If a 12 V battery is connected to a light bulb with a resistance of 2 ohms, how much current will flow through the light bulb?
Group of answer choices

A. 24 Watts

B. 0.5 amps

C. 6 amps

D. 6 ohms

Answer:

Give me some time okkkk

When the Earth was primarily liquid, it separated into layers. The density of Earth's different layers may be predicted. For instance, it is assumed that the outermost layer, or crust, is less dense than the inner layers.

The Earth's crust is mostly composed of silicates (such as quartz, feldspar, and mica) and rocks, which are less dense than the mantle, core, or outer core.

The mantle is composed of solid rock, which is denser than the Earth's crust.

The core is the most dense layer, and it is composed of a liquid outer core and a solid inner core.

Most of the Earth's layers are composed of different types of rock and minerals.

The layers were formed from the molten material that cooled and solidified.

The Earth's layers are divided into four groups, or spheres, that represent different levels of density.

The lithosphere is the outermost layer, which includes the crust and upper mantle.

The asthenosphere is the soft layer beneath the lithosphere.

The mantle is a solid layer that surrounds the core.

The core is the Earth's central layer, consisting of a liquid outer core and a solid inner core.

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When the socks are rubbed on the carpet, loosely held electrons are transferred from the carpet to the socks.

Electrons move from one body to another when two distinct insulating materials are rubbed against one another. This phenomenon of charge transfer is known as is known as charging by friction.

Electrons are the carriers of electric charges. We transfer electrons from the carpet to the wool socks as we rub them against the carpet.

The additional electrons then move from our body to the metal, creating a spark, when we touch a doorknob made of metal, for instance.

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Answer:

Alright, so mass is a property of a physical body. During physical changes, such as acceleration, force, etc, the mass stays the same since we are not affecting its physical shape, just where it is physics wise. So yeah mass is conserved during a physical change.

Explanation:

Hopefully this helped, if not HMU and I will get u a better answer

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In a physical change the mass remains the same before and after the process, then it is said as the mass is conserved and mass is only conserved in the isolated system.

A system that is isolated from its environment is one that does not communicate with it. As a result, no matter what changes or chemical reactions take place in that isolated system, the mass will remain constant; even if the final state may differ from the initial state, there can be no more or less mass than there was before the change or reaction.

The understanding that substances do not actually vanish as a result of a reaction, despite what might appear to be the case, but rather change into another material of equal mass, was made possible by the law of conservation of mass, which was essential to the development of chemistry.

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Answer:

The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.

Explanation:

The magnitude of the induced electric field at a point near the center of the solenoid and 2 cm from the axis is approximately 0.000589 T*m²/s.

The magnitude of the induced electric field at a point near the center of the solenoid can be calculated using the formula for the magnetic field inside a solenoid. The induced electric field is directly proportional to the rate of change of the magnetic field with respect to time. First, let's calculate the magnetic field at the given point near the center of the solenoid. The formula for the magnetic field inside a solenoid is given by B = μ₀ * n * I, where B is the magnetic field, μ₀ is the permeability of free space (4π * 10⁻⁷ T*m/A), n is the number of turns per unit length (500 turns/m), and I is the current (60 A/s).

The magnetic field at the given point can be calculated as follows:
B = μ₀ * n * I = (4π * 10⁻⁷ T*m/A) * (500 turns/m) * (60 A/s) = 0.075 T
Next, we can calculate the induced electric field at the given point using the formula E = -dΦ/dt, where E is the induced electric field and Φ is the magnetic flux. The magnetic flux is given by Φ = B * A, where A is the area perpendicular to the magnetic field.

The area at the given point can be calculated as follows:
A = π * r² = π * (0.05 m)² = 0.00785 m²
Now, we can calculate the induced electric field:
E = -dΦ/dt = -(d(B * A)/dt) = -A * dB/dt = - (0.00785 m²) * (0.075 T/s) = -0.000589 T*m²/s

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The tension in the cable is 156.8 N.

Weight of the sign board is mass × acceleration due to gravity

= 8 × 9.8 = 78.4 N

If T is the tension in the string, T× cos 60° is the vertical component of it.

Thus, we can conclude that the tension in the cable is 156.8 N.

