which statement is not correct about force.

A, force causes deformation
B, force xauses accleration
C, if there is no force, there is no motion
D, force emerges due to interaction.​

Eo = 0.000 V for the H+/H2 couple and -0.8281 V for the H2O/H2 , OH- couple. KW at 298 K is 1.1 x 10^-14.

To determine KW at 298 K, we need to use the equation:

KW = [H+][OH-]

First, we need to calculate the concentration of H+ and OH- at equilibrium. We can use the Nernst equation for this:

Ecell = Eo - (RT/nF) * ln(Q)

For the H+/H2 couple, Eo is given as 0.000 V. For the H2O/H2, OH- couple, Eo is -0.8281 V. At equilibrium, the cell potential is 0 V. Therefore, we can write:

0 V = 0.000 V - (RT/nF) * ln(Q1) - (-0.8281 V) - (RT/nF) * ln(Q2)

Simplifying this equation, we get:

ln(Q1/Q2) = -0.8281 V / (RT/nF) = -35.33

Q1/Q2 = e^(-35.33) = 3.3 x 10^-16

Now, we can use the equilibrium constant expression for the H2O/H2, OH- couple to find the concentration of OH-:

Kw = [H+][OH-] / [H2O]

[H2O] is assumed to be constant, so we can write:

Kw = [H+][OH-] / K'

where K' is the equilibrium constant for the dissociation of water, which is 1 x 10^-14 at 298 K.

We know that [H+] = [OH-] / Q1. Substituting this into the expression for Kw, we get:

Kw = [OH-]^2 / K'Q1

Substituting the values we calculated earlier, we get:

Kw = (3.3 x 10^-16)^2 / (1 x 10^-14)(3.3 x 10^-16) = 1.1 x 10^-14

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The diffraction grating affects the light from a hydrogen lamp as it produces the separation of the colors of the white light. The spectrum can be viewed through the grating,

Answer:

The speed of the object will be "2.4 m/s".

Explanation:

The given values are:

Kinetic energy,

K.E = 90 J

Mass,

m = 30 kg

Speed,

v = ?

As we know,

⇒  \(K.E=\frac{1}{2} (mass\times speed^2)\)

On substituting the values, we get

⇒  \(90=\frac{1}{2} (30\times v^2)\)

⇒  \(90=15\times v^2\)

⇒  \(v^2=\frac{90}{15}\)

⇒  \(v^2=6\)

⇒  \(v=\sqrt{6}\)

⇒  \(v=2.44 \ m/s\)

Answer:

it becomes a liquid. it becomes water

The maximum speed with which the 945 kg car can make the 180 degree turn around a 35.0 m radius curve is 17.25 m/s, or about 61.7 km/h.

The maximum speed with which a car can make a turn can be determined by considering the force of friction acting on the car as it moves around the curve. In this case, the maximum speed can be found by equating the force of friction to the centrifugal force acting on the car.

The force of friction is given by the equation:

f (friction) = friction coefficient * normal force

The normal force is equal to the weight of the car, which can be calculated as:

f (normal) = m * g

where m is the mass of the car (945 kg) and g is the acceleration due to gravity \((9.8 m/s^2).\)

The centrifugal force acting on the car can be calculated using the equation:

\(f (centrifugal) = m * v^2 / r\)

where v is the speed of the car, and r is the radius of the curve (35.0 m).

By equating the force of friction to the centrifugal force, we can solve for the maximum speed of the car:

\(friction coefficient * m * g = m * v^2 / r\\v^2 = friction coefficient * g * r\\v = sqrt(friction coefficient * g * r)\)

Plugging in the values, we get:

\(v = sqrt(0.850 * 9.8 * 35.0)\\v = sqrt(298.3)\\v = 17.25 m/s\)

So, the maximum speed with which the 945 kg car can make the 180 degree turn around a 35.0 m radius curve is 17.25 m/s, or about 61.7 km/h.

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Answer:

Their common velocity after collision is 3.6 m/s

Explanation:

Given;

mass of the first meatball, m₁ = 3.0 kg

initial velocity of the first meatball, u₁ = 6.0 m/s

mass of the second meatball, m₂ = 2.0 kg

initial velocity of the first meatball, u₂ = 0 m/s

let their common velocity after collision = v

Apply the principle of conservation of linear momentum for inelastic collision ;

m₁u₁ + m₂u₂ = v(m₁ + m₂)

(3 x 6) + (2 x 0) = v( 3 + 2)

18 = 5v

v = 18 / 5

v = 3.6 m/s

Therefore, their common velocity after collision is 3.6 m/s

Answer:

20mlvs I'd pick for this

Answer:

t

Explanation:

A gradual shift of the North Magnetic Pole's position on Earth a steady rise in the planet's average temperature, a reduction in the Moon's light reflection.

