the grounding electrode conductor for a single separately derived system in accordance with ? must be sized at a minimum in accordance with the sizes in ? , based on the circular mil area of the largest ungrounded system conductor.

Answer:

If the basket ball appears orange then it can be said that it reflects orange light

Explanation:

The color of the object reflected by an object is the color which is viewed by a viewer. Hence, if the basket ball reflects the orange color light , then the ball will appear orange in color to the viewer.

The light absorbed by the object has no role in deciding the color of the object visible to a viewer.

hence, if the basket ball appears orange then it can be said that it reflects orange light.

According to the conservation of angular momentum, if an ice-skater starts spinning with her arms out wide, and then slowly pulls them close to her body, this will cause her to spin faster. The conservation of angular momentum states that the total angular momentum of a system remains constant as long as no external torque acts on it. This means that if a spinning object pulls its arms closer to its body, its rotational speed will increase.

This is because the moment of inertia of the system is reduced as the mass is brought closer to the axis of rotation. Since the angular momentum of the system must remain constant, an increase in rotational speed must occur to compensate for the decrease in moment of inertia. The principle of conservation of angular momentum can be observed in many physical systems, such as figure skating, where an ice skater spinning with her arms extended can increase her rotational speed by pulling her arms closer to her body. This is because the total angular momentum of the skater is conserved, and the decrease in moment of inertia is compensated by an increase in rotational speed.

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Answer:

Actions that underlie mathematical rules, patterns or probability distributions.

For example how fast something falls at any given point or time.

More complex actions, such as human decision making in single individuals would be way too complicated to describe in physical terms.

But note that there can be physical models of such things as traffic when we can assume statistical knowledge of behavior.

Also physical models are used to plan such things as emergency exits in big stadiums, because many thousands of people can be described as particles flowing under a given pressure.

Every time we can gain good statistical knowledge and can therefore see patterns and rules in action, we can build theoretical models to make predictions and simulations (and games btw)

Since it's fair to say that mathematics is the science of patterns, it is plausible that physical descriptions often come in mathematical formulations, so that it can be understand as an efficient language of physics.

Neighboring disciplines like chemistry relay on physical theories to build on them,and then add shortcuts to fit their needs and interests, generating an own language for their field of study. But physicists may refer to them as anadd-on to physics.

Physics can basically explain all actions wich you can express in numbers.

But note that on a fundamental level physics describes 'how' things work, not necessarily 'why' they do it this way. The source of the basic and most fundamental physical constants and rules remains a mystery till this day.But of course there are theories on that as well, wich mostly can neither be proved or falsified.

The text is my own work and based of my general knowledge and quintessence of lectures on physics and other fields I attended.

(I would really appreciate the brainliest)

Answer:

"Changing the amplitude of a signal is straightforward: We just need to multiply each sample with some constant number. In the case of sine waves, if what we want is a wave with amplitude a, our wave function becomes y = a * Math.sin(x)."

Explanation:

Risk*

Explanation:

Momentum is mass times velocity.

p = mv

720 kg m/s = m (5 m/s)

m = 144 kg

Answer:

Displacement, d = 12 meters

Explanation:

The displacement of an object that moves from the origin to a position at −12 m is 12 meters.

The distance from the origin to the maximum position is called displacement of an object. The maximum displacement of the particle in a wave is called crest and the minimum displacement is called the trough. -12 shows the displacement in negative axis.

So, the displacement of an object is 12 meters.

Answer:

970 kN

Explanation:

The length of the block = 70 mm

The cross section of the block = 50 mm by 10 mm

The tension force applies to the 50 mm by 10 mm face, F₁ = 60 kN

The compression force applied to the 70 mm by 10 mm face, F₂ = 110 kN

By volumetric stress, we have that for there to be no change in volume, the total pressure applied by the given applied forces should be equal to the pressure removed by the added applied force

The pressure due to the force F₁ = 60 kN/(50 mm × 10 mm) = 120 MPa

The pressure due to the force F₂ = 110 kN/(70 mm × 10 mm) = 157.142857 MPa

The total pressure applied to the block, P = 120 MPa + 157.142857 MPa = 277.142857 MPa

The required force, F₃ = 277.142857 MPa × (70 mm × 50 mm) = 970 kN

A cart moving at a constant speed of 25 m/s possesses 438 J of kinetic energy, and the mass of the car is 1.6 kg.

The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object to accelerate it. We must put in the effort to apply force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.

Definition: When an object is moving at a constant speed—that is, its speed does not change—we say it is moving at a constant speed. steady rate

Given:

KE = 500 J

v = 25 m/s

The formula for Kinetic Energy is given:

KE = ½ mv²

where: KE - Kinetic Energy

m - mass

v - velocity

Substituting the value of KE and v in the formula,

500 J = (½)(m)(25 m/s)²

m = (500 J)(2)/(25 m/s)²

m = 1.6 kg

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Answer:

Gravity holds stars together and keeps us on the ground. The electromagnetic force ensures the stability of atoms and makes chemistry happen. The strong nuclear force holds the kernels of matter, atomic nuclei, together, and powers the burning of stars.

