What is the frequency of a wave with wavelength of 200 meters that is traveling at 5,000m/s

The battery's negative and positive terminals have a 6J/C potential difference. This depicts a separation between a positive charge and a negative charge.

Calculation:

W = qV

W/q = V

42/7 = V

V = 6J/C

For every 1 Coulomb of charge that passes between a 12 volt battery's negative and positive terminals, 12 Joules of electric potential energy are produced. Charge to potential energy change changes in a 12:1 ratio. The difference in potential energy for two Coulombs of charge would therefore be 24 Joules.

The cell is charged by current I that comes from another source. In this situation, the terminal potential difference is Ir times bigger than the emf, hence V=E+Ir.

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Therefore, the maximum acceleration the plane can experience without the cup sliding off the table backwards is 0.30g.

A force that holds an object at rest is called static friction. The definition of static friction is: The resistance people feel when they attempt to move a stationary object across a surface without actually causing any relative motion between their body and the surface they are moving the object across. When there is no relative motion between the object and the surface, static friction is a form of friction force that acts on the body. So, even when the body is moving, it can still act, but there shouldn't be any relative motion.

Consider moving a large, hefty box across the floor. You exert increasing pressure until the box begins to slide. The box is maintained in place by the static friction force. The static friction force pushes back slightly when you push it.

The cup is not moving, therefore The cup has no net force. So, in the x direction, you have the following.

0 = ma - fs

Where an is the plane's acceleration less the static fiction force, and m is the mass of the cup. The static fiction force is zero because there isn't an inclination.

Fs = mus × m × g

Because mus is the coefficient of static friction (provided as 0.30), m is the mass of the cup, and g is gravity at the plane's altitude, rearranging the two equations and finding a should result in the desired result.

a = 0.30g

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This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics from 1500 to 2000.

What is definition of timeline?

A timeline is a display of a list of chronicle in chronological order. It is usually a graphic design showing a long bar tagged with dates paralleling it, and usually present day chronicle.

Timelines can use any appropriate scale representing time, suiting the subject and statements; many use a linear dimension, in which a unit of distance is equal to a set quantity of time. This timescale is incumbent on the chronicle in the timeline.

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A ship travels across the water at a speed of 30 mph while angled 30 degrees south of east. The water is travelling 20 degrees east of north at a speed of 5 miles per hour. Vector for the ship is 25.98i - 15j mi/h.

The water is also travelling at a speed of 5 miles per hour at an angle of 20° south of east, which suggests that it is moving in the first quadrant at an angle of 90° - 20° = 70° east of north. So, the water's velocity has an x-component of v3 = 5cos70° = 1.71 mi/h and a y-component of v4 = 5sin70° = 4.7 mi/h.

V = velocity vector of ship as it goes through water + velocity vector of water current is the velocity vector that accurately depicts the ship's real motion.

V = v + v'

= 25.98i - 15j mi/h + 1.71i + 4.7j mi/h

= (25.98i + 1.71i + 4.7j - 15j )mi/h

= 27.68i -10.3j mi/h

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The change in kinetic energy of the box be 33.47 Joule.

The resistance provided by surfaces in touch as they move past one another is known as friction.

To walk without slipping, traction is provided by friction. In most situations, friction is advantageous. They do, however, give a strong amount of opposition to the move. Additionally, around 20% of an automobile's engine power is used to overcome frictional forces in the moving parts.

Net force acting on the box = 150 N - (mgcos32° + μmgsin32°) N = 35.90 N.

Work done by this force = fs = 35.90 × 9.01 = 323.47 Joule.

Hence, the change in kinetic energy = 33.47 Joule.

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Distant planet having rings have a good likelihood of moons inclined to equatorial plane.

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The magnetic field inside the solenoid is increased.

Magnetic Field is the region around a magnetic material of  or a moving electric charge to the within which the force of a  magnetism acts. A pictorial to  representation of to be the relative magnetic field of  which describes how to a  magnetic force is the  distributed within and around a magnetic material.