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: A vendor hangs an 8.0 kg sign in front of his shop with a cable held away from the building by lightweight pole. The pole is free to pivot about the end where it touches the wall. What is the tension in the cable?

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A kettle was tested for its energy efficiency. Its power rating was 900 W. Over the course of 4 minutes and 30 seconds, its useful energy output was 0.05 kWh

Energy is referred to by scientists as the capacity for work. People have figured out how to transform energy from one form to another and then use it to accomplish tasks, making modern civilization possible.

Thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy, and gravitational energy are among the several types of energy.

The ability to perform tasks is referred to as energy. Formula. Potential energy is the energy that an object has stored because of its position and height, and it may be calculated using the following formula: P.E. equals mgh.

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The most amount of work is done in  Slowing down from 200 km/hr to 180 km/hr.

A force must be applied in order for work to be completed, and there must also be motion or displacement in the force's direction. The amount of force multiplied by the distance moved in the force's direction is known as the work done by a force acting on an item. Work has no direction and only magnitude. Work is a scalar quantity as a result.

Let the mass of the car be m.

Then work done in slowing down from 70 km/hr to rest = 1/2×m×70² = 4900m/2.

work done in slowing down from 100 km/hr to 70 km/hr =  1/2×m×(100² - 70²) = 5100 m/2.

work done in slowing down  from 200 km/hr to 180 km/hr = 1/2×m×(180² - 100²) = 22400m/2.

Hence, the most amount of work is done in  Slowing down from 200 km/hr to 180 km/hr.

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The metal with the lowest moisture content should also have the lowest impact and consequently be the one that bends the easiest. Material B is that.

A push is the modification of an object's condition brought on by its surroundings. An item will either be at rest or in uniform motion as a result of forces. Think of a football lying still on the ground as an illustration. You must exert some effort on the ball in order to move it in any direction.

The sorts of bonds that the metal atoms form determine that boiling range of the metal. The intensity of the dispersion forces of a substance is directly related to the melting point of that substance. Therefore, the higher the boiling point of such material, the greater the intra - molecular tensions of the substance.

The metal with the maximum melting point with in periodic table is tungsten, at a temperature of 3422°C.

More energy is required to stop the binding between all these molecules as the intermolecular forces become more powerful. Because of this, rising intermolecular forces are accompanied with rising melting points.

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The complete question is-

Scientists at a metallurgic factory are testing different metals to study the strength of the electrical forces between their atoms. They determined the force needed to bend a sheet of each metal and found that metal a requires 50 n of force, metal b requires 30 n, metal c requires 70 n, and metal d requires 100 n. Which metal will have the lowest melting point?

A). A

B). B

C). C

D). D

When the net magnetic field is zero at a certain point, a neutral point is created. 

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Answer:

As altitude increases and atmospheric pressure decreases, the boiling point of water decreases.

The composition of the sun by mass of hydrogen drops, but the amount of helium grows because helium is heavier than hydrogen.

The percentage by mass of an element in a compound is the percentage the mass of that element contributes to the total mass of the substance.

The percentage by mass of an element depends on the mass of the element.

Heavier elements in equal amounts with less dense elements have a greater percentage mass.

Since the mass of the helium atom is greater than the mass of the hydrogen atom, the Sun's composition by mass of hydrogen drops while that of helium increases.

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Okay, let's break this down step-by-step:

* There is a force of 100N acting on the body.

* The mass of the body is 20kg.

* The body accelerates from rest to a velocity of 20ms^-1.

To calculate the distance over which this force acts:

1) Calculate the acceleration: Force / Mass = 100N / 20kg = 5ms^-2

2) Calculate the displacement (distance traveled) using: displacement = 1/2 * acceleration * time^2

Since the acceleration is constant, we can set the initial velocity to 0 and final velocity to 20ms^-1.

Then: time = (20ms^-1) / 5ms^-2 = 4s

3) Displacement = 1/2 * 5ms^-2 * 4s^2 = 20m

Therefore, the force of 100N acts on the body over a distance of 20m to accelerate it from rest to 20ms^-1.

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Due to the greater disorder of molecules and the increase in heat energy associated with the liquid state, 1 kg of liquid iron would have greater entropy compared to 1 kg of solid iron.

The kilogram of liquid iron would have greater entropy compared to the kilogram of solid iron. Entropy is a measure of the disorder or randomness in a system.

