Which of these processes is NOT reduced by insulation?

conduction
distillation
convection
radiation

The electrostatic repulsion resists the addition of more charges onto the capacitor. A capacitor consists of two conductive plates separated by an insulating material, or dielectric.

When a voltage is applied across the plates, it causes an electric field to form between them. This electric field causes charges to accumulate on each plate, with one plate gaining a positive charge and the other gaining a negative charge. The voltage across the capacitor is directly proportional to the amount of charge stored on the plates.

It is also important to note that as charge builds up on the capacitor, the electrostatic potential energy stored in the electric field between the plates increases. This potential energy is proportional to the square of the voltage across the capacitor, and it represents the amount of work that could be done by the charges if they were allowed to flow through a circuit. When the capacitor is discharged, this potential energy is converted into kinetic energy as the charges flow through the circuit.

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Kieran had a greater average speed than Jevon. Let us go into more detail in the explanation below. To compare the average speeds of Kieran and Jevon, we need to find out the speed of each person.

We can use the formula speed = distance/time. Kieran ran 8 laps in 18 minutes, which means he ran 8/18 = 0.44 laps per minute. To find out Kieran's speed, we need to multiply this by the length of one lap. If we assume that the length of one lap is 400 meters, then Kieran's speed is:0.44 laps per minute × 400 meters per lap = 176 meters per minute Jevon ran 6 laps of the track, but we don't know how long it took him.

Therefore, we can't calculate his speed directly. However, we can still compare his speed to Kieran's by using ratios. If we assume that Jevon ran the same length of track as Kieran, then we can write the following equation: Kieran's speed/Jevon's speed = Jevon's time/Kieran's time.

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Answer:

b, a, c

Explanation:

The middle one has the shortest wavelength, then it's the top one and the last one has the longest wavelength.

The kinematics and Newton's second law allow to find the results for the questions about the motion of the ball are:

Given parameters

To find

Kinematics studies the movement of bodies, looking for relationships between the position, speed and acceleration of bodies.

         v² = v₀² - 2 ax

Wher vo es la initial veloicity, a the acceleration y x is the distance,

When the ball stops the velocity is zero.

         0 = v₀² - 2ax

         a = \(\frac{v_o^2}{2x}\)  

Let's calculate

         a = \(\frac{38.2^2}{2 \ 0.135}\)  

         a = 5.4 10³ m / s²

Newton's second law establishes a relationship between force, mass, and acceleration of the body.

             F = ma

             F = 0.145 5.4 10³

             F = 7.84 10² N

In conclusion using kinematics and Newton's second law we can find the results for the questions about the motion of the ball are:

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Answer:

Oblique

Explanation:

I think that's the answer I was told this but forgot if this is the right answer if not then sorry

Answer:

350.72 m/s

Explanation:

Formula for velocity of wave is;

v = fλ

Where;

v is speed

f is frequency

λ is wavelength

We are given;

f = 512 Hz

λ = 0.685 m

Thus;

v = 512 × 0.685

v = 350.72 m/s

Answer:

5.2 s

Explanation:

From the question given above, the following data were obtained:

Velocity = 7.5 m/s

Displacement = 39 m up

Time =?

The time taken for the cable cab to get to 39 m can be obtained as follow:

Velocity = Displacement / Time

7.5 = 39 / time

Cross multiply

7.5 × time = 39

Divide both side by 7.5

Time = 39 / 7.5

Time = 5.2 s

Thus, the time taken for the cable cab to get to 39 m up is 5.2 s

The correct answer is (b) the mass of the object is 20 kilograms. When an object is raised to a certain height, work is done on the object against the force of gravity, and the object gains potential energy.

When a 20 kilogram object is raised by 10 meters, it gains gravitational potential energy, which is given by the formula:

Potential energy = mgh

where m is the mass of the object, g is the acceleration due to gravity, and h is the height that the object is raised.