The magnetic field around the  the current carrying of to a  solenoid is similar to their magnetic field produced by the bar magnet.

When a soft iron bar is the  introduced inside a current of the  carrying solenoid, the magnetic field inside thd left solenoid will increase.

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The kid's total displacement is 66m.

The formula for calculating distance, d = st, or "distance equals speed times time," can be used. Because they both refer to the amount of movement per unit of time, such as miles per hour or kilometers per hour, speed and rate are comparable. The equation r = s = d/t holds if speed s = rate r.

In first case

Distance = speed × time

Distance = 3×7

Distance = 21m

In second case

Distance = speed × time

Distance = 9×5

Distance = 45m

Total displacement = 21+45

Total displacement = 66m.

So, the kid's total displacement is 66m.

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Based on the fact that the center of mass and the center of gravity in the parallel gravity field close to the earth's surface are the same. The experimental measurement of a body's center of mass makes use of gravity forces on the body.

The center of mass is a point determined with respect to an object or group of objects. It shows the system's average location, weighted by the mass of each component.

The center of mass will always rest immediately underneath a shape if it is suspended from a single point.

Therefore,  the center of mass is where two lines that are drawn down downward from two different places on a shape (one at a time) intersect.

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A automobile engine that performs 500 j of effort in one cycle and has a thermal performance of 50% needs 1000 j of energy for input each cycle.

Energy can take on a variety of shapes. Energy can take many different forms, such as light, heat, mechanical, electrical, acoustic, chemical, nuclear, or atomic energy.

Energy can only be converted or moved through one form to another; it cannot be created or destroyed. For instance, kinetic energy is produced from chemical energy.

Efficiency = (E out / E in) × 100%

E in = (E out / 50) × 100

E in = (500 / 50) × 100

E in = 1000j

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According to the given statement 25 grams was the original mass of the sample.

The mass of matter that makes up every object or body is the greatest way to understand mass. Everything that we can see has mass. Examples of objects with mass include a table, a chair, an bed, a baseball, or glass, and even air. The mass of a thing determines whether it is light or heavy.

The first order kinetics rate rule has the following expression:

Where k = rate constant = 0.178 days, t = 2.303/k * log(a/(a - x))

15 days have passed since the sample began, so t 1

a = the reactant's original or initial amount; a - x = the amount left over after the decay process; 1.73g

After plugging in all the values, we get 15=(2.303/0.178) A/1.73 = 10 * log (a/1.73) log (a/1.73) = 15 * 0.178/2.303 ( 15*0.178/2.303)

a = 1.73 * 10^( 2670/2303)\sa

= 1.73 * 10^(1.15935736)\sa

= 1.73 * 14.433024871\sa

= 24.9691330268

Consequently, a weighs about 25 grams.

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An object's position, velocity, acceleration, and direction can all be used to define motion. If an object's position with relation to a fixed point changes, then the object is moving. Even objects that seem to be at rest are in motion.

An object will descend toward the ground with increasing speed as it does so due to gravity. In actuality, an object's velocity rises by 9.8 m/s2, thus by the time it begins to fall, it has a velocity of 9.8 m/s.

Because air resistance slows the speed of the falling object, acceleration during a fall is less with air resistance than it is with gravity.

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A collision occurs between two identical skateboards that are initially at rest and a 4-kg skateboard travelling at 8 m/s. After a collision, if the two hoverboards keep together, the s = 32 m/s.

In physics, collision, often known as impact, is the abrupt, violent coming together in close proximity of two entities, such as, for instance, two pool cues, a golf course and a projectile, a hammer and just a nail head, or two fish road cars if being paired together, or a dropping object and just a floor.

