Explain why an elements oxidation number is related to the group on the periodic table to which it belongs

kinetic energy that moves the robot and its brush.

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The Moon has an elliptical orbit is the main reason that the gravitational attraction between Earth and the Moon changes each day.

Earth's gravity pulls the moon to the center of the earth, while the moon's gravitational force maintains the moon's position, resulting in a centrifugal force that makes the moon rotate on its axis and surround the earth so that it is not attracted to the earth's center of gravity or stays in its orbit.

The influence of the gravitational force of the earth and the moon is the tides of the sea. The moon's gravitational force pulls seawater toward the moon, affecting wave height and sea level. Because the moon revolves around the earth, there will be times when one side of the earth is closer to the moon. The part that is close to the moon will experience high tide, while the other part that is not close to the moon will experience low tide. The tides are also related to the phases of the moon. Usually, sea water will experience high tides during the full moon.

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A total differential is an equation in which all the differentials can be integrated independently of each other. To verify that the given expressions are total differentials, we must check if they meet the conditions of being an exact differential function.The given expression is not an exact differential function.

According to the exact differential function, an expression dQ should be equal to the sum of two partial derivatives of the same function. i.e, dQ= dP+ dRA primitive function of an expression is obtained by integrating the given expression partially. Let's solve the given expressions, one by one:

1. Expression : (x² + 2xy-y²)dx + (x²-2xy - y²)dy. Now, we need to find the partial derivatives of the above function with respect to x and y.∂P/∂x = x² + 2xy - y²  ∂Q/∂y = x² - 2xy - y².

On verifying, we get:∂P/∂x = ∂Q/∂y.

Hence, the given expression is an exact differential function.

To find the primitive function, we need to integrate any one of the partial derivatives with respect to x and other with respect to y.

∴ P(x,y) = ∫(x² + 2xy - y²)dx = x³/3 + x²y - xy² + C1 and ∴ Q(x,y) = ∫(x² - 2xy - y²)dy = x²y - y³/3 + C2.

Therefore, the primitive function of the expression is: P(x,y) = Q(x,y) = x³/3 + x²y - xy² - y³/3 + C2.

Expression : (2xcosy - y² sinx) dx + (2ycosx - x² siny) dy. Now, we need to find the partial derivatives of the above function with respect to x and y.∂P/∂x = 2cosy  ∂Q/∂y = 2ycosx.

On verifying, we get:∂P/∂x ≠ ∂Q/∂y .

Hence, the given expression is not an exact differential function.

Therefore, there does not exist a primitive function for the given expression.

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In physics, the normal force is a contact force that is perpendicular to the surface of contact. The direction and magnitude of the normal force on a table with four legs, each of which has weight and rests on an even concrete floor, are discussed in this question.

Since the weight of the table is evenly distributed and the table is resting on an even concrete floor, the normal force will be distributed evenly on all four legs. Since the table is at rest, it must be in equilibrium. This implies that the sum of all forces acting on the table must be zero. The normal force acting on each leg can be found using Newton's second law, which states that the force (F) is equal to the mass (m) times the acceleration (a):F = maSince the table is at rest, the acceleration is zero, and the force is equal to zero.

This implies that the force acting on each leg must be equal and opposite to the weight of the table. The weight of the table is equal to the mass of the table times the acceleration due to gravity (g).F = mg. The mass of the table is given as 400 N, and the acceleration due to gravity is 9.8 m/s^2. Thus, the normal force acting on each leg is:F = mgF = (400 N)(9.8 m/s^2)F = 3,920 N. The direction of the normal force is perpendicular to the surface of contact, which is the even concrete floor. Therefore, the normal force acting on each leg is perpendicular to the even concrete floor and has a magnitude of 3,920 N.

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It took the wave approximately 3.46 seconds to travel a distance of 225 meters.

To find the frequency of a wave when given the speed and wavelength, we can use the formula:

frequency = speed / wavelength

Substituting the given values into the formula, we get:

frequency = 65 m/s / 0.8 m

frequency = 81.25 Hz

Therefore, the frequency of the wave is 81.25 Hz.

To calculate the time it took for the wave to travel a distance of 225 meters, we can use the formula:

time = distance / speed

Substituting the given values into the formula, we get:

time = 225 m / 65 m/s

time = 3.46 s (rounded to two decimal places)

Therefore, it took the wave approximately 3.46 seconds to travel a distance of 225 meters.

It's important to note that the formulas used assume that the wave is traveling in a uniform medium without any dispersion or other factors that could affect its speed or behavior. In reality, waves can encounter various phenomena that may alter their characteristics.

However, for the purpose of this calculation, we have assumed a simplified scenario where the wave travels at a constant speed and exhibits a single wavelength.

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The velocity vs. time graph provides information about how the velocity of an object changes over time.

The velocity vs. time graph is a graphical representation of the object's velocity at different points in time. The graph consists of two axes: the vertical axis represents velocity, and the horizontal axis represents time. By examining the graph, you can determine various characteristics of the object's motion.

