There has been some concern in recent years over the possible health effects from magnetic fields generated by transmission lines. Suppose a transmission line is suspended 18 meters overhead by a tower and carries 1,445 A of current. The Earth's magnetic field on the surface is approximately 5.0 x 10-5 T. What percentage of the Earth's magnetic field is the field produced on the ground by the transmission lines

The melting point of the clear supernatant is lower than for the 0 ° c of the original liquid when a solution is added to it.

The temperature at which a material becomes liquid or solid is known as the melting or freezing point of that substance. Depending on the degree of bonding in between particles plus their mass, various substances have varying melting points.

Water typically has a freezing point and melting point of 0 °C or 32 °F. If supercooling takes place or there are pollutants in the water that might cause freezing point elevation to happen, the degree may be lower.

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Graphs are more preferred over numerical data because graphs makes it a lot easier to compare large data trend at first glance.

A graph can be defined as a pictorial representation or a diagram that represents data or values in an organized manner.

The following are some of the advantages of graphs over numerical data;

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I agree with Tosh because inertia depends on mass. So Mac is wrong.

Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that path unless acted upon by an external force.

Newton's first law of motion is also called the law of inertia because it depends on the mass of the object.

Inertia is the reluctance of an object at rest to start moving or the relictance of an object in motion to stop moving. The greater the mass of an object, the greater the inertia of the object.

Thus, Mac is wrong while Tosh is right because inertia does not depend on the speed of an object rather, it depends on the mass of the object.

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The distance between Mankato and Duluth is 237 miles i.e.  equal to 381.415 kilometer approximately.

Distance can be define as, the total movement of an object without any regard to direction. Thus in very simple word the distance between two points is the length of the line segment that connects them. The distance between two points is always positive.

A line segment is a term of geometry that, the part of a line having two endpoints

The distance between Mankato and Duluth = 237 miles

1 miles = 1.60934 kilometers

237 miles = 237 × 1.60934 kilometers

237 miles = 381.41358 kilometers

Therefore ,we can write the distance between Mankato and Duluth in kilometers is 381.4 kilometers.

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A foodservice operation typically has 48 hours to correct a violation of a priority item.

Foodservice operations are subject to regular inspections by health departments to ensure that they comply with food safety regulations. Priority items refer to violations that are most likely to contribute to foodborne illness or injury if not addressed immediately.

Priority items include, but are not limited to, issues related to food temperature control, inadequate cooking, poor hygiene practices, and contaminated food contact surfaces. When a priority item violation is identified during an inspection, the foodservice operation is typically given 48 hours to correct the issue.

The exact timeline for correction may vary depending on the severity of the violation and the specific requirements of the local health department. Failure to correct priority item violations within the specified timeframe can result in fines, closure of the foodservice operation, or legal action.

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Studies of sunquakes, or helioseismology, have revealed that our mathematical models of the solar interior are fairly accurate. The correct option is (B).

Helioseismology is the study of the Sun's internal structure and dynamics by analyzing its oscillations.

These oscillations, often referred to as sunquakes, are caused by sound waves trapped and bouncing within the Sun. By studying the properties and behavior of these waves, scientists can gain valuable insights into the solar interior.

Through helioseismology, scientists have found that our mathematical models of the Sun's interior, based on principles of physics and stellar evolution, align quite well with the observed data.

The oscillation patterns and frequencies detected from the Sun match the theoretical predictions, providing confidence in our understanding of the Sun's internal structure, composition, and energy generation mechanisms.

A) the Sun vibrates only on the surface.

Helioseismology studies have revealed that the Sun vibrates not only on its surface but throughout its interior as well. Therefore, option A is incorrect.

Overall, helioseismology has contributed significantly to our knowledge of the Sun's dynamics and has validated our mathematical models, making option B the correct answer.

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Answer:

c

Explanation:

diluted means weakened

Another term for weak solutions is dilute solution. Thus, the correct option for this question is C.

A weak solution may be defined as a type of solution that significantly partially dissociates into its ions in an aqueous solution or water. In contrast, a strong solution fully dissociates into its ions in water.

The concentration of the weak solution is found to be lower as compared to the strong solution. The word dilute also symbolizes the presence of less concentration in any solution.  

The main difference between weak and strong solutions is true that for strong solutions we are given a Brownian motion on a given probability space whereas for weak solutions we are free to choose the Brownian motion and the probability space.

Therefore, another term for weak solutions is dilute solution. Thus, the correct option for this question is C.

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By using uniform motion, the displacement of a fallen crate after 2.9 seconds is  41.209 meters.

