A kid is bouncing on a pogo stick. He oscillates 22.0 times in 14.9 S. What is his frequency? (Unit = Hz)​

The answer for (iv) is;

E.M.F of the battery refers to the chemical energy in the battery that is being converted into electrical energy for the flow of electrons to carry current in a circuit.

In our solar system, distances are really great. Therefore, astronomers frequently avoid using miles or kilometers when describing the distances to planets, asteroids, comets, or spacecraft.

They substitute astronomical units, or AU, which represent the typical separation of the Earth from the sun. That translates to around 93 million miles, 150 million kilometers, or 8 light-minutes.

It is simpler to visualize relative distances in space when thinking in terms of astronomical units.  An astronomical unit is 92,955,807 miles in exact distance (149,597,871 km).

The orbit of the Earth around the sun is not a complete circle. Consequently, during the year, Earth's distance from the sun varies. Earth is approximately 0.983 AU from the sun when it is at perihelion, which occurs in January.

Therefore, In our solar system, distances are really great. Therefore, astronomers frequently avoid using miles or kilometers when describing the distances to planets, asteroids, comets, or spacecraft.

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The diagram and information in the section "Stages of Photosynthesis" provide a coherent understanding of the light and dark reactions of photosynthesis.

The light-dependent reactions occur in the thylakoid membranes of the chloroplasts and are driven by light energy. The light energy is absorbed by pigments such as chlorophyll and converted into chemical energy in the form of ATP and NADPH. The light-dependent reactions also produce oxygen gas as a byproduct.

The ATP and NADPH produced in the light-dependent reactions are then used in the light-independent reactions, which occur in the stroma of the chloroplasts. The light-independent reactions, also known as the Calvin cycle, use carbon dioxide and the energy from ATP and NADPH to synthesize glucose and other organic compounds. The Calvin cycle does not directly require light, but it is dependent on the products of the light-dependent reactions.

Together, the light-dependent and light-independent reactions of photosynthesis form a coherent cycle that allows plants and other photosynthetic organisms to convert light energy into chemical energy in the form of glucose and other organic compounds. The diagram and information in the section "Stages of Photosynthesis" provide a clear visual and textual representation of this process, helping to develop a coherent understanding of the overall process of photosynthesis.

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The eyes of a farsighted person are shorter than normal; therefore light rays tend to focus behind the retina.

What is Farsightedness:

Farsightedness is caused by a cornea that isn't curved enough or It causes by an eyeball that's too short.

These two problems prevent light from focusing directly on the retina.

so, the light rays focus behind the retina.

Hence,

The eyes of a farsighted person are shorter than normal; therefore light rays tend to focus behind the retina.

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Answer:

Sorry for being late. Hope this helps

Explanation:

To stack and secure pallets properly, you may use "dunnage" to fill an empty space on a pallet. Dunnage is a term used for materials such as inflatable bags, foam blocks, or cardboard that are specifically designed to fill gaps and provide cushioning, stability, and support for the products being transported.

Using dunnage helps to:

1. Prevent product damage: Filling empty spaces with dunnage keeps the items on the pallet secure and prevents them from moving around during transportation, reducing the risk of damage.

2. Maximize stability: Properly placed dunnage adds stability to the pallet stack, preventing it from tipping over or collapsing under the weight of other pallets.

3. Maintain load integrity: By filling empty spaces, dunnage helps maintain the intended shape and arrangement of the load, ensuring that it arrives at its destination in the same condition as when it left the warehouse.

4. Enhance safety: Dunnage minimizes the risk of accidents during transportation and handling, protecting both workers and the products themselves.

In summary, using dunnage to fill empty spaces on a pallet is essential for stacking and securing pallets properly, as it helps prevent product damage, maximize stability, maintain load integrity, and enhance safety.

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Answer:

Below

Explanation:

Mech adv = effort arm / load arm = 15 / 5 = 3

To solve this we must be knowing each and every concept related to force. and its different types. Therefore,  the mechanical advantage is 3.

A force is an outside entity that has the power to alter a body's state of rest or motion. It has a direction and a magnitude. The point where forces are applied is determined either by the force's direction as well as the application of the force.

