What magnitude of force, in newtons, must an 82.5-kg grouper exert to stay submerged in salt water (with density 1025 kg/m3) if its body density is 1015 kg/m3

Q is the charge's magnitude, V is its velocity, X is the angle formed by the magnetic field's direction and the charge's motion, and B is the strength of the magnetic field.

We must divide this amount by the mass of the charged particle or particles in order to determine the acceleration. Its speed at a later time is 1. 20 Mm/s (non relativistic because v is much less than the speed of light). When a refractive index diminishes over time, light shifts its frequency, which is referred to as photon acceleration [13,14]. Similar to charged particle acceleration, a rise in group velocity is accompanied by an increase in photon energy, or frequency.

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molecule possesses neutrons and a total electric charge of one Coulomb. e is the electronic value, 1.60 x 10-19 Coulombs, and the proton has a cost of +e while the electron has a fee of -e.

The quantity of charge carried by a present of one amp for one second is measured in coulombs, which is the unit of measurement used in the SI for electric charge. It may also be a quality of a substance that causes magnetic and electric effects to occur. The symbol for it is C. According to math, 1 Coulomb equals 1 Ampere x 1/sec.

A coulomb is an unit of power charge that represents the charge that is transmitted over one ampere of current in one second. Colomb's rule. depending on the charged items, electric force.

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The astronaut being pushed back into his seat as the rocket accelerates - this was the  example of Newton's first law of motion.

According to Newton's First Law, a body in uniform motion or at rest will remain in that state up to and unless a net external force acts on it.

When the astronaut  worked at the space center launching rockets, no force is worked on him. When the rocket accelerates, according to  Newton's first law of motion, the astronaut remains in same motion, that's why, he pushed back into his seat .

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It is to be noted that based on the information provided, it is not possible to calculate the distance of the planet from its sun as we need more information about orbit and its eccentricity.

The distance of your fictional planet from its sun, and its orbital period, can be calculated using the information you've provided about its day duration, orbit duration, year duration, and radius.

The distance between a planet and its sun is known as an astronomical unit (AU). To calculate the distance in AU, you can use the formula: d = (T² * G * M_sun) / (4 * pπ²)

where T is the planet's orbital period in Earth years, G is the gravitational constant (6.67 x 10^-⁻¹¹ m³ kg^⁻¹ s^⁻²), M_sun is the mass of the sun (2 x 10^30 kg), and pi is the mathematical constant (3.14).To find the orbital period you need to know year duration in seconds and divide it by 365.25 for Earth-based standard.

With that you can calculate the distance of the planet from its sun. The calculation of axial precession, tilt and oscillation etc don't provide information about the distance from its sun or the orbital period, It helps us to understand the planet's rotation around it's axial and the behaviors of the planet's climate because of axial tilt, precession and oscillation

Also, radius, planet mass and circumference also don't provide any information about distance of the planet from its sun or the orbital period as well.

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Answer:

V = 72000 volts

Explanation:

calculates the electric potential of a point B that is 75cm from a positive charge q = 9 × 10-6c

Given that,

Electric charge, [tex]q=9\times 10^{-6}\ C[/tex]

We need to find the electric potential of a point B that is 75 cm from this charge. The formula for the electric potential is given by :

[tex]V=\dfrac{kq}{r}\\\\V=\dfrac{9\times 10^9\times 6\times 10^{-6}}{0.75}\\\\V=72000\ V[/tex]

So, the electric potential is equal to 72000 Volts.

We are given:

Initial velocity (u) = 0 m/s            [starting from rest]

Final velocity (v) = 10 m/s

Acceleration (a) = 2 m/s²

Time taken = t

Solving for time taken:

v = u + at             [first equation of motion]

10 = 0 + (2)(t)       [plugging the values]

10 = 2t

t = 5 seconds

Explanation:

Work is the energy needed to apply a force to move an object a particular distance, where force is parallel to the displacement. Power is the rate at which that work is done.