In the case of iron, when it transitions from a solid to a liquid state, the arrangement of its molecules becomes more disordered.

In the solid state, the iron atoms are arranged in a regular lattice structure, which is more ordered compared to the random arrangement of molecules in the liquid state. The increased disorder in the liquid state contributes to higher entropy.

Additionally, as you mentioned, in order to transform solid iron into liquid iron, heat is added. This increase in heat energy also contributes to higher entropy since it leads to greater molecular motion and randomness within the system.

Therefore, due to the greater disorder of molecules and the increase in heat energy associated with the liquid state, 1 kg of liquid iron would have greater entropy compared to 1 kg of solid iron.

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To enter orbit, a spacecraft leaving the Earth's surface must travel at least 11 kilometers (7 miles) per second, or more than 40,000 kilometers per hour (25,000 miles per hour). One of the most difficult challenges in space travel is achieving escape velocity.

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The total zoom available on a camera is determined by digital zoom added to optical zoom.

Optical zoom refers to the physical movement of the lens elements to magnify the image, while digital zoom is a software-based feature that enlarges the center portion of the image by cropping and interpolating the pixels.

While optical zoom produces higher quality images with no loss of detail, digital zoom can result in a decrease in image quality due to pixelation and loss of resolution.

The total zoom available on a camera is determined by adding the maximum magnification of the optical zoom to the maximum magnification of the digital zoom.

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The diameter of the object is approximately is 11.33 cm.

To determine the object location for which the size of the reflected image is three-fourths the object's size, we can use the concept of spherical mirrors and the mirror equation.

The mirror equation is given by:

1/f = 1/do + 1/di

Where:

f is the focal length of the mirror

do is the object distance (distance of the object from the mirror)

di is the image distance (distance of the image from the mirror)

In this case, the mirror is a spherical mirror, and since the size of the reflected image is specified, we can use the magnification equation:

m = -di/do

Where:

m is the magnification

di and do have the same sign when the image is upright and opposite signs when the image is inverted

Let's solve for the object distance (do) when the magnification (m) is three-fourths (3/4) and the diameter of the object (which is the same as the diameter of the image) is 8.50 cm.

We know that the diameter of the image (Di) is related to the diameter of the object (Do) by the equation:

Di = m * Do

Given that Di = 8.50 cm and m = 3/4, we can substitute these values to find the diameter of the object:

8.50 cm = (3/4) * Do

Now, let's solve for Do:

Do = (8.50 cm) / (3/4)

Do = (8.50 cm) * (4/3)

Do ≈ 11.33 cm

So, the diameter of the object is approximately 11.33 cm.

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To estimate the amount of radiation absorbed by a patient, we can use the formula:

Absorbed dose (in rad) = Energy absorbed (in J) / Mass of the patient (in kg)

Given that the patient's mass is 75.0 kg and the energy absorbed by the patient is 2.00 J, we can substitute these values into the formula:

Absorbed dose = 2.00 J / 75.0 kg = 0.0267 J/kg

Since 1 rad is equal to 0.01 J/kg, we can convert the absorbed dose to rads:

Absorbed dose = 0.0267 J/kg × (1 rad / 0.01 J/kg) = 2.67 rad

Therefore, the estimated amount of radiation absorbed by the patient is 2.67 rad.

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Answer:

Answer: Weight = 520 N

Explanation:

Weight = mass × acceleration

\({ \rm{weight = 52 \times 10}} \\ \\ { \rm{w = 520 \: newtons}}\)

Answer:

520 N

Explanation:

weight is 520 N.....

Answer:

ANSWER

Initial Velocity (u) = 10 m/sec

Acceleration (a) = 5 m/sec

2

Distance (s) = 30 m

Final velocity (v) = ??

Using Newton's Third law of Motion,

v

2

=u

2

+2as

v

2

=10

2

+2×5×30

v

2

=100+300

v

2

=400

v =

400

v = 20 m/sec

_____________________________

ANSWER =

FINAL VELOCITY = 20 m/sec

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Explanation:

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Water flows at 1.7 m/sInternal diameters of the hose = 0.84 cm, Exit velocity of the water from the nozzle = 3.9 m/sTo calculate the nozzle's diameter in cm.

