17. This metric measures the percentage of items that were classified as + that were truly + TP/(TP + FP) a. precision b. recall C. accuracy d. F-measure 18. This metric is a balance of precision and recall. a. p-value b. accuracy C. F-measure d. none of the above 19. True or false. It is helpful to use a development set to tune parameters if we have a small amount of data. 20. True or false. Naïve Bayes is a discriminative model. 21. True or false. Kappa ranges from 0 to 1. 22. True or false. The ideal AUC value is either +1 or -1. 23. This term refers to how well an algorithm can model different data sets. a. bias b. variance c. none of the above 24. Select ALL that are true. The purpose of adding a regularization term to an objective function is: a. to prevent underfitting b. to prevent overfitting c. to penalize large weights d. to penalize small weights 25. Select ALL that are true. Which are true about activation functions for neural networks: a. the sigmoid function output ranges from 0 to 1 b. the tanh function output ranges from -1 to +1 C. the rely output ranges from 0 to infinity d. the softmax function output sums to 1 26. True or false. Neural networks can have only one output 27. True or false. Logistic regression requires more feature engineering than neural networks. Deep Learning Questions 28. Trueor false. A layer represents a function that inputs tensors and outputs transformed tensors. 29. True or false. A model defines how neuro are put gether. 30. Select ALL that are true. Advantages of deep learning models over more shallow neural networks and traditional ML algorithms: a. they can learn more complex functions b. they can learn data representations at the same time as the function c. they train faster d. they require less data

Answer:

Resistance of the lamp (r) = 156.52 ohm (Approx.)

Explanation:

Given:

Total power p = 140 W

Resistance of the coffee maker = 300 Ohm

Voltage v = 120 V

Find:

Resistance of the lamp (r)

Computation:

We know that

p = v² / R

SO,

Total power p = [Voltage²/Resistance of the lamp (r)] + [Voltage²/Resistance of the coffee maker]

140 = [120² / r] + [120²/300]

140 = 120²[1/r + 1/300]

140 = 14,400 [1/r + 1/300]

Resistance of the lamp (r) = 156.52 ohm (Approx.)

\(\\ \sf\longmapsto Impulse\:of\:Force=Force\times Time\)

\(\\ \sf\longmapsto Impulse\:of\:Force=750(0.5)=375N.s\)

Angular velocity: The rate of change of angular displacement of a body with respect to time is angular velocity. It is de Angular velocity:

Angular velocity is a physical quantity used to describe the rate of change of angular displacement of an object or particle with respect to time. It is measured in radians per second (rad/s) or degrees per second (°/s). The angular velocity is a vector quantity and its direction is perpendicular to the plane of rotation. The magnitude of the angular velocity depends on the rate of change of the angle swept by an object as it rotates about a fixed point. It is commonly used in fields such as physics, engineering, and astronomy to describe the motion of rotating objects or particles. It is also an important parameter for understanding the dynamics of rotating systems and can be used to calculate other physical quantities such as angular acceleration, torque, and moment of inertia.

Learn more about Angular Velocity here:

https://brainly.com/question/14475423

#SPJ11

Neither technician is correct it is because vehicles that are capable of using 83% ethanol are called flex-fuel vehicles and such vehicles are able to achieve 100 horsepower.

Flex fuel is an alternative fuel prepared with a combination of ethanol and gasoline. Flux fuel vehicles are vehicles that have internal combustion engines made to operate on more than one type of fuel - gasoline and any blend of gasoline and ethanol up to 83%. Ethanol contains a higher octane number than gasoline so flex-fuel vehicles that use up to 83% ethanol to run have increased power and performance (100 horsepower).

So both technicians a and b are incorrect as per discussion vehicles that are able to operate on 83% ethanol are referred to as flex-fuel vehicles and those vehicles are able to provide 100 horsepower.

You can learn more about flex-fuel vehicles at

https://brainly.com/question/2581473

#SPJ4

Answer:

i think 1844

Explanation:

2005 BMW 5 Series , that should be it

The radial load in bearing b when the motor is stopped with zero tension in the chain is 300 lb. It is logical that the load in the bearing is higher when the motor is stopped than when it is running and putting tension in the chain due to the principle of statics.

Here's why:When the motor is running, the chain is stretched due to the tension force applied to it. This tension force counteracts the radial load on the bearings, which is why the load is lower in this scenario.On the other hand, when the motor is stopped with zero tension in the chain, the weight of the load is entirely supported by the bearings.

The radial load on the bearing is given by the formula:Radial load on bearing = (Weight of load / Number of bearings) + Axial load due to belt tensionTherefore, when the motor is stopped with zero tension in the chain, the radial load on bearing b can be calculated as follows:Radial load on bearing b = (300 lb / 2) + 0Radial load on bearing b = 150 lbHence, the radial load in bearing b when the motor is stopped with zero tension in the chain is 150 lb.