Explanation:

Answer:

The mass of the ball is 1.64 kg.

Explanation:

You have to apply Newton's second law, F = m×a where F represents force, m is mass and a is acceleration :

\(F = m \times a\)

\(let \: F = 12.6,a = 7.7\)

\(12.6 = m \times 7.7\)

\(12.6 \div 7.7 = m\)

\(m = 1.64kg \: (3sf)\)

Explanation:

Wavelength is the distance between two consecutive and equivalent points on a wave. Wavelength can be quantified by measuring the distance between two equivalent and consecutive points, such as the distance between two peaks or two troughs. The scientific symbol for wavelength is a Greek letter called lambda.

Answer:

They pass after roughly 5 hours and 35 minutes.

Answer:

X: Absorbs energy from the core.

Y: Releases energy to the photosphere.

Explanation:

Convection is a mode of heat transfer through fluids (liquids or gas), and it requires material medium for its propagation.

The energy absorbed from the core of the Sun, is transferred through X (convection zone) by convectional process, and it flows to Y (radiative zone). Since the regions X and Y have different functions, the heat propagates from X causing photons to traverse through Y where it get released into the photosphere or the Sun's surface.

Therefore;

X: Absorbs energy from the core.

Y: Releases energy to the photosphere.

Answer:

X: Takes longer for photons to move through

Y: Releases energy to the photosphere

Explanation:

The change in the energy of the gas is obtained as 56J.

We know that the change in the energy of the gas can be obtained by the application of the first la of thermodynamics. From the first of law of thermodynamics, we know that energy can neither be created nor destroyed but can be changed from one form to another.

ΔE = q + w

ΔE = energy change

q = heat absorbed or evolved

w = work done

ΔE = -27 J +  83.0 J

ΔE = 56J

Thus the new energy of the gas is obtained as 56J.

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Missing parts;

The work done to compress a gas is 83.0 J. As a result, 27.0 J of heat is given off to the surroundings. Calculate the change in energy of the gas.

To determine the position of the minute hand at 8:15 a.m., we can use the following approach:

Convert the time to radians: At 8:15 a.m., the minute hand is 75% of the way from the 8:00 a.m. mark to the 9:00 a.m. mark. Since the minute hand travels 360 degrees in 60 minutes, it travels 6 degrees per minute. Therefore, at 8:15 a.m., it has traveled 90 degrees from the 8:00 a.m. mark. This is equivalent to (90/360) x 2π radians = π/2 radians. Use trigonometry to determine the position: Since the minute hand is 3.00 cm long and pointing in the direction of the positive x-axis at 8:15 a.m., its position can be described by the coordinates (3.00 cos(π/2), 3.00 sin(π/2)) = (0, 3.00). Therefore, the minute hand is pointing straight up at 8:15 a.m. Note that the x-axis points in the same direction as the minute hand at 8:15 a.m., while the y-axis points in the same direction as the minute hand at 8:00 a.m. This means that the x-axis is perpendicular to the minute hand at 8:00 a.m., and the y-axis is perpendicular to the minute hand at 8:15 a.m.

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Answer:

3

Explanation:

Since the 9.89 x10^3 have the three digits 9.89 without any fillers.

Answer:

This has 3 significant digits

Explanation:

9.89 x 10^3

Writing this out

9.89 * 1000

9890

This has 3 significant digits

Velocity, acceleration, force, and displacement, have magnitude and direction (ie vector quantity) in common

This is a which have both magnitude and direction. Example include:

This is a quantity which has magnitude but no direction. Example include:

From the above, we can see that velocity, acceleration, force, and displacement, have magnitude and direction (ie vector quantity) in common

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A) Angular acceleration = -2.47 rad/s²

B) 23.54 seconds

C) The total distance covered = 294.23m

The number of revolutions = 62

Angular distance, θ = 62 x 2π

θ = 62 x 2 x 3.142

θ = 389.608 radians

Diameter, d = 0.86 m

Radius, r = d/2 = 0.86/2

r = 0.43m

Initial velocity, v₁ = 90 km/h = 90 x (1000/3600)

v₁ = 25 m/s

Angular velocity, w₁ = v₁ / r

w₁ = 25/0.43

w₁ = 58.14 rad/s

Final velocity, v₂ = 59 km/h = 59 x (1000/3600)

v₂ = 16.39 m/s

Angular velocity, w₂ = v₂ / r

w₂ = 16.39 / 0.43

w₂ = 38.12 rad/s

Using the equation of motion:

Angular acceleration = -2.47 rad/s²

B) Amount of time required for the car to stop if it continues to decelerate at this rate

Initial angular speed, w₁ = 58.14 rad/s

When the car stops, final angular speed, w₂ = 0 rad/s

Using the equation of motion below:

C) The total distance

Use the equation of motion below:

The total distance covered = 294.23m

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Actually Welcome to the Concept of the Methods of Separation.

Evaporation and Decantation are the process which can be easily used to remove the Soluble Impurities.

