What galaxy type is full of gas and dust?

Answer:

270 s or 4.5 min

Explanation:

First find the amount of heat needed:

q = mCΔT

q = (1.5 kg) (4200 J/kg/K) (100 − 15) K

q = 535,500 J

q = 535.5 kJ

Power is energy per time.

P = E / t

2 kW = 535.5 kJ / t

t = 270 s

Answer: The battery in circuit 3 would run out more quickly when the switches are closed because the two bulbs are brighter, which means the battery is providing more energy to that circuit.

Explanation: Answer from plato

The labels to be matched with the indicated elements of a meridian diagram drawn for an observer at a latitude of 60°N are given below Explanation:

Geographical north pole:

B) True north direction It is represented by TN and is the direction towards the North Pole. It is shown as a straight line in the figure.

C) Magnetic north direction It is represented by MN and is the direction towards which a magnetic compass points in the Arctic region.

D) Magnetic declination It is represented by MD and is the angle between the direction of magnetic north and true north. It is shown by the angle between TN and MN.

E) Observer's meridian It is represented by OM and is the great circle passing through the observer's zenith and the geographical north and south poles. It is shown as a curved line passing through N, Z, and S.F) Zenith direction It is represented by Z and is the point vertically above the observer on the celestial sphere. It is shown as a dot on the observer's meridian at the top.

G) South direction It is represented by S and is the direction towards the geographical south pole. It is shown as a straight line in the figure.

What is an element and give an example? the answer to this question is elements or elements are atoms with the same number of protons in their atomic nuclei, for example hydrogen and barium. Discussion A chemical element is a species of atoms that have the same number of protons in their atomic nuclei (that is, the same atomic number, or Z). What is another name for an element? Parts, Members, Composition, Components, Constituents, Points, Items, Molecules, Particles, Elements, Factors, Substances, Units, Elements, Nutrients.

Learn More About Elements at https://brainly.com/question/20096027

#SPJ11

If F = 37 N, the static frictional force between the block and the table and the minimum force required to move it must be equal.

It is the force that regulates itself. The value of static friction varies from zero to the smallest force required to initiate motion. The formula for determining static friction is as follows: Normal Force divided by the static friction coefficient is static friction.

Although the maximum static friction will rise, the frictional force will always be the same as the weight in mg because friction cannot accelerate an object. Because FrN can take any value less than N to balance the weight, this is the case.

To know more about static frictional visit :-

https://brainly.com/question/13000653

#SPJ1

When the current in a straight wire begins to rapidly drop to zero, the change in the magnetic field around the wire will induce an electromotive force (EMF) in any nearby conductor, such as a conductive loop positioned above the wire.

The direction of the induced current in the loop can be determined by Lenz's law, which states that the direction of the induced current is such that it opposes the change that produced it.

In this case, the rapid decrease in current in the wire means that the induced current in the loop will create a magnetic field that opposes the decreasing magnetic field from the wire.

Therefore, the direction of the induced current in the loop will be such that it creates a magnetic field directed in a clockwise direction when viewed from above, which will oppose the original counterclockwise magnetic field from the straight wire.

To know more about the electromotive force refer here :

https://brainly.com/question/24182555#

#SPJ11

The upward force the water will exert on the duct is 3.463kN.

Here we have to find the buoyancy force:

Buoyancy force:

The buoyant force is the upward force exerted on an object wholly or partly immersed in a fluid. This upward force is also called Upthrust. Due to the buoyant force, a body submerged partially or fully in a fluid appears to lose its weight, i.e. appears to be lighter.

Formula to calculate buoyancy forces:

B = ρgV

ρ= fluid density

g = acceleration due to gravity

V = fluid volume

V = πr²L

So;

B = ρgπr²L

Given data:

g = 9.8 m/s²

r = 15 cm = 0.15m

L = 20m

ρ = 1000

B = 1000× 9.8 × 22/7 ( 0.15/2)² × 20

  = 3.465kN

Therefore the upward force is 3.465kN.

To know more about the buoyancy force refer to the link given below:

https://brainly.com/question/12788506

#SPJ4

the electric field is more than the threshold value and the capacitor will experience dielectric breakdown.

