Andy has set a goal to be able to run 65 laps on the PACER by the end of the school year. This is an example of a ____.




1. short-term goal

2. improvement plan

3. long-term goal

4. none of the above

The dryness fraction is 0.96. Using steam tables the enthalpies at points 2, 3, and 4 can be calculated as 2936.4 kJ/kg, 2892.3 kJ/kg, and 1039.2 kJ/kg, respectively. The value of q is found to be 1438.3 kJ/kg.

a) 0.2, b) 2687 kJ/kg, c) 0.16 kJ/kg.K, d) 32%, e) 2549.52 kJ/kgPart (a): The steam is superheated at 300°C and 3 MPa, using steam tables it can be seen that the dryness fraction is 0.96.Part (b): This can be calculated using the formula shown below. The net work done by the turbine is given as follows: Net work = m (h1 - h2) + m (h3 - h4) Where m is the mass of the steam entering the turbine and h1, h2, h3, and h4 are the enthalpies at the different points in the cycle.h1 is given as 3478 kJ/kg, and using steam tables the enthalpies at points 2, 3, and 4 can be calculated as 2936.4 kJ/kg, 2892.3 kJ/kg, and 1039.2 kJ/kg, respectively.

Substituting the values in the formula gives the answer as 2687 kJ/kg.Part (c): Heat transfer per unit mass of steam to the boiler can be calculated using the formula shown below:q = h1 - h4 The value of q is found to be 1438.3 kJ/kg. Part (d): The thermal efficiency of the cycle can be calculated using the formula shown below: Efficiency = Net work output/ Heat inputHeat input can be calculated as follows: Heat input = m (h1 - h4) + m (h3 - h2) The value of heat input is calculated to be 4485.4 kJ/kg Substituting the values in the formula gives the answer as 32%.Part (e): The heat transfer to cooling water passing through the condenser is given as follows:q = m (h4 - h5)Where h4 is 1039.2 kJ/kg and h5 is 48.72 kJ/kg. The value of q is calculated to be 2549.52 kJ/kg.

To know more about dryness visit:-

https://brainly.com/question/5710733

#SPJ11

It is FALSE to state that the distance from the point of no return to the intersection is the same no matter what speed you are going.

If you are 100 feet or fewer from the junction, you have passed "the point of no return" and cannot safely halt before the intersection. As a result, it is preferable to proceed through the junction at your present, legal speed, but with extreme caution.

The point of no return is the moment at which you can no longer halt without entering that space, which is two seconds away. Time yourself in this scenario. Red, green, and flashing lights Yellow arrows: Each traffic signal turn is a dangerous 4-second danger zone. The riskiest is a left turn that requires you to stop and surrender.

Learn more about intersectins in traffic:
https://brainly.com/question/10480226
#SPJ1

It is a false statement that Scientific study can always be categorized as belonging to only one of the three major categories of sciences.

A scientific study involves an investigation into issues that has to do a scientific topic. There are three main branches of science which are physics, chemistry and biology. However most of the research in science is interdisciplinary. It involves a synergy between the various fields of science.

Thus, it is a false statement that Scientific study can always be categorized as belonging to only one of the three major categories of sciences.

Learn more about a scientific study:https://brainly.com/question/10889054

#SPJ1

Please find attached photograph for your answer.

Answer:

Centripetal force and Centrifugal force.

» similarities

• Both these forces act on a body moving in circular path ( circular motion )

• Both these forces can occur in a simple harmonic motion. ( S.H.M )

» differences

• Centripetal force acts towards the centre of circular path while centrifugal force acts away from the centre.

• Centripetal force is inversely proportional to radius of circular path while Centrifugal force is directly proportional to radius of the circular path.

Explanation:

\(.\)

The energy change caused by an endothermic chemical reaction is the absorption of thermal energy. So, option B.

Endothermic reactions are defined as, those reactions in which the reactants take in heat energy from the environment to create products.

Here,

The endothermic reactions lower the temperature of their surrounding area, thereby creating a cooling effect.

When bonds in the reactants are broken, more energy is absorbed than is released when new bonds are generated in the products. This is known as an endothermic reaction.

A drop in the temperature of the reaction mixture is a characteristic of endothermic reactions.

In endothermic reactions, the enthalpy of the products of the reaction is greater than that of the reactants. Energy is absorbed from the surroundings.

Hence,

The energy change caused by an endothermic chemical reaction is the absorption of thermal energy.