Explanation:

Some possible units for each

Work =F⋅d=N⋅m=J=kgm2s2

Power =F⋅dt=F⋅v=N⋅ms=W=Js=kgm2s3

The relation p=w/t

The electric field in the region r ≤a is E [tex]= - \frac{r}{4\pi a^3} . \frac{Q}{e_0} r[/tex]

The total charge is enclosed within the Gaussian surface.

Q[tex]_{enc}[/tex] = 2Q - Q = Q

Therefore, applying Gauss's law over the Gaussian surface

∫[tex]_{s}[/tex]E.dS = Q[tex]_{enc}[/tex]/ε₀ ⇒ E.4πr² = Q/ε₀ ⇒ E = Q/4πε₀r²(r)

In question solution:

A[tex]_{sphere}[/tex] = 4πr²

ΦE = ∫E⋅dA

ΦE = q/ε₀

  E = q/(A⋅ε₀)

  E = q/(4πr²ε₀)

for r≤a, qin = -Q

               E [tex]= - \frac{r}{4\pi a^3} . \frac{Q}{e_0} r[/tex]

So, the electric field in the region is   E [tex]= - \frac{r}{4\pi a^3} . \frac{Q}{e_0} r[/tex]

Your question is incomplete but most probably your full question was:

A uniformly charged ball of radius a and charge −Q is at the center of a hollow metal shell with inner radius b and outer radius c. The hollow sphere has a net charge of +2Q.

Part A: Determine the electric field strength in the region r ≤a. Give your answer as a multiple of Q/E0. Express your answer in terms of some or all of the variables a, b, c, r, and the constant π.

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Answer:

Key terms

TermMeaningTransverse waveOscillations where particles are displaced perpendicular to the wave direction.Longitudinal waveOscillations where particles are displaced parallel to the wave direction

Answer:

The Answer is C

The speed of light in a vacuum is the same for all frames of reference.

Explanation:

Answer:

C .The speed of light in the vacuum is same for all frames of reference.

Explanation:

A set of abstract coordinate system that explains the position or motion of something mathematically and physically by the set of reference points and geometric points.

What is Special relativity ?

It explains the effect on mass ,time and space by the speed . It also relates the speed of light , mass and energy.

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Answer:

6

Explanation:

Answer:

6 m/s

Explanation:

Velocity = Distance/Time

              = 84 meters/14 seconds

              = 6 m/s

Hope this helps! :)

The velocity of the other piece of the pinata which has a mass of 3.86 kg

is 0.67 m/s

The mass of the candy-filled pinata = 4.4 kg

The mass of the first piece of the pinata = 0.54 kg

The velocity of the first piece of the pinata = 4.8 m/s

The mass of the second piece = 3.86 kg

The velocity of the other piece can be found using the formula,

          mu = m₁v₁ + m₂v₂

where m is the mass of the pinata

           u is the velocity of the pinata at rest

           m₁,m₂ are the masses of the first and second pieces of pinata

           v₁,v₂ is the velocity of the two pieces

Let us substitute the known values in the above equation, we get

          4.4 x 0 = 0.54 x 4.8 + 3.86v₂

                       = 2.592 + 3.86v₂

            3.86v₂ = -2.592

                    v₂ = 2.592/3.86

                         = 0.67 m/s

Therefore, the velocity of the other piece is 0.67 m/s

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Upon travelling at an altitude of 10.0 km, a passenger aircraft weighing 7.0 x [tex]10^{6}[/tex] N  potential is the energy.

Potential energy and kinetic energy are fundamentally different from one another because one is the energy of what can be and the other is the energy of what is. Or to put it another way, potential energy is immobile and ready to be unleashed;

Due to the object's motion, kinetic energy loses some energy in the form of light energy, heat energy, and friction; these things do not occur in the potential energy, which is the reason why kinetic energy is not more than the potential energy.

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Answer:

I will help you but I don't understand the language

Answer:

Convection cells

Explanation:

As the cold air moves away from poles, it begins to warm up. This warm air now becomes lighter and the pressure drops significantly at 60° N and 60° south latitude. The air from poles further gushes into these belts because the low pressure created. Thus, convection cells are formed because this rise and fall of air in circular pattern.

