A high-voltage transmission line is made of bare wire; it is not insulated. Assume that the wire is 100 km long, has a resistance of 7.0 ohm, and carries 200 A. A bird is perched on the wire with its feet 2.0 cm apart. What is the potential difference between its feet?

No, the second charged object (q2) is not necessarily exerting the same

on q1 as the charged object (q1) is exerting on q2.

According to Coulomb's law, the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Therefore, the magnitude of the force between q1 and q2 will be the same, but the direction of the force on each object will be opposite. This is because the force is a vector quantity and its direction depends on the direction of the electric field created by the other charged object. So, while q1 exerts a force on q2, q2 will exert an equal and opposite force on q1.

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Yes,  the second charged object (q2) is exerting the same because of  Newton's third law of motion which says that for every action, there is an equal and opposite reaction.

We remember that Coulomb's law states that  the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

We then can say that the magnitude of the force between q1 and q2 will be the same, but the direction of the force on each object will be opposite.

This is so because the force is a vector quantity and the direction of the electric field the other charged object produces determines the direction of the force.

As a result, while q1 exerts a force on q2, q2 will do the same to q1.

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Answer:

the answer is C

Explanation:

we know this because if you compare the graphs and look at the direction. it isn't always in the explanation or the few sentences they gave you at the top. also, look at the waves, you can see in Davids drawing that it is directly straight up, A and B do not represent that. A isn't even a valid answer. Notice also in A that the arrow is going in the completely different direction than in Davids drawing. B is also going a different direction even though it is only turned a little bit although if it was straight up like Davids drawing then it would most likely be a correct answer. C does have one arrow going a different direction but look at how it has two, showing in which if the waves were to turn then the arrow is still valid

The way to make 3d soft body objects interact pressing against the surface of each other increase friction is given below

The way to make 3d soft body objects interact pressing against the surface of each other increase friction is by:

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Answer:

They have holes that are positively charged

Explanation:

There are two types of semiconductors i.e. p-type and n-type.

p-type is a type of semiconductor that is formed when a trivalent impurity is added to an intrinsic semiconductor like silicon or germanium. Boron (B), Gallium (Ga), Indium(In), Aluminium(Al) etc are trivalent impurities. Due to this combination, a large number of holes are created in it.

Hence, p-types of semiconductors have holes that are positively charged.

The positive velocity at 0.0 s on the graph is equal to the mass moving upward and at the origin in 0.0 s.

Velocity is a vector quantity that has both magnitude and direction. Velocity ​​can be positive and negative. Velocity is positive if the direction of motion is up and negative if the direction of motion is down.

On a speed-time graph, a horizontal (flat) line indicates that the object is moving at a constant speed. The diagonal straight line shows the speed of the object changes.

This question is an of choice

The mass moves down and at the origin at 0.0 s.

The mass moves up and at the origin at 0.0 s.

The mass moves upward but not at the origin in 0.0 s.

The mass moves down but not at the origin in 0.0 s.

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Answer:

acceleration

sorry i answered late

The power generated by the car while accelerating from rest to a speed of 37 m/s in 5 seconds is 78306 W.

Power = Work done / time

work done = kinetic energy = 1/2 *m*v²

In which,

mass m =  572 kg

velocity v = 37 m/s

Work done =  1/2 *572*37²

Work done = 391534 Joules

Power = 391534 / 5

Power = 78306.8 J/sec

Power = 78306 W

Thus, the power generated by the car while accelerating from rest to a speed of 37 m/s in 5 seconds is 78306 W.

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Answer:

to transfer the voltage

Explanation:

The brushes make physical contact with the commutator. When a DC voltage is applied to the brushes, that voltage is transferred into the commutator which, in turn, powers the windings. This electrical input generates a magnetic field around the armature.

The first three overtones of a double reed instrument with a fundamental frequency of 118 Hz that is open at both ends are 236 Hz, 354 Hz, and 472 Hz.

