in a convection current___.

warm fluid sinks to replace cool fluid

warm fluid is more dense, and therefore, rises

heat flows from cooler areas to warmer areas

cool fluid is more dense, and therefore, sinks​

The drag coefficient is greater than 0.25, so xl will become the new \(xm\).

Repeat the process of finding the drag coefficient and adjusting the \(xm\)until the approximate relative error falls below 2%.

The final drag coefficient should be 0.2897.

Using the bisection method, you can determine the drag coefficient needed so that a 95kg bungee jumper has a velocity of 46m/s after 9s of free fall.

The acceleration of gravity is 9.81 m/s2.

Start with initial guesses of xl= 0.2 and \(xu\)= 0.3 and iterate until the approximate relative error falls below 2%.

Begin by finding the midpoint between \(xl\) and \(xu\), which will be the first approximation:

\(xm = 0.2 + (0.3-0.2)/2 = 0.25\)

Next, calculate the drag coefficient using the equation:

Drag coefficient = (mass*acceleration of gravity) / (velocity2 - (2*initial velocity*acceleration of gravity*time)).

Drag coefficient = \((95kg*9.81m/s2) / (462 - (2*0*9.81m/s2*9s)\)

= 0.281225

If the calculated drag coefficient is less than \(xm\),

then \(xu\)becomes the new \(xm\),

and a new midpoint is calculated.

If the drag coefficient is greater than \(xm\),

then xl becomes the new \(xm\), and a new midpoint is calculated.

Repeat the process until the approximate relative error falls below 2%.

For the given example, the drag coefficient is greater than 0.25, so xl will become the new \(xm\).

Therefore, the new midpoint is:

\(xm = 0.2 + (0.25-0.2)/2 = 0.225\)

For similar question on drag coefficient.

https://brainly.com/question/30945138

#SPJ11

Energy stored in the electric field between the tubes is 5.85 x 10-11 J.

Electric field

The electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge. The electric field is radially outward from a positive charge and radially in toward a negative point charge.

The electric field is the amount of electric force per charge and the electric force on a charge at some point in space is the amount of charge times the electric field at that point in space. So recapping, electric charges create electric fields.

In inner tubes.

A1 = \pi ro2 = (3.14) [(0.03 m) / 2] 2

A1 = (3.14) (0.000225 m2) (0.000225 m2)

A1 = 0.0007065 m2

In outer tubes.

A2 = \pi ri2 = (3.14) (3.14) [(0.04 m) / 2] 2

A2 = (3.14) (0.0004 m2) (0.0004 m2)

A2 = 0.001256 m2

The conducting tubes' total area is provided by -

A = (0.0007065 m2) + (0.001256 m2) (0.001256 m2)

A = 0.0019625 m2

A formula that yields

(8.85 x 10-12 C2/Nm2) (0.0019625 m2)/d = C = varepsilon0 A (0.3 m)

C = 5.78 x 10-14 F

The energy stored in the electric field between the tubes when these are coupled to a 45-volt battery is provided as:

U = (1/2) C V2 = (0.5) (5.78 x 10-14 F) (45 V)

U = 5852.2 x 10-14 J

U = 5.85 x 10-11 J

Energy stored in the electric field between the tubes is 5.85 x 10-11 J.

To learn more about Electric Field visit:

brainly.com/question/8971780

#SPJ4

Answer:

± .55 kg

Explanation:

55  * 1% = .55 kg

± .55 kg

Answer:

20 Watts

Explanation:

use Ohm’s law:

Power = Current x Voltage

substitute variables:

P = 2 Amps x 10 Volts

P = 20 Watts

hope that helps :)

Answer:

Explanation:

To determine the power we can use this equation from Ohm's Law

\(\sf Power=Voltage \cdot Current\\P=VI\)

In this example we are given

\(\sf Voltage=10\\Current=2\)

\(\sf Power=10 \cdot 2\)

\(\sf Power =20\) W

Attached is a picture with all the different equations derived from Ohm's Law.

Learn more about Ohm's Law here

https://brainly.com/question/19892453

Answer:

kinetic energy

Explanation:

it is most common

Answer:

The difference between reversible and irreversible is reversible can be changed but irreversible can not.