Hence, the name given is convection cells.

The required kinetic energy of man diving out at 10 m from water is calculated to be 35.3 kJ.

Given that,

Mass of the man m = 120 kg

Height of the cliff H = 40 m

Distance from the water surface h' = 10 m

The mathematical equation of velocity efflux is

v = √( 2g ( H - h') = √( 2 × 9.8(40-10) = 24.25 m/s

The expression for kinetic energy of the man = 1/2 m v²

K.E = 1/2 m v² = 1/2 × 120 × 24.25² = 35283.75 J = 35.3 kJ

Thus, we can conclude that the kinetic energy of man diving out at 10 m from water is 35.3 kJ.

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Answer:

Explanation:

The motion of a vehicle been driven by an impaired driver will be different in some ways from a vehicle driven by an unimpaired driver

and what a police officer might observe/ notice will include some of the following :

A radio message is sent home by astronauts in a spaceship approaching Mars at a distance of from Earth.

A contact from Mars travels [between 3 and 22] minutes at light speed to reach Earth. Relativity contributes to the fact that the distance between Earth and Mars is 1.26 seconds longer.

A Mars year is roughly equivalent to two Earth years because of Mars' nearly two-fold longer orbital period than the Earth's. Earth and Mars are 57.6 million kilometers (35.8 million miles) from one another, while 401 million kilometers separate them at their farthest point (249 million mi).

The sole means of contact between Earth and Mars are radio and messenger. A courier will undoubtedly require a lot of time. We can determine how long it will take a radio message to travel between the two planets since radio waves travel at the speed of light (299,792 km/s; 186,282 mi/s). When the two planets are at their closest, the one-way voyage takes the fewest amount of time—3.2 minutes.

The time required for a one-way trip is 22.3 minutes when they are the furthest apart. A round-trip message will take between 6.4 and 44.6 minutes to send and receive. Of course, receiving an answer will take the same amount of time in each situation.

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If we have an unmarked magnet, hold it near a piece of steel and the end that attracts the steel is the north end.

What is the magnet?
A magnet is an object made of certain materials that produces a magnetic field. This field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets. Magnets are widely used throughout the world in a variety of applications, from the simple refrigerator magnet to the most advanced technologies such as MRI machines. Magnets come in many shapes and sizes and can be natural or artificial. The magnetic field of a magnet is caused by the motion of electric charges and is measured in guess.

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With a net electric flux of -3. 63 1016 N/m2/C at its surface, the planet Mars has an electric field that is somewhat similar to that of the earth. There will be 3.26 x [tex]10^{5}[/tex]  of electric charge throughout the entire earth.

The electric flux across any closed surface is proportional to the net electric charge q enclosed by the surface, according to Gauss's law of electricity, which reads as = q/0, where 0 is the electric permittivity of free space, which has a value of 8.854 10-12 square coulombs per newton per square meter.

E is the magnitude of the electric field (with units of V/m), S is the area of the surface, and is the angle between the electric field lines and the normal (perpendicular) to S. If the electric field is uniform, the electric flux (E) travelling through a surface of vector area S is: E = ES = EScos.

Ф = q/ε

⇒ 3.69 x [tex]10^{16}[/tex] x = q/ 8.85 x [tex]10^{-12}[/tex]

q = 3.26 x [tex]10^{5}[/tex]

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The formula that shows the relationship between the surface area (S) and volume (V) for spheres is S = 4πr² and V = (4/3)πr³ where r is the radius of the sphere.

This formula shows that the surface area of a sphere is directly proportional to the radius squared, and the volume is directly proportional to the radius cubed. This means that as the radius of a sphere increases, the surface area and volume will increase at a much faster rate. For example, a sphere with a radius of 2 will have four times the surface area and eight times the volume of a sphere with a radius of 1.

The question is incomplete, hence the answer is general.

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Eudora spent 0.5 hours from home to library and 1.5 hours from library to school.