For example, a positive slope on the graph indicates that the object is moving in a positive direction with increasing velocity. A negative slope indicates motion in the opposite direction or decreasing velocity.

A horizontal line represents constant velocity, as the slope is zero. The steepness of the slope indicates the rate at which the velocity is changing. A steeper slope indicates a faster change in velocity.

The velocity vs. time graph is a valuable tool in understanding the motion of objects. By analyzing the graph's shape and slope, you can determine important information such as acceleration, deceleration, constant velocity, and direction of motion.

It provides a visual representation that aids in interpreting and predicting an object's motion over time.

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Answer:

Erosion and Transport

Explanation:

Answer:

that would be analyzing data I believe

Answer:

Wavelength.

Explanation:

1 period, or wavelength, is measured from one crest to another or from one trough to another.

Answer:

22.5 inches in 6hours

Explanation:

Because it tells us it grows 3.75 an hour which is an ratio of 3.75 to 1 so you would just multiply 3.75 with 6

Hope this helps

Answer:

I looked it up but got perihelion so I don't know if that will help at all but try um.... I don't know try L

Explanation:

Answer:

If two magnetic south poles or two magnetic north poles are brought near each other, the magnetic force is repulsive and the magnets will push against each other in opposite directions. If opposite poles are brought near, it is attractive. But the fundamental origin of the magnetic field is moving charge.

The acceleration of the car can be obtained as  0.26 m/s^2. The force required to ove it a distance of 30 m is 11760 N.

We know that the acceleration is the change in the velocity of the object with time. Now we know from the Newton law that the force is the product of the mass of the object and the acceleration.

Now we have that;

weight = mass * acceleration due to gravity

mass = weight/ acceleration due to gravity

mass = 12,000 N / 10 m/s^2

= 1200 Kg

The we know that;

Force = mass * acceleration

acceleration = Force/mass

=  310 N/1200 Kg

= 0.26 m/s^2

For the force that that is needed to move the car a distance of 30 m we have;

F = ma

= 1200 Kg * 9.8 m/s^2

= 11760 N

This is the force that ca move the object forward.

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When salt is added, it makes it harder for the water molecules to escape from the pot and enter the gas phase, which happens when water boils, Giddings said. This gives salt water a higher boiling point, she said.

Answer:

Explanation:

Adding salt (independent variable) causes the boiling temperature of the water (dependent variable) to increase.

Answer:

7.5 meters per second

Hope This Helps!!

Answer:

it is 7.5 m\s

tell me if it's right

Given that the radius of the circular path is r = 142 m and the coefficient of the friction is

The condition for the car to travel safely is

Frictional force = centrifugal force

Here, m is the mass of the car and the acceleration due to gravity is g = 9.8 m/s^2.

v is the maximum speed of the car.

Can't you write in English word

Answer:

If an object pushes out an amount of water equal to its own weight, the upward force acting on it will be equal to gravity - and the object will float.

Explanation:

The buoyant force has an impact on the object in the water and equals the weight of the water displaced by the object. Every object placed in water has some buoyancy force that pushes it against the gravitational force, and this means that any object loses weight in the water.

Answer:

mass×Velocity

Explanation:

b/c when we want to get KE =one over two mass times velocity square

Answer:

potential energy depends on position or shape

Answer:

Crust

Explanation:

Answer: 420 N

Explanation:

coefficient of static friction * normal force=maximum static friction force

0.6 * 700N=maximum static friction force

6/10 * 700N=

700*6/10=

4200/10=420 N

Explanation:

To calculate the net work done on the block, we need to first calculate the work done by the applied force, and then subtract the work done by friction.

1. Work done by the applied force:

The component of the applied force that is in the direction of motion is given by:

F_parallel = F_applied * sin θ

where θ is the angle of inclination. Plugging in the given values, we get:

F_parallel = 80N * sin 30°

F_parallel = 40N

The work done by the applied force is given by:

W_applied = F_parallel * d

where d is the length of the inclined plane. Plugging in the given values, we get:

W_applied = 40N * 20m

W_applied = 800J

2. Work done by friction:

The force of kinetic friction is given by:

F_friction = μ_k * N

where μ_k is the coefficient of kinetic friction, and N is the normal force. The normal force is equal to the weight of the block:

N = m * g

where m is the mass of the block, and g is the acceleration due to gravity (taken as 9.8 m/s²). Plugging in the given values, we get:

N = 5kg * 9.8 m/s²

N = 49N

Therefore, the force of kinetic friction is given by:

F_friction = 0.25 * 49N

F_friction = 12.25N

The work done by friction is given by:

W_friction = F_friction * d

Plugging in the given value of d, we get:

W_friction = 12.25N * 20m

W_friction = 245J

3. Net work done:

The net work done on the block is given by:

Net work = W_applied - W_friction

Plugging in the values we calculated earlier, we get:

Net work = 800J - 245J

Net work = 555J

Therefore, the net work done on the block is 555 joules.