The magnitude of the magnetic field at the center of a 63-turn circular coil with a radius of 18.1 cm and current 3.21 A is 70.165×10⁻⁵T.

Given information,

Number of turns, n =63

radius, r = 18.1 cm = 18.1 × 10⁻² m

current, I = 3.21 A

The field that is generated by a moving charge, or a field around a magnet, is called a Magnetic field.

S.I. unit - Tesla (T).

The Magnetic field due to the circular current-carrying coil,

B = μNI/2r

B =  (4π × 10⁻⁷×63×3.21)/18.1 × 10⁻²×2

​B = 70.165×10⁻⁵T

Hence, the magnitude of the magnetic field at the center of a 63-turn circular coil with a radius of 18.1 cm is 70.165×10⁻⁵T

To learn more about Magnetic field, here:

https://brainly.com/question/23096032

#SPJ4

Strictly speaking, more fuel is consumed by your car if the air conditioner, headlights, or even a radio is turned on. this statement is true.

Fuel economy is the opposite of fuel consumption. It is the quantity of fuel used to travel a specific distance. In the United States, it is measured in gallons for every 100 miles, while in Europe and other parts of the world, it is measured in litres for every 100 kilometres.

To determine your car's fuel consumption, divide mileage by fuel consumption. You can see here how many miles per gallon of petrol you travelled. For instance, if you filled up your tank with 12 gallons of gas and drove 335 miles before refuelling, your fuel consumption would be 27.9 mpg (335 miles / 12 gallons = 27.9 mpg).

Learn more about fuel consumption:

https://brainly.com/question/28570756

#SPJ4

The water budget equation for the Creek drainage basin is: Precipitation = Stream discharge + Evapotranspiration ± Change in storage.

To develop the water budget equation for this problem, we need to account for the inputs and outputs of water in the Creek drainage basin. The water budget equation can be expressed as,

P = Q + ET ± ΔS

P = Precipitation input (mm)

Q = Stream discharge (m³/s)

ET = Evapotranspiration (mm)

ΔS = Change in storage (mm)

First, let's convert the units of the given values,

Precipitation input (P) = 550 mm

Stream discharge (Q) = 1.8 m³/s

Now, let's determine the evapotranspiration (ET) and change in storage (ΔS) terms. However, the problem doesn't provide information about ET, so we cannot calculate it accurately. The problem doesn't provide information about ΔS, so we cannot calculate it accurately.

Given these limitations, we can write the simplified water budget equation for this problem,

550 mm = 1.8 m³/s + ET ± ΔS

Please note that without information about evapotranspiration and changes in storage, we cannot fully determine the water budget for the Creek drainage basin.

To know more about budget equations, visit,

https://brainly.com/question/32563921

#SPJ4

Explanation:

F = ma

20 N = (4 kg) a

a = 5 m/s²

Because the current flowing through both bulbs in a series connection is equal, the power P = I2R states that the 60W bulb will expend more power and so be brighter than the 40W bulb (100W bulb).

To learn more about Watt, refer to:

https://brainly.com/question/1446143

#SPJ1

Answer:

V = 0.9 m/s

Explanation:

The parameters given are:

Initial velocity U = 6.4 m/s

Time t = 0.64s

Height h = 2.05 m

To find the final velocity, let us use third equation of motion

V^2 = U^2 - 2gH

Since the ball is going upward, g will be negative

Substitute all the parameters into the formula

V^2 = 6.4^2 - 2 × 9.8 × 2.05

V^2 = 40.96 - 40.18

V^2 = 0.78

V = sqrt( 0.78)

V = 0.883 m/ s

V = 0.9 m/ s approximately

Answer:

The answer is Human beings

Answer:

Respiration

Explanation:

because the role of the respiratory system is to inhale oxygen and exhale carbon dioxide were by the cells of the body use oxygen to perform certain functions that keeps us alive and the waste products created by our body cells after they've performed these functions is regarded as carbon dioxide.

Label the rows as the electron energy levels:

The rows of the periodic table are also known as periods. There are seven periods, and each period corresponds to a particular energy level. You can label them from 1 to 7, starting from the top row.

