An area near a hazardous materials incident that is upwind from the incident and on the same level is a good location for a:________

Answer:0.99 N

Explanation:

1200 N               F

||||||||||||      =   |||||||||||||||||||

3.2 m2             0.0075m2

F=0.99

We would need 200 turns of wire to produce the same magnetic field strength of 0.10 T.

The magnetic field strength at the north pole of a 2.0-cm-diameter, 8-cm-long Alnico magnet is 0.10 T. To produce the same field with a solenoid of the same size, carrying a current of 1.5 A, you would need 200 turns of wire.

What is the expression for the magnetic field strength of a solenoid?

The expression for the magnetic field strength of a solenoid is given by:

\(�=�0���B= Lμ 0​ NI\)

​

where B is the magnetic field strength, μ0 is the permeability of free space, N is the number of turns of wire, I is the current passing through the wire, and L is the length of the solenoid.

Hence, we can find N as follows:

\(�=���0�N= μ 0​ IBL​\)

Given that B = 0.10 T, L = 8 cm = 0.08 m, and I = 1.5 A.

Substituting these values in the above expression, we get:

\(�=0.10×0.084�×10−7×1.5=199.39≈200N= 4π×10 −7 ×1.50.10×0.08​ =199.39≈200\)

Therefore, you would need 200 turns of wire to produce the same magnetic field strength of 0.10 T with a solenoid of the same size, carrying a current of 1.5 A.

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Answer:

weight

Explanation:

" the greater the pull of gravity on an object, the greater the weight of that object." In physics, weight is measured in newtons (N), the common unit for measuring force.

The weight of the diver in newtons is 770 N.

The total decrease or increase in the gravitational potential energy of the diver and Earth system can be given by,

∆U = mg∆h

Where,

ΔU is the change in gravitational potential energy,

m the mass of the diver,

g is acceleration due to gravity,

∆h is the total change in height.

It is given that the change in gravitational potential energy is 28500 joules and the change in height is 37 m.

Now putting all the values,

28500 = mg(37)

m = 770 Kg.

Hence, weight of the diver is 770N.

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Based on the fact that the student is moved twice as far from the center of the earth, her new weight will be 112.5 N.

When the student was moved by the same distance from the center of the earth, her weight was halved.

When she was then moved twice as far, her weight was halved again.

This means that her new weight is:

= 450 x 1/2 x 1/2

= 450 x 1/4

= 112.5 N.

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Sophia's acceleration at the bottom of the roller coaster loop is 29.18 m/s².

The mass of Sophia is 49.0 Kg. The net force that she experiences at the bottom of the roller coaster loop during her school's physics field trip to local amusement park is 1430N.

The net force on a body is given by the formula,

F = Ma

Where,

F is the net force on the body,

M is the mass of the body,

a is the acceleration of the body.

Putting the values to find the acceleration of sophia,

1430 = 49(a)

a = 29.18 m/s².

So, Sophia's acceleration at this location is 29.18 m/s².

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Complete Question:

A student has been assigned to measure the density of an irregularly shaped piece of metal.

Which apparatus would be most appropriate to carry out this task?

Group of answer choices

A. ruler, balance

B. beaker, crucible

C. flask, Bunsen burner

D. graduated cylinder, balance

Answer:

D. graduated cylinder, balance

Explanation:

In this scenario, A student has been assigned to measure the density of an irregularly shaped piece of metal.

The apparatus which would be most appropriate to carry out this task is a graduated cylinder and balance.

A graduated cylinder can be defined as a measuring cylinder used for the measurement of the volume of an irregularly shaped piece of metal or liquids. It is typically marked with horizontal lines on its side as units of measurement for volume. The balance is then used to weigh the metals mass.

Answer:

i) 196J ii) 78.3J iii) 14m/s

Explanation:

i) Formula for gravitational potential energy is

Eg = mgh

Eg = (2)(9.8)(10)

Eg = 196J

ii) Formula for kinetic energy is

Ek = (mv^2)/2

We need to find the velocity first by using one of the key equations of accelerated motion

v^2 = vi^2+2aΔd

v = √vi+2aΔd

v = √2(9.8)(4)

v = 8.85 m/s

Ek = ((2)(8.85^2))/2

Ek = 78.3J

iii)

v = √vi+2aΔd

v = √2aΔd

v = √2(9.8)(10)

v = 14 m/s

Answer: The ability to do work.