The frequency of the first overtone is two times the frequency of the fundamental, which gives us 236 Hz 118 Hz x 2 = 236 Hz The frequency of the second overtone is three times the frequency of the fundamental, which gives us 354 Hz 118 Hz x 3 = 354 Hz. The frequency of the third overtone is four times the frequency of the fundamental, which gives us 472 Hz 118 Hz x 4 = 472 Hz.

The first three overtones of this double reed instrument are 236 Hz, 354 Hz, and 472 Hz. Explanation: An open-ended instrument has its overtones at integer multiples of the fundamental frequency. Determine the fundamental frequency: 118 Hz. Calculate the first overtone by multiplying the fundamental frequency by 2: 118 Hz x 2 = 236 Hz. Calculate the second overtone by multiplying the fundamental frequency by 3: 118 Hz x 3 = 354 Hz Calculate the third overtone by multiplying the fundamental frequency by 4: 118 Hz x 4 = 472 Hz.

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Explanation:

It is given that, a batter hits a pop-up to a fielder 93 m away, range of the projectile, R = 93 m

The ball remains in the air for 5.4 s, the time of flight is 5.4 s

Time of flight : \(T=\dfrac{2v\sin\theta}{g}\)

\(5.4=\dfrac{2v\sin\theta}{g}\\\\v\sin\theta=\dfrac{5.4\times 9.8}{2}\\\\v\sin\theta=26.46\)

Maximum height of the projectile : \(H=\dfrac{v^2\sin^2\theta}{2g}\)

We need to find H.

So,

\(H=\dfrac{(v\sin\theta)^2}{2g}\\\\H=\dfrac{(26.46)^2}{2\times 9.8}\\\\H=35.72\ m\)

So, it will rise to a height of 35.72 m.

Race takes 14 seconds to complete.

We need to use the equation of motion:

d = vt

where d is the distance covered, v is the speed, and t is the time.

Let's assume that the hare covers a distance of x before it stops to rest, and the tortoise covers a distance of y in the same time. Since the hare is faster, it covers more distance than the tortoise before stopping to rest, so we can write:

\(x = 3.0 m/s * t\)

\(y = 0.15 m/s * t\)

After resting for 2.0 minutes or 120 seconds, the same as the distance the tortoise has to cover to win the race. Let's call this distance z.

We can write:

\(z = x - 0.35 m\)

\(z = y\)

\(3.0 m/s * t - 0.35 m = 0.15 m/s * t\)

Solving for t, we get:

\(t = 14 s\)

Therefore, the race takes 14 seconds to complete.

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Answer:

a c d

Explanation:

yeet

Answer:

a c d

Explanation:

Answer:

12mph in 2hrs and 3mph in 0.5hrs the total distance would be 12*2 and 3*0.5 which would be 24 and 1.5 so we add those 24+1.5= 25.5. The answer would be 25.5

The force of gravity will become one fourth of the original force when the masses of the objects remain the same but their distance of separation doubles.

Force of gravity is an attraction force which holds the object towards the ground surface.

The gravitational force depends directly on the masses of two objects and indirectly on the square of the distance between them.

Let

m₁ and m₂ be the two different masses

r₁ be the initial distance between the the two masses

r₂ be the distance when their separation doubles.

i.e. r₂ = 2r₁

So, according to the formula,

F₁ =   \(\frac{Gm1m2}{r1^{2} }\)

F₂ =   \(\frac{Gm1m2}{r2^{2} }\)

since masses are same:

\(\frac{F1}{F2} = \frac{r2^{2} }{r1^{2} }\)

\(\frac{F1}{F2} = \frac{4r1}{r1}\)

F₁ = 4F₂

F₂ = \(\frac{1}{4}\)F₁

The resultant force is one fourth of the original force.

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Answer:

A. −1.11 m/s2

Explanation:

To calculate the object's acceleration, we can say:

acceleration = (final velocity - initial velocity) / time

The object's initial velocity is 120 m/s, its final velocity is 20 m/s, and the time it takes to travel the 2,500-meter path is 1.5 minutes, or 90 seconds (1.5 x 60 = 90).