Label the number of valence electrons in Columns 1, 2, and 13-18:

Columns 1 and 2 are the s-block elements, and they have 1 and 2 valence electrons, respectively. Columns 13-18 are the p-block elements, and they have 3 to 8 valence electrons, respectively. You can label the number of valence electrons in each column.

Label the metals, semi-metals, and non-metals using different colors:

Metals are on the left side of the periodic table, semi-metals are in the middle, and non-metals are on the right side. You can use different colors to label them without obscuring any of the information about different elements.

Label the ion charges for elements in the first 3 rows:

Elements in the first 3 rows of the periodic table have predictable ion charges. The alkali metals (Group 1) have a charge of +1, the alkaline earth metals (Group 2) have a charge of +2, and the elements in Group 13 have a charge of +3. For Groups 15, 16, and 17, the charges are -3, -2, and -1, respectively. The noble gases (Group 18) are unreactive and do not form ions. You can write these charges for each element in their respective positions.

Label the trends for atomic size, ionization energy, and electron affinity:

Atomic size generally decreases from left to right across a period and increases from top to bottom within a group. Ionization energy generally increases from left to right across a period and increases from bottom to top within a group. Electron affinity generally increases from left to right across a period and becomes less negative from top to bottom within a group. You can label these trends on your periodic table as well.

learn more about electron energy levels: https://brainly.com/question/28101665

#SPJ1

Answer:

PROCESS BY PLANTS MAKE THIER OWN FOOD WITH THE HELP OF WATER, MINERAL CHLOROPHYLL, CARBON DIOXIDE IN THE PRESENCE OF SUNLIGHT....

I HOPE IT IS HELPFUL

The ratio of the length of the spacecraft as viewed through a telescope on Earth to its length when measured after landing on Earth is approximately 0.748.

This question involves the concept of length contraction in special relativity. When an object is moving at a significant fraction of the speed of light relative to an observer, its length appears to be contracted along the direction of motion. The formula for length contraction is:

\(L' = L * \sqrt{\frac{ 1 - v^2}{c^2} }\)

where L' is the contracted length, L is the proper length (length measured when at rest), v is the relative velocity, and c is the speed of light.

In this case, the spacecraft is moving at a speed of 0.650c relative to Earth. To find the ratio of the lengths, we'll divide the contracted length (L') by the proper length (L):

Ratio = L' / L

First, we need to find L':

\(L' = L * \sqrt{(0.5775)  }\)

Now, we can find the ratio:

\(Ratio =\frac{ (L * \sqrt(0.5775))}{L}\)

\(Ratio =\frac{ (L * \sqrt{(0.5775)})}{L}\)

The L terms cancel out:

Ratio ≈ 0.748

The ratio of the length of the spacecraft as viewed through a telescope on Earth to its length when measured after landing on Earth is approximately 0.748. This means that the spacecraft appears about 74.8% of its proper length when observed from Earth at a speed of 0.650c.  

For more information on spacecraft kindly visit to

https://brainly.com/question/29969483

#SPJ11

The black body radiates approximately 68.6 watts of power.

To calculate the power radiated by a black body, we can use the Stefan-Boltzmann law, which states that the power radiated by a black body is proportional to the fourth power of its temperature. The equation for power radiated is given by:

P = σ * A * T^4

Where:

P is the power radiated,

σ is the Stefan-Boltzmann constant (approximately 5.67 × 10^-8 W/m^2K^4),

A is the surface area of the black body, and

T is the temperature in Kelvin.

First, we need to convert the surface area from cm² to m²:

A = 20.0 cm² = 20.0 × 10^-4 m²

Next, we substitute the values into the equation:

P = (5.67 × 10^-8 W/m^2K^4) * (20.0 × 10^-4 m²) * (5000 K)^4

Calculating this expression will give us the power radiated by the black body.

P = (5.67 × 10^-8 W/m^2K^4) * (20.0 × 10^-4 m²) * (5000^4) = approximately 179.4 Watts

Therefore, the black body radiates approximately 179.4 Watts of power.

To learn more about watts, Click here: brainly.com/question/29034284?

#SPJ11

Potential energy is stored due to its position. The 2 formulas for potential energy are PE = mgh, where PE is gravitational potential energy, and Ue = kq1q2/r, where Ue is electric potential energy.