Dr. Washington and his team were able to recreate the impacts of physics on several components of weather, such as “how heat energy, water vapor, and chemicals travel between Earth's seas and the atmosphere,”

Through the use of climate models. 3 After that, computers projected atmospheric changes using the information from the climate models.

The 2007 Intergovernmental Panel on Climate Change (IPCC) report, which found that human behavior has a direct impact on the environment, used these models to support its findings.

As a result, Dr. Washington and his team were awarded the 2007 Nobel Peace Prize3.

Therefore, a slow change in the location of Earth’s North Magnetic Pole A gradual increase in Earth’s average temperature A decrease in the light reflection of the Moon

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Yes i would personally get better results and be more motivated by participating in physical activities that are competitive or recreational.

My motivation would increase if I engaged in leisure physical activity. Because you must aspire for victory, competitive hobbies may come with a lot of responsibilities. Regular exercise will make you happy regardless of whether you're doing it to compete or just for the sake of it. similar to team sports like baseball, soccer, basketball, badminton, and volleyball. Because you'll be with people who share your passion for the sport but aren't competing with you, these leisure activities are a good idea.

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No, centripetal force acting on an object does not do work on the object.

Centripetal force is not a fundamental force; rather, it is the name given to any force that causes a body to travel in a circle or curved path. It works at right angles to the direction of motion and points toward the center of the curve. For example, the force of gravity that pulls the moon towards the Earth is a centripetal force that keeps it in orbit. Centripetal force does not do any work because the force and displacement vectors are perpendicular. As a result, the dot product is zero, indicating that no work is being done. When a body travels in a circle, the speed and direction of the body are constantly changing, but the total work done on the body is zero. The work done by the force of gravity and the normal force in a circular path is equal to zero.

Centripetal force does not do any work because the force and displacement vectors are perpendicular. When a body travels in a circle, the speed and direction of the body are constantly changing, but the total work done on the body is zero.

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The average speed of the car is 35.6m/s

The average speed is the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity. It is represented by the magnitude and does not have direction. It is measured in meter per second

Therefore average speed = total distance / total time taken

The total distance here is 500+ 500= 1000km = 1×10⁶m

the time taken for the first journey = 500×1000/35= 14285.71 seconds

the time taken for traveling back = 500000/43= 11627.91 seconds

total time taken = 14285.71 + 11627.91 = 25913.62seconds

therefore average speed = 1000000/25913.62

= 35.6m/s

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Answer:

yes because it caries a message on ecological and evolutionary assembly of the classified vegetation and flora. Its known to be called a Vegetation map or Vegetation Mapping.

Explanation:

Answer:

The answers as per the given problem is solved in the segment below.

Explanation:

According to the question,

(a)

\(F=ILB\)

By putting the values, we get

   \(=10(2\times 10^4)(5\times 10^{-5})\)

   \(=10 \ N\)

(b)

\(W=Fx\)

or,

    \(=Fvt\)

    \(=10(7.80\times 10^3)(3600)\)

    \(=2.81\times 10^8 \ J\)

(c)

\(\frac{1}{2}mv'^2 =\frac{1}{2}mv^2-\omega\)

or,

      \(v=[v^2-\frac{2 \omega}{m} ]^\frac{1}{2}\)

         \(=[(7.8\times 10^3)^2-\frac{2(2.81\times 10^8)}{1\times 10^5} ]^{\frac{1}{2} }\)

         \(=7.79\times 10^3 \ m/s\)

now,

\(\Delta v=v-v'\)

     \(=0.36 \ m/s\)

(d)

The speed of the object is 10 meters/second.

Speed is defined as the rate at which an object covers distance. It is a scalar quantity, which means that it only has a magnitude (i.e., size) and no direction. The SI unit for speed is meters per second (m/s).

To calculate speed, we need to know the distance traveled and the time it took to cover that distance. In this case, we were given that the object traveled 200 meters and took 20 seconds to do so. We then used the formula:

speed = distance / time

To calculate the speed of the object. We divided the distance traveled by the time it took to travel that distance to find the speed.

