did theoretical and experimental values agree? if they did not agree, explain why. in newton second law atwoood lab

The magnitude of the displacement vector refers to the length or amount of the displacement vector. Displacement is the change in position of an object. Displacement is a vector quantity, which means it has both magnitude and direction. In this question, a figure skater is gliding along a circular path of radius 3.93 m.

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By supplying the fundamental knowledge required to create new instruments and techniques for medical use, physics enhances our quality of life

From can openers, light bulbs, and mobile phones to muscles, lungs, and brains; from paintings, piccolos, and pirouettes to cameras, vehicles, and cathedrals; from earthquakes, tsunamis, and storms to quarks, DNA, and black holes, physics aids us in understanding the workings of the world around us.

The science of physics is the most fundamental and has many applications in contemporary technology. Because it makes it possible for smartphones, computers, televisions, watches, and many other modern technologies to function automatically, physics is crucial to modern technology.

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Answer:

The energy goes from the ground state to the excited states above it.

The phenomenon that occurs when one wave overlaps and combines with another is Interference.

Wave optics is the branch of physics which deals with the study of optical phenomena like polarization, refraction, diffraction, interference, etc. Study of waves and wave characteristics.

Here,

Interference is the phenomenon of combining of waves when two or more waves superpose or overlaps to form a resultant which can have a higher, lower or the same amplitude as the combining waves.

Hence,

The phenomenon occurs when one wave overlaps and combines with another is Interference.

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Answer:

A. Heat flowing from cold to hot

Explanation:

The second law of thermodynamics speaks about entropy and directions of processes. These directions go only in one direction, just as time moves only in one direction, as we know it. It is impossible to see time moving forward in a different sense. In the same way, the processes associated with heat transfer, go in a single direction this direction is associated with bodies at different temperatures. Where heat is transferred from a higher temperature body to a lower temperature body.

Heat transfer processes from a cold body to a hot body, do not exist and can not be achieved in a natural way.

Answer:

C

Explanation:

Answer:

C that's 10N I think. not sure though

The kinetic energy of the flywheel after 1 minute of rotation, given that it has a mass of 50 and radius of 40 cm is 32.4 KJ (Option D)

We'll begin by obtaining the velocity of the flywheel. This is shown below:

v = at

v = 0.6 × 60

v = 36 m/s

Finally, we shall determine the kinetic energy of the flywheel. Details below:

KE = ½mv²

KE = ½ × 50 × 36²

KE = 25 × 1296

KE = 32400 J

Divide by 1000 to express in KJ

KE = 32400 / 1000

KE = 32.4 KJ

Thus, the kinetic energy is 32.4 KJ (Option D)

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The capacitance of the capacitor is 1.7 * 10^-4 F. The capacitance will increase when the voltage is increased.

If we hold the capacitance constant, a higher voltage applied to the capacitor will result in a greater amount of electrical charge stored on the capacitor. Conversely, if we hold the voltage constant, a capacitor with a higher capacitance will be able to store more electrical charge. In other words, the capacitance and the voltage are directly proportional to the amount of electrical charge that can be stored on a capacitor.

We know that;

q = CV

C = q/V

C =  0.0024 C/12 V

C = 1.7 * 10^-4 F

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The electric potential energy of the system depends on all three quantities listed: q, Q, and q's location relative to the group of charges.

The electric potential energy of the system is directly proportional to the magnitude of the charge q, so it depends on the value of q.

The electric potential energy of the system is directly proportional to the total charge Q of the group of source charges, so it depends on the value of Q.

The electric potential energy of the system depends on the location of the charge q relative to the group of source charges, because the electric potential energy is a function of the distance between q and the source charges. Specifically, the electric potential energy of the system will be higher when the distance between q and the source charges is smaller, and lower when the distance is larger.

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Answer:

D

Explanation:

yes. The shortest object is traveling the fastest.

No,their lengths be used to rank the objects according to their speeds. Because the length of the object is depended on the frame of reference of the observer. Option A is correct.

A frame of reference is a mathematical and physical coordinate system whose origin, direction, and scale are given by a collection of reference points.

Because the length of each item is determined by the observer's frame of reference, If an observer is stationary yet traveling at near light speed, he will feel length contraction.

Otherwise, the length of the items should not alter for everyday pace.A spectator sees four identical objects flying at almost the speed of light.

No,their lengths be used to rank the objects according to their speeds. Because the length of the object is depended on the frame of reference of the observer.

Hence,option A is correct.