Potential energy comes in many forms. Some of them consist of:

The energy that a body has as a result of the gravitational force acting on it is known as gravitational potential energy.

Formula:

PE = mgh,

where Where PE is Potential energy

m is the body's mass

h is height at which the body is placed above ground

g is acceleration due to gravity

The energy that a body may store due to the electron configuration is known as electric potential energy.

Formula:

UE= kq1q2/r

Where UE is the electric potential energy

k stands for Coulomb’s constant

whereas q1 and q2 stands for charges of the two separate points present in the circuit

r stands for distance of the separation.

Learn more about potential energy here:

https://brainly.com/question/24284560

#SPJ4

Answer:

Average speed = 60km/hr

Explanation:

Given the following data;

Time = 2.5 hrs

Distance = 150km

To find the average speed;

Average speed = distance/time

Substituting into the equation, we have

Average speed = 150/2.5

Average speed = 60km/hr

1) The gravitational force on particle 1 due to particle 2 can be calculated using the formula:

F→12 = \(-G(m_1m_2/r^2) * \hat u_{12}\)

Where G is the gravitational constant, r is the distance between the particles, and

ȕ→12 is the unit vector pointing from particle 1 to particle 2.

In this case, since particle 1 is fixed at the origin, we have:

r = 2.00 m

ȕ→12 = \(cos(0) \hat i + sin(0) \hat j = \hat i\)

Substituting the given values, we get:

F→12 = \((6.67 * 10^{-11} Nm^2/kg^2) * (10.0 kg) * (20.0 kg) / (2.00 m)^2 * \hat i\)

F→12 = \(3.34 nN \hat i\)

2) The gravitational force on particle 2 due to particle 1 can be calculated using the same formula as above, but with the masses and distance interchanged, and ȕ→21 pointing from particle 2 to particle 1:

F→21 =\(-G(m_2m_1/r^2) * \hat u_{21}\)

Given,

r = 2.00 m

ȕ→21 = \(cos(180^o) \hat i + sin(180^o) \hat j = -\hat i\)

Substituting the given values, we get:

F→21 = \(-(6.67 * 10^{-11} Nm^2/kg^2) * (20.0 kg) * (10.0 kg) / (2.00 m)^2 * (-\hat i)\)

F→21 \(= -3.34 nN \hat i\)

3) To find the value of θ that results in the given force F→12, we can use the components of the force in the i^ and j^ directions:

F→12 = (22.0 nN) i^ + (8.88 nN) j^

The \(\hat i\)component of the force is related to the cosine of θ, and the j^ component is related to the sine of θ:

F→12,i = F→12 · i^ = 22.0 nN

F→12,j = F→12 · j^ = 8.88 nN

Using the inverse cosine and sine functions, we can find the angle whose cosine is F→12, i divided by the magnitude of the force, and whose sine is F→12, j divided by the magnitude of the force:

θ = \(cos^{-1}\) (F→12,i / |F→12|) = \(cos^{-1}\) (22.0 nN / \(\sqrt {(22.0 nN)^2 + (8.88 nN)^2}\))

θ = 21.98°

4) To find the value of r that results in the given force F→12, we can use the magnitude of the force and the formula for the magnitude of the gravitational force between two particles:

|F→12| = \(G(m_1m_2/r^2)\)

Solving for r, we get:

r = \(\sqrt{Gm_1m_2/r^2}\) / |F→12|)

Substituting the given values, we get:

r = \(\sqrt{(6.67 * 10^-{11} Nm^2/kg^2) * (10.0 kg) * (20.0 kg)}\)/ ((22.0 nN)^2 + (8.88 nN)^2))

r = 0.75 m (rounded to two significant figures)

Learn more about gravitational force:

https://brainly.com/question/24783651

#SPJ11

Force exerted on 4kg block =  6.2 N

Force exerted on 2kg block = 4.51 N  

Forces are influences that can change the movement of an object. A force may change the velocity of an object of mass (m), i.e. accelerate it. Forces can also be referred by pushing or pulling. A force has both magnitude and direction and thus it is a vector quantity.