1. Given values are,
side length of metal plates, a = 3 cm and b = 6 cm
distance between the plates, d = 2.36 cm
voltage, V = 110 V
dielectric constant of water, k = 80.4
dielectric constant of new material, k2 = 3.75
a) To calculate the capacitance of capacitor, the formula is, C=εA/d  ……………… (1)
where A = area of plate, ε = permittivity, and d = separation distance between two plates.
We know that the permittivity of vacuum is given as, ε0 = 8.854 x 10^-12 F/m
The capacitance of capacitor can be expressed as,
C1 = ε0 (kA/d) …………….. (2)
where, ε0 = permittivity of vacuum, k = dielectric constant and A = area of plate.
Substituting the given values in equation (2),
C1 = 8.854 x 10^-12 x 80.4 x (0.03 x 0.06)/0.0236
C1 = 0.000132 F
Therefore, the capacitance of capacitor is 0.000132 F.

b) To calculate the new capacitance, the formula is given as,
C2 = k2ε0A/d ……………… (3)
where k2 is the dielectric constant of new material.
Substituting the given values in equation (3),
C2 = 3.75 x 8.854 x 10^-12 x (0.03 x 0.06)/0.0236
C2 = 0.000263 F
Therefore, the new capacitance is 0.000263 F.

c) The new voltage can be calculated as,
V2 = V1(C1/C2) …………… (4)
Substituting the given values in equation (4),
V2 = 110 (0.000132/0.000263)
V2 = 55 V
Therefore, the new voltage is 55 V.

d) The charge on each plate is given as,
Q = CV ………….. (5)
Substituting the given values in equation (5),
Q = 0.000132 x 110
Q = 0.0145 C
Therefore, the charge on each plate is 0.0145 C.

2. Given values are,
capacitance, C = 3.23 µF
area of plate, A = 6.35 mm^2
separation distance between two plates, d = ?
new capacitance, C2 = 5.63 mF
new dielectric constant, k2 = ?
voltage, V = 110 V
electric field between two plates, E = 8.99 x 10^4 N/C
working voltage, Vw = 63 V

a) The separation distance between two plates can be calculated as,
C1/C2 = d2/d1  …………….. (6)
where d1 and d2 are the initial and final separation distance, respectively.
Substituting the given values in equation (6),
3.23 x 10^-6/5.63 x 10^-3 = d2/d1
d2 = 5.63 x 10^-3 x (d1/3.23 x 10^-6)
Area of plate, A = 6.35 mm^2 = 6.35 x 10^-6 m^2
The capacitance can be expressed as,
C = εA/d
d = εA/C
where ε = permittivity of dielectric material.
Therefore, substituting the given values in above equation,
d1 = ε x 6.35 x 10^-6/3.23 x 10^-6
d1 = 12.50 ε
Substituting the value of d1 in equation (6),
5.63 x 10^-3 = d2/12.50 ε
d2 = 70.38 ε
The separation distance between two plates is 70.38 ε.

b) The new dielectric constant can be calculated as,
C2 = k2ε0A/d2
k2 = C2d2/ε0A
Substituting the given values in above equation,
k2 = 5.63 x 10^-3 x 70.38 ε/(8.854 x 10^-12 x 6.35 x 10^-6)
k2 = 3.95
Therefore, the new dielectric constant is 3.95.

c) The new voltage can be calculated as,
V2 = V1(C1/C2)
Substituting the given values in above equation,
V2 = 110(3.23 x 10^-6/5.63 x 10^-3)
V2 = 0.063 V
Therefore, the new voltage is 0.063 V.

d) The electric field can be expressed as,
E = V/d
d = V/E
Substituting the given values in above equation,
d = 63/8.99 x 10^4
d = 7.01 x 10^-4 m
The voltage, V = 110 V > working voltage, Vw = 63 V

Learn more about electric field here :-

https://brainly.com/question/11482745

#SPJ11

Answer: When a crate slides down a ramp at a constant speed, it means that the net force acting on the crate is zero. In this case, the force of gravity acting downward is balanced by the force of friction acting upward along the ramp. The work done by friction in this scenario converts mechanical energy into thermal energy, resulting in an increase in thermal energy.

To calculate the amount of thermal energy created, we need to determine the work done by friction. The work done by friction can be calculated using the formula:

Work = Force × Distance × Cosine of the angle between the force and the displacement

In this case, the force of friction is equal to the force of gravity component parallel to the ramp, which can be calculated as:

Force of gravity parallel to the ramp = Weight of the crate × Sin(θ)

where θ is the angle of the ramp (31°) and the weight of the crate is equal to its mass multiplied by the acceleration due to gravity.

