A physics text has 544 sheets (1088 pages) and is 34.3 millimeters thick between the inside front cover and the inside back cover. what is the thickness of a single sheet?

answer: the third one

Answer:

F_B = 0.12N

Explanation:

In order to calculate the magnetic force on the charge, you use the following formula:

\(\vec{F_B}=q\vec{v}\ X\ \vec{B}\)          (1)

q: charge of the particle = 4μC = 4*10^-6 C

v: speed of the charge = 7.5*10^4 m/s

B: magnitude of the magnetic field = 0.4T

The direction of the motion of the charge is perpendicular to the direction of the magnetic field. Then, the magnitude of the magnetic force is:

\(F_B=qvBsin90\°\\\\F_B=(4*10^{-6}C)(7.5*10^4 m/s)(0.4T)=0.12N\)

The magnetic force on the charge is 0.12N

If one oscillation has 5.8 times the energy of the second one of equal frequency and mass, 2.4:1 is the ratio of their amplitudes.

Oscillation is defined as the process of repeating fluctuations of a quantity or measure around its time equilibrium value. Oscillation can also be defined as the periodic fluctuation of matter between two values ​​or about their average.

The definition of happiness is someone or something that makes you feel great joy or pleasure. An example of good luck is someone who wins the lottery. An example of happiness is a laughing baby. Besides making you feel better, positive emotions are good for your brain and body. It lowers stress hormones, relieves anxiety and depression, and strengthens the immune system. Feeling positive emotions every day has a huge impact on our well-being and health.

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Law of attraction and Law of radius does not come in Kelper's law.

In astronomy, Kepler's legal guidelines of planetary movement, published via Johannes Kepler between 1609 and 1619, describe the orbits of planets across the solar. The laws changed the heliocentric theory of Nicolaus Copernicus, changing its circular orbits and epicycles with elliptical trajectories, and explaining how planetary velocities vary.

The elliptical orbits of planets were indicated through calculations of the orbit of Mars. From this, Kepler inferred that different our bodies within the solar device, including those farther far from the sun, additionally have elliptical orbits, the 2nd one law allows to set up that when a planet is toward the solar, it travels faster. The 3rd law expresses that the farther a planet is from the sun, the slower its orbital pace, and vice versa.

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Answer:

Aesthetic sports

Explanation:

Aesthetic sports are the one's that need well-developed physical qualities such as strength, agility, stamina, flexibility, and technical knowledge and artistry, in addition to technical ability and artistry. Elite athletes in these sports generally have a low abdominal fat , and the ranking is subjective.

In aesthetic sports like gymnastics, swimming, and figure skaters, dynamic and proactive flexibility is required.

The distance from the wall is 17 m when a bat flying in a cave emits a sound and receives its echo 0.1 s later.

Given sound wave velocity (s) = 340m/s

Time taken for the sound wave (echo) to travel towards the wall and reflect off the bat = 0.1 s

So the time taken by the sound wave to travel to the wall only (t) = 0.1s/2 = 0.05s

Distance from wall to bat (d) = speed of sound wave(s) * time(t)

The distance between the wall and the bat is = 340 m/s * 0.05 s = 17 m

Thus, the distance from the wall when a bat emits a sound and receives its echo 0.1 s later in a cave is 17 m.

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Neutrinos are the most difficult to detect among the given items while Infrared photos are the easiest to detect.

The increasing difficulty of detection of the following items are as follows:-

Infrared photo (Easy to detect)-Granity waves-Neutrinos (Difficult to detect)Particles or waves are hard to detect, particularly when they have very little mass and do not carry an electric charge or magnetic field that can be detected. Neutrinos, for example, are almost undetectable because they have no electrical charge and only interact with other matter via the weak nuclear force, which is far weaker than electromagnetism.

The building effective detectors for particles or waves that scientists would like to study is a real challenge.

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Answer:

Three states of matter exist—solid, liquid, and gas. Solids have a definite shape and volume. Liquids have a definite volume,

Explanation:

According to the information, the table is completed as follows: Do they have definite shape? no (vapor), no (water), yes (ice); Do they have definite volume? no (vapor), yes (water), yes (ice); Do they compress? yes (vapor), no (water), no (ice).

To fill the table to describe the characteristics of the states of matter we have to look for additional information of each state of matter and then complete the table. According to the information we can infer that the correct way to complete the table is:

Do they have definite shape? no (vapor), no (water), yes (ice); Do they have definite volume? no (vapor), yes (water), yes (ice); Do they compress? yes (vapor), no (water), no (ice).

Vapor | No | No | Yes

Water | No | Yes | No

Ice | Yes | Yes | No

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Given 16 kg of a radioactive sample with a certain half-life of 15 years:

To determine how much of the 16 kg radioactive sample is left after 60 years with a half-life of 15 years, we will use the following steps:

1. Calculate the number of half-lives that have passed: 60 years / 15 years per half-life = 4 half-lives
2. Calculate the remaining sample amount using the formula: remaining amount = initial amount * (1/2)^number of half-lives
3. Apply the formula: remaining amount = 16 kg * (1/2)^4 = 16 kg * 1/16 = 1 kg

After 60 years, 1 kg of the radioactive sample is left. The correct answer is D. 1kg.