For the acceleration of all the boxes:

Fₙ = ma

a = Fₙ/m

a = 14/(2+3+4)

a = 1.55 m/s²

For 2 kg block:

Fₙ - F₁ = m₁ × a

14 - F₁ = 2 × 1.55

F₁ = 4.51 N

For 4 kg block:

F₂ = m₃ × a

F₂ = 4 × 1.55

F₂ = 6.2 N

To know more about force visit:

https://brainly.com/question/28869427

#SPJ4

Complete question is as follows:

Blocks with masses of 2. 0 kg, 3. 0 kg, and 4. 0 kg are lined up in a row on a frictionless table. All three are pushed forward by a 14 n force applied to the 2. 0 kg block.

How much force does the 3kg block exerted on 4 kg block?

How much force does the 3 kg block exerted on 2 kg block?

Answer:

1.989 •10^30 kg that is the aswer

Answer:

1.989 × 10^30 kg

Explanation:

yeppp

:p :p :p lol

ok is it just me or does "lol" look like a guy putting both his hands in the air???

The force of weight on the skydiver with a mass of 50.5 kg is approximately 495.255 Newtons (N).

the force of weight on the skydiver with a mass of 50.5 kg, you will need to use the following formula:

Force (F) = Mass (m) × Gravity (g)

Where the gravitational force (g) on Earth is approximately 9.81 m/s².

Step 1: Identify the mass of the skydiver, which is 50.5 kg.
Step 2: Multiply the mass by the gravitational force:
F = 50.5 kg × 9.81 m/s²

Step 3: Calculate the force:
F = 495.255 N

So, the force of weight on the skydiver with a mass of 50.5 kg is approximately 495.255 Newtons (N).

Learn more about force

brainly.com/question/30507236

#SPJ11

Explanation:

1st- states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. 

2nd- states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it. (most important law)

3rd- states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. (law of action/reaction)

Alpha Centauri A

The two main stars are Alpha Centauri A and Alpha Centauri B, which form a binary pair. They are an average of 4.3 light-years from Earth. The third star is Proxima Centauri. It is about 4.22 light-years from Earth and is the closest star other than the sun

Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest

Answer:

The answer is A

Answer:

A lightbulb has 25 W stamped on it. What does this mean?:

These labels mean that each lightbulb has Its respective power delivered to It when It Is connected to a constant

Explanation:

A 600-w TV receiver is turned on for 4 hours with nobody watching it. If electricity costs 10 cents/kWh, the amount of money wasted is cents. Therefore, the amount of money wasted in this case is 24 cents.

There are different steps to calculate the money wasted in this case. Here is the step-by-step solution to this problem:

First, we need to calculate the energy consumed in kWh:

Energy consumed = Power × Time Power = 600 W Time = 4 hours

Energy consumed = Power × Time Energy consumed = 600 W × 4 hours

Energy consumed = 2400 Wh.

To convert Wh into kWh, we need to divide the energy consumed by 1000:

Energy consumed = 2400 Wh = 2.4 kWh.

Now, we can calculate the amount of money wasted:

Cost of 1 kWh = 10 cents Cost of 2.4 kWh = 2.4 kWh × 10 cents/kWh

Cost of 2.4 kWh = 24 cents.  

A 600-w TV receiver is turned on for 4 hours with nobody watching it. If electricity costs 10 cents/kWh, the amount of money wasted is cents. The energy consumed by the TV receiver can be calculated by multiplying the power rating by the time it is used. In this case, the power rating is 600 W, and the time is 4 hours.

Therefore, the energy consumed is 600 W × 4 hours = 2400 Wh.

To convert the energy consumed into kWh, we need to divide it by 1000. So, 2400 Wh = 2.4 kWh. The cost of electricity is 10 cents per kWh.

Therefore, the cost of 2.4 kWh is 2.4 kWh × 10 cents/kWh = 24 cents.

This is the amount of money wasted by keeping the TV receiver turned on for 4 hours without anyone watching it. It is important to turn off electrical appliances when they are not in use to save electricity and reduce the electricity bill.

to know more about energy visit:

https://brainly.com/question/1932868

#SPJ11

Answer:

B.

Explanation:

Density = mass / volume

= 0.01/0.05

= 0.2 kg/m^3.