We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

t = 2.90 s

vo = 0 m/s

a = g = 9.8 m/s²

By substituting the given parameters, we can calculate the displacement with the third equation

s = vo . t + 1/2 . a . t²

s = 0 . 2.9 + 1/2 . 9.8 . 2.9²

s = 0 + 41.209

s = 41.209 m

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I think you might be referring to this full question:

When a planet temporarily moves westward in the sky over the course of several weeks or months (instead of eastward, as it typically does), we call it:

When a planet temporarily moves westward in the sky over the course of several weeks or months we call it retrograde motion.

Retrograde motion is a movement that occurs when a planet rotates at a slower speed compared to another celestial body.

This type of slow movement (retrograde motion) gives us the illusion that the planet is retrograding regarding the other celestial body.

In conclusion, when a planet temporarily moves westward in the sky we call it retrograde motion.

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A car that has a forward thrust of 3kN and accelerates from 20 m/s to 40 m/s in 10 s has a mass of 1500 kg. Thus, the mass of the car is the 1500 kg

From the question, we are to calculate the mass of the car.

From Newton's second law of motion, we have that

F = ma

Where F is the Net force

m is the mass

and a is the acceleration

Also, from one of the equations of linear motion, we have that

v = u + at

Then, we can write that

\(a = \frac{v-u}{t}\)

Where v is the final velocity

u is the initial velocity

a is the acceleration

and t is the time taken

Therefore,

\(F = m\frac{(v-u)}{t}\)

From the given information,

u = 20 m/s

v = 40 m/s

t = 10 s

F = 3 kN = 3000 N

Putting the parameters into the equation, we get

\(3000 = m \frac{(40-20)}{10}\)

\(3000 = m \times \frac{20}{10}\)

3000 = 2m

Then,

m = 3000 ÷ 2

m = 1500 kg

Hence, the mass of the car is the 1500 kg.

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Answer:

OD. thermal conductivity

Explanation:

Answer:

C density that's what I thing at least

The fastest runner, given the data from the graph is Joel

To know the runner which has the fastest speed, we shall determine the speed of each runner over a particular time. Details below:

For Robin:

Speed = distance / time

Speed of Robin = 80 / 12

Speed of Robin = 6.67 m/s

For Joel:

Speed = distance / time

Speed of Joel = 100 / 12

Speed of Joel = 8.33 m/s

From the above calculation, we have:

Thus, we can conclude that the fastest runner is Joel

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Missing part:

See attached photo

In a Michelson interferometer, light of wavelength 632.8 nm from a He-Ne laser is used. When one of the mirrors is moved by a distance d, 8 fringes move past the field of view.

The electric field in a parallel plate capacitor has a magnitude of 1.40 x 10^4 V/m.

The electric field in a parallel plate capacitor is given by the formula

E = σ / ε0where E is the electric field, σ is the surface charge density, and ε0 is the permittivity of free space.

σ = ε0 x E

E = 1.40 x 10^4 V/m (given)

ε0 = 8.85 x 10^-12 C^2/Nm^2 (given)

σ = ?Plugging in the values we get,

σ = ε0 x E

= 8.85 x 10^-12 x 1.40 x 10^4

= 1.239 x 10^-7 C/m^2

Therefore, the surface charge density on the positive plate is 1.239 x 10^-7 C/m^2.

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Answer:

because the car needs gas so why wouldnt it stop working

Explanation:

Answer:

Explanation: Renewable energy is energy that has been derived from earth's natural resources that are not finite or exhaustible, such as wind and sunlight. Renewable energy is an alternative to the traditional energy that relies on fossil fuels, and it tends to be much less harmful to the environment.

Answer:

The estimated volume of a standard table tennis ball is approximately 2.7 cm³.

The estimated volume of a standard golf ball is approximately 41.6 cm³.

Explanation:

The volume of the dilated prism (with a volume of 450 ft³ is dilated by a factor of 2) = 3600 ft³

The volume of the dilated prism will be 8 times the volume of the original prism. This is because the volume of a prism is related to its linear dimensions by the formula:

V = lwh

Where.

V is the volume

l is the length

w is the width, and

h is the height.

When a prism is dilated by a factor of 2, each of its linear dimensions is multiplied by 2, so the volume will be multiplied by 2³, or 8.

Therefore, the volume of the dilated prism will be 450 ft³ × 8

= 3600 ft³.

So the answer is 3600 ft³.

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the guy above me is correct^^

yw<33

Answer:

The speed at which a planet orbits the Sun changes depending upon how far it is from the Sun. When a planet is closer to the Sun the Sun’s gravitational pull is stronger, so the planet moves faster. When a planet is further away from the sun the Sun’s gravitational pull is weaker, so the planet moves slower in its orbit.