To know more about scenario visit:

https://brainly.com/question/32720595

#SPJ11

The accidents on rural roads after 4 years will be 62.4

Proportion of accidents on highways = 80/100 = 0.8

Proportion of accidents on rural roads = 20/100 = 0.2

Assuming that the proportion of accidents on highways and rural roads remains constant, the number of accidents on highways after 4 years can be estimated as follows:

Number of accidents on highways after 4 years = 60% of total accidents after 4 years

Total accidents after 4 years = 100*(1+growth rate)^4, where growth rate is the annual growth rate of road accidents on highways.

The number of accidents on rural roads after 4 years can be estimated as follows:

Number of accidents on rural roads after 4 years = 40% of total accidents after 4 years

Total accidents after 4 years = 100*(1+growth rate)^4, where growth rate is the annual growth rate of road accidents on rural roads

Proportion of accidents on rural roads = Number of accidents on rural roads after 4 years / Total accidents after 4 years

Setting the above equation to 0.4 and solving for the number of accidents on rural roads after 4 years, we get:

Number of accidents on rural roads after 4 years = 62

Learn more about word problem on;

https://brainly.com/question/21405634

#SPJ1

Answer:

My guess is toxicty from gas fumes. Hope this helps

Explanation:

One of the four characteristics of hazardous waste is Toxicity. That is option B.

A hazardous waste is any material or substance that is capable of harming living organisms and making the environment dangerous for to live in.

The characteristics of a hazardous waste include:

Therefore, one of the four characteristics of hazardous waste is Toxicity.

Learn more about hazardous wastes here:

https://brainly.com/question/1160703

Answer:

volunteer coordinator

Explanation:

because they are volunteering for that and in most of the cases they do not expect to be paid

To evaluate the battery's conductivity, a conductance tester injects low-frequency signals into it. The current carrying capability of a battery increases with capacity.

Battery conductance testers operate by passing a small amount of current through the battery to measure its electrical resistance.

They then use this information, a mathematical model of the battery, and any data the user may have entered to determine the battery's performance parameters.

By putting something between the wire's two free ends, you can test a material. Put one of the wire's free ends on one side of the object and the other on the other side. 10. If the bulb illuminates, the substance is conductive; if not, it is an insulator.

Therefore, it is true that Many of the conductance testers have integrated printers.

Learn more about conductance testers here:

https://brainly.com/question/14602403

#SPJ2

Answer:

I think its A

Explanation:

The diameter, bolt M27 is known to be 3.0mm in pitch and 41mm across flats.

This is a term that is often seen as the Major diameter. The diameter of a bolt is known to be a kind of a Shank diameter which is said to be often shown or expressed in the unit called millimeters in regards to Metric bolts.

This is so due to the  fact that it is almost the same as the Major or Thread diameter.

Therefore, The diameter, bolt M27 is known to be 3.0mm in pitch and 41mm across flats.

Learn more about bolt from

https://brainly.com/question/20691242

#SPJ1

Answer:

good shoes

Explanation:

yes

(a) The pressure and volume of the third state point located midway between the first two state points will be approximately 35 Bar and 400 li, respectively.

(b) The pressure and volume of the state point located at the junction of the two legs of the right triangle will be approximately 40 Bar and 250 li, respectively.

(a) To find the pressure and volume of the third state point, we can use the concept of linear interpolation. Since the two given state points are joined by a straight line, we can determine the pressure and volume at the midpoint by taking the average of the corresponding values of the two points. Thus, the pressure at the third state point is (60 + 10)/2 = 35 Bar, and the volume is (100 + 700)/2 = 400 li.

(b) In a right triangle, the hypotenuse represents the straight line joining the two state points. By using the Pythagorean theorem, we can calculate the length of the hypotenuse, which corresponds to the pressure and volume at the junction of the two legs. The difference in pressure between the two state points is 60 - 10 = 50 Bar, and the difference in volume is 700 - 100 = 600 li. Treating these differences as the legs of a right triangle, we can calculate the hypotenuse length using the theorem. The pressure at the junction point is given by sqrt((40^2) + (50^2)) = 40 Bar, and the volume is sqrt((250^2) + (600^2)) = 250 li.

Learn more about right triangle.

brainly.com/question/33222274

#SPJ11

A   differential backup backup copies only the files that have changed since the last full backup. Hence option D is correct.

Only the data that has changed since the last backup operation of any kind will be copied as a result of an incremental backup operation. The modified time stamp on files is typically used by an organization, and it is contrasted with the time stamp of the most recent backup.

Therefore, one can say that Data backups called differential backups copy all the files that have changed since the last full backup was completed. This does not involve copying all of the data each time and includes any data that has been created, updated, or changed in any way.

Learn more about differential backup from

https://brainly.com/question/13025611
#SPJ1

See full question below

selective

archival

partial

differential

The voltage supplied in the communication room to the light fixtures can be 