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Exaggerated feelings of self-importance are most closely linked with narcissism. Narcissism is a personality trait characterized by an inflated sense of self-worth, an excessive need for admiration, and a lack of empathy towards others.

Individuals with narcissistic traits often believe they are superior to others, crave attention and validation, and have a grandiose self-image.

They may engage in self-promotion, seek constant admiration, and exploit others for personal gain. Narcissism is associated with a sense of entitlement, a tendency to manipulate and exploit others, and a lack of empathy or concern for the well-being of others.

While a certain level of self-confidence and self-esteem is healthy, excessive narcissism can negatively impact relationships, lead to interpersonal conflicts, and hinder personal growth and development.

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Answer:

No change.

Explanation:

In isothermal process, ∆T = 0.

Therefore, ∆U =0

Hence, there is no change in internal energy.

Answer:

320

Explanation:

Group R1 and R2

Then group R1'2 with R3

Explaination :

Here the given circuit is both in series and parallel. So we would be first calculating the total resistance in series.

Rs = R1 + R2 .... n

Rs = 100Ω + 220Ω

Rs = 320Ω

Therefore, resistance in series combination is of 320Ω.

Now, the circuit would be combined in parallel.

As we know that,

>> 1/Rp = 1/320 + 1/320

>> 1/Rp = 1 + 1 / 320

>> 1/Rp = 2 / 320

>> 1/Rp = 1 / 160

Cross multiplying them,

>> Rp = 160Ω

Therefore,

Answer:

An isolated system is a single object that doesn't interact with any other objects. An isolated system has constantly changing energy. As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more.

Explanation:

An isolated system is a system in which the mass and energy are not allowed to escape.In open system, energy and mass can transfer and in closed system, only energy can transfer but the mass is conserved.

For an isolated system, the statement "total energy and mass are conserved" should be correct.

Therefore, for an isolated system, the statement "total energy and mass are conserved" should be correct.

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Explanation:

Veins carry deoxygenated blood from different parts of the body to our heart. ... Since a larger volume of blood is collected in the right auricle than that of the left auricle, right auricle is larger than the left auricle.

Answer:

kinetic and I think sound energy

Answer:

kinetic energy

Explanation:

An apple falling to the ground has both potential energy and kinetic energy. As the apple falls, its potential energy is converted into kinetic energy, which is the energy an object has due to its motion. The apple gains kinetic energy as it falls and its velocity increases, and at the moment it reaches the ground, all of its potential energy has been converted into kinetic energy.


ALLEN

Answer:3.5 seconds

Explanation:

Newton's law of universal gravitation doesn't say anything about the cause of gravity.

Einstein's theory of relativity does.

The first: 1,026m

The second: decreases

The third: 7.9 mya

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This is not a gamma radiation because there is a change in the atomic number of the daughter nucleus. It is rather a beta decay.

We have to note that when we talk about a decay we are talking about the manner that we can be able to break up the atom of a radioactive substance so that we can be able to produce a new substance.

We can see now that what we have here is the loss of a beta ray or an electron from the specie that is shown. This is evidenced by the change in the atomic number of the daughters nucleus.

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The barometer reading at the top of the mountain is  98,737.6 Pa.

The barometer reading at the top of the mountain is calculated as follows;

Atmospheric pressure at base = ρgh

= 1.25 kg/m³ x 9.81 m/s² x 0.74 m

= 9.1 Pa

Pressure due to mercury column at base;

= 13,600 kg/m³ x 9.81 m/s² x 0.74 m

= 98,727.8 Pa

Total pressure at base = Atmospheric pressure + Pressure due to mercury column

= 9.1 Pa + 98,727.8 Pa

= 98,736.8 Pa

The total pressure at the top of the mountain can be calculated as follows;

Total pressure at top = Pressure due to mercury column + ρgh

98,736.8 Pa  = 101,325 Pa   + 1.25 kg/m³ x 9.81 m/s² x h

98,736.8 Pa = 101,325 Pa  + 12.263h

12.263h = -2,588.2

h = -211 m

Barometer reading at top;

= 101,325 Pa + 1.25 kg/m³ x 9.81 m/s² x (-211 m)

= 98,737.6 Pa

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Option B.  The temperature change for Cu will be 10-fold higher than that for water. Is true bout the change in temperature.

Heat capacity or thermal capability is a physical property relying on, described as the amount of heat to be provided to an object to produce a unit trade in its temperature. The SI unit of heat ability is joule in line with kelvin. warmth capability is an extensive belonging.

Heat capacity or specific warmth is the quantity of warmth in step with unit mass that is required to raise the temperature through 1°C. particular heat is helpful in determining the processing temperatures and quantity of warmth necessary for processing and can be useful in differentiating among polymeric composites.

