Using complete sentences and correct punctuation and grammar answer the following question. Must be at least 3 sentences.



Explain why Eclipses do not occur every month.

Answer:

A

Explanation:

Momentum change is basically impulse

Object possessing more velocity after bouncing OR the object which bounces more have more impulse

Answer:

A circuit that has little or no resistance

Explanation:

Apex

Little or no current will flow through the circuit beyond the point of the short  a short in a series circuit .

Simply said, a short circuit is a connection with low resistance between the two conductors delivering electricity to any circuit. This leads to an excessive current flow via the "short" in the power source and may potentially result in the power source being destroyed.

When there is a short in a series circuit, the current rises over its typical level. When a component is shorted, the voltage drop across it drops to 0V, while the voltage drop across the intact component rises.

In a series circuit, if there was a short circuit, one of the components would blow up and the circuit, or all the components, would cease to function. All of the lights would consequently go off. That would account for a blackout even if one component had a short circuit.

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Answer:

The orbital velocity \(v = 16.4 \ km/s\)

The period is  \(T = 14.8 \ hours\)

Explanation:

Generally centripetal force acting ring particle is equal to the gravitational  force between the ring particle and the planet , this is mathematically represented as

       \(\frac{GM_s * m }{r^2 } = m w^2 r\)

=>    \(w = \sqrt{ \frac{GM}{r^3} }\)

Here G is the gravitational constant with value  \(G = 6.67*10^{-11}\)

        \(M_s\)  is the mass of with value  \(M_s =5.683*10^{26} \ kg\)

        r is the is distance from the center of the  to the  outer edge of the  A ring

i.e r = R  + D  

Here R  is the radius of the planet   with value  \(R = 60300 \ km\)

         D  is the distance from the  equator to the outer edge of the  A ring with value  \(D = 80000 \ kg\)

So  

       \(r =80000 + 60300\)

=>    \(r =140300 \ km = 1.4*10^{8} \ m\)

So

    =>    \(w = \sqrt{ \frac{ 6.67*10^{-11}* 5.683*10^{26}}{[1.4*10^{8}]^3} }\)

    =>    \(w = 1.175*10^{-4} \ rad/s\)

Generally the orbital velocity is mathematically represented as

       \(v = w * r\)

=>     \(v = 1.175*10^{-4} * 1.4*10^{8}\)

=>     \(v = 1.64*10^{4} \ m /s = 16.4 \ km/s\)

Generally the period is mathematically represented as

     \(T = \frac{2 \pi }{w }\)

=> \(T = \frac{2 * 3.142 }{ 1.175 *10^{-4} }\)

=> \(T = 53473 \ second = 14.8 \ hours\)

Answer:

The orbital velocity \(v = 16.4 \ km/s\)

The period is  \(T = 14.8 \ hours\)

Explanation:

Generally centripetal force acting ring particle is equal to the gravitational  force between the ring particle and the , this is mathematically represented as

       \(\frac{GM_s * m }{r^2 } = m w^2 r\)

Yes, if a body is floating in a liquid, the rise in the liquid level is equal to the body height. This phenomenon is known as Archimedes' principle.

Archimedes' principle says when a body is immersed in a fluid (liquid or gas), it experiences an upward buoyant force equal to the weight of the fluid displaced by the body. Buoyant forces act in the opposite direction to gravity.

When a body floats in a liquid, it displaces a volume of liquid equal to its volume. As a result, the liquid level rises by an amount equal to the height of the submerged part of the body.

This principle holds for objects that float or are partially immersed in a liquid, such as a buoyant boat or a floating object. However, if the body sinks completely into the liquid, the liquid level rise will no longer be equal to its height. Instead, it depends on the density and volume of the submerged object.

The magnetic field in the cyclotron, is 0.292 T.

Angular velocity, ω = 2.8 x 10⁷rev/s

Charge of a proton, q = 1.6 x 10⁻¹⁹C

Mass of a proton, m = 1.67 x 10⁻²⁷kg

A cyclotron is a device that strongly accelerates the charge on charged particles or ions. The cyclotron amplifies the energy of the charged particles through the application of both magnetic and electric fields.