To learn more about endothermic reactions, click:

https://brainly.com/question/23184814

#SPJ5

At x = 0, there are no dislocated impulses, while at x = 3, there are 13,200 dislocated impulses.

The problem states that the number of dislocated electric impulses per cubic inch in a transformer increases when lightning strikes by D = 1100(4)×,

where × represents the time in milliseconds of the lightning strike.

We need to find the number of dislocated impulses at x = 0 and x = 3.

To find the number of dislocated impulses at x = 0, substitute x = 0 into the equation D = 1100(4)×:

D(0) = 1100(4)(0)

D(0) = 0

So, at x = 0, there are no dislocated impulses.

To find the number of dislocated impulses at x = 3, substitute x = 3 into the equation:

D(3) = 1100(4)(3)

D(3) = 13200

Therefore, at x = 3, there are 13,200 dislocated impulses.

Learn more about impulses here:

https://brainly.com/question/29297755

#SPJ11

Solve the problem. The number of dislocated electric impulses per cubic inch in a transformer increases when lightning strikes by D=1100(4)×, where × is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at x=0 and x=3

The main answer to the given question is -3.0 m/s.What is the explanation to the given question?Here, we need to find the ball's velocity relative to the ground at the instant of release.

So, let's assume that the upward direction is positive. Then, the velocity of the gondola (v₁) is -2.0 m/s (as it is moving in the opposite direction).The passenger throws the ball down at a speed of 5.0 m/s relative to his body. So, the velocity of the ball relative to the passenger (v₂) is -5.0 m/s (as it is thrown downwards).

Now, we can find the velocity of the ball relative to the ground (v₃) using relative velocity formula, which is:v₃ = v₂ + v₁v₃ = (-5.0) + (-2.0)v₃ = -7.0 m/sSo, the ball's velocity relative to the ground at that instant is -7.0 m/s. Therefore, the main answer is -3.0 m/s.

To know more about velocity visit:

https://brainly.com/question/17127206

#SPJ11

The ball's velocity relative to the ground at the instant of release is 7.0 m/s.

1. The balloon-supported gondola is rising at a speed of 2.0 m/s. This means that the gondola and everything inside it, including the passenger and the ball, are moving upward with a velocity of 2.0 m/s relative to the ground.

2. The passenger in the gondola throws a small ball down at a speed of 5.0 m/s relative to his body. Since the passenger is moving upward with the gondola at 2.0 m/s, we need to consider the relative motion between the passenger and the ball.

3. When the passenger throws the ball downward, the ball's velocity relative to the passenger is 5.0 m/s downward.

4. To find the ball's velocity relative to the ground at the instant of release, we need to combine the velocity of the gondola (2.0 m/s upward) and the ball's velocity relative to the passenger (5.0 m/s downward).

5. Since the velocities are in opposite directions, we subtract the magnitudes: 5.0 m/s - 2.0 m/s = 3.0 m/s.

6. The negative sign indicates that the ball is moving downward relative to the ground.

7. Finally, to find the ball's overall velocity relative to the ground at the instant of release, we consider the magnitude only: |-3.0 m/s| = 3.0 m/s.

8. However, since the problem states that the ball's velocity is 5.0 m/s relative to the passenger's body, we need to take the direction into account. Thus, the ball's velocity relative to the ground at that instant is 3.0 m/s downward (or -3.0 m/s).

Therefore, the ball's velocity relative to the ground at the instant of release is 7.0 m/s.

For more such questions on velocity, click on:

https://brainly.com/question/80295

#SPJ8

Answer: i think biden will win

Explanation:

because people throw away  donald trump's votes

Answer:

speeding up

Explanation:

because its speeding up, theres going to be more newtons in the back

i really hope this is right, tell me if so

A. Electrical energy  B. Elastic energy  are the forms of potential energy.

Potential energy is the energy possess by an object because due to its position relative to other objects, stresses within itself, its electric charge, or other factors.

Types of Potential energy:

Therefore,

Electrical energy , Elastic energy are the forms of potential energy.

Learn  more about Potential energy here:

https://brainly.com/question/7674744

#SPJ5

Answer:

38500

Explanation:

I looked it up so it may be wrong

Pitch refers to how high or low a sound seems to a person. It is the degree of highness or lowness of a sound, which is determined by the frequency of a sound wave.