Answer:

Greatest position of the ball are z

Answer:

v₂ = 1.8 [m/s]

Explanation:

To be able to solve this problem we must raise the principle of conservation and quantity of movement. It is going to study the momentum before and after the firing of the rifle.

P = m*v

where:

P = momentum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

Now we need to analyze the moment before and after the shot.

\((m_{1}+m_{2})*v_{1}=-(m_{1}*v_{2})+(m_{2}*v_{3})\)

where:

m₁ = mass of the rifle = 5 [kg]

v₁ = velocity of the rifle and the bullet before firing = 0 (no movement)

m₂ = mass of the bullet = 15 [g] = 0.015 [kg]

v₂ = velocity of recoil [m/s]

v₃ = velocity of the bullet after firing = 600 [m/s]

Now replacing:

\((5+0.015)*0 = -(5*v_{2})+(0.015*600)\\9 = (5*v_{2})\\v_{2}=1.8 [m/s]\)

Momentum is the product of mass and velocity. The recoil velocity of the rifle weighing 5 kg is 1.8 m/s.

According to the law of conservation of momentum if two objects are in contact with each other then for that system of the two objects the momentum of the object before will be equal to the momentum of the object after the collision.

GIven to us

Mass of the rifle, M = 5 kg

Mass of the bullet, m = 15 g = 0.015 kg

Velocity of the bullet afterwards, v₂ = 600 m/s

We know that according to the law of conservation of momentum, the momentum of the bullet and riffle before shooting will be equal to the momentum of the bullet and riffle after shooting.

\(Mu_1 + mu_1 = Mv_1 + mv_2\)

Since, before shooting the bullet was in the riffle and the velocity of both was 0,

\(M(0) + m(0) = Mv_1 + mv_2\\\\-Mv_1 = mv_2\\\\v_1 = -\dfrac{m \times v_2}{M}\)

Substitute the values,

\(v_1 = -\dfrac{0.015 \times 600}{5}\\\\v_1 = -1.8\rm\ m/s\)

Thus, the recoil of the rifle is -1.8 m/s, the negative sign denotes that the velocity of recoil was in opposite direction to the bullet.

Hence, the recoil velocity of the rifle weighing 5 kg is 1.8 m/s.

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the force between the two wires if they are separated by 2.50 cm is 0.525 N.

Given that force F between two parallel wires carrying electric currents is inversely proportional to the distance d between the wires and that a force of 0.750 N exists between wires that are 1.75 cm apart and that we are supposed to find the force between them if they are separated by 2.50 cm.

Let the initial force be F₁ and the initial distance be d₁.

Therefore, we can write the relationship between force and distance as;

F₁d₁ = F₂d₂

Where

;F₁ = 0.750 N (initial force)

d₁ = 1.75 cm (initial distance)

F₂ = ? (force at new distance)

d₂ = 2.50 cm (new distance)

Let us find F₂;F₁d₁ = F₂d₂F₂ = F₁d₁/d₂

Now substitute the values we know;

F₂ = (0.750 N x 1.75 cm) / 2.50 cmF₂ = 0.525 N

Therefore, the force between the two wires if they are separated by 2.50 cm is 0.525 N.

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Answer:

Test multiple times

Explanation:

the more you test the experiment the better and more accurate result you will have also having a good setup or organized data will help with making it easier to execute the experiment.

Interstellar is a movie about the human race being faced with a

civilization ending blight. A small group of brave individuals explore

possible new habitable worlds for humans. The following questions

will help guide you through the movie and hopefully get you

thinking about the future.

1. The Cooper family hijacks a UAV (Unmanned Aerial Vehicle).

What do you know about UAVs and how they are used today?

2. While at the parent-teacher conference, Murphy’s teacher

mentions that the Apollo program -- the same program that

landed humans on the Moon -- was just propaganda to

convince the Soviet Union to bankrupt themselves trying to do

the same. The reason for this was to encourage children to

take care of their own planet, rather than wasting precious

resources day dreaming of leaving it. Which side of the fence

would you sit on? Would you look for ways to save Earth and

our ability to stay there, or would you look to the sky, and find

a new planet to live on? Why?

3. A) What natural disaster(s) is Earth suffering from in the beginning of Interstellar?

B) If one of these happened now what actions would you take to protect yourself?

4. Cooper, Doyle, Romilly, and Dr. Brand (female) rendezvous with the Endurance in orbit around Earth. Once

onboard, they begin to spin the Endurance. Why? (Think about the physics happening here!) Draw a diagram.

5. Why or why isn’t space exploration important for the people in the movie interstellar? Why or why isn’t

space exploration important in today’s society? Defend your answers.

6. Explain time dilation as best as you can.

7. A) Estimate how long Dr. Mann went without human contact while on the ice planet:

The Lazarus mission was __________ years ago. It takes _______ years to get to Saturn from Earth. Cooper

and Dr. Brand were on Miller’s planet for approximately __________ years. This means the total time Dr.

