In which direction does the electric field point at a position directly west of a
negative charge?
A. North
B. West
O C. East
O D. South​

deloer je n'ai pas mla reponse a tas question

Therefore, the statement that "X-ray telescope mirrors are very similar to optical telescope mirrors" is FALSE since they are used for capturing and detecting different wavelengths of light. Optical telescopes detect and focus visible light while X-ray telescopes capture and detect high-energy X-ray radiation.

X-ray telescope mirrors are not very similar to optical telescope mirrors. The two are different because they have different types of wavelengths of light they detect. While optical telescopes reflect and focus visible light to produce images, X-ray telescopes capture and detect high-energy X-ray radiation that is outside the visible spectrum.

What are X-ray telescopes?

X-ray telescopes are scientific instruments that are designed to observe objects in space that emit X-ray radiation. The mirrors of X-ray telescopes are made of a special type of glass or metal that can reflect and focus X-rays in the same way that optical telescopes focus and reflect light. The main function of X-ray telescopes is to gather high-energy X-rays that are emitted by objects in space such as black holes, neutron stars, and other exotic celestial bodies. They can also be used to study the X-ray properties of galaxies, stars, and other astronomical objects.

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Answer:

\(W=7.56\times 10^{-19}\ J\)

Explanation:

Given that,

The work function for silver is 4.73 eV.

We need to find the value of the work function from electron volts to joules.

We know that,

\(1\ eV=1.6\times 10^{-19}\ J\)

For 4.73 eV,

\(4.73\ eV=1.6\times 10^{-19}\times 4.73\\\\=7.56\times 10^{-19}\ J\)

So, the work function for silver is \(7.56\times 10^{-19}\ J\).

Cosmic connections are people who come into our lives to help us grow and develop spiritually.

Cosmic Connections is a philosophy exploring the interconnectedness of all living things and the universe. It encourages us to see ourselves as part of a larger cosmic family, recognizing our relationships with the Earth, the stars, and the galaxies.

This interconnection is based on the concept that everything in the universe is connected and can affect each other, and that our lives are not just the result of random chance. These special people help us to develop spiritually and can be seen as guides on our journey. They may come in the form of friends, mentors, teachers, or even strangers. Ultimately, these cosmic connections are here to help us to become the best versions of ourselves.

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Answer:

3.94

Explanation:

divide total mass by the number of blocks since they are identical

Answer:

3.94

Explanation:

You want to find the mass of one block. Since we know there is 8 blocks with the same mass, you can divide the total mass by 8 since the mass is equally distributed within the 8 blocks

In terms of increasing rotation rate, the objects can be ranked as follows:

white dwarf > black hole (unclear) > neutron star.

The three objects listed, black holes, neutron stars, and white dwarfs, are all astronomical objects that have different properties and characteristics. When it comes to their rotation rates, each of these objects rotates at different speeds, which can be used to rank them in terms of increasing rotation rate.

A black hole is a region of space where the gravitational pull is so strong that nothing, not even light, can escape. Due to its immense gravitational pull, a black hole can rotate very quickly. However, since it is difficult to observe the rotation rate of a black hole, it is not clear where it should be ranked in terms of increasing rotation rate.

A neutron star is a small and dense object that is formed when a massive star explodes in a supernova. Due to its small size and high density, a neutron star can rotate very quickly, up to hundreds of times per second. This makes neutron stars one of the fastest rotating objects in the universe.

A white dwarf is a small and dense object that is formed when a star like our sun runs out of fuel and collapses. White dwarfs are relatively slow rotating objects, with rotation rates typically on the order of days or weeks.

Therefore, in terms of increasing rotation rate, the objects can be ranked as follows: white dwarf > black hole (unclear) > neutron star.

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Answer:

A study looking at how alcohol consumption impacts the brain. A study to discover the components making up human DNA. A study accessing whether stress levels 

Explanation:

For example, a scientist that tries to figure out how the body makes cholesterol, or what causes a particular disease, is performing basic scienc

The electric flux that flows through the loop is 4.27 Nm²/C, and the loop's normal ought to be rotated by about 39.5 degrees.

Electric flux is a characteristic of an electric field and refers to the number of electric field lines that cross a specific area. Electric field lines, according to this theory, begin with positive electric charges and end with negative electric charges.

Part a: The following formula must be used to determine the electric flux through the loop:

= E A cos() Since the electric field is parallel to the x-axis and the loop is circular, the area of the loop can be calculated as follows:

By substituting the given values for A = r², we obtain:

A = (0.177m)² = 0.0985 m² = 67.9° = 1.184 radians = (47.6 N/C)  (0.0985 m²)  cos(1.184)  4.27 Nm²/C Part (b) In order to determine the angle at which the flux through the loop becomes 0.304 Nm²/C, we can rewrite the equation for electric flux to account for:

= cos(-1)(/(EA))) By substituting the values provided, we obtain:

= cos(-1)(0.304 Nm²/C / (47.6 N/C  0.0985 m²))  = 39.5°; consequently, the loop's normal should be rotated by approximately 39.5°.

electric flux is a property of an electric field that can be described as the number of electric lines of force—also known as electric field lines—that cross a specific area. Electric field lines are thought to start with positive electric charges and end with negative electric charges.