Your training at this level should place a major emphasis on the idea which a push or even a pull was refereed to as a force. In our daily lives, forces appear in a variety of ways. as in weight and power. It refers to the force a bat applies to a ball and the strength a hairbrush has when stroking hair.

Mech adv = effort arm / load arm = 15 / 5 = 3

Therefore,  the mechanical advantage is 3.

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Answer:

the result of raising the temperature of the room in which a low-pressure chiller is located is a

Faster Refrigerant Recovery

On increasing the temperature, the pressure of chiller will increase, causing the blow of hot air in the condenser, which is quite harmful for mechanism of machine.

The given problem is based on the effect of raising temperature on low-pressure chiller.

Thus, we can conclude that on increasing the temperature, the pressure of chiller will increase, causing the blow of hot air in the condenser, which is quite harmful for mechanism of machine.

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Answer: 3.045 km/s

Explanation:

When an object is doing a circular motion, the velocity of the object is written as;

v = r*w

where;

r = radius of the circle

w = angular velocity.

In this case, we know that:

w = 7.25*10^(-5) s^-1

And the radius will be equal to the radius of the Earth, plus the height of the satellite, this is:

R = radius of the Earth + 35600 km = 6400km + 35600 km  = 42000 km

Then the velocity of the satellite will be:

v =  42000 km*7.25*10^(-5) s^-1 = 3.045 km/s

The velocity of a satellite with an orbit 35600 km above the surface of the earth and an angular velocity of 7.25×10–5 rad/sec = 3045 m/s

Velocity: This is the rate of change of displacement.

To solve this problem we need to use the formula for calculating the velocity of  an object in circular motion

The Velocity of the satellite is given as

V = ωr................ Equation 1

where V = velocity of the satellite, ω = angular velocity of the satellite, r = radius of the circle.

Note: r = height of the satellite above the surface of the earth+Radius of the earth

From the question,

Given: ω = 7.25×10⁻⁵ rad/sec, r = 35600+6400 = 42000 km = 4.2×10⁷ m

Substitute these values into equation 1

V = (7.25×10⁻⁵)(4.2×10⁷ )

V = 30.45×10²

V = 3045 m/s

Hence, the velocity of the satellite is 3045 m/s

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To find the maximum speed the car can travel without slipping, you can use the formula:

v = sqrt(μ * g * r)

where v is the maximum velocity, μ is the coefficient of friction, g is the acceleration due to gravity (9.8 m/s^2), and r is the radius of the turn.

Plugging in the given values, you get:

v = sqrt(0.60 * 9.8 m/s^2 * 75 m) = sqrt(45.9 m^2/s^2) = 6.8 m/s

So the maximum speed the car can travel without slipping is approximately 6.8 m/s.

It's important to note that this formula assumes that the car is following a circular path around the turn and that the friction force is the only force acting on the car. If either of these conditions is not met, the actual maximum speed may be slightly different.

One step of copper mining requires blasting ore to be able to blasted and extracted from mine.

Mercury is used to recover minute pieces of gold that is mixed in soil and sediment. Sometimes Mercury can be lost in this process resulting in widespread contamination of local rivers and lakes.

Hundreds of tons of rock are unearthed, moved and crushed in mining operation significantly increasing the amount of dust and particulates in the air.

Strip mining (also known as mountaintop removal) involves scraping away earth and rocks to get to coal buried near the surface. This often results in the destruction of ecosystems.

one step of copper mining requires blasting ore to be able to blasted and extracted from the mine

⇢During this process,the destruction caused will affect the soil and the ground ( Lithosphere)

Mercury is used to recover minute pieces of gold that is mixed in soil and sediment. Sometimes mercury can be lost in this process resulting in widespread contamination of local river and lakes

⇢ The widespread contamination of local river and lakes will pollute the water bodies ( hydrosphere)

Hundreds of tons of rock are unearthed, moved, and crushed in mining operations significantly increasing the amount of dust and particulates in the air.