Answer:

B

Explanation:

If you really read and dissect every other question they do not make sense

When the drive steps on the accelerator: (a) The magnitude of the force of the car on the truck is 4500 N. (b) The magnitude of the force of the truck on the car is also 4500 N.

What is magnitude?

Magnitude refers to the size or extent of a quantity, property, or phenomenon. It is a measure of the absolute value or scale of something, often expressed as a numerical value or a relative comparison.

Magnitude can be used in various contexts, depending on the specific field or subject matter. Here are a few examples:

Magnitude in Physics: In physics, magnitude often refers to the size or quantity of a physical property, such as the magnitude of a force, velocity, acceleration, electric field, or magnetic field. It represents the numerical value or intensity of the quantity being measured.

Magnitude in Mathematics: In mathematics, magnitude is used to express the size or absolute value of a number or a mathematical object. For example, the magnitude of a real number is its distance from zero on a number line, disregarding its sign. It is typically denoted as the absolute value symbol (|x|).

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. In this scenario, the force exerted by the car on the truck (action) is equal in magnitude but opposite in direction to the force exerted by the truck on the car (reaction).

(a) The magnitude of the force of the car on the truck is given as 4500 N. This force is applied by the drive wheels of the car pushing backwards against the ground. It is important to note that this force does not depend on the mass of the car or the truck, but rather on the force applied by the driver on the accelerator.

(b) As per Newton's third law, the magnitude of the force of the truck on the car is also 4500 N. This force is a reaction to the force exerted by the car on the truck. Again, this force does not depend on the masses of the car or the truck but is equal in magnitude and opposite in direction to the force exerted by the car on the truck.

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Complete question:

A 1000 kg car pushes a 2000 kg truck that has a dead battery. When the driver steps on the

accelerator, the drive wheels of the car push backwards against the ground with a force of 4500 N.

(a) What is the magnitude of the force of the car on the truck?

(b) What is the magnitude of the force of the truck on the car?

The rod into molten iron would cause the greatest increase in the entropy of an iron rod. Entropy is a measure of the disorder or randomness in a system. the rod against a magnet because the former would lead to a greater increase in randomness and disorder in the system.

This increases the disorder and randomness in the system, leading to an increase in entropy. On the other hand, holding the rod against a magnet would not cause a significant increase in entropy because the molecules in the rod would still be in a relatively ordered state. The magnetic field of the magnet would cause the electrons in the rod to align in a particular direction, but this alignment would not lead to a significant increase in disorder. In summary, inserting the rod into molten iron would cause a greater increase in entropy compared to holding the rod against a magnet because the former would lead to a greater increase in randomness and disorder in the system.

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The force required to stretch the wire by 1.0 mm is approximately 0.00013 N. Length of approximately 0.0039 m or 3.9 mm of the 8.0-mm-diameter wire would be stretched by 1.0 mm with a force of 0.00013 N.

Part A:

To calculate the force required to stretch the wire by 1.0 mm, we can use Hooke's Law, which states that the force required to stretch or compress a material is directly proportional to the displacement or change in length.

The formula to calculate the force is:

F = (Y * A * ΔL) / L

F is the force

Y is Young's modulus

A is the cross-sectional area of the wire

ΔL is the change in length of the wire

L is the original length of the wire

First, we need to calculate the cross-sectional area of the wire:

A = π * (r²)

r is the radius of the wire, which is half of the diameter.

r = 4.0 mm / 2 = 2.0 mm = 0.002 m

A = π * (0.002 m)²

A ≈ 0.000012566 m²

ΔL = 1.0 mm = 0.001 m

L = 1.0 m

Y = 10 N/m²

Plugging the values into the formula:

F = (10 N/m² * 0.000012566 m² * 0.001 m) / 1.0 m

F ≈ 0.00012566 N

Rounded to two significant figures:

F ≈ 0.00013 N

Therefore, the force required to stretch the wire by 1.0 mm is approximately 0.00013 N.

Part B:

To calculate the length of the 8.0-mm-diameter wire that would be stretched by 1.0 mm with this force, we can rearrange the formula used in Part A to solve for L.

L = (Y * A * ΔL) / F

r = 8.0 mm / 2 = 4.0 mm = 0.004 m

A = π * (0.004 m)² = 0.000050265 m²

ΔL = 1.0 mm = 0.001 m

F = 0.00013 N (from Part A)

Plugging the values into the formula:

L = (10 N/m² * 0.000050265 m² * 0.001 m) / 0.00013 N

L ≈ 0.00386 m

Rounded to two significant figures:

L ≈ 0.0039 m

Therefore, a length of approximately 0.0039 m or 3.9 mm of the 8.0-mm-diameter wire would be stretched by 1.0 mm with a force of 0.00013 N.

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