Wirte Different Methods of Transmission of heat? ​

Answer:

Canidate B

Explanation:

Becuase he/she is good to work with, and will most likely be more determined.

The acceleration of the baseball is 97.56 m/s^2.

To find the acceleration of the baseball, we can use the formula for acceleration, which is acceleration = change in velocity / time. In this case, the change in velocity is 40 m/s (the final velocity) minus 0 m/s (the initial velocity), which is 40 m/s. The time is given as 0.41 s.

So, the acceleration of the baseball can be calculated as follows:

acceleration = 40 m/s / 0.41 s

acceleration = 97.56 m/s^2

This means that the velocity of the baseball is increasing by 97.56 m/s every second, which is a very high rate of acceleration. This acceleration is likely due to the force exerted by the pitcher's arm and the resistance of the air on the baseball as it travels through the air.

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This type of system is an example of open system because the vapors leave the system and goes into the atmosphere.

An open system is a type of system that has external interactions which means energy, or material transfers into or out of the system.

So we can conclude that this type of system is an example of open system because the vapors leave the system and goes into the atmosphere.

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Answer:

PE = 0.35 J

Explanation:

Elastic potential energy in a spring is defined by PE = (1/2)kx^2, where k is the spring constant and x is the distance compressed/stretched. Converting 16 cm to 0.16 m, we get

PE = (1/2) * 27 * (0.16^2)

PE = 0.35 J

Answer:

SEx is where two species breed to produce offspring. In biology, asexual does not involve the fusion of gametes. In other terms, asexual means to not reproduce or enjoy partaking in sEx.

Explanation:

The rock sitting on the cliff that is 25 m high has the gratest gravitational potential energy.

Potential energy is defined as the energy of an object by virtue of it's location. Mathematically, it is written as:

PE = mgh

Where

To determine the rock with the grater potential energy, we shall determine the potential energy of both rock assuming they have the same mass. Details below:

For rock sitting at 25 m high:

PE = mgh

PE = 10 × 9.8 × 25

PE = 2450 J

For rock sitting at 12 m high:

PE = mgh

PE = 10 × 9.8 × 12

PE = 1176 J

From the above calculation, we have:

Thus, we can conclude that the rock sitting at 25 m high, has the gratest potential energy.

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In order to find how many centimeters are in 15 kilometers, we can use the following conversion rate:

1 km = 100,000 cm.

So, for 15 kilometers, we have:

Therefore the correct option is C.

If the mixture is thermally isolated from its surroundings, then it, loses thermal energy to the environment outside as it comes to a final temperature. The correct answer is d.

When the sample of lead is placed in the water, heat will flow from the lead to the water until they reach a common final temperature. Since the final temperature will be less than the initial temperature of the lead, heat must have flowed out of the lead into the surroundings, causing the lead to lose thermal energy to the environment outside the system.

Since the mixture is thermally isolated from its surroundings, no thermal energy is exchanged between the system (lead and water) and the environment during the process. However, heat can still flow within the system itself until thermal equilibrium is reached. Option d is correct.

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According to the given statement Mrs. Brown's electricity bill for the current month is $5000.00.

To calculate Mrs. Brown's electricity bill for the current month, we need to determine the total number of kilowatt-hours (kWh) she has consumed and apply the corresponding rates.

1. Calculate the electricity usage:

  Current meter reading - Previous meter reading
  20,300 kWh - 17,800 kWh = 2,500 kWh

2. Determine the cost for the first 2000 kWh:

  $1.00/kWh * 2000 kWh = $2000.00

3. Determine the cost for the remaining kWh:

  500 kWh * $3.50/kWh = $1750.00

4. Add the fuel adjustment charge:

  $0.50/kWh * 2500 kWh = $1250.00

5. Calculate the total bill:

  $2000.00 + $1750.00 + $1250.00 = $5000.00


To calculate the electricity bill, we first find the difference between the current and previous meter readings.

In this case, Mrs. Brown used 2,500 kWh.

For the first 2000 kWh, the cost is $1.00 per kWh, resulting in a charge of $2000.00.

For the remaining 500 kWh, the cost is $3.50 per kWh, totaling $1750.00.

Additionally, a fuel adjustment charge of $0.50 per kWh is added to the bill. This amounts to $1250.00.

Finally, we add up all the charges to get the total bill, which is $5000.00.

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Answer:

F = (500 ± 4) 10² lb

Explanation:

This is an exercise in the uncertainty or error of a measurement.