The expression for the angular velocity of the cyclotron is given by,

ω = qB/m

Therefore, the magnetic field in the cyclotron,

B = ωm/q

B = 2.8 x 10⁷x 1.67 x 10⁻²⁷/1.6 x 10⁻¹⁹

B = 0.292 T

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The piece of information that "9” gives about an atom of fluorine is that it is the atomic number (option A).

Atomic number is the number of protons in an atom with the symbol Z. The atomic number is the basis of arrangement of atoms on the periodic table.

Fluorine is a chemical element that has an atomic number of 9. It is the lightest of the halogens, a pale yellow-green, highly reactive gas that attacks all metals.

The atomic number is the number of protons in the nucleus of an atom, which is always equal to the number of electrons in a neutral atom.

Therefore, it can be said that "9" symbolises the atomic number of the element, fluorine.

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Answer:

I would say Basketball, football, or swimming

Explanation:

because they are fun and you get in better shape at the same time

Answer: 317.52

Explanation:

I'm just him, so I just know

When a heat engine is operating between two temperatures (QH>QC), the maximum efficiency attainable is Carnot efficiency .

Carnot efficiency is the maximum theoretical efficiency of a heat engine, defined as the ratio of the work done by the engine to the heat absorbed from a high temperature source, as described by the Carnot cycle.

It is considered as the most efficient possible cycle for converting heat into useful work, and serves as an upper bound for the efficiency of all heat engines.

The Carnot efficiency is expressed as a function of the temperature difference between the hot and cold sources, and is independent of the working fluid or materials used in the engine.

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Each of the five friends needs to pay £12 to cover the cost of their own meals and contribute towards the birthday person's meal. Using mean allows us to distribute the cost equally among the friends, ensuring a fair division of expenses for the meal.

To determine how much each of the five friends needs to pay, we can use the concept of averages (mean) and divide the total cost by the number of people paying.

In this scenario, the total cost of the meal for 6 people is £12 per person. Since the other 5 friends have decided to pay for the birthday person's meal, they will collectively cover the cost of their own meals plus the birthday person's meal.

To calculate the total cost covered by the five friends, we can subtract the cost of one person's meal (since the birthday person's meal is being paid by the group) from the total cost. The cost of one person's meal is £12.

Total cost covered by the five friends = Total cost - Cost of one person's meal

= (£12 x 6) - £12

= £72 - £12

= £60

Now, to find out how much each of the five friends needs to pay, we divide the total cost covered by the five friends (£60) by the number of friends (5).

Amount each friend needs to pay = Total cost covered by the five friends / Number of friends

= £60 / 5

= £12

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Answer:

the answer is C baseball and bowling ball

Answer:

cause we hear differently

Explanation:

Answer:

As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder. Relative sound intensities are often given in units named decibels (dB)

Answer: The dependent variable is always the opposite of the independent variable. False ... Scientific theories are broad explanations that are widely accepted as true.

Explanation:

The value added by the baker is $3. The bread's contribution to GDP is the final sale price of the bread, which is $6

In this scenario, each person involved in the production and sale of the bread adds value to the final product. The concept of value added refers to the increase in the market value of a product at each stage of production.

The farmer grows the wheat and sells it for $1. The value added by the farmer is $1.

The miller processes the wheat into flour, increasing its value. The miller sells the flour to the baker for $3, so the value added by the miller is $3 - $1 = $2.

The baker uses the flour to make bread, further adding value to the product. The baker sells the bread to the engineer for $6, so the value added by the baker is $6 - $3 = $3.

The engineer consumes the bread, but since no further economic value is added, there is no additional value added by the engineer.

The bread's contribution to GDP (Gross Domestic Product) is the final sale price of the bread, which is $6. GDP measures the total value of all goods and services produced within a country's borders, and the sale of the bread represents the final output of the production chain.

Overall, the value added at each stage contributes to the final price of the bread, and the final sale price of the bread represents its contribution to GDP.