Therefore:

acceleration = (20 m/s - 120 m/s) / 90 s = -1.11 m/s^2

Note

The negative sign, means the object is decelerating and not accelerating because the object is slowing down during the trip.

it is decreasing its speed as it travels, so it's slowing down over time. The absolute value of -1.11 is also called deceleration.#SPJ4

Following the image of the ball that have been shown;

1. Potential energy

2. Kinetic energy

3. Kinetic energy

4. Potential energy

5. Kinetic energy

6. Kinetic energy

7. Kinetic energy

Due to its position or elevation, an object has potential energy while it is at rest or is elevated above the ground. Depending on the circumstances, this potential energy may either be elastic or gravitational.

Kinetic energy, or the energy connected to motion, is present when an item is in motion. An object's kinetic energy is determined by its mass and velocity .

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Answer:

1: Potential and kinetic

2: Potential and kinetic

3: Potential and kinetic

4: potential

5: Potential and kinetic

6: Potential and kinetic

7: NEITHER

Explanation:

4 is potential because its the highest point

7 is neither because the question states "the image shows the path of a ball from the time it's thrown to the time it lands on the ground" so... 7 is when the ball has landed on the ground. therefore it has neither potential nor kinetic because it is resting.

Answer:

it may be because of the movement of the atoms. i believe that the heat of the warm water makes it move faster, thus making the object float due to upthrust, or air pressure

It is more difficult to start moving a heavy carton from rest than it is to keep pushing it with constant velocity because of static friction.

Static friction refers to the resistance encountered when attempting to initiate the movement of two objects that are in contact with each other but not currently in motion relative to each other. When an object is at rest, the force of static friction acts in the opposite direction to any force applied to it.

In this case, the force applied to the carton is the force needed to start moving it from rest. The force of static friction is greater than the force applied to the carton, making it difficult to start moving the carton from rest.

Once the carton is moving with constant velocity, the force of static friction is no longer acting on it. The only force acting on the carton is the force that is applied to keep it moving at a constant velocity. This force is equal to the force of kinetic friction which is less than the force of static friction.

To summarize, the initial effort required to overcome the static friction between a heavy carton and its resting position is greater compared to the continuous force needed to maintain its constant velocity. The force of static friction is greater than the force applied to the carton, making it difficult to start moving the carton from rest.

Once the carton is moving with constant velocity, the force of static friction is no longer acting on it, and the only force acting on the carton is the force that is applied to keep it moving at a constant velocity.

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Answer:

B:  Only the ball experiences no resistive force to its state of motion.

The answers are- (a) 2 soft drinks. (b) Uncertain. (c) Not necessarily.

(d) No bliss point. and, (e) Steeper indifference curves.

(a) If Elmo has 4 quarters and 2 dimes in his pockets, he can buy 2 soft drinks. Since each soft drink requires two quarters and a dime, having double the amount of each coin allows him to make two purchases.

(b) Elmo's preferences between dimes and quarters may or may not be convex. Convex preferences imply that as Elmo increases the quantity of one type of money (quarters or dimes), the marginal utility he derives from each additional unit of that money diminishes. If Elmo's preference for soft drinks is based solely on the ability to purchase them and not on any diminishing marginal utility of the coins themselves, then his preferences may not exhibit convexity.

(c) Elmo does not necessarily always prefer more of both kinds of money to less. Given the specific context of the Coke machine, Elmo's only concern is to have the exact change required to obtain a soft drink. As long as he has the necessary combination of two quarters and a dime, having additional coins does not increase his utility further.

(d) Elmo does not have a bliss point in this scenario. A bliss point refers to the combination of goods or factors that maximizes an individual's utility or satisfaction. Since Elmo's sole objective is to purchase soft drinks from the Coke machine, his utility is maximized when he has the exact change required (two quarters and a dime). Having more coins does not enhance his utility beyond being able to buy a single soft drink.

(e) If Elmo had arrived at the Coke machine on a Saturday, with the drugstore across the street open, his preferences would change. Instead of being limited to the specific combination of two quarters and a dime, he could now use any combination of quarters and dimes to purchase as much Coke as he wants at a price of 4 cents per ounce.