Weight of the crate = mass × acceleration due to gravity

Once we calculate the force of friction, we can then determine the work done by friction using the given distance (12 m).

The thermal energy created is equal to the work done by friction. Remember that work and energy are measured in the same units (joules).

Let's calculate the thermal energy created step-by-step:

Calculate the weight of the crate:

Weight of the crate = mass × acceleration due to gravity

Calculate the force of gravity parallel to the ramp:

Force of gravity parallel to the ramp = Weight of the crate × Sin(θ)

Calculate the work done by friction:

Work = Force of friction × Distance × Cos(θ)

The thermal energy created is equal to the work done by friction.

Please provide the mass of the crate, and I can help you calculate the thermal energy created.

F=150N.

A high wind velocity is defined as quickness of motion or operation; swiftness; or speed.

The speed at which a body's position changes over time in a given direction is known as mechanics. the velocity of activity or reaction; the rate at which something occurs.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is traveling along a path. The displacement that an object or particle experiences with respect to time are expressed vectorially as velocity

(1400-1250)

150 N

F=150N

Learn more about the velocity of activity here brainly.com/question/28152399

SPJ1.

If the wavelength of light in the visible region is known, the frequency and energy are also known. The relationship between wavelength, frequency, and energy is given by the equation E = hf, where E is the energy of the light, h is Planck's constant, and f is the frequency. The correct options are b and c.

Planck's constant, denoted by h, is a fundamental constant in physics that relates the energy of a photon to its frequency. It is a constant value and does not depend on the wavelength of light. Therefore, knowing the wavelength alone does not directly provide information about Planck's constant.

Frequency, on the other hand, is the number of complete cycles of the wave that occur in one second. It is inversely proportional to wavelength, meaning that as the wavelength increases, the frequency decreases. Therefore, if the wavelength of light in the visible region is known, the frequency can be determined.

Similarly, energy is directly proportional to frequency. As the frequency increases, the energy of the light increases. So, knowing the wavelength allows us to determine the frequency, and consequently, the energy of the light.

Color, although related to the wavelength of light, is not directly determined by it. Different colors correspond to different ranges of wavelengths in the visible spectrum. Therefore, knowing the wavelength alone does not provide direct information about the color.

Therefore, b and c are correct options.

To know more about visible region, refer to the link below:

https://brainly.com/question/31595445#

#SPJ11

The potential difference across the plates remains the same (δvc) when the plates of a charged capacitor are pulled apart to a new separation of distance 2d.

When the plates of a charged capacitor are pulled apart to a new separation of distance 2d, the potential difference across the capacitor remains the same. In this case, the potential difference is given by δvc.

To understand why the potential difference remains the same, we need to consider the definition of capacitance. The capacitance (C) of a capacitor is defined as the ratio of the charge (Q) stored on the capacitor plates to the potential difference (V) across the plates. Mathematically, it can be expressed as:

C = Q/V

Since the wires and batteries are disconnected, the charge on the capacitor plates remains constant. Therefore, as the separation distance between the plates is doubled (from d to 2d), the capacitance (C) also doubles.

Now, we can use the formula for capacitance to express the potential difference (V) in terms of the initial potential difference (δvc) and the initial capacitance (C):

V = Q/C

Since the charge (Q) and the potential difference (V) remain constant, and the capacitance (C) doubles, we can substitute these values into the equation:

δvc = Q/C

Simplifying the equation, we get:

δvc = Q/(2C)

Therefore, the potential difference across the plates remains the same (δvc) when the plates of a charged capacitor are pulled apart to a new separation of distance 2d.

To know more about potential difference

https://brainly.com/question/23716417

#SPJ11

Answer:

1. 571.43m/s

2. 142.9m and 342.9m

Explanation:

1.Take the difference in time.

1.2-0.7=0.7 seconds

Take the distance between them and divide with differnce in time.

400÷0.7=571.43 seconds.

2.Take the time of the two men and divide by two.

0.5÷2= 0.25 secs

1.2÷2= 0.6 secs

multiply each with the velocity.

0.25×571.43=142.9m

0.6×571.43=342.9m

Answer:

C

Explanation:

Free fall is the motion of an object in a gravitational field, where gravity is the only force acting upon it. It is different from movement in the y-direction because in free fall, the object's speed and direction of motion is constantly changing, whereas in the y-direction the object moves at a constant speed. It is also different from movement in the x-direction because the object experiences no acceleration in the x-direction. Examples of free fall include an apple falling from a tree, or a person skydiving from an airplane.