Pitch is a sound's quality that enables us to discern between a low and a high sound. It is the degree of highness or lowness of a sound and is determined by the frequency of a sound wave. A high-pitched sound is a sound that has a high frequency. A low-pitched sound, on the other hand, is a sound that has a low frequency. Sound pitch is an important aspect of music and voice tone.Pitch can be described as the rate of vibration of sound waves, measured in Hertz (Hz), with higher frequencies indicating a higher pitch. The pitch of a sound can be altered by changing the frequency of the sound wave. Pitch and volume are two of the most important qualities of sound that are utilized in music and speech to express various emotions and convey meaning.The pitch of a sound is generally increased by increasing the frequency and decreased by decreasing the frequency. The pitch of a sound can also be affected by other factors, such as the size, shape, and material of the object producing the sound. For instance, a guitar string that is tight will create a high-pitched sound, while a loose guitar string will create a low-pitched sound. Similarly, a small bell will produce a high-pitched sound, while a large bell will produce a low-pitched sound.

Pitch is the degree of highness or lowness of a sound and is determined by the frequency of a sound wave. A high-pitched sound is a sound that has a high frequency. A low-pitched sound, on the other hand, is a sound that has a low frequency. Pitch can be described as the rate of vibration of sound waves, measured in Hertz (Hz), with higher frequencies indicating a higher pitch. The pitch of a sound can be changed by adjusting the frequency of the sound wave.

Learn more about Pitch visit:

brainly.com/question/27128408

#SPJ11

Answer:

Newton was a mathematician, physicist and more. He co-invented calculus. But I have no idea about the atom part.

The solid state of matter has the lowest entropy .Option A

In general, the solid state of matter has the lowest entropy. Entropy is a measure of the disorder or randomness of a system. In a solid, the molecules or atoms are tightly packed and have very little freedom of movement. This results in a highly ordered and organized structure with a low level of disorder or randomness.

As a result, the entropy of a solid is generally lower than that of a liquid or gas, where the molecules have more freedom of movement and are less ordered.

In a liquid, the molecules are more disordered and have more freedom of movement than in a solid. This results in a higher level of randomness and disorder, and therefore a higher entropy.

Similarly, in a gas, the molecules are even more disordered and have even more freedom of movement than in a liquid, resulting in an even higher entropy.

Plasma and supercritical fluids are states of matter that are less commonly encountered in everyday life, but they generally have even higher levels of disorder and entropy than gases due to their high energy and lack of well-defined boundaries between particles. So Option A is correct.

For more question on entropy visit:

https://brainly.com/question/6364271

#SPJ11

Scientists from the University of Arizona in Tucson conducted a study in 2014 and found that the northern hemisphere, which had temperatures below the freezing point of methane, resulted in the methane lakes on Titan not evaporating between 2002 and 2007.

The lake on Titan is comprised of hydrocarbons, especially methane and ethane. Methane and ethane are found in the atmosphere of Titan. In the mid-latitudes of the moon, the methane evaporates into the atmosphere, similar to how water evaporates from Earth's oceans, forming methane clouds. Methane is also responsible for the precipitation of liquids on the moon's surface.

Methane is hydrophobic, implying that it is incapable of mixing with water. Methane is a substance that is capable of evaporating. The content loaded in the northern hemisphere on Titan had temperatures below the freezing point of methane, resulting in the methane lakes on Titan not evaporating between 2002 and 2007.

The scientists discovered that the north pole had become colder during the 2000s than it had been in the previous 20 years. Due to the reduced temperature, the amount of evaporation had also decreased. The researchers concluded that the northern hemisphere's colder temperature had contributed to the methane lakes on Titan's surface not evaporating between 2002 and 2007.

To learn more about hydrocarbons, visit:

https://brainly.com/question/32019496

#SPJ11

The maximum height of an object thrown or shot vertically into the air is reached after t seconds, where t is the k-coordinate of the vertex of the parabola.

When an object is thrown or shot vertically, its motion can be modeled by a parabolic function.

The vertex of this parabola represents the highest point the object will reach, and the k-coordinate of the vertex represents the time it takes for the object to reach that height.

Hence, The maximum height of a vertically thrown or shot object is attained at the k-coordinate of the vertex of the parabola, which corresponds to the time t in seconds.

learn more about parabola click here:

https://brainly.com/question/25651698

#SPJ11

Momentum is a product of the mass and velocity of particles in motion while impulse is the rate of change of the momentum of particles/objects when a force acts on the object.

The impulse of the collision in system A is twice the impulse of the collision in system B

Impulse is given as J = F.dt

In case of impulse 1,

it is F(1-0.5) = 4* 0.5 = 2 Ns

In case of impulse 2,

it is = 2(2.5 - 1.5) = 2Ns

We saw that, both the impulses are calculated to be 2Ns.