In this case, Elmo's indifference curves between quarters and dimes would exhibit a downward slope, indicating that he is willing to trade off some quantity of one coin for a corresponding increase in the other, while still maintaining the same level of utility. The indifference curves would be steeper than the ones in the previous scenario, as Elmo can now acquire more soft drinks by having a larger combination of quarters and dimes.

These new indifference curves reflect Elmo's preference for more quarters and dimes, as they enable him to buy more Coke at the drugstore. The curves demonstrate that Elmo is willing to sacrifice some quantity of quarters to obtain additional dimes or vice versa, as long as the overall combination allows him to maximize the quantity of Coke he can purchase.

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Suppose an alternating series with terms that are non increasing in magnitude converges to a value L Explain how to estimate the remainder that occurs when the series is terminated after n terms . Find the magnitude of the first neglected term and conclude that |R| 50.So option B is correct.

To estimate the remainder that occurs when an alternating series is terminated after n terms, you need to find the magnitude of the first neglected term, which is the term following the nth term.

In an alternating series with terms that are non increasing in magnitude, the remainder (R) is the difference between the exact sum of the series (L) and the sum of the first n terms (Sn).

To estimate the remainder, you want to find an upper bound for |R|, which means you want to find a value that is greater than or equal to |R|.

By observing that the terms are non increasing in magnitude, you can conclude that the first neglected term, |an+1|, is an upper bound for |R|. This is because all subsequent terms in the series will be smaller or equal in magnitude to |an+1|.

Therefore, to estimate the remainder, you choose option B. Find the magnitude of the first neglected term and conclude that |R| < |an+1|.

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Answer:6.4 meters eastward

Explanation: you’re displacement is supposed to be the distance of the initial position to the final position (where you started to where you finished) so that means you would have to subtract 9.2 by 2.8 to get 6.4, and because you subtracted from 9.2 the direction is eastward.

Hope I helped!

Answer:

It increases in depth, indicates the heat flowing from earths warm interior to its surface

(a) The horizontal and vertical components of the wallet's velocity is 45 m/s and 53 m/s respectively.

(b) The wallet had been falling for 0 seconds at the point in question.

(c) At the point in question, the wallet had traveled 0 meters horizontally and 0 meters vertically.

At the point in question, the horizontal component of the wallet's velocity is 45.0 m/s towards the east (or "to the right" from Superman's perspective) and the vertical component of the velocity is 53.0 m/s towards the south (or "downwards" from Superman's perspective).

Assuming that the wallet was initially at rest relative to Superman, and neglecting air resistance, we can use the fact that the vertical motion of the wallet is equivalent to that of an object in free fall.

Using the formula y = 1/2(g)t^2,

where;

we can solve for t to get:

t = √(2y/g)

t = √(2 x 0/9.8)

t = 0 seconds

c) Again neglecting air resistance, we can use the equations of motion for constant acceleration to determine the horizontal and vertical displacements of the wallet during the time it falls. Since the horizontal velocity of the wallet remains constant at 45.0 m/s, and the vertical acceleration is constant at -9.8 m/s^2, we can use the following formulas:

y = v0yt + 1/2(a) t^2

x = v0xt

where;

Substituting in the known values, we get:

y = 0 + 1/2(-9.8)(0)^2

y = 0 meters

x = 45.0 (0) = 0 meters

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Answer:

Fracturing can emit seismic waves through the ground.

Explanation:

I believe the answer is seismic, I've studied this before.

Answer:

Answer:

63.0 x (6.02 x 10^23) = 3.79 x 10^25 atoms of gold

Explanation:

There are 6.02 x 10^23 representative particles in a mole of any substance. Multiply it by the number of moles, and you will get the number of representative particles (atoms, molecules, formula units)

Answer:

John Dalton

Explanation:

Answer:

chemist John Dalton

Explanation:

:)

Answer:

Graphically the path of an object will be linear; it looks like a straight line when it is in uniform motion.