Free fall refers to the motion of an object that is falling due to gravity with no other forces acting on it except for the force of gravity. The movement in the y-direction refers to the vertical movement of an object. Movement in the x-direction refers to the horizontal movement of an object. The following are the differences between free fall and movement in the y and x directions.

Free fall vs movement in y-direction

In free fall, the object falls freely with no other force acting on it except gravity. However, in the movement in y-direction, the object can either be rising, falling, or staying still due to the presence of other forces like air resistance or thrust. For instance, when a ball is thrown into the air, it moves in the y-direction, but eventually, it stops rising and starts falling due to the force of gravity.

Free fall vs movement in x-direction

In free fall, the object falls vertically with no horizontal movement. However, in movement in the x-direction, the object moves horizontally with no vertical movement. For example, when a ball is thrown horizontally, it moves in the x-direction but does not experience any vertical movement.  

Examples

A few examples of free fall are an apple falling from a tree, a skydiver falling from a plane, and a stone falling from a cliff.

A few examples of movement in the y-direction are an airplane taking off, a rocket launching into space, and a ball thrown into the air.

A few examples of movement in the x-direction are a car moving along a straight road, a roller coaster moving along a straight track, and a person walking in a straight line.

For more such questions on Free fall.

https://brainly.com/question/13299152#

#SPJ11

Answer:

B- He is correct. Evaporation is a physical change, but dissolving salt in water is a chemical change. The change in mass is evidence that a chemical change occurred.

Explanation: Dissolving Salt in water is a Chemical Change, Because the Salt arrangement is different in solid state than dissolved in water. As we can see in the image below, once the Salt is dissolved, it is separated into its ions, Na+ and Cl- Now, The evaporation process is a physical change, because the water doesn´t change its configuration H20 and it only changes its form, as we can see in the image below.

Answer:

B) He is correct. Evaporation is a physical change, but dissolving salt in water is a chemical change. The change in mass is evidence that a chemical change occurred.

Explanation:

hope this helps!! :)

The potential energy  and kinetic energy of the bowling ball are 2,205 J and 37.5 J respectively.

The bowling ball at the given position and speed possess gravitational potential energy and kinetic energy.

The potential energy  and kinetic energy of the bowling ball is calculated as follows;

P.E = mgh

where;

P.E =  (3 x 9.8 x 75 )

P.E = 2,205 J

The kinetic energy of the bowling ball is calculated as;

K.E = ¹/₂ mv²

where;

K.E = ¹/₂ ( 3 ) x (5²)

K.E = 37.5 J

Learn more about potential energy here: brainly.com/question/1242059

#SPJ1

Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.

Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.

The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.

Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

To learn more about Smog, refer to the link:

https://brainly.com/question/15728274

#SPJ1

Answer:

a.200 Newtons

Explanation:

Given the following data;

Mass = 20kg

Acceleration = 10m/s²

To find the force;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

\( F = ma\)

Where;

F represents force.

m represents the mass of an object.

a represents acceleration.

Substituting into the equation, we have

\( Force = 20 * 10 \)

Force = 200 Newton.

The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts. The fault labeled 'E' cuts through all three sedimentary rock layers (A, B, and C) and also cuts through the intrusion (D). So the fault must be the youngest formation that is seen.

- BRAINLIEST answerer

Answer: The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts through. The fault cuts through all three sedimentary rock layers (A, B, and C) and also the intrusion (D). So the fault must be the youngest feature.

Answer:

Explanation:

so a mechanical wave transfers energy through a medium but unlike other waves that move through very long distances

the distance of the mechanical wave is different

Answer:

food chain is a process of how food is transported to the plant and then to the animal that eats the animal. there are primary, secondary, and tertiary and then decompose.

Explanation:

plz mark my answer as the brainliest

Answer:

A hierarchical series of organisms each dependent on the next as a source of food.

Explanation:

Hope this helps!! plz mark brainliest-Lily ^_^ ( food chain also known as the Circle Of Life)

Answer:

time

Explanation:

power = work done ÷ time

The correct answer is option C.

Two electromagnetic waves are traveling through a material. Wave 1 has a maximum electric field strength that is three times the maximum field strength of wave 2. The average intensity of Wave 1 is nine times the intensity of Wave 2.