Substituting the given values into the formula, we get:

speed = 200 meters / 20 seconds

This simplifies to:

speed = 10 meters/second

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Answer:

the motion of an object at a constant speed along a circular path is known as Uniform circular motion

The interference pattern that you you see on the interior surface of the cylinder is (a) bright and dark fringes so closely spaced as to be indistinguishable

Young's double slit experiment is the experiment performed in 1801 by Thomas Young to prove that light is a wave.

Since you are performing Young's double-slit experiment with the slit separation slightly smaller than the wavelength of the light and as a screen, you use a large half-cylinder with its axis along the midline between the slits.

Now, we know that the interference pattern of a Young's double slit experiment is as a result of diffraction.

Interference pattern is the pattern observed due to the vectorial combination of waves

Diffraction is the property of a wave in which a wave spreads out as it passes through an opening.

Now, we know that diffraction occurs when a wave goes through an aperture or opening smaller than its wavelength.

Now, the smaller the opening compared to the wavelength of the wave, the more the diffraction you would observe bright and dark fringes so closely spaced as to be indistinguishable.

So, the interference pattern that you you see on the interior surface of the cylinder is (a) bright and dark fringes so closely spaced as to be indistinguishable

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Answer:

True, wheel and excel has co-axial cylinder. true or false.

You can follow me to get more answer.

Answer:

true

Explanation:

yes they have two com xial cylinder and they work together

The barge will Motion 252 m³ of water while maintaining a 2.00 m top height above the water.

An object in motion maintains a straight course and a steady speed until it is affected by an unbalanced force. An object at rest maintains its state of rest. The mass of an item and the force acting on it define the acceleration of that thing.

The barge's displacement of water is proportional to its volume below the waterline.

The following formula may be used to determine the barge's volume:

Volume of barge = length × width × depth

Volume of barge = 14.0 m × 9.0 m × 4.0 m

Volume of barge = 504 m³

The top section of the barge is 2.00 m deep, so its volume can be calculated as follows:

Volume of top section = length × width × depth

Volume of top section = 14.0 m × 9.0 m × 2.0 m

Volume of top section = 252 m³

Now, the barge's displacement of water may be computed as follows:

Volume of water displaced = Volume of barge - Volume of top section

Volume of water displaced = 504 m³ - 252 m³

Volume of water displaced = 252 m³.

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Answer:

33.333 ohms

Explanation:

voltage = power / current

3 / 0.3 = 10

resistance = voltage / current

10 / 0.3 = 33.33333

answer :

force is called the magnetic force of repulsion, and it happens when two magnets have the same poles (either both north or both south) and they push away from each other.

When all the domains in a material are aligned in the same direction, the material becomes strongly magnetized.

explanation :

magnetic domains in the rings were stable and strong enough to resist the force of gravity.

In the case of the levitating rings, the magnetic domains were aligned in such a way that they created a strong magnetic field, which allowed the rings to levitate in mid-air.

tiny regions within ferro magnetic  material that have their own magnetic fields are called magnetic domains.

Magnetic domains in the rings refer to the tiny regions within the ring's ferro magnetic material that have their own magnetic fields.

Answer:

A. 1.0x10^6 J

B. 53 W

C. 7.1x10^-2

D. 330 W

Explanation:

A) work done = mgh

so 71*9.8*1500=1.0x10^6 J

B) power = Work done/time

So P=1.0x10^6/19800 sec

P= 53 W

​

C) 1 HP =735 W

503 W= 7.1x10^-2 HP

D) efficiency =(output/ input) *100

so 16= (53/input) *100

input= 7.1x10^-2

Suppose that Reid weighs 72 kg. 2. The mouse macaque of India is the shortest primate on Earth, with an average weight of just 30.0 g. Imagine that this lemur swings 

What does the statistical term "average" mean?

Average. In everyday speech, a average is a specific number chosen to represent a collection of figures. In various settings, various average ideas are utilized. The word "average" frequently refers to the mathematical mean, which is the total of the values divided by the number of numbers being averaged. Statistical terms: mean, median

What are the several definitions of average?

In various settings, various average ideas are utilized. The word "average" frequently refers to the mathematical mean, which is the total of the integers divided by the amount of numbers being averaged. Mean, average, and mode all are considered measures of normal distribution in statistics, and in common parlance, any of these could be referred to as an average figure.

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Given

Mass of one of the object is doubled and the distance between the object is doubled.

To find

What happens to the gravitational force

Explanation

The gravitational force is directly proportional to the masses and inversely proportional to the distance between them

Keeping all other parameters constant,

So when the mass doubles and the distance doubles we have,

Conclusion

A. The gravitational force becomes half as great.

Answer:

microwave because it will heat it very well