We can use the continuity equation to find the nozzle's diameter as the water is incompressible. According to the continuity equation, the mass flow rate is constant.ρAV = constant, Where, ρ = density of water = 1000 kg/m³A = area of the pipe or hose V = velocity of the waterLet's use the above equation to find the area of the pipe and nozzle. ρAV = constant.Let's assume the density of water is constant and cancels out in the above equation.A₁V₁ = A₂V₂where, A₁ = area of the hoseA₂ = area of the nozzleV₁ = velocity of water in the hoseV₂ = velocity of water from the nozzleGiven, V₁ = 1.7 m/sA₁ = πd₁²/4where, d₁ = diameter of the hose = 0.84 cm = 0.0084 m.Let's substitute the values in the continuity equationA₁V₁ = A₂V₂πd₁²/4 × 1.7 = πd₂²/4 × 3.9π/4 × 0.0084² × 1.7 = π/4 × d₂² × 3.9d₂² = 0.0084² × 1.7/3.9d₂² = 0.0000036834d₂ = √(0.0000036834)d₂ = 0.0195 cm

Therefore, the nozzle's diameter is 0.0195 cm (approx). Answer: 0.0195 cm

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Answer:

The answer is 29 AU

Hoped I helped

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Answer:

29

Explanation:

Given :

Objects 1 and 2 attract each other with a gravitational force of 72.0 units.

To Find :

If the distance separating objects 1 and 2 is tripled then the new gravitational force will be units.

Solution :

Let, initial distance is \(r_1\) and final distance is \(r_2\).

\(r_2 = 3r_1\)

We know, gravitational force is inversely proportional to the distance between the objects. So :

\(\dfrac{G_2}{G_1}=\dfrac{r_1^2}{r_2^2}\\\\G_2 = \dfrac{G_1 \times r_1^2}{r_2^2}\\\\G_2 = \dfrac{G_1\times r_1^2}{(3r_1)^2}\\\\G_2 = \dfrac{72}{9}\\\\G _2= 8\ units\)

Therefore, new gravitational force is 8 units.

Answer:

JUST A MINUTE KAPENG MAINIT

The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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Answer:

Sedimentary rocks are deposited in layers as strata, forming a structure called bedding. Sedimentary rocks are often deposited in large structures called sedimentary basins.

Explanation:

Answer: Strata

Explanation: Strata are layers of rock, or sometimes soil. In nature, strata come in many layers. It is a term in sedimentary and historical geology; the singular is stratum. The study of strata is called stratigraphy.

Nurse instructs a pregnant patient, statement indicates that teaching has been effective is "I should drink eight glasses of water every day", option A.

Sickle cell illness (SCD) is a gathering of blood problems ordinarily acquired. The most widely recognized type is known as sickle cell weakness. The oxygen-carrying protein in red blood cells known as haemoglobin becomes abnormal as a result. Under certain conditions, this causes the shape to be rigid and sickle-like. Sickle cell disease symptoms typically appear between the ages of 5 and 6 months. Sickle cell crises, pain attacks, anemia, hand and foot swelling, bacterial infections, and strokes are among the potential health issues that may arise. Long haul agony might create as individuals progress in years. In the developed world, life expectancy ranges from 40 to 60 years.

Sickle cell infection happens when an individual acquires two strange duplicates of the β-globin quality (HBB) that makes hemoglobin, one from each parent. This quality happens in chromosome 11. A few subtypes exist, contingent upon the specific transformation in every hemoglobin quality. Changes in temperature, stress, dehydration, and being at a high altitude can all start an attack. A sickle cell trait is a condition in which a single abnormal copy does not typically cause symptoms. These people are also known as carriers. A blood test is used to make a diagnosis, and in some countries, the disease is tested on every new born baby. Pregnancy is another time when diagnosis is possible.

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Complete question:

The nurse instructs a pregnant patient with sickle cell anemia on ways to prevent a crisis. Which patient statement indicates that teaching has been effective?

1- "I should drink eight glasses of water every day."

2- "I should take an iron supplement every day."

3- "I should make sure I stand for at least 4 hours every day."

4- "I should avoid sitting with my legs elevated during the day."

Explanation:

mass

4

4

4

4

mass

mass

mass

4

4

4

4

4