If a single measurement is made, the way to give the result is the measurement value plus the appreciation of the instrument that corresponds to the absolute error, in the form

           F = x ± Δx

For this, a suitable uniform is the use of scientific notation, where each magnitude is written with an integer and some decimals multiplied by an exponential.

           X = 50067 lb = 5.0067 10⁴ lb

the uncertainty is

           Δx = 400 lb = 4.00 10² lb

so the result for the report must be written

          F = (500 ± 4) 10² lb

where the significant figures are adjusted to the measurement error.

In the case of making a series of measurements, the value obtained is the average of the measurements and the error must be given by the standard deviation

Answer:

Your position would be -1

Explanation:

I think that's the answer you would need to collaborate more so i can give you a clear answer.

Answer:

0.280 s

Explanation:

I set it up as 5.22=(55)(0.0266)/x and then solved for x to be 2.80.

Answer:

To be better at something

Explanation:

I have Accelerated at cooking

Answer:

Acceleration means to speed up

Explanation:

Answer:

Explanation:

According to Newton's second law

F = ma

m is the mass = 0.12kg

a is the acceleration = v-u/t

a = 5-0/0.6

a = 5/0.6

a = 8.333m/s²

Get the force

F = 0.12 * 8.333

F = 1.0N

Hence the average resultant force acting on the ball while it is being hit is 1.0N

Answer:

what about it i need more info

Explanation:

The fundamental force that is most responsible for beta decay is the weak force. This force is responsible for the transformation of a neutron into a proton, electron, and antineutrino.

During beta decay, a neutron emits a W- boson which then decays into a proton, electron, and antineutrino. This results in the conversion of a neutron into a proton, with the electron and antineutrino carrying away the excess energy and momentum. In nuclear physics and particle physics, the weak interaction, which is also often called the weak force or weak nuclear force, is one of the four known fundamental interactions, with the others being electromagnetism, the strong interaction, and gravitation. The Standard Model of particle physics provides a uniform framework for understanding electromagnetic, weak, and strong interactions. An interaction occurs when two particles (typically, but not necessarily, half-integer spin fermions) exchange integer-spin, force-carrying bosons.

So, The fundamental force that is most responsible for beta decay is the weak force.

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Answer:

The change in time for the first quarter is  seconds.  = 2.07

The change in time for the second quarter is  seconds.

=1.09

The change in time for the third quarter is  seconds.

=0.95

The change in time for the fourth quarter is  seconds.=0.81

Explanation:

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a) On a wet basis, the molar composition of the gas is approximately 0.813 mol propane, 0.055 mol n-butane, and 0.132 mol water. The ratio of mol H₂O to mol dry gas is 0.162 mol H₂O/mol dry gas.

b) The required air feed rate is approximately 65.9 kmol/h. If the combustion were only 65% complete, the required air feed rate would increase to approximately 101.4 kmol/h.

a) To calculate the molar composition on a wet basis, we convert the weight percentages to mole fractions using the molar masses of propane, n-butane, and water. The molar composition is determined by dividing the weight percentage by the respective molar mass and normalizing the values to sum up to 1. The ratio of mol H₂O to mol dry gas is determined by dividing the mol water by the sum of mols of propane and n-butane.

b) To calculate the required air feed rate, we use the stoichiometry of the combustion reaction between butane and air. The balanced equation shows that 1 mol of butane reacts with 13.5 mol of air. Considering the 25% excess air requirement, we multiply the stoichiometric air requirement by 1.25. If the combustion is only 65% complete, the remaining butane requires additional air to achieve complete combustion. Therefore, the required air feed rate increases to account for the unreacted butane.

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Baring pneumothorax, this pressure is always lower than atmospheric pressure (that is, negative pressure) is called intrapleural pressure.

Intrapleural pressure refers to the pressure within the pleural cavity, which is the space between the lungs and the chest wall. Under normal conditions, the intrapleural pressure is maintained at a level lower than atmospheric pressure. This negative pressure is crucial for maintaining lung inflation and facilitating the process of breathing.

The negative intrapleural pressure is generated by the opposing forces acting on the lungs and chest wall. The elastic recoil of the lungs tends to collapse them inward, while the elastic recoil of the chest wall tends to expand it outward. These opposing forces create a negative pressure in the pleural cavity, which keeps the lungs expanded and allows for efficient gas exchange during respiration.

The negative intrapleural pressure is essential for maintaining the integrity of the lungs and promoting their optimal function. However, in the case of pneumothorax, air enters the pleural cavity, equalizing the pressure with atmospheric pressure and leading to a loss of the negative pressure. This can result in lung collapse and difficulty in breathing.

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Answer:

1kg steam will have the maximum energy

In that amount of time, the ball will travel 250 meters.