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umm actually is 10 points

Answer:

75 kg

Explanation:

Net Force

\(\sf \longmapsto F_{net} = 225N\)

Acceleration produced

\(\sf \longmapsto \: a = 3 .0 m / {s}^{2}\)

According to Newton's 2nd Law –

F = m•a

\(\sf \longmapsto \: M = \frac{F}{a} \)

\(\sf \longmapsto \: M = \frac{225N}{300m/s ^{2} } \)

\(\sf \longmapsto \: M = \: 75 \: kg\)

Hence, the mass of an object is 75 kg.

Answer:

  1.15 N

Explanation:

You want to know the force exerted on a mass of 0.003 kg to accelerate it from 0 to 23 m/s in a period of 0.06 s.

The acceleration of the mass is the change in velocity divided by the change in time:

  a = ∆v/∆t

  a = ((23 -0) m/s)/(0.06 s) = 1150/3 m/s²

The force applied is the product of mass and acceleration:

  F = ma

  F = (0.003 kg)(1150/3 m/s²) = 1.15 kg·m/s² = 1.15 N

The applied force is 1.15 newtons.

A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of static and kinetic friction between the hockey puck and the metal ramp are μs = 0.40 and μk = 0.30, respectively. The puck's initial speed is 3.8 m/s, Speed it will have when it slides back down to its starting point is 2.36 m/s

The resistance to motion of one object moving in relation to another is known as friction. It is not regarded as a fundamental force like gravity or electromagnetic, according to the International Journal of Parallel, Emergent and Distributed Systems(opens in new tab). The electromagnetic attraction between charged particles in two contacting surfaces, according to scientists, is what causes it.

using work energy theorem ,

change in kinetic energy = work done by frictional force

\(\frac{1}{2}\) m(\(x^{2}\)-\(y^{2}\)) =  μmghcos30°

where mass is m=200g

x is speed with which it slides back

y is speed at top of metal ramp=3.8 m/s

μ is coefficient of kinetic friction=0.3

g is gravity = 9.8m/\(s^{2}\)

h is height to which hockey puck is reached on metal ramp=1.18m

Substituting the values and solving for speed x,

x=2.36m/s

speed  it will have when it slides back down to its starting point is 2.36m/s

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Based on the information, it should be noted that the resistance R is 0.5 Ω.

When S1 and S2 are open, i leads e by 30°. In this case, the circuit consists of only the inductor (L) and the capacitor (C) in series. Therefore, the impedance of the circuit can be written as:

Z = jωL - 1/(jωC)

Since i leads e by 30°, we can express the phasor relationship as:

I = k * e^(j(ωt + θ))

Z = jωL - 1/(jωC) = j(120π)L - 1/(j(120π)C)

Re(Z) = 0

By equating the real parts, we get:

0 = 0 - 1/(120πC)

Let's assume that there is a resistance (R) in series with the inductor and capacitor. The impedance equation becomes:

Z = R + jωL - 1/(jωC)

Z = R + jωL

Im(Z) = ωL > 0

Substituting the angular frequency and rearranging the inequality, we have:

120πL > 0

L > 0

This condition implies that the inductance L must be greater than zero.

When S1 and S2 are closed, i has an amplitude of 0.5 A. In this case, the impedance is:

Z = R + jωL - 1/(jωC)

Since the amplitude of i is given as 0.5 A, we can express the phasor relationship as:

I = 0.5 * e^(j(ωt + θ))

By substituting this phasor relationship into the impedance equation, we can determine the value of R. The real part of the impedance must be equal to R:

Re(Z) = R

Since the amplitude of i is 0.5 A, the real part of the impedance must be equal to 0.5 A: 0.5 = R

Therefore, the resistance R is 0.5 Ω.

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The space cruiser is 11070000 m far from the planet's surface

The following data were obtained from the question:

We can obtain the distance of the space cruiser from the planet's surface as follow:

s = ut + ½gt²

s = (0 × 600) + (½ × 61.5 × 600²)

s = 0 + (½ × 61.5 × 360000)

s = 0 + 11070000

s = 11070000 m

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c. a natural process

It is a natural process

Answer:

No, the treatment won't work

Explanation:

Since the abscess is filled with gas, and is already putting pressure on the tooth nerve, applying moist heat will only aggravate the problem. The pressure of a given gas increases with temperature and so, the gas within the abscess will only put more pressure on the nerve due to the expansion of the gas within the abcess, causing her more discomfort.