There are three different kinds of collisions: collisions with perfect elastic properties. inflexible collision collision with perfect inelasticity. Every collision involves not one but three collisions: the vehicle contact, the physical collision, or the internal colliding (inside your body).

p = m*v

m = 4 kg

v = 8 m/s

speed = 4kg * 8 m/s

speed = 32 m/s

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Water boils at exactly 100°C (212°F) at normal atmospheric pressure. This is known as the boiling point of water, and it is the temperature at which water transitions from a liquid to a gas (steam) at normal atmospheric pressure. The boiling point of a substance is the temperature at which the vapor pressure of the liquid is equal to the atmospheric pressure, and for water, this occurs at 100°C. The boiling point of water can vary depending on factors such as the altitude and the atmospheric pressure, but at sea level and at normal atmospheric pressure, water boils at exactly 100°C.

The gas has a final volume of 2.4L.

According to Gay Lussac's Law, a gas's pressure is precisely proportional to its Kelvin temperature when maintained at a low volume. The molecule of a gas receive more energy when heated, causing them to move more quickly. This results in increased pressure and more blows on the container's walls.

Briefing:

Given, Initial Volume of the sample = 3L

Initial temperature of the sample, T₁ = 200° C

                                                        = 200 + 273

                                                        = 473 K

Final temperature of the sample, T₂ = 100° C

                                                           = 100 + 273

                                                            = 373 K

By Gay-Lussac's Law is a variant of the general gas equation,

From the above relation,

[tex]\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }[/tex]

[tex]V_{2} = \frac{V_{1}*T_{2} }{T_{1} }[/tex]

Substituting values,

[tex]V_{2}[/tex]= (3x 373) / 473

   = 1119/473

   = 2.4L

Hence ,it is found that the final  volume of the gas is 2.4L

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The relationship between the average atomic mass and the percent composition of isotopes found in nature be:  an element's average atomic mass is calculated by adding the masses of its isotopes and multiplying each percentage result by the element's natural abundance.

The average mass of an element's isotopes, calculated based on their mass number and proportion of abundance in nature, is known as the element's average atomic mass.

The average atomic mass of chlorine is 35.5, for instance.

The formula for average atomic mass is:

Average atomic mass =  [(percentage) mass number a isotope + (percent)mass number of other isotope + ...]÷100

Here, percentage refers to the proportion of an element's first naturally occurring isotope that is abundant.

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The work done by Joe is 0J in balancing a stationary coin 2 m from the top of the floor.

The work is done when an object is raised to a height against gravity. Work done depends on force and displacement caused by that force.

W = F. S

Where,

W = work done

F = Force and,

S = displacement caused in an object in the direction of the force.

Since the object has not been raised against gravity, there is no force against which work has been done.

F = 0 N, S = 2 m

W = 0× 2 J

= 0 J

The work done is 0J

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As the glacier melts, water travels toward the ocean along the geological feature labeled x. when water erodes soil along this feature, the feature will most likely become wider.

Reduced soil fertility due to erosion can have a detrimental impact on agricultural output. Additionally, it pushes soil-saturated water downstream, which may result in thick layers of sediment that obstruct rivers and streams from flowing freely and finally cause flooding. The likelihood of soil erosion reoccurring increases after it occurs.

When rain or snowmelt shifts the soil on the ground, water erosion occurs. More soil is moved or transported away when there is more water running across the ground. Water erosion is particularly dangerous on bare land, including farm areas that have been cleared of crops after harvest.

For instance, water erosion leads to soil structure loss, surface crusting, waterlogging, a decrease in organic content, and the dissolution of stable aggregates. Soil resources quickly degrade in the face of such a barrage. Farming gets increasingly expensive and complex.