Substituting the given values, we get:

Potential energy = (20 kg) x (9.81 m/s^2) x (10 m) = 1962 J

This means that 1962 J of work was done on the object against the force of gravity to raise it to a height of 10 meters. The force of gravity on the object remains constant at 20 kg (mass) x 9.81 m/s^2 (acceleration due to gravity) = 196.2 N, regardless of its height.

Since the object is lifted vertically and is at rest at the top of its ascent, no work is done against horizontal forces. Therefore, the force of gravity on the object remains constant at 20 kg (mass) x 9.81 m/s^2 (acceleration due to gravity) = 196.2 N.

Thus, the correct statement is that the mass of the object is 20 kilograms.

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Answer:B

Explanation:

.03 of an hr is 2 mins and if it takes 2 mins to drive 4 miles enter it in pace calulator you are going 120mph so the closest to 120 is 133mph

The kid is breaking the speed limit of 45 miles/hr since he is going at 133.3 miles/hr.

Speed is the ratio of distance travelled to time taken. It is given by:

Speed = distance / time

Since the distance to the mall is 4 miles, the time taken is 0.03 hours, hence the speed is:

Speed = distance / time

Speed = 4 miles / 0.03 hours

Speed = 133.3 miles/hr

Hence the kid is breaking the speed limit of 45 miles/hr since he is going at 133.3 miles/hr.

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Answer:

The wavelength is 2 meters

Explanation:

The relationship between the frequency, the speed and the wavelength is given by the relation;

v = f × λ

The given parameters are;

The distance of the duck from the edge of the pond = 12 m

The number of ripples produced per second = Frequency, f = 2 Hz

The time it takes the ripple to reach the edge of the pond after travelling past the duck = 3 seconds

Therefore, speed of the wave, v = Distance/time = 12 m/(3 s) = 4 m/s

The wavelength, λ, is therefore;

λ = v/f = (4 m/s)/(2 Hz) = 2 meters.

The mass of the wheel is 400/3s² divided by the square of the radius.

Mass is a measure of the amount of matter or substance that an object contains. It is a fundamental physical quantity that is used to measure the amount of matter in a given object or system. It is measured in kilograms (kg) or grams (g). Mass is different from weight, which is a measure of the gravitational force between two objects.

At the start, all the energy is potential energy:
\(PE_{initial\) = mgh + Iω²/2
At the end, all the energy is kinetic energy:
\(KE_{final\) = mv²/2 + Iω²/2
Since the system is released from rest, we know that the initial angular velocity ω is 0, and the final velocity v is 10m/3s.
Setting the two equations equal to each other, and solving for I, we get:
I = 2mgh/v²
Plugging in m = 20kg, h = 10m, and v = 10m/3s, we get:
I = 200kg·m²/3s²
The moment of inertia of a wheel is given by I = (1/2)mr², so we can rearrange this equation to solve for the mass of the wheel:
m = 2I/r² = (400/3s²)/r²
Therefore, the mass of the wheel is 400/3s² divided by the square of the radius.

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As shown in the figure below, a squirrel is looking for nuts. It first runs rightward 3 m and runs leftwards another 10 m to a second nut, and then runs 3 m leftward to a third nut. The total time spent running was 12 s.

Answer:

What is the squirrel's average velocity to reach the third nut?

Answer: =-0.83  m/s

What is the squirrel's average speed to reach the third nut?

Answer: 1.3  m/s

It first runs rightward 3 m and runs leftwards another 10 m to a second nut, and then runs 3 m leftward to a third nut. The total time spent running was 12 s.

The average velocity required for squirrels is 0.83  m/s. The average speed required for squirrels is 1.3 m/s.

Speed, which is a scalar quantity, is the "speed at which an object is moving." The rate at which an object travels a distance can be thought of as its speed.

A fast-moving object travels at a high speed and completes a significant distance in a brief period of time. This is in contrast to an object travelling slowly, which travels a relatively short distance in the same length of time.