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Answer:

finding the volume of an irregular shape

The volume and density of the 60g material are 120cm³ and 0.5 g/cm³ respectively.

Density is expressed mathematically as;

p = m / v

Where m is mass and v is volume.

Given the data in the question;

First, we calculate the volume of the material.

Volume v = l × w × h

Volume v = 4cm × 5cm × 6cm

Volume v = 120cm³

Now, we determine the density of the material.

p = m / v

p =  60g / 120cm³

p = 0.5 g/cm³

Therefore, the density of the material is 0.5 g/cm³.

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The better predictor of increase in force of contraction, change in semg amplitude of spikes.

A force in physics is an effect that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given that in the question the  better predictor of increase in force of contraction, change in semg amplitude of spikes or change in semg frequency of spikes.

The better predictor of increase in force of contraction, change in semg amplitude of spikes.

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The correct answer is option (b): (v v') x, which represents the change in kinetic energy.

The change in kinetic energy of a body can be calculated by using the formula:

Change in kinetic energy = (1/2) m (v'^2 - v^2)

where,

m is the mass of the body, v is the velocity just before the impulse, and v' is the velocity just after the impulse.

(a) v v ix: This option is not correct because the product of velocities and impulse (v v i x) does not represent the change in kinetic energy.

(b) (v v') x: This option is correct. The product of the velocities (v v') multiplied by impulse (x) represents the change in kinetic energy.

(c) (v' v)x: This is not correct as the symbol "" is not meaningful in this context. It is likely a typographical error.

(d) all of these: This option is incorrect because option (a) is not correct. Therefore, not all options are correct.

Therefore, the correct answer is option (b): (v v') x, which represents the change in kinetic energy.

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Answer:

The ocean and atmosphere are connected. They work together to move heat and fresh water across the globe. Wind-driven and ocean-current circulations move warm water toward the poles and colder water toward the equator. ... The majority of the thermal energy at the Earth's surface is stored in the ocean.

Explanation:

The ocean and atmosphere are connected. They work together to move heat and fresh water across the globe. Wind-driven and ocean-current circulations move warm water toward the poles and colder water toward the equator. ... The majority of the thermal energy at the Earth's surface is stored in the ocean.

Answer:

Recover

Explanation:

Got it right on the quiz

(a) The initial temperature is 373.95 K.

(b) The final temperature is 546.15 K.

(c) The total internal energy change of the fluid during this process is 515.4 kJ.

(d) The process can be represented as an isochoric heating process on the P-v diagram and as an isobaric expansion process on the T-v diagram.

(a) To find the initial temperature, we can use the saturated steam tables. At a pressure of 200 kPa, the corresponding saturation temperature is 373.95 K.

(b) Since the volume doubles, the process is an isochoric (constant volume) heating process. Using the ideal gas law, we can determine the final temperature. The initial and final volumes are related by the equation V_final = 2V_initial. Since the mass remains constant, the specific volume (v) is inversely proportional to the density (ρ). Therefore, ρ_final = ρ_initial/2. Using the ideal gas law, we can calculate the final temperature to be 546.15 K.

(c) The total internal energy change can be calculated using the equation ΔU = mC_vΔT, where m is the mass of the fluid and C_v is the specific heat at constant volume. Given the mass as 0.5 kg, the specific heat of water at constant volume, and the temperature change, we can find that the total internal energy change is 515.4 kJ.

(d) On the P-v diagram, the process is represented as a vertical line at 200 kPa, indicating constant pressure. On the T-v diagram, the process is shown as an upward-sloping line, indicating an isobaric expansion process. The initial state is represented as a point on the left, and the final state is represented as a point on the right. The path between the initial and final states is a straight line connecting these two points.

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Radio signals are transmitted using electromagnetic waves, which are categorized based on their frequency and wavelength. The frequency range for AM radio is 540 to 1600 kHz, while the frequency range for FM radio is 88.0 to 108 MHz. In the electromagnetic spectrum, radio waves are located between microwaves and infrared waves, and their frequencies are measured in kilohertz (kHz) and megahertz (MHz).

AM and FM radio stations operate on different frequency ranges, with AM stations transmitting at lower frequencies than FM stations. AM radio signals have longer wavelengths and are able to penetrate buildings and other obstructions more easily than FM radio signals. As a result, AM radio is often used for news and talk radio programming, while FM radio is used for music and entertainment programming. The frequency range of a radio signal is an important factor in determining its range and effectiveness.