By comparing the two electromagnetic waves, we get:

Maximum Electric Field Strength of Wave(1) = 3 x Maximum Electric Field Strength of Wave (2), i.e.

\(E_{1}\)  = 3 x \(E_{2}\)

Now comparing the average intensities of the two waves. we get \(\frac{I1}{I2}\)

The average intensity of electromagnetic wave 1 can be expressed as:

\(I_{1}\) = \(\frac{1}{2}\) x ε0 x  \(E1^{2}\) x c ------- (1)

Now, the average intensity of the electro-magnetic wave 2 can be expressed as:

\(I_{2}\)  =  \(\frac{1}{2}\) x ε0 x  \(E2^{2}\)  x c -----(2)

Now comparing equations 1 and 2 we get.

\(\frac{I1}{I2}\)  =   \(E1^{2}\) /  \(E2^{2}\)

\(\frac{I1}{I2}\)  =  ( 3 x \(E2)^{2}\)/  \(E2^{2}\)

\(\frac{I1}{I2}\)  = 9

Thus, we can say that the average intensity of Wave 1 is nine times the intensity of Wave 2.

If you need to learn more about electromagnetic waves click here:

https://brainly.com/question/3871471

#SPJ4

The complete question is:

Two electromagnetic waves are traveling through a material. Wave 1 has a maximum electric field strength that is three times the maximum field strength of Wave 2. How do the average intensities of the waves compare?

a. The average intensity of Wave 1 is three times the intensity of Wave 2.

b. The average intensity of Wave 2 is three times the intensity of Wave 1.

c. The average intensity of Wave 1 is nine times the intensity of Wave 2.

d. The average intensity of Wave 2 is nine times the intensity of Wave 1.

Answer:

2,

Explanation:

Because one eye can see small area, having two will give your eyesight a bigger AoE (wider area)

Explanation:

the net displacement of an object is

X-coordinate is

16.

Y-coordinate is

21-26=-5.

The magnitude of displacement is

d=√(〖16〗^2+(-5)^2 )=17 blocks.

The direction is

θ=tan^(-1)⁡〖5/16〗=17° east of south.

therefore, I think it helps you.

A boy plays solitary seesaw by placing the seesaw's fulcrum one-eighth the distance from where he sits at one end. The boy weighs more.

The middle of the lever, known as the fulcrum or pivot point, remains stationary. You are trying to lift someone, therefore at one end of the resistance, or downward force, is their weight. The person using force on the other end of the seesaw is doing the work. Typically, a board that is balanced in the middle of a seesaw is found in playgrounds. Each end is occupied by a person who alternately presses their feet against the floor to raise their side into the air. The grips of seesaws used in playgrounds are typically there for riders to hold onto while facing each other. Children can practice balancing with each other on seesaws, which are a traditional component of any playground. Seesaws and spring riders are two examples of playground equipment that provides a rocking action. By holding onto grips, kids learn to control their balance and coordination while also developing their fine motor abilities. A child's sense of balance can be improved with the aid of rocking motion.

Learn more about seesaw here:

https://brainly.com/question/18994340

#SPJ4

White clothing keeps our bodies cool in the summer because it reflects most of the sun's heat and absorbs very little of it.

Dark color is the best retain er of intensity, so dark garments assimilate the vast majority of the intensity while white garments mirror all the light arriving at on them. This makes the white garments cooler than dark.

A white object is white because it reflects white light, which is the sum of all the colors that can be seen. This implies that a white shirt (or jeans) will mirror the vast majority of the light and not get hot.

A black object becomes warm because it converts all wavelengths of light into heat. Because a white object reflects all wavelengths of light, the light does not become heat and the object's temperature does not significantly rise.

Learn more about Temperature effect:

brainly.com/question/30459668

#SPJ1

Answer:

The graph's form would be ascending. The stability of the graph increases along with the mL's. The graph becomes balanced as a result of the volume and mass being equal. Thus, it resulting in positive.

Explanation:

I already paraphrased it so you don't have to. Btw, this is for Chem/plato.

Answer:

Velocidad final, V = 8 m/s

Explanation:

Dados los siguientes datos;

Velocidad inicial, u = 4 m/s

Aceleración, a = 2 m/s²

Tiempo, t = 2 segundos

Para encontrar la velocidad final (v), usaríamos la primera ecuación de movimiento;

V = u + at

Sustituyendo en la fórmula, tenemos;

V = 4 + 2*2

V = 4 + 4

Velocidad final, V = 8 m/s