Therefore,  It first runs rightward 3 m and runs leftwards another 10 m to a second nut, and then runs 3 m leftward to a third nut. The total time spent running was 12 s.

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The Acceleration of the system is 6.41 m/s².

Given,

α= 15°, m₁ = 7kg

β= 65°, m₂ = 11 kg

Let, a be the acceleration and T is the tensions at the end it's the cord.

Let, the mass m₂ be coming down along the inclined plane along the inclined surface towards downward m₂g sin β and the tension in the upward direction,

Resultant force, m₂a=m₂g sin β -T

11a=((11) ×g sin 65°) -T  ...(i)

Now, considering the motion of m₁ which moves downwards, the forces are m₁g sinα, and T both are acting downwards.

Resultant force m₁a = m₁g sin α+T

7a =7g sin 15°+T  ...(ii)

Solving both the equations by adding them,

18a=11gsin 65°+7g sin 15°-T+T

18a=11gsin 65°+7g sin 15°=115.45

a=115.45/18=6.41 m/s²

Hence, the Acceleration of the system is 6.41 m/s².

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Given, radius of hollow metal sphere, r = 12.62 cmCharge on hollow metal sphere, q = 1.58 μC = 1.58 × 10⁻⁶ CWe need to find out the electric field strength E at the surface of the hollow metal sphere.

Using Gauss's law, the electric field outside a charged hollow sphere is same as that due to point charge placed at center of sphere and is given asE = kq / r²Where,E = Electric field strengthk = Coulomb's constant = 9 × 10^9 Nm^2C^-2q = Charge on sphere at center of the spherer = Radius of the hollow metal sphere

Therefore, electric field strength at the surface of hollow metal sphere isE = (9 × 10^9 × 1.58 × 10⁻⁶) / (12.62 × 10⁻²)²= 141628.7 N/C≈ 1.4 × 10⁵ N/CTherefore, the main answer is the electric field strength, E, in N/C on the surface of the hollow metal sphere is approximately 1.4 × 10⁵ N/C.

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There are 188,487.68 lbs of dry soil in the top 6 inches of an acre of this soil.

To calculate the pounds of dry soil in the top 6 inches of an acre of this soil, we can use the following steps:

1. Convert the bulk density of the soil from g/cm3 to lbs/ft3: 1.38 g/cm3 * (454 g / 1 lb) * (1 ft / 30.48 cm)3 = 86.56 lbs/ft3

2. Convert the depth of the soil from inches to feet:

6 inches * (1 ft / 12 inches) = 0.5 ft

3. Calculate the volume of the soil in the top 6 inches of an acre:

0.5 ft * 1 acre * (4,3560 ft2 / 1 acre) = 2,178 ft3

4. Calculate the pounds of dry soil in the top 6 inches of an acre: 86.56 lbs/ft3 * 2,178 ft3 = 188,487.68 lbs

Therefore, there are 188,487.68 lbs of dry soil in the top 6 inches of an acre of this soil.

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Answer:

Explanation:

When a player throws a football , he applies force on the ball , due to which ball accelerates in forward direction . This is the action force .

The ball also applies a force on the hand of the player . Due to it the player experiences a pushing force in backward direction . This is reaction force .

Due to this force , the player does not move in backward direction because of frictional force of the ground . The frictional force keeps him stationary .

The gravitational force of attraction between the Earth and Jupiter is approximately 1.32 x 10²⁸ N.

The gravitational force of attraction between two objects can be calculated using Newton's law of universal gravitation, which states that the force (F) is proportional to the product of their masses (m₁ and m₂) and inversely proportional to the square of the distance (r) between their centers. Mathematically, the formula is expressed as:

F = (G * m₁ * m₂) / r²

where G is the gravitational constant.

m₁ = 6 x 10²⁴ kg (mass of Earth)

m₂ = 1898.6 x 10²⁴ kg (mass of Jupiter)

r = 5.88 x 10¹¹ m (distance between Earth and Jupiter)

Plugging in the values into the formula, we have:

F = (6.67 x 10⁻¹¹ N m²/kg²) * (6 x 10²⁴ kg) * (1898.6 x 10²⁴ kg) / (5.88 x 10¹¹ m)²

Calculating the expression, we find:

F ≈ 1.32 x 10²⁸ N

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THE COMPLETE QUESTION IS:

Determine the gravitational force of attraction between the Earth and Jupiter given the mass of the earth is 6 x 10²⁴ kg the mass of Jupiter is 1898.6 x 10²⁴ kg and the closest distance is about 5.88 x 10¹¹

Answer:

C yes susialoas

Explanation:

Yes they c is bkookkkakaksk

The total side to side distance at the top of the building, covered during such an oscillation is 8.4 cm.

Solution:

The height of building is, h = 152 m.

The frequency on windy days is, f = 0.17 Hz.

The acceleration on the top of building is, a = 2/100g (Here g is gravitational acceleration).

\(a = A \times \omega ^{2}\)

\(a = A \times (2\pi f) ^{2}\)

\(\frac{2}{100} \times g = A \times (2\pi \times 0.17) ^ 2\)

A = 0.042m

hence the total distance is twice the distance

that is 0.084m

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Question:

The New England Merchants Bank Building in Boston is 152 m high. On windy days it sways with a frequency of 0.17 Hz, and the acceleration of the top of the building can reach 2.0% of the free-fall acceleration, enough to cause discomfort for occupants. What is the total distance, side to side, that the top of the building moves during such an oscillation?

This means that the roller coaster is decelerating at a rate of 8m/s² until it comes to a complete stop.

Decelerating is the process of slowing down or decreasing the speed of a vehicle, person, or object. It is the opposite of accelerating, which is the process of increasing speed. Deceleration can be caused by the force of friction from the road or other surfaces, or by reducing the amount of engine power or braking. Deceleration is necessary to safely slow down and stop a vehicle and to negotiate turns or curves in the road.

The acceleration of the roller coaster can be calculated using the equation
a = (Vf - Vi)/t, where Vf is the final velocity, Vi is the initial velocity, and t is the time taken for the change in velocity to occur.
In this case, Vf = 0m/hr, Vi = 80m/hr, and t = 10s.
Therefore, the acceleration of the roller coaster is -8m/s².
This means that the roller coaster is decelerating at a rate of 8m/s² until it comes to a complete stop.

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Answer:

B

Explanation:

The charge contained in a section of the line of length 2.50 cm is 8.87 × 10⁻¹⁰ C.

The formula for electric field intensity of a line charge is given by:E= λ/2πε₀rwhere,λ is the linear charge density of the line.ε₀ is the permittivity of free space.r is the perpendicular distance of the point from the line charge.

Electric field intensity, E = 810 N/CandDistance, r = 0.385 mUsing the above formula, we can find the value of linear charge density of the line.λ = 2πε₀Erλ = 2 × π × 8.85 × 10⁻¹² × 810 × 0.385λ = 3.55 × 10⁻⁸ C/mLength of the section of the line, L = 2.5 cm = 0.025 mWe need to find the charge present in a section of the line of length 2.50 cm.Since the linear charge density of the line is 3.55 × 10⁻⁸ C/m,Charge in a section of the line of length 0.025 m = λLq = λLq = 3.55 × 10⁻⁸ × 0.025q = 8.87 × 10⁻¹⁰ C

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There are 4 potential models of how the expansion of the universe changes with time. The correct model description to fill in the blanks is as follows:

Since the beginning of the Big Bang, scientists believe the universe always expands. Every element of a galaxy slowly moves away from each other. There are 4 potential models for how the universe changes with time, which:

This question is incomplete. The complete query to this question is as follows:

Meanwhile, the blank sentences are as follows:

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Answer:

two protons and two neutrons

it's the answer. hope it helps

Alpha particles have two protons and two neutrons. Therefore, option (D) is correct.