Explanation: Scientists define energy as the ability to do work. There is potential energy (where an object at rest has the capacity to have motion) and kinetic energy (where an object is in motion).

We can say that the downward gravitational pull of the Earth on the car and the upward contact force of the Earth on it are equal and opposite because the two forces form an interaction pair.

According to Newton's Third Law of Motion, for every action force, there is an equal and opposite reaction force. In the case of the car at rest, the action force is the gravitational force exerted on the car by the Earth, which is directed downwards. The reaction force is the contact force exerted on the car by the Earth, which is directed upwards.

Since these two forces are equal and opposite, we can conclude that the net force on the car is zero. Mathematically, we can represent this as:

F_gravity = -F_contact

where F_gravity is the gravitational force exerted on the car by the Earth, and F_contact is the contact force exerted on the car by the Earth.

By adding the two forces, we get:

F_net = F_gravity + F_contact = 0

This means that the car is in a state of equilibrium, and there is no net force acting on it.

In conclusion, we can conclude that the downward gravitational pull of the Earth on the car and the upward contact force of the Earth on it are equal and opposite because the two forces form an interaction pair. This relationship is explained by Newton's Third Law of Motion, which states that every action force has an equal and opposite reaction force. Since the net force on the car is zero, it is in a state of equilibrium.

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Answer: Each biome consists of many habitats whose ecosystems have adapted to the small differences in climate and the environment inside the biome.

1. Most Plant and Animal Species Are Found in the Rainforest Biome.

2. Rainforest Plants Help in the Fight Against Cancer

3. Not All Deserts Are Hot.

4. One-Third of the Earth's Stored Carbon Is Found in Arctic Tundra Soil.

Biome  is a regional or global land area that is characterized by the plants, animals and climate in that area.

Each biome consists of many __habits__ whose  _ecosystem_ have adapted to the small differences in climate and the environment inside the biome.

Based on temperature and rainfall there are six major biomes:

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The Nernst Equilibrium Potential is the potential energy (in mV) when an ion is in electrical equilibrium. The correct option is C.

The Nernst equilibrium potential is a theoretical membrane potential at which the electrical gradient of an ion is precisely counterbalanced by the opposing chemical gradient. For the ion, this means that there is no net flux of the ion through the membrane, and it is at equilibrium.

As a result, this concept defines the voltage at which ion movement would be equal if there were no other forces opposing the movement. For a single ion, the Nernst equilibrium potential may be computed utilizing the following formula:

E ion = (RT/zF) * ln([ion]outside/[ion]inside)

where E ion  represents the Nernst equilibrium potential for an ion, R is the gas constant, T is temperature (in Kelvin), z is the charge of the ion, F is Faraday's constant, and [ion]outside/[ion]inside represents the ion concentration ratio outside/inside the cell.

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Answer:

-89.22 C and 183.94 K

Explanation:

TC= (-128.6 - 32) / 1.8 = -89.222222 C

TK= -89.22 + 273.16 = 183.94

The conversion of −128.6°F temperature in degree centigrade -89.22 is

and to kelvin is 183.94 k

Fahrenheit temperature scale is a scale based on 32 for the freezing point of water and 212 for the boiling point of water, the interval between the two being divided into 180 parts.

The 18th-century German physicist Daniel Gabriel Fahrenheit originally took as the zero of his scale the temperature of an equal ice-salt mixture

and selected the values of 30 and 90 for the freezing point of water and normal body temperature, respectively; these later were revised to 32 and 96, but the final scale required an adjustment to 98.6 for the latter value.

To convert from fahrenhiet to degree celcius

\(T_C= \dfrac{(-128.6 - 32) }{ 1.8} = -89.222222 \ ^oC\)

To convert from kelvin to degree

\(T_K= -89.22 + 273.16 = 183.94\ k\)

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The correct terms that fills the box are;

(i) The incident ray

(ii) The normal

(iii) The reflected ray

(iv) The angle of incident

(v) The reflected angle

The terms of the ray diagram is illustrated as follows;

(i) This arrow indicates the incident ray, which is known as the incoming ray.

(ii) This arrow indicates the normal, a perpendicular line to the plane of incidence.

