3(0) + C2 = C2 = 1

Therefore, the position function is: s(t) = 3t3 + 9t2 + 3t + 1

To find the position at time t = 14, we substitute t = 14  into the position equation:

s(14) = 3(14)3 + 9(14)2 + 3(14) + 1

s(14) = 3(2744) + 9(196) + 42 + 1

s(14) = 8232 + 1764 + 42 + 1

s(14) = 10039

Therefore, the position of the particle at time t = 14 is 10039 units.

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To determine the number of storage bits required in the controller memory for the twisting joint (type T) of the industrial robot, we need to calculate the repeatability, round the deviations to a reasonable precision, and then calculate the number of addressable positions based on the range of the joint and the chosen accuracy level.

First, let's calculate the repeatability of the joint. Given that the range of rotation is 322°, the repeatability can be calculated as 6 times the standard deviation. Since the standard deviation is a measure of how spread out the data is, multiplying it by 6 ensures that the accuracy of the joint is as close as possible to, but less than, its repeatability.
Next, let's analyze the given data. The 10 samples of deviations from the commanded angles are: 0.176, 0.04, -0.345, 0.079, 0.309, -0.004, -0.102, 0.12, 0.075, and 0.1.
To calculate the standard deviation of these deviations, we need to find the mean and then calculate the differences from the mean. Squaring these differences and taking the average will give us the variance, which we can then take the square root of to obtain the standard deviation.

After calculating the standard deviation, we multiply it by 6 to obtain the repeatability.
Now, to determine the number of storage bits required, we need to consider the accuracy of the joint. The accuracy depends on the precision required for representing the deviations. Assuming a reasonable level of precision, we can round the deviations to, for example, 3 decimal places.
Finally, the number of storage bits required in the controller memory can be calculated by multiplying the range of the joint (322°) by the accuracy (e.g., 0.001°, considering 3 decimal places). This will give us the number of addressable positions, which can be represented by the required number of storage bits.

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