⇢The particles which will get mixed in the air,will make it poisonous to breath, resulting in a polluted atmosphere

Strip mining (also known as mountaintop removal) involves scraping away earth and rocks to get to coal buried near the surface. This often results in the destruction of ecosystems

⇢This process has potential to destroy the ecosystem which comes under the biosphere

If something is living it usually has to eat something to thrive, for example a tree photosynthesis to get the nutrition it needs while a rock just sits there and isn't living.

Answer:

To be considered living it have to use energy, it has to be made of cells. Something living is also referring to things that were once living

Explanation:

When we meet an oncoming large vehicle on a two-lane country road, then the best thing which should be done to avoid turbulence created is lane-right position.

Turbulence is one of the most unpredictable of all the weather phenomena which are of significance to the pilots of the aircraft. Turbulence is an irregular motion of the air which is resulting from the eddies and the vertical currents.

Turbulence may be an insignificant phenomena as a few annoying bumps or severe enough to momentarily throw on an airplane which is out of control or to cause the structural damage. Turbulence is associated with the fronts, wind shear, thunderstorms, etc.

When we meet an oncoming large vehicle on a two-lane country road, then the best thing to do to avoid turbulence is to lane-right position.

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Answer:

m = 100 kg

Explanation:

F = ma

120 = m × 1.2

m = 120 ÷ 1.2

m = 100 kg

The temperature change from the calculation is obtained as 104 degrees.

The term energy is described as the ability to do work. Now we are told that the energy that is added to the water is 435000 joules.

Given that;

H = mcdT

m = mass

c = specific heat capcity

dT = temperature change

dT = H/mc

dT = 435000/1000 *  10^-3 * 4200

dT = 104 degrees

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Answer:

negative ion

Explanation:

If the atom has more electrons than protons, it is a negative ion, or ANION. If it has more protons than electrons,it is a positive ion.

The angle necessary to keep a 10 kg box motionless, given a coefficient of static friction of 0.55 between the box and the ramp, is 33.4°, which corresponds to Option A.

To determine the angle, we can use the relationship between the coefficient of static friction, the angle of the incline, and the gravitational force acting on the box. The maximum static friction force can be calculated using the formula:

Friction force = coefficient of static friction * Normal force

The Normal force can be found by decomposing the gravitational force acting on the box into components parallel and perpendicular to the incline. The perpendicular component (Normal force) is equal to the weight of the box (mass * gravitational acceleration).

Since the box is motionless, the friction force must be equal to the component of the gravitational force acting parallel to the incline:

Friction force = Component of weight parallel to incline

By substituting the given values and solving for the angle, we find:

coefficient of static friction = tan(angle)

angle = arctan(coefficient of static friction)

angle = arctan(0.55) ≈ 33.4°

Therefore, the correct answer is Option A, 33.4°.

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Hint: By drawing a rough figure we can find the direction of displacement of the person, magnitude can be found by using the Pythagoras theorem.

Explanation:

Let AB be the displacement of the person towards the North, BC be the displacement towards the south and CE be the displacement in the South-West direction. We have to find the displacement of the person from the origin, EA

Consider the right triangle ECD, by Pythagoras' theorem

ED²  +CD²  =EC² → (i)

From fig, CD = AB = 30m

EC = 30√2m

ED = EA + AD

AD = BC = 20m

∴ ED = EA + 20m

(i) → (EA + 20)² + (30)² = (30√2)²

(EA + 20)² + 900 + 1800

EA + 20 = 30

EA=10m

The displacement of the person from the origin will be 10m along West.

The number of pascal equivalent to 1 inch of mercury is 3386.53 pascal

From the question given above, we were told that:

29.92 inches of mercury = 1 atm

101325 pascal = 1 atm

Thus,

29.92 inches of mercury = 101325 pascal

29.92 inches of mercury = 101325 pascal

Therefore,

1 inches of mercury = 101325 / 29.92

Thus, the number of pascal equivalent to 1 inch of mercury is 3386.53 pascal

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Every type of orbit has a specific energy level is the statement of Niels Bohr’s atomic model that is true in this context related as to the atomic model.

According to the Bohr model, electrons orbit the nucleus at constant energies. Higher energy levels are also present in all orbits that are farther from the nucleus.

Here in, the Light is released as energy when any kind of electrons drop to a kind of lower energy level.