Answer:

To remove soluble impurities, first, by doing solubility tests, a suitable solvent is chosen (high solubility in hot solvent, low solubility in cold solvent). The soluble impurities are then removed as follows: the desired compound along with the soluble impurities are dissolved in a MINIMUM of near-BOILING solvent.

Answer:

The Alkali Metals

sodium is a member of the alkali metal family with potassium (K) and lithium (Li). Sodium's big claim to fame is that it's one of two elements in your table salt. When bonded to chlorine (Cl), the two elements make sodium chloride (NaCl).

Answer:

Explanation:

Sodium is a member of the alkali metal family, along with potassium (K) and lithium (Li). The fact that sodium is one of two elements in table salt is its main claim to fame. When bonded with chlorine (Cl), the two elements combine to form sodium chloride (NaCl).

Answer:

2.5 seconds

Explanation:

20:8= 2.5 seconds

have a nice day! (^o^)

Answer:

2.5 seconds

Explanation:

20 ÷ 8 = 2.5

That's it.

The magnitude of force is  F=91.214nN. The force is Repulsive in nature.

Solution:

According to coulombs law, the force between two charges is express as

F=(K*q1*q2) /r^2

constant K = 9*10^9

Hence for a charge q1=6.82nC = 6.82*10^-9,

q2=3.90*10^-9

distance r=1.62m

F = [(9×10^9) ×(6.82×10^-9) × (3.90×10^-9)] /(1.62^2)

F=(239.382×10^-9)/2.6244

F = 91.214×10^-9N

F = 91.214nN

Since the charges are both positive, the force is repulsive

Coulomb listed the following characteristics of the electric force for charges in a resting state: Unlike charges attract each other whereas like charges repel one another. As a result, a positive charge pulls a negative charge toward it whereas two negative charges repel one another. The line between the two charges is where the attraction or repulsion occurs.

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Correct question:

Two charged particles are a distance of 1.62 m from each other. One of the particles has a charge of 6.82 nc, and the other has a charge of 3.90 nc. (a) What is the magnitude (in N) of the electric force that one particle exerts on the other? (b) is the force attractive or repulsive? O attractive O repulsive

Answer:

B

Explanation:

Gravitational Energy is the energy of position or place. A rock resting at the top of a hill contains gravitational Potential energy. Hydropower, such as water in a reservoir behind a dam, is an example of gravitational potential energy.

The radius of the sphere should be as large as feasible when creating a Van de Graaff generator if you want it to store as many electrons as possible.

A Van de Graaff generator is an electrostatic generator that generates extremely high electric potentials by accumulating electric charge on a hollow metal globe on top of an insulated column using a moving belt.

A rubber belt that is also wrapped over the upper metal pulley in a Van de Graaff generator rotates when the lower pulley, which is attached to an electric motor, turns. Electric charge separation and transmission are caused by the lower pulley and belt rubbing against one another.

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Answer:

We're a different species.

Explanation:

Merry Christmas!

Answer:

Explanation:

Hope this helps :)  

Pls make brainliest :3  

And have an amazing day <3

With 4.3 m/s velocity, is the cheetah running.

velocity= distance/time

distance=27.6 m

time=6.3 s

velocity=27.6 m/6.3 s

velocity=4.3 m/s

A vector number known as velocity describes "the pace at which an item changes its location." Imagine a person moving quickly, taking one stride ahead, one step back, and then beginning from the same place each time. A vector quantity is velocity. As a result, velocity is aware of direction. One must consider direction while calculating an object's velocity. Saying that an item has a velocity of 55 miles per hour is insufficient. The direction must be included in order to adequately characterize the object's velocity. Simply said, the velocity vector's direction corresponds to the motion of an item.

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The graphs display the function solution y = ex and three numerical solutions -Euler, Improved Euler, and Runge-Kutta- at different intervals. The Relative Deviation on the right measures the difference between the numerical solutions and the exact function solution.

The analysis of each set of graphs involves comparing the numerical solutions (Euler, Improved Euler, and Runge-Kutta) with the exact function solution y = ex. The Relative Deviation provides an indication of how closely the numerical solutions approximate the exact solution.

To analyze each set of graphs, follow these steps:

By examining the graphs and assessing the Relative Deviation, one can analyze the accuracy and performance of the numerical solutions -Euler, Improved Euler, and Runge-Kutta- in approximating the exact function solution y = ex at different intervals or iterations.

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When the electron density is unevenly distributed around atoms in a covalent bond, it is considered to be polar.

Polar covalent bonds are a type of chemical bond formed between atoms that share electrons unequally. In a covalent bond, two atoms share electrons in order to achieve a stable electron configuration.

Polar covalent bonds occur when the electronegativity difference between the two atoms in the bond is significant enough to cause the electrons to be shared unequally. The atom with the higher electronegativity attracts the shared electrons closer to itself, resulting in a partial negative charge, while the other atom has a partial positive charge. This unequal distribution of charges in the bond creates a dipole moment, giving rise to a polar bond.

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