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Given that the flower pot's height is 45 meters, the speed at which it will hit the ground is v = 29.69 m/s.

We are aware that kinetic energy is equivalent to KE=1/2mv2, where v is the pot's velocity.

Utilizing the law of conservation of energy, potential energy PE = mgh with v = 29.69 m/s and KE = PE 1/2mv2=mgh

V = 29.69 m/s is the speed at which the pot impacted the earth.

The definition of energy is the "capacity to accomplish work, which is the ability to apply a force producing the displacement of an item." Despite this unclear description, energy simply refers to the power that propels motion. There are two categories of energy: potential and actual.

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The magnitude of the magnification indicates the size change of the image relative to the object. In this case, the magnitude is 0.2, indicating that the image is one-fifth the size of the object.

To determine the magnification of a real image formed by a mirror, we can use the magnification formula:

Magnification (m) = - (Image distance) / (Object distance)

Given:

Image distance (di) = 10.0 cm

Object distance (do) = 50.0 cm

Substituting the given values into the formula, we have:

m = \(- (10.0 cm) / (50.0 cm)\)

Simplifying the equation, we find:

m = -0.2

The negative sign indicates that the real image formed by the mirror is inverted compared to the object.

Therefore, the magnification of the real image is -0.2.

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Answer:

No, because the electromagnetic force is responsible for generating visible light as well as radiation in other wavebands not detectable by the human eye.

plss mark me brainliest :)

Answer:

The electromagnetic force is responsible for generating visible light as well as radiation in other wavebands not detectable by the human eye. As electrons and protons fly around bumping into each other in a light source, the electromagnetic force produces photons of all wavelengths across the electromagnetic spectrum. No mechanism by which ELF-EMFs or radiofrequency radiation could cause cancer has been identified. Unlike high-energy (ionizing) radiation, EMFs in the non-ionizing part of the electromagnetic spectrum cannot damage DNA or cells directly. so no they are not technically capable of causing cancer.

Answer:

THIS is very important.

Explanation:

If the word "this" was never invented, people wouldn't have a way to tell another person what is directly in front of them.

BTW this is a joke.

Answer:

https://youtu.be/stW-C7F7QOg

An annotated bibliography is a list of citations to books, articles, and documents. Each citation is followed by a brief descriptive and evaluative paragraph, the annotation. The purpose of the annotation is to inform the reader of the relevance, accuracy, and quality of the sources cited.

The cue column is typically located on the left-hand side of the page and is used to jot down keywords or questions that serve as cues for recalling the main points of the lecture or reading. The note-taking area is located on the right-hand side of the page and is used to write down detailed notes about the lecture or reading.

The summary section is located at the bottom of the page and is used to summarize the key points of the notes. Overall, the Cornell method is an effective way to organize and retain information during lectures and readings.

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The total displacement of the car is 27.9 m.

The total displacement of the car is calculated by applying the following kinematic equation.

s = vt +  ¹/₂at²

where;

The total displacement of the car is calculated as;

s = ( 4.5 x 3.5 ) + ¹/₂(2.7)(3)²

s = 27.9 m

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A square flange plate is a metal plate with four projections or “flanges” extending outward from the plate’s edges.

The four projections create a square shape when viewed from the top. Depending on your needs and budget, these plates can be made from steel or aluminium.

Square flange plates are extremely adaptable and have a wide range of uses. By distributing weight uniformly throughout the structure, they support the beams and columns.

They can also be utilized in welding operations to join two pieces together without gaps or irregularities. Finally, they can offer structural support for surfaces like walls in building projects.

Therefore, A square flange plate is a metal plate with four projections or “flanges” extending outward from the plate’s edges.

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The specific heat capacity of silver is 0.235 J/g°C.

The theory used in this question is the specific heat capacity equation, which states that the amount of energy required to raise the temperature of an object is proportional to the mass, specific heat capacity, and change in temperature.

The equation is Q = mcΔT, where Q is the amount of energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

Explanations given below

Calculate the specific heat capacity of silver by dividing the energy absorbed (197.9 J) by the mass of the silver (55.0 g) and the temperature rise (15°C).

Divide 197.9 J by 825 g°C (55.0 g * 15°C).

             (197.9 J) / (55.0 g * 15°C) = 0.235 J/g°C

The result is 0.235 J/g°C, which is the specific heat capacity of silver.

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Answer:

become fully human is to let down the barriers, to open up. And to discover that every person is beautiful. Under all the jobs they're doing, their responsibilities, there is you.