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Answer:

2.066 atm

Explanation:

PV = nRT      increase T    volume and n and R remain constant

30 C = 303.15 K      40 C = 313.15

P  prop to T      new P   will be   313.15/303.15 * 2 atm = 2.066 atm

Answer:

1.55

Explanation:

that it is the standard refractive index.

Explanation:

acceleration is the Changing of throut per unit time ....

and in uniform motion .....

in that the speed of an object is uniform means same

The kid's speed at the bottom of the slide is 8 m/s.

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Answer:

the maximum height reached by the marble is 11.84 m.

Explanation:

Given;

mass of the marble, m = 0.02 kg

extension of the string, x = 0.08 m

force applied to the string, F = 58 N

Apply the principle of conservation of energy;

elastic potential energy = gravitational potential energy

¹/₂fx = mgh

\(h = \frac{Fx}{2mg} \\\\h = \frac{58 \ \times \ 0.08}{2 \ \times \ 0.02 \ \times \ 9.8} \\\\h = 11.84 \ m\)

Therefore, the maximum height reached by the marble is 11.84 m.

The mass with greater kinetic energy is the 4 kg mass.

Mass is a measure of the amount of matter in a given object. It is usually measured in kilograms (kg) or grams (g). Mass is different from weight, which is a measure of the force of gravity on an object. Mass is an intrinsic property of an object, which means it doesn't change depending on where it is located.

Kinetic energy is calculated using the equation KE = 1/2mv2, where m is the mass and v is the velocity. Since the two masses have the same linear momentum, then the velocity of the 4 kg mass must be greater than the velocity of the 3 kg mass. This means that the 4 kg mass has a greater kinetic energy because it has a greater mass and a greater velocity. Therefore, the 4 kg mass has a greater kinetic energy.

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two masses have the same linear momentum. one mass is 3 kg and the other is 4 kg. The mass with greater kinetic energy is the 4 kg mass.

Mass is a measure of the amount of matter in a given object. It is usually measured in kilograms (kg) or grams (g). Mass is different from weight, which is a measure of the force of gravity on an object. Mass is an intrinsic property of an object, which means it doesn't change depending on where it is located.

Kinetic energy is calculated using the equation

K.E. = 1/2mv²,

where m is the mass and

v is the velocity.

Since the two masses have the same linear momentum, then the velocity of the 4 kg mass must be greater than the velocity of the 3 kg mass.

This means that the 4 kg mass has a greater kinetic energy because it has a greater mass and a greater velocity.

Therefore, the 4 kg mass has a greater kinetic energy.

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Answer:

Ok I’m not pretty sure but I think it’s C but look for more answers first before you put C  because I don’t want you to get it wrong. :)

Explanation:

Answer:

i think the answer is The nonmetal takes up more space.

Explanation:

i hope this helps

Given,

Mass of the sample, m=47 g= 0.047 kg

The initial temperature, T₁=80 °F=299.8 K

The final temperature of the sample, T₂=149 °F=338.2 K

Therefore the total raise in the temperature,

The specific heat capacity of the aluminum, c=0.903 J/(g · °C)= 903 J/(kg · K)

The heat required to raise the temperature of a sample by a temperature of ΔT is given by,

On substituting the known values in the above equation,

Therefore the heat required to raise the temperature of the sample from 80 °F to 149 °F is 1629.7 J

The intermolecular force is the closest representation to the interaction between the balloon and the water is Dipole-Dipole interaction.

What is  intermolecular force?

The intermolecular force is the force of attraction between atoms, molecules, and ions when they are placed close to each other.

This force denotes the miscibility of polar solvents and their interacting characteristics like melting points and boiling points.

Thus, the intermolecular force is the closest representation to the interaction between the balloon and the water is Dipole-Dipole interaction.

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Potential Energy - (Measured in Joules) - Potential energy is the energy that is stored in an object due to its position relative to some zero position.

Mass - (Measured in Kilograms) - Mass is the amount of matter in a body, regardless of its volume or the forces acting on it.

Acceleration Due to Gravity - (Measured in Meter/Square Second) - Acceleration due to gravity is the acceleration gained by an object due to the gravitational force.

Height - (Measured in Meters) - Height is the distance between the lowest and highest points of a standing person/shape/object.

Data:

m = 140 kg

h = 10 m

g = 9.8 m/s²

Ep = ?

The formula to calculate potential energy:

Ep = m * g * h

We clear, but it is not necessary, since we want to calculate the potential energy.

The reason why it is given in Joules is because N * m, are units of Joules, and N = Kg * m/s^2. It is the ratio of the Joules.

The potential energy of the body of mass m = 140 kilograms and located at height h = 10 meters is equal to 13720 Joules.

Answer:

C. Distance 90 feet Displacement 0 feet

When Bob jumps on the cart, there is no longer any relative motion between them.

Therefore, the coefficient of restitution is \(0\).

Collision occurs properly Inelastic.

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