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Oxygen and carbon dioxide are examples of substances that exist as gases at room temperature, while water and mercury metal are examples of substances that exist as liquids. At room temperature, the majority of metals are solids. These three states are all possible for substances.

i) Solids are typically more dense than liquids, which are more dense than gases. There is not much room between the particles in the solid, which are touching. Although there are occasionally gaps between the particles in a liquid, they typically still touch. Large gaps exist between the gas particle.

ii) Because of the variations in their molecules, matter can exist in various states. Solids, for example, are predetermined in terms of size and shape. Contrarily, liquids can be molded to fit the shape of the container they are in because they are flexible. Last but not least, gases diffuse to completely fill the space.

iii) Solids are discrete in their shape and volume. Although they take on the shape of the container, liquids have a specific volume. The shape and volume of gases are ambiguous.

Depending on the shape of their container, a liquid and a gas will adapt their shape. In order to fit inside the container, a gas will change volume. In general, gases are less dense than liquids, which are less dense than solids. There is barely any distance between the particles in the solid from one another.

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Answer:

Radiation

Explanation:

Hope it helps!

6.94 mins time will it be until there are 60 grams of the element remaining.

Given data :

F is the future amount (we want it to be 60)

P is the present amount (580 now)

r is the rate of decay per minute (27.9% = 27.9/100 = 0.279)

t is the time it takes (what we want to find)

Substituting, we get our answer to be:

F = P [tex]( 1 - r )^{t}[/tex]

60 = 580 [tex]( 1 - 0.279 )^{t}[/tex]

60 =  580 [tex](0.721)^{t}[/tex]

0.1034 = [tex]0.721^{t}[/tex]

Ln ( 0.1034) = Ln [tex](0.721^{t} )[/tex]

Ln ( 0.1034)  = t x ( 0.721)

t = [tex]\frac{Ln(0.1034)}{Ln(0.721)}[/tex] = 6.94

So, it is going to take about 6.94mins, rounded to nearest tenth (1 decimal), we have:  About 6.94mins

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Conservation of momentum states that the momentum remains constant within the problem region. Momentum is neither created nor destroyed, it is changed only by the action of force in the sense of Newton's laws of motion.

For head on elastic collision both momentum and energy are conserved.

Initial Momentum = Final Momentum

v = mv₁ + 12.5mv₂

m = mass of neutron

v = final velocity of neutron after collision

v₁ = initial velocity of neutron

v₂ = velocity of atom

v = v₁ + 12.5v₂

Energy before = energy after

½ m v² = ½ m v₁² + ½ (12.5m) v₂²

v² = v₁² + 12.5 v₂²

We want to find the fraction of the neutron's kinetic energy is transferred to the atomic nucleus.

KE/KE = (½ (12.5m) v₂²) / (½ m v²)

KE/KE = 12.5 v₂² / v²

KE/KE = 12.5 (v₂ / v)²

We need to find the ratio v₂ / v.

Solve for v₁ in the momentum equation and substitute into the energy equation.

v₁ = v − 12.5 v₂

v² = (v − 12.5 v₂)² + 12.5 v₂²

v² = v² − 25 v v₂ + 156.25 v₂² + 12.5 v₂²

0 = -25 v v₂ + 168.75 v₂²

0 = -25 v + 168.75 v₂

25 v = 168.75 v₂

v₂ / v = 25 / 168.75

v₂ / v = 0.148

Hence, the fraction of the kinetic energy transferred is:

KE/KE = 14.1 (0.148)²

KE/KE = 0.296

Part 2/2

If a fraction of 0.296 of the initial kinetic energy is transferred to the atomic nucleus, the remaining 0.704 fraction must be in the neutron.

Therefore, the final kinetic energy is:

KE = 0.704 (4.31 ×10⁻¹³ J)

KE = 3.034 × 10⁻¹³ J

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The observed frequency will be greater than the source’s frequency (option - B) is correct answer.

If the source and observer are moving simultaneously in either case—moving observer or moving source—you'll notice that the frequency increases. The frequency decreases if they are drifting apart. Whether the source is moving or the observer is moving will affect how much the frequency changes.