We refer to uniform acceleration as the process through which an object's speed (velocity) increases at a constant pace. The acceleration rate is constant. A car's acceleration is not consistent if it accelerates quickly before slowing down.

The three main categories of accelerated motions are uniform, non-uniform, and average acceleration. When an item moves in a straight path with an increase in speed occurring at regular intervals of time, this motion is referred to as having uniform acceleration.

According to the question -

u = 10 m/s

t = 25 s

Therefore -

Distance = u x t = 10 x 25 = 250 meters.

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To find the tension in the string, we need to first find the acceleration of the system. The weight of the hanging weight is balanced by the tension in the string, Therefore, the answer is A. 59.0 N.

so we can write:

Tension = weight of hanging weight = m1g

where m1 is the mass of the hanging weight and g is the acceleration due to gravity (9.8 m/s^2).

The force acting on the 5.0-kg block is the tension in the string minus the force of friction. The force of friction is given by:

friction force = coefficient of friction x normal force

where the normal force is the force perpendicular to the table, which is equal to the weight of the block (m2g).

So we can write:

Tension - friction force = m2a

where m2 is the mass of the block and a is the acceleration of the block.

Substituting the expressions for tension and friction force, we get:

m1g - coefficient of friction x m2g = m2a

Solving for a, we get:

a = (m1 - coefficient of friction x m2)g / (m1 + m2)

Substituting the given values, we get:

a = (9.0 - 0.19 x 5.0) x 9.8 / (9.0 + 5.0) = 2.45 m/s^2

Finally, we can use Newton's second law to find the tension in the string:

Tension = m1g = 9.0 x 9.8 = 88.2 N

Therefore, the answer is A. 59.0 N.

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Answer:

10

Explanation:

Answer:

Let the initial charges be q1 and q2 respectively.

After they come in contact, the charges are rearranged such that they acquire same charge.

let us say that charge on each of them is Q.

They are again brought apart at a distance of 0.9 m. Hence, the force between them will be given as

F = kQ2 / r2

0.025 = (9×109 x Q2) / 0.92

Q2 = 0.025 x 0.92 / 9×109

Q = 1.5 x 10-6 C

Explanation:

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Answer:

x

Explanation:

The question relates to the energy required to pump water out of the

spout at the top of the triangular prism tank.

The width of the layer of water Δx thick is x m.

Reasons:

The location of the layer Δx m thick = x meters above the bottom

The length of the triangular (cross-section) prism tank = 8 meters

The length of the layer Δx thick layer = 8 meters

From the attached drawing of the cross-section of the tank, we have;

The height of the triangular tank cross-section = 3 meters

The length of the base of the triangular cross-section = 3 meters

By similar triangles, we have;

\(\dfrac{Height \ of \ Tank}{Base \ length \ of \ tank}= \dfrac{Height \ of \ layer \ with \ thickness \ \Delta x }{Width \ of \ layer \ with \ thickness \ \Delta x}\)

Which gives;

\(\dfrac{3}{3} =\dfrac{x}{Required \ width}\)

\(\dfrac{3}{3} =1 = \dfrac{x}{Required \ width}\)

Required width × 1 = x

The required width = x m

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Momentum = m×v

=65×2

=130

a/q..

130=25×v

v=130/25

v=5.2

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Answer:

The value of new coulomb force is 1.43 N.

Explanation:

Given;

Coulomb's force in vacuum (air), \(F_v\) = 10 N

dielectric constant, K = 7

The Coulomb's force between two charges separated by a distance r in a vacuum is given as;

\(F_v = \frac{1}{4\pi \epsilon_0} \frac{q_1q_2}{r^2}\)

The Coulomb's force between two charges separated by a distance r in a medium with dielectric constant is given as

\(F_m = \frac{1}{4\pi K\epsilon_0} \frac{q_1q_2}{r^2}\)

Take the ratio of the two forces;

\(\frac{F_v}{F_m} = \frac{1}{4\pi \epsilon_0} \frac{q_1q_2}{r^2} \ \times \ \frac{4\pi K\epsilon_0 r^2}{q_1q_2} = K\\\\\frac{F_v}{F_m} = K\\\\\frac{10}{F_m} = 7\\\\F_m = \frac{10}{7} \\\\F_m = 1.43 \ N\)

Therefore, the value of new coulomb force is 1.43 N.

Answer:

You subtract the atomic number from the atomic mass to find the number of neutrons alone

Explanation:

The atomic number is the number of protons OR electrons. They are both equal thus making the atom have a neutral charge. The relative atomic mass is the number of protons AND neutrons.