(iii) This arrow indicates the reflected ray; the out going arrow.

(iv) This the angle of incident or incident angle.

(v) This is the reflected angle or angle of reflection.

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The lowest note on a typical 88-key piano is designated A0. The 0th octave note "A" is identified as such. The first octave's "A" note, which is an octave higher than that, is A1, not A.

With 88 keys, a full-size piano offers a range of little more than 7 octaves. The third white key from the right end of the piano, which is the highest A note, has a frequency of 3520 hertz.

Discover the relationship between the frequencies of two subsequent notes, or of two adjacent keys on the piano keyboard.

The fundamental harmonic, or lowest note on a grand piano, has a wavelength that is twice the length of the vibrating part of the string, or = 2L, where L = 1.90 m.

The wave's velocity is given by v = f, but it also depends on the tension of the wire, as shown by v = qT, where m/ is the wire's linear mass density ( is the full length of the wire, not the vibrating part).

\(T = u(\lambda f)^2= 4 ul^2f^2= \frac{4 ml^2f^2}{l}\)

\(= \frac{4.400\times (1.90)^2 (27.5)^2}{2}\)

\(= 2185N\)

Therefore, the tension is 2185 N.

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Answer:

A

Explanation:

got it right on edge 2021 :)

The product needs to better solve the problem for which it was designed ( first option )

After testing the new technology on patients and it showed only 25% success rate ( very low success rate).  It is concluded that before Doctors can report that the new technology design is successful is when it better solves the problem for which it was designed for ( i.e. increase in the success rate to > 50% ). because for a procedure to be considered successful for deployment it will need to record a success rate of over 50% of the test patients.

Therefore the product needs to better solve the problem for which it was designed

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The main factor that determines the stages of a star after the main sequence is the star mass. Depending on the mass, stars will develop as average stars -low mass- or giant stars -high mass-.

The star cycle is the sequence of changes that a star undergoes throughout its existence

Stars are born from the nebula, which is dust and gas particles condensation due to the gravity effect in the interstellar clouds.

These stellar clouds collapse and compose smaller regions, each of which later contracts and compose the stellar cores. This is a more advanced level of condensation.

Stelar cores are protostars that contract and increase their temperature until nuclear reactions occur. Hydrogen is converted into Helium and the new star gets born.

This new star is in its main sequence, which is the equilibrium point between gravity and nuclear fusion, which helps the star keeps stable as long as the fuel lasts.

Stars spend most of their lives in the main sequence until all hydrogen turns into helium and there is no more fuel left.

At this point, the star is a subgiant, and its core begins its contraction, increasing the star's temperature.

The star increases in size and luminosity, turning into a giant.

After the subgiant stage, the star enters a giant phase. The star can reach a size up to 100 times its current size.

When the core reaches a certain temperature, helium turns into carbon.

The following events depend on the star mass.

When average-sized stars run out of fuel, the red giant begins to disintegrate, losing its outer layers and exposing its core, which will become a white dwarf.

When fuel is over in the star, the gravitational collapse produces an explosion originating the supernova.

This neutron star is a celestial body that remains as a remnant after the explosion giving rise to a supernova.

In these cases, if the star core has a mass > 3 solar masses, the star collapses into a black hole.

In conclusion, the main factor that determines the stages a star follows after the main sequence is the star mass. Depending on the mass, stars will develop as average stars -low mass- or giant stars -high mass-.

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Answer:

A I think.

Hope it helps and pls give me brain list

Explanation:

Answer:

Heat

Explanation:

Energy that is transferred from a warmer object to a cooler object is called heat.

Answer:

Heat

Explanation:

Heat is the transfer of energy from a warmer object to a cooler object. For example, a lighted match (higher temperature object) will transfer heat to a large pan filled with lukewarm water (lower temperature object).

Answer:

The traffic light pulling upward on earth with a 1500 N force.

Explanation:

The height of the cliff is 8.7 meters while 65kg mass falls off a cliff and hits the ground with the velocity of 18.25m/s.

Velocity is a measure of an object's speed and direction of motion. It is a vector quantity, meaning it has both magnitude (speed) and direction. Velocity is often represented by the symbol "v" and is usually measured in meters per second (m/s). The velocity of an object can be changed by applying a force to it, causing it to accelerate. The acceleration can be positive, negative, or zero, depending on the direction and magnitude of the force.