Answer:

Explanation:

1) Displacement of the object will be gotten using simply adding the distances since they are goinf in the same direction (positive y direction)

Displacement= 330km + 220km

Displacement = 550km North

2) For a falling body, the body will possess positive acceleration due to gravity because it is falling under the influence of gravitational force. If a body is not under the influence of gravity and is thrown up, such body wont come back down. Hence the value of acceleration due to gravity of a body falling to the ground is +9.8 m/s² (note that the unit of acceleration is m/s²)

Answer:

The remains of producers are broken down by decomposers.

The remains of consumers are broken down by soil decomposers.

Animals break down food molecules to obtain energy.

Explanation:

Answer:

It is A. B. and C.

Explanation:

Hope this helps

Answer:

No of proton is 13 and nucleus is 13

Answer:

Explanation:

The rms speed:

Vrms = (500 + 600 + 700 + 800 + 900) / 5 = 700 m/s

Answer:

f = 7.97 x 10⁶ Hz = 7.97 MHz

Explanation:

The speed of a wave is given by the following formula:

\(v = f\lambda\)

where,

v = speed of the ultrasound wave through human tissue = 1540 m/s

f = frequency of ultrasound wave required = ?

λ = wavelength of ultrasound waves = smallest detail required = 0.193 mm

λ = 0.193 mm = 1.93 x 10⁻⁴ m

Therefore,

\(1540\ m/s = f(1.93\ x\ 10^{-4}\ m)\\f = \frac{1540\ m/s}{1.93\ x\ 10^{-4}\ m}\)

f = 7.97 x 10⁶ Hz = 7.97 MHz

The impulse of a force is equal to the change in momentum of an object when a force is applied to it over a certain period of time.

Impulse is a fundamental concept in Newton's second law of motion, which states that the force acting on an object is equal to the rate of change of its momentum.

Mathematically, impulse J can be calculated by multiplying the force F applied to an object by the time interval Δt over which the force acts,

J = F * Δt

The impulse of a force can also be expressed as the change in momentum Δp of the object,

J = Δp

Since momentum p is given by the product of an object's mass m and its velocity v:

p = m * v

The change in momentum Δp can be calculated by subtracting the initial momentum p₁ from the final momentum p₂,

Δp = p₂ - p₁ = m * v₂ - m * v₁

Therefore, the impulse of a force is equal to the change in momentum of an object, and it can be calculated by multiplying the force applied to the object by the time interval over which the force acts.

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Newton's second law connects the impulse of a force to the rate of change of momentum, stating that the impulse is directly proportional to the force applied and the time over which it acts.

Newton's second law of motion states that the net force acting on an object is directly proportional to the rate of change of its momentum. The impulse of a force can be explained using this law.

Impulse refers to the change in momentum experienced by an object when a force is applied to it for a certain period of time. It is the product of the force and the time interval over which it acts.

According to Newton's second law, the force acting on an object is equal to the rate of change of its momentum. Therefore, when a force is applied to an object, it causes the object's momentum to change, resulting in an impulse.

Mathematically, impulse (J) can be expressed as J = FΔt, where F represents the force applied to the object and Δt denotes the time interval over which the force acts. The impulse experienced by the object will be greater if the force applied is larger or if the force is applied for a longer duration.

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C) a bicyclist riding up a steep hill

The metaphor for a system with rising gravitational potential energy is "a bicyclist riding up a steep hill." Let's get into greater detail:

A cyclist faces resistance from gravity as they ride up a steep slope. The cyclist's elevation, or height above the ground, rises as they cycle and climb uphill. Gravity is pulling the cyclist down the hill by exerting downward force. The cyclist must apply force to the pedals in order to move forward and overcome the pull of gravity. In order to do this, the bicyclist must transform chemical energy from their body into mechanical energy. The distance of the cyclist from the centre of the Earth grows as they ride up the hill. The height and mass of an object affect its gravitational potential energy. In this scenario, as the bicyclist's height rises, their gravitational potential energy also rises.

     Due to the higher elevation, the energy input from the biker is stored as increased potential energy. When the bicycle descends the hill or does work, this potential energy can be transformed back into kinetic energy or other types of energy.