A known, the five elements are created by incredibly tiny particles called atoms when John Dalton first proposed the atomic hypothesis.

Atoms of various elements have different kinds of sizes, masses, and physical-chemical properties, which cannot be possibly separated.

Niels Bohr has further also developed a model that was totally focused on the quantum paradigm in response to this hypothesis.

The orbits that have the maximum orbital energy can be seen as 7s,5f,6d,7p.

Since every electron has kind of the same amount of charge, repulsion is what makes these electrons to stay as far apart as possible.

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The simplest compound of hydrocarbon is methane

The electron structure attached

Titanium is a non-magnetic metal because of its digital configuration and crystal shape.

In its pure shape, titanium has a hexagonal near-packed (hcp) crystal structure, this means that that its atoms are organized in a specific pattern in the crystal lattice.

This association outcomes inside the absence of unpaired electrons that could create magnetic moments, making it non-magnetic. Moreover, the electron configuration of titanium does not permit for magnetic moments to shape.

Titanium has four valence electrons, which are positioned within the 3-d and 4s orbitals.

The electrons in the 3d orbital are paired, which means that they've opposite spins and cancel out any magnetic second that could be created by means of the electrons inside the 4s orbital.

But, whilst titanium is alloyed with other metals, inclusive of iron or nickel, it may turn out to be magnetic because of the magnetic houses of these metals.

This belongings is utilized in various programs, inclusive of in the manufacturing of plane and medical implants, where the non-magnetic houses of titanium are important to keep away from interference with electromagnetic gadgets.

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The speed of the bottle when recoiling if it could move freely is 0.092 m/s.

The problem isn't complete. A similar problem is in the attachment. When we free the cork from the bottle, the cork and the bottle have a collision. According to the law of conservation of momentum, the momentum before and after the collision is the same.

p = p'

m₁ v₁ + m₂ v₂ = m₁ v₁' + m₂ v₂'

m₁ v₁ + m₂ v₂ = m₁ v₁' + m₂ v₂'

(0.0075 × 22) + (1.8 × 0) = (0.0075 × 0) + (1.8 × v₂')

0.165 + 0 = 0 + 1.8v₂'

1.8v₂' = 0.165

v₂' = 0.165 ÷ 1.8

v₂' = 0.092 m/s

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Answer:

The Mars appears in the direction of South.

Explanation:

Mars is rising in the east at 6: 30 PM. The period of rotation of earth is 24 hours.

So, 6 hours is the one fourth of the period of rotation of earth. Earth rotates counter clockwise on its axis, so after 6 hours, we see the Mars in the direction of South.

Answer:

The light traveling in any one direction in a straight line is called a ray of light. A group of light rays given out from a source is called a beam of light.

Explanation:

Candle and electric bulbs. The rays coming out from the candle and electric bulb is divergent beam of light.A beam of light is made up of bundles of closely spaced parallel rays.

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Answer:

The light going in any one course orderly is known as a beam of light. A light beam gathering from a source is known as light emission.

That's the definition of a beam of light.

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Thank you!

Answer:

it g hope it helps you out

Answer:

B. 24.2 m/s

Explanation:

Given;

mass of the roller coaster, m = 450 kg

height of the roller coaster, h = 30 m

The maximum potential energy of the roller coaster  due to its height is given by;

\(P.E_{max} = mgh\\\\PE_{max} = 450 *9.8*30\\\\PE_{max} = 132,300 \ J\)

\(P.E_{max} = K.E_{max} \ (law \ of \ conservation\ of \ energy)\)

\(K.E_{max} = \frac{1}{2}mv_{max}^2\\\\ v_{max}^2 = \frac{2K.E_{max}}{m}\\\\ v_{max}^2 = \frac{2*132300}{450}\\\\ v_{max}^2 =588\\\\v_{max} = \sqrt{588}\\\\ v_{max} = 24.2 \ m/s\)

Therefore, the maximum speed of the roller coaster is 24.2 m/s.

Answer:

1. 24.2 m/s

2. 20.4 m

3. 22.5 m/s

4. 109,375 J

5. It is easy to calculate new scenarios.

Explanation:

5/5 on the Maximum Energy Quick Check