Therefore, both the impulses in the graph are same.

To know more about impulse, refer: https://brainly.com/question/17304001

#SPJ4

Answer: depth, shade, fragrance

Explanation:

Answer:

Depending on the relative position of the Earth the Sun and Neptune in the Earths orbit the distances are;

The closest (minimum) distance of Neptune from the Earth is 29 AU

The farthest (maximum) distance of Neptune fro the Earth is 31 AU

Explanation:

The following parameters are given;

The distance from the Earth to the Sun = 1 AU

The distance of Neptune from the Earth = 30 AU

We have;

When the Sun is between the Earth and Neptune, the distance is found by the relation;

Distance from the Earth to Neptune = 30 + 1 = 31 AU

When the Earth is between the Sun  and Neptune, the distance is found by the relation;

Distance from the Earth to Neptune = 30 - 1 = 29 AU

Therefore, the closest distance from Neptune to the Earth in the Earth's Orbit is 29 AU

The farthest distance from Neptune to the Earth in the Earth's orbit is 31 AU.

Answer:

29 AU

Explanation:

Given:

The mass on the table is,

The hanging mass is,

THe coefficient of friction is,

let the acceleration of the whole system is a (for the hanging mass it is downward and for the mass on the table it is rightward). the tension towards The fixed point of the pulley is T.

we can write,

Adding these equations we get,

Substituting the values we get,

Hence the acceleration is 6.66 m/s^2.

As the elevator is moved from 15th floor to the 10th floor at a constant speed. It means that the height is decreasing but the speed of the elevator is moved at a constant.

It results that the kinetic stays the same but the potential energy is decreasing.

The velocity of the two objects after the collision is 0.1535 m/s in south direction.

The law of conservation of momentum asserts that, unless an external force is applied, the total momentum of two or more bodies operating upon one another in an isolated system remains constant.

From the law of conservation of momentum, it can be written that:

Total initial momentum = total final momentum

19 kg × 4.2 m/s + 24 kg × (-3.6) m/s = (19 kg + 24 kg)× v

v = [19 kg × 4.2 m/s + 24 kg × (-3.6) m/s] ÷  (19 kg + 24 kg)

v = - 0.1535 m/s

Hence,  the velocity of the two objects after the collision is 0.1535 m/s in south direction.

Learn more about momentum here:

https://brainly.com/question/24030570

#SPJ1

The sum of the x components of the forces acting on block 2 is given by the equation ∑F2x = Tcos(θ) - mgsin(θ).

Here, T is the tension, m is the mass of the block, g is the acceleration of gravity, and θ is the angle of the incline.

This equation can be used to calculate the x components of the forces in a variety of situations, such as when the block is being pulled up an incline or when it is in equilibrium. It is important to note that the forces acting on the block must be expressed in terms of their x and y components in order for the equation to be accurate. Additionally, it is important to consider the direction of the forces when calculating the x components, as the sign can have a significant impact on the result.

Learn more about the forces:

https://brainly.com/question/12970081

#SPJ4

Answer:

The answer is T-m2gsin(theta)

Explanation:

Given that the mass of catapult, m = 18900 kg

The initial velocity is

As the body is at rest initially.

The final speed is

The time taken is t = 3.3 s

We have to find the force.

According to Newton's second law, the formula to calculate force is

Substituting the values, the force will be

Thus, the force is 349363.63 N

The magnitude of the centripetal acceleration of the stopper, given that the rubber stopper has a mass of 16 grams is 1.9 m/s²

The centripetal acceleration can be obtained as illustrated by the following formula:

Centripetal acceleration = v² / r

Where

The following data were obtained where obtained from the question:

Centripetal acceleration = v² / r

Centripetal acceleration = (1.8)² / 1.7

Centripetal acceleration = 1.9 m/s²

Thus, the centripetal acceleration is 1.9 m/s²

Learn more about centripetal acceleration:

https://brainly.com/question/9383491

#SPJ1

The properties of a good insulator are as follows:

A good insulator may be characterized as a material that does not easily allow heat and/or electricity to pass through it. Plastic, wood, rubber, and glass are examples of good insulators.

They do not allow electricity to pass through them. That is why they are used to cover materials that carry electricity, such as the plastic covering that surrounds wires as it prevents electricity from flowing where it is not needed.

Therefore, the properties of a good insulator are well described above.

To learn more about Good insulators, refer to the link:

https://brainly.com/question/27207445

#SPJ1