Alpha particles can be defined as positively charged particles released from the decay of several radioactive materials. The mass of the Alpha particle is because of the presence of two protons and two neutrons. Therefore, the Alpha particles nucleus is very similar to the nucleus of the Helium atom and are denoted by the Greek alphabet α.

An alpha particle or ray is also known as doubly ionized helium nuclei (He²⁺). The alpha particle's mass is equal to 6.64 × 10⁻²⁷ Kg. Alpha particles are generally generated during the standard radioactive decay of atomic nuclei.

Alpha particles contains the kinetic energy of 5MeV and a speed of 5 % of that of the speed of light. They are also formed in high-energy particle accelerators and are highly ionized particles with low penetration depth compared to other particles.

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The Labels for the tectonic plates are;

1. Juan de Fuca  2. Rivera  3. Cocos  4. Caribbean  5. North Andean 6. Panama 7.   8. Easter 9. Juan Fernández 10. Scotia 11. South Shetland 12.  South Sandwich 13. Aegean 14. Anatolian 15. Indian 16. Burmese 17. Amur 18. Okhotsk 19. Yangtze 20 Philippine 21. Mariana 22. Okinawa 23. North Bismarck 24.  Molucca 25.  Banda 26.  Timor 27. Bird's Head 28. Woodlark 29. South Bismarck 30. New Hebrides 31. Balmoral Reef  32. Conway Reef

Tectonic plates are large, solid pieces of Earth's outermost layer, that move and interact with each other. These plates can be oceanic or continental.

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Answers:

(a) a = -90 m/s² or 9.18g

(b) t = 0.00667 s

(c) a = -40 m/s² or 4.08g

Explanation:

When the acceleration is constant, we can use the following equation:

Where x is the distance, v0 is the initial velocity, vf is the final velocity and t is the time. So, replacing x by 2 mm (0.002 m), v0 by 0.6 m/s, and vf by 0 m/s, we can solve for t as:

Therefore, the stopping time is 0.00667 s.

With this time we can calculate the acceleration using the following equation:

Then, to know the acceleration as a multiple of g, we need to divide 90 m/s² by 9.8 m/s² to get:

So, 90 m/s² is equivalent to 9.18g

In the same way, we can calculate the acceleration when the distance is 4.5 mm (0.0045 m). So, the stopping time is equal to:

Then, the acceleration is equal to:

Since 40/9.8 = 4.08g, we can say that -40m/s² is equivalent to 4.08g.

Answer:

17 * 10^5 J

Explanation:

From;

H= mcΘ

where;

m = mass of water = 5.0 Kg

c = heat capacity of water = 4 200 J/Kg °C

Θ = temperature rise = 100 °C - 20 °C = 80°C

Substituting values;

H = 5 * 4 200 * 80

H = 17 * 10^5 J

Deleted this answer, sorry for any inconveniences that it may have caused.

Answer:

Periods indicate that a new period at a new principal energy level which is filled with electrons. Groups indicate that the elements share similar properties because their shells are filled with the same number of valence electons.

Explanation:

e see that starting at period 2 Li has a  +1 charge , He has +2 charge, B has +3 charge, C has the potential to have a +4 charge or -4 charge (because it can gain or loose electrons) and N has a -3 charge, etc. Groups however, have similar properties and every element in a 1A - 8A has the same number of valence electrons. All except the noble gases in which He only needs 2 electrons to be in a perfect state. This is its octet as it would be a completely different element if it had more than 2 electrons in its shell. An example of the groups sharing similar properties is if we were to look at group 1A. In group 1A we find H, Na, K, etc. These are all highly unstable elements when alone (not in a compound) and they are very reactive. If you were to put Na for instance in water, it would light up and you'd see a flame sitting on top of the water. A scientist could do that with the rest of the elements in the group and they would see this increasing in reactivity as you go down the periods. Francium isn't visible long enough to be able to see this happen though. It's more of that kind of element that scientists prove that it exists, but not a very common element to get to learn much about.