Explanation:

So to be fully human is the development of the heart and the head, and then we can become one.

The answer for the experiment is obtained by the principle of Newton's law of cooling. The initial temperature of the Room is taken as 32°C.

The ice cubes are mixed with room-temperature water, the ice starts to melt and the water becomes cold. This is because the ice and water have two different temperatures and when they are mixed there is an exchange of heat is taken place. When the ice cubes mixed with water the room temperature is decreases from 32°C. After stirring the mixture because of the heat released, the temperature increases.

When the ice-water mixture is stirred, the heat energy is evolved which melts the ice in the mixture, and therefore the temperature increases gradually. And stirring of water for every 5 minutes leads ice cubes to melt completely to form water and the level of water increases in the final stage. This was given by Newton's law of cooling.

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This is 20 plus 6.5 squared, which equals.Nearly nine 478 is what this equates to.This system therefore has a 9.47 mechanical advantage.

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Answer: it would take 4 seconds

Explanation:

The magnitude of the charge is 0.82 * 10-7 C, that can be calculated using the formula for the same.

Electric charge is available in types, which we pick to name high-quality charge and bad charge. This is the importance of the pressure which every fee exerts on the opposite fee (recollect Newton's third law).

Let the charge on each of them be "Q"

Now, electrostatic force of attraction on each of them = (1/4πε)(Q2/0.022)

Also, this force is being acted on each of the spheres, hence,

(1/4πε)(Q2/0.022)  = M*a

9 * 109 * Q2 * 104 / 4 = 10-3 * 150

Q = 0.82 * 10-7 C

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Using the formula for the charge, it can be determined that the charge has a magnitude of 0.92 x \(10^{-7}\) C.

There are many kinds of electric charge, which we will refer to as good charge and poor charge. This highlights the significance of the pressure one fee puts on the opposite fee remember Newton's third law.

Let "Q" be the charge on each of them.

Currently, the electrostatic force of attraction between each of them is equal to (1/4)(Q2/0.022).

Additionally, each of the spheres is being affected by this force, so

(1/4πε)(Q2/0.022) = M*a

9 x 109 x Q2 x 104 / 4 = \(10^{-3}\) x130

Q = 0.92 x \(10^{-7}\) C

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To determine the magnitude of the lift force ⃗ and the force of air resistance ⃗ acting on the jet, we need to resolve the weight ⃗ and the forward thrust ⃗ into their horizontal and vertical components.

The weight ⃗ can be resolved into two components:

- the vertical component, Wsin(30°), acting downward

- the horizontal component, Wcos(30°), acting to the left

The forward thrust ⃗ can also be resolved into two components:

- the vertical component, Tsin(30°), acting upward

- the horizontal component, Tcos(30°), acting to the right

Since the jet is flying at a constant speed, the lift force ⃗ must be equal in magnitude to the weight component acting downward, Wsin(30°). Therefore, the magnitude of ⃗ is 86,500 Nsin(30°) = 43,250 N.

The force of air resistance ⃗ is equal in magnitude to the horizontal component of the weight, Wcos(30°), minus the horizontal component of the forward thrust, Tcos(30°). Therefore, the magnitude of ⃗ is (86,500 Ncos(30°)) - (103,000 Ncos(30°)) = -8,715 N, where the negative sign indicates that the force of air resistance is acting in the opposite direction to the motion of the jet.

Therefore, the magnitude of the lift force ⃗ is 43,250 N and the magnitude of the force of air resistance ⃗ is 8,715 N.

Answer:

Explanation: You're welcome ✓

The tension in the cable is 169.43 N and the vertical component of the force exerted by the hi.nge on the beam is 114.77 N.

Apply the principle of moment and calculate the tension in the cable;

Clockwise torque = TL sinθ

Anticlockwise torque = ¹/₂WL

TL sinθ  =  ¹/₂WL

T sinθ  =  ¹/₂W

T = (W)/(2 sinθ)

T = (29 x 9.8)/(2 x sin57)

T = 169.43 N

T + F = W

F = W - T

F = (9.8 x 29) - 169.43

F = 114.77 N

Thus, the tension in the cable is 169.43 N and the vertical component of the force exerted by the hi.nge on the beam is 114.77 N.

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Answer:

  D.  The current is the same across all resistors in the circuit.

Explanation:

In a series circuit, all circuit elements are connected so that there is exactly one current path. That path goes through each of the elements of the circuit.

The current is the same through all resistors in a series circuit.