Although the waves move at the same speed, the frequency that is observed is affected by any relative movement between the source and the observer. The wavelength changes along with the observed frequency. When an observer and a source are moving in the same direction, the frequency rises and the wavelength falls.

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Answer:

As the patient passes through the CT imaging system, a source of x rays rotates around the inside of the circular opening. A single rotation takes about 1 second. The x-ray source produces a narrow, fan-shaped beam of x rays used to, irradiate a section of the patient's body.

The patient table is continually pushed through the gantry's hole as the x-ray tube revolves around the patient. This enables the acquisition of a continuous set of attenuation data in a helical or spiral manner; as a result, this generation of scanner is known as a helical/spiral scanner.

A narrow x-ray beam is quickly spun around a patient's body during a procedure known as "computed tomography," or CT. This produces signals that are then analyzed by the machine's computer to create cross-sectional images, or "slices," of the patient's body.

These sections, which are known as tomographic pictures, can provide a clinician with more specific information than traditional x-rays. A three-dimensional (3D) image of the patient can be created once a number of successive slices have been collected by the machine's computer. This makes it easier to identify the patient's basic anatomy as well as any potential tumors or anomalies.

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Not all forces can be out of balance, though.

Option a is correct.

The size and direction of a vector quantity are its two distinguishing features. The magnitude and direction of two vector values of the same kind must be compared when comparing them.

The charging of the hair and the paper's attraction to it. Another illustration of a non-contact force is the proximity of two magnets. Gravity is what causes a ball to fall freely toward the earth. Non-contact forces include things like leaves falling from a tree.

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When F1 and F2 are given , then acceleration vector, a(x, y) is calculated as = (-1,5) m/s².

In science, 'force' has a precise meaning and we can say that a force is a push or a pull. A force is exerted on an object by another object.

Newton's 2nd Law is given by:

F = m*a

Where F is a vector and mass is scalar therefore, acceleration is also a vector. As Vector/Scalar = Vector.

Now, F1 + F2 = F(net)

So, (3-5, 4+6) = (x1+x2, y1+y2)

F(net) = (-2, 10)

F(net) = m*a

Then, acceleration = F(net) /m

= (-2/2, 10/2)  = (-1, 5)

Acceleration vector, a(x, y) = (-1,5) m/s².

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The overexposure to UV light often result in sunburn but the overexposure to visible light  doesn't result in the same because UV light can pass through all the layers of the Earth and have drastic effects on the human body.

A sunburn is caused by ultraviolet rays. For ultraviolet rays, clouds are semi transparent, so we can get sunburn even on a cloudy day. However, glass is opaque to UV rays. The rays cannot reach them and so we are protected from sunburn.

UV rays are carcinogenic in nature, it is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds. While it has some benefits for people, including the creation of Vitamin D, it also can cause health risks.

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Speed of the rocket under uniform circular motion is 4.97 * 10^13 m/s.

We know that the orbital speed of a satellite is given by:

[tex]v_{0} = \sqrt{GM/r}[/tex]

Where, G = gravitational constant = 6.67 * 10^7 N

            M = mass of earth = 5.97 * 10^24 Kg

            r = distance of satellite from earth = 8 * 10^5 m

Putting these given  values in above equation, we get

[tex]v_{0} = 4.97 * 10^{13} m/s[/tex]

The orbital speed does not depend upon the mass of object.

So the speed of the rocket under uniform circular motion around earth is

4.97 * 10^13 m/s.

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Carbon dioxide enters this same leaves during photosynthesis, while oxygen gas is released.

The method whereby a plants use carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis. The four stages of photosynthesis include light absorption, redox reactions, ATP production, and carbon fixation.

While photosynthesis is the method used by plants to convert back into carbon dioxide with the aid of sunlight, it is significant. Both oxygenic and anoxygenic sunlight are possible. Plants that produce oxygen (O2) & glucose during procedure of photosynthesis, which involves breaking apart the reaction mixture of co2 and water and recombining them (C6H12O6).

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