Given that,

Average speed from home to library S₁ = 12 km/h

Average speed from library to school S₂ = 76 km/h

Total distance = 120 km

Time = 2 hrs

Let the time spent from home to library  be x. So, from library to school will be = 2 - x

S₁ = 12 km/h

Time spent from home to library T₁ = x

S₂ = 76 km/h

Time spent from library to school T₂ = 2 - x

Distance can be calculated as, D₁ = S₁ T₁ = 12 x

D₂ = S₂ T₂ = 76(2 - x) = 152 - 76 x

As, D₁ + D₂ = 120

12 x + 152 - 76 x = 120

-64 x = -32

x = 0.5

So, T₁ = 0.5 hrs

T₂ = 2 - 0.5 = 1.5 hrs

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the scale's readout if indeed the elevator is decelerating faster than 160 lb .

Your perceived weight is equal to the normal force.Therefore, whenever the elevator accelerates or upwards downward, you truly feel tiny bit heavier than normal and a little lighter than usual.

Any jump you make would only slow the lift's descent to the ground by a very small amount.Even though you could jump perfectly timed and with all the force your legs could produce, it would be pointless.Your greatest option, as opposed to jumping, is to fold down.

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Answer: The amount of Torque produced is 7.2 Nm.

Explanation:

Given:

Force applied (F) to the end of a wrench = 60 Newton

Length of wrench = 0.12 meter

To find:

Quantity of Torque produced

Solution:

The quantity of Torque produced can be calculated from the following formula:

Ƭ = r F sin(θ)  

Where,

Ƭ = Torque, r = radius, F = Force,  (θ) =  angle between F and the lever arm  

In the given question,

r = 0.12,

F= 60,

(θ)= 900           {Since the force is applied at the end of a wrench, it must be perpendicular}

Torque (Ƭ) = 0.12* 60 * sin 900

               = 7.2 m                    {sin 900 = 1}

Hence, in the given situation, 7.2 Nm Torque will be produced.

Your weight would be 85.7N if the Earth were seven times as massive as it is and had a radius three times that of today since the gravitational pull is reduced by seven times with an increase in radius.

Gravitation is a fundamental interaction in physics that produces attraction between all objects with mass or energy. Of the four fundamental interactions, gravity is by far the weakest, being about ten times less than the strong interaction. A body's mass is a fundamental characteristic. Before the discovery of the atom and the field of particle physics, it was generally thought to be tied to the amount of matter in a physical body. x = 600N/7, x = 85.7N

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We know, formula of capacitance in parallel plate capacitor is given by :

[tex]C = \dfrac{\epsilon_o A}{d}[/tex]

Here, [tex]\epsilon_o = 8.85 \times 10^{-12} \ F.m^{-1}[/tex]

So,

[tex]A = \dfrac{Cd}{\epsilon_o}\\\\A = \dfrac{1.11 \times 10^{-9}\times 8.89 \times 10^{-7}}{8.85\times 10^{-12}}\\\\A = 1.11 \times 10^{-4}\ m^2 \ or \ 1.11 \ cm^2[/tex]

Hence, this is the required solution.

Answer:

7.09797297 • 10^-7

Explanation:

You just follow the formula:

C = εA/d

ε = 8.85 • 10^-12

A = 8.89 • 10^-7

D = 1.11• 10 ^-9

So:

C = (8.85 • 10^-12)(8.89• 10^-4)/1.11 • 10 ^-9 = 7.09797297 • 10^-7

Good Luck!  :)

In the given reaction, 2Mg(s) + O₂ (g) → 2MgO (s), 88.7 kJ of energy will be released.

The reaction 2Mg(s) + O₂ (g) → 2MgO (s) involves the release of energy from the system and hence it is an exothermic reaction. 21.2 kcals of energy is released from this reaction.

21.2 kcals = 21.2 × 10³ calories

1 cal = 4.184 J

For 21.2 × 10³ calories,

21.2 × 10³ cal × 4.184 = 88.70 × 10³ cal

To convert J to kJ, we divide it by 10³

88.70 × 10³ / 10³ = 88.70

Rounding off to nearest tenths, the amount of energy released by the given reaction in kJ = 88.7 kJ

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