The Specific heat ability of a substance is usually determined consistent with the definition; namely, by means of measuring the heating capacity of a sample of the substance, generally with a calorimeter, and dividing via the pattern's mass .

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Disclaimer:- your question is incomplete, please see below for the complete question.

Water has a heat capacity that is approximately ten times larger than the heat capacity of copper metal. Assuming 100 j of energy is deposited into equal masses of the two materials as heat energy, what is true about the change in temperature?.

A. The answer cannot be determined without knowing the actual masses of the two materials.

B. The temperature change for Cu will be 10-fold higher than that for water.

C. The temperature change for water will be 10-fold higher than that for Cu.

D. The temperature changes will be the same since each receives the same amount of heat.

E. The answer cannot be determined without knowing the initial temperatures of the two materials.

Space probes are unmanned spacecraft that are designed to explore the solar system and beyond. They are equipped with advanced technologies and scientific instruments that help in navigation and space exploration. Here are some ways that space probes are useful:

Mapping and Navigation: Space probes help to map and navigate the solar system. They collect data on the location, size, and movement of planets, moons, asteroids, and other celestial bodies. This information is used to help spacecraft navigate and avoid obstacles during missions.

Studying Planets and Moons: Space probes can land on and study planets and moons in the solar system. They collect data on the composition, temperature, and atmosphere of these bodies. This information is used to learn about the origins and evolution of the solar system.

Searching for Signs of Life: Space probes are used to search for signs of life on other planets and moons. They look for evidence of water, organic compounds, and other indicators that life may exist or have existed in the past.

Collecting Samples: Some space probes are designed to collect samples of rocks, soil, and other materials from other planets and moons. These samples can be studied to learn more about the composition and history of the solar system.

Communication: Space probes are equipped with antennas that allow them to communicate with Earth. They send back data and images that are used by scientists to learn more about the solar system.

Overall, space probes are important tools for navigation and space exploration. They help us learn more about the solar system and the universe beyond.

The power of the engine in kilowatts which pulls a train of mass 600 tonnes up an incline of 1 in 100 at the rate of 60km/he is: 13,450 kW.

To solve this problem, we need to use the equation for power:

Power = force x velocity

First, we need to calculate the force required to pull the train up the incline. This force can be calculated as the sum of the force required to overcome the force of gravity and the force of friction.

Force = (mass of train + mass of engine) x (sinθ + friction coefficient x cosθ)

where:

   mass of train = 600 tonnes

   mass of engine = 200 tonnes

   θ = angle of incline = arctan(1/100)

   friction coefficient = 50 N/tonne

Plugging in the values, we get:

θ = 0.57 degrees

Force = (600 + 200) x (sin(0.57) + 50/1000 x cos(0.57))

= 807.33 tonnes

Next, we need to convert the velocity from km/h to m/s:

60 km/h = 16.67 m/s

Finally, we can calculate the power:

Power = Force x Velocity / 1000

= 807.33 x 16.67 / 1000

= 13.45 MW

Converting to kilowatts, we get:

Power = 13.45 MW = 13,450 kW

Therefore, the power of the engine is 13,450 kW.

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The source of nutrition that Andrew should consume prior to the match to get the boost of energy he desires is carbohydrate.

Nutrition refers to the organic process by which an organism assimilates food and uses it for growth and maintenance.

There are 6 major classes of nutrients and they are as follows:

Among these classes of nutrients, carbohydrates provide the fastest source of energy in the body and hence, can be recommended for an athlete like Andrew who is preparing for a weight lifting endeavor.

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Solution: given that; velocity (v)=60km/hr, distance (d)=500km, time (t)=? From velocity=distance/time....... :. 60=500/t, cross-multiply..... 60t=500, divide both sides by 60...... 60t/60=500/60, t=500/60, t=8.33~. Therefore the bus took 8hours, 33 minutes to cover the distance of 500km.

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Answer:What' the question?

Explanation:

Answer:

Explanation:

Your answer is correct

Answer: 3

Explanation:

Answer:

150J

Explanation:

Formula : Work done

Force x distance

work done = force x distance

Distance should be measured in meters

300÷100=3m

work done = 450 x 3

=150J

Answer:

10.466

Explanation:

I used pythagorean theorem. It is A^2 + B^2 = C^2 then square root of C^2 to find C which was 10.466.

Explanation:

The runner was 8.6km away from the finish line when the bird starts flying.

Therefore it takes the bird 8.6/14.4 = 0.60 hours for the bird to fly to the finish line.

In that 0.60 hours, the runner would have ran an extra 3.6km/h * 0.6h = 2.16km.

Now, the runner and the bird are flying towards each other. The distance between them is 8.6 - 2.16 = 6.44km and their combined speed is 18.0km.

Hence, they will meet in 6.44/18.0 = 0.36 hours.

Overall, the bird flew for 0.60 + 0.36 = 0.96 hours, and flew 14.4km/h * 0.96h = 13.8km.