Mann went without human contact is: ___________ years.

B) Consider the longest time away from human contact you've experienced. What did you do to keep yourself

occupied?

Useful Vocabulary

Blight: A specific symptom affecting plants in

response to infection by a pathogenic organism. The

potato famine of Ireland was caused by blight.

Event horizon: Is a point in which not even light can

escape the gravitational influence of the black hole.

Maroon: The intentional action of leaving someone

in a remote area such as an inhabitable island.

Rendezvous: When two objects meet and typically

dock together while in space.

Time dilation: A difference of elapsed time between

two events as measured by observers either moving

relative to each other or differently situated from

gravitational masses.

UAV: Unmanned Aerial Vehicles are remote

controlled or autonomous flying vehicles.

Unmanned aerial vehicles (UAVs) are typically used for a variety of purposes such as:

An unmanned aerial vehicle (UAV) is also referred to as a drone and it can be defined as an aircraft that is designed and developed to be piloted or controlled by a remote control (ground-based controller) and on-board computer systems.

This ultimately implies that, an unmanned aerial vehicle (UAV) is a class of aircrafts that can fly without any human pilot, cabin crew, or passengers on board.

In conclusion, unmanned aerial vehicles (UAVs) carries no human pilot and are typically used for a variety of purposes such as:

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The total distance  of the particle is 7.33

Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.

The distance between two sites is the length of the route. The metric unit of length is the metre.

It's interesting to observe that while some physics symbols, like "d" for distance, are extremely relatable, others, like "c" for light speed, are not.

The distance formula is a formula used to determine how far apart two places are from one another. The dimensions of these points are unlimited.

Given,

Distance s = ∫03It2 - 6t + 8Idt

= ∫02(t2 - 6t + 8)dt + ∫23(6t - t2 - 8)dt

= (t3/3 - 3t2 + 8t)02 + (3t2 - t3/3 - 8t)23

=(8/3 - 12 + 16) + (27 - 9 - 24) - (12 - 8/3 - 16)

= 20/3 - 6  + 20/3 = 22/3

=7.33

Therefore the total distance is 7.33

The complete question is : A particle travels along the x-axis so that at time t≥0 its velocity is given by v(t)=t2−6t+8. What is the total distance the particle travels from t = 0 to t = 3?

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Answer:

600 kg

Explanation:

Answer: 5.0025 * 10^-8 N

Explanation:

\(F = \frac{Gm_1m_2}{r^{2} }\)

F = gravitational force

G (is a constant) = 6.67×\(10^{-11}\) N(m/kg)^2

m1 = mass of first object = 500 kg

m2 = mass of second object = 600 kg

r = distance between them = 20 M

\(6.67*10^{-11}N(m/kg)^2* \frac{500 kg*600 kg}{(20m)^2}\\6.67*10^{-11}N*\frac{m^2}{kg^2} * \frac{300000kg^2}{400m^2}\\6.67*10^{-11} N * 750\\5002.5 * 10^{-11} N \\5.0025 * 10^{-8} N\)

Force applied is directly proportional to displacement.

It is given by the formula

Here F is the force , k is the spring constant , x is the displacement.

Substituting the values,

In the longitudinal wave ,B represents the phenomenon of rarefaction. Rarefaction refers to the region of a sound wave where the pressure of the medium is lower than its normal value.

Rarefaction is a term used to describe a decrease in the density or pressure of a substance, such as a gas or liquid. In the context of sound waves, rarefaction refers to the region of a sound wave where the pressure of the medium is lower than its normal value, causing the particles of the medium to be spread further apart than usual.

Sound waves are composed of regions of compression and rarefaction that alternate in a regular pattern as the wave travels through a medium. In a compressional (longitudinal) sound wave, the particles of the medium are pushed together in regions of compression, while they are spread apart in regions of rarefaction. These changes in pressure and density cause the wave to propagate through the medium.

In general, rarefaction can occur in any medium, not just in sound waves. For example, in a gas, rarefaction can be caused by a decrease in pressure, temperature or density. In a liquid, rarefaction can be caused by a decrease in pressure or density. Rarefaction waves can be observed in many natural phenomena, such as atmospheric pressure waves, seismic waves, and waves on the surface of water.

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•What is the all time speed record for completing the iditarod?

Answer:

•In 2016, Dallas broke his own record, finishing in 8 days, 11 hours, 20 minutes and 16 seconds. In 2017, Mitch Seavey broke all previous records by finishing in 8 days, 3 hours, 40 minutes and 13 seconds, which currently stands as the fastest winning time for the Iditarod.

Explanation:

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