Calculation for finding height of the cliff

The equation of motion to find the height of the cliff

\(h = vi \times t + 1/2 \times a \times t^2\)

where h is the height of the cliff, vi is the initial velocity (which is 0 m/s because the object is starting from rest), t is the time it takes to fall, and a is acceleration due to gravity \((9.8 m/s^2)\).  Final velocity of the object \((18.25 m/s)\) to find t should be used.

\(vf^2 = vi^2 + 2\times a \times h\)

\(18.25^2 = 0 + 2 \times9.8 \times h\)

Hence,

\(h = (18.25^2) / (2 \times9.8) = 170.5625 m/s^2 / 19.6 m/s^2 = 8.7 meters\)

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The mutual inductance (M) in a two-coil system depends on the number of turns in each coil (N₁ and N₂), the permeability of the medium between the coils (µ), and the geometry of the coils.

Mutual inductance is a measure of the ability of one coil to induce an electromotive force (emf) in the other coil when a current changes in one of them. It depends on several factors.

First, the number of turns in each coil plays a role. The greater the number of turns, the stronger the magnetic field produced by the coil, resulting in a higher mutual inductance.

Second, the permeability of the medium between the coils is important. The permeability determines how easily magnetic flux lines pass through the medium. A higher permeability leads to stronger coupling between the coils and, consequently, higher mutual inductance.

Lastly, the physical arrangement and geometry of the coils affect the mutual inductance. The proximity and alignment of the coils influence the amount of magnetic flux linking them, thereby impacting the mutual inductance.

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Answer:

P = 4000 [Pa]

Explanation:

Pressure is defined as the relationship between Force and the area where the body rests.

The support area is equal to:

\(A=50*20=1000[cm^{2} ]\)

But we must convert from square centimeters to square meters.

\(1000[cm^{2}]*\frac{1^{2}m^{2} }{100^{2}m^{2} }=0.1[m^{2} ]\)

And the pressure is:

\(P=\frac{F}{A} \\P=400/0.1\\P=4000[N/m^{2} ]or 4000[Pa]\)

Answer:

a) given that mass=0.6kg,distance of stretching from equilibrium position x=0.9m from new ton's second law,F=ma where a is acceleration of the body.Therefore,force on the spring -mass syste

Explanation:

hope it helps

The work is given by:

Plugging the values given we have:

Therefore the man do 120 ft*lb of work

Answer:

v2^2 - v1^2 = 2 g s        fundamental formula

v2 = v1 + 2 g    = v1 + 19.8         increase in velocity in 2 sec

v1^2 + 39.6 v1 + 392 - v1^2 = 2 * 9.8 * 123.1 = 2412.76

v1 = (2412.76 - 392) / 39.6 = 51.03

v2 = 51.03 + 19.6 = 70.63

T = 70.63 / .8 = 7.207 sec     time to fall height of tower

S = 1/2 g T^2 = 4.9 * 7.207^2 = 254.5 m

(Note  v2^2 - v1^2 = 70.63^2 - 51.03^2 = 2385 m

2385 / (2 * 9.8) = 122 m (close to 123.1    as was given

Answer:

im not really sure, sorry

Answer:

C

Explanation:

the ice cream is transferring the coldness into her hand and slowing down the particles. hot means they move faster, cold is to slow down

a) Apparent magnitude tells us how bright an object will appear from earth.

b) Absolute magnitude tells us about the object's actual brightness.

Apparent magnitude and absolute magnitude are two different concepts used to describe the brightness of celestial objects. Let us discuss each concept in detail.

Apparent Magnitude :The term apparent magnitude is used to describe how bright an object appears to be from Earth. It is the measure of the object's brightness as observed from a specific distance, usually the Earth. The term is based on how much light reaches the observer from the object. The brighter an object appears, the lower its apparent magnitude value will be.

Absolute Magnitude: Absolute magnitude is a measure of the intrinsic brightness of a celestial object. It is a measure of the actual brightness of an object if it was located at a standard distance of 10 parsecs away from Earth. It is a measure of the total amount of energy emitted by an object rather than how bright it appears to be from Earth. The more massive an object is, the more energy it will emit, and thus, the brighter it will be.Absolute magnitude is represented by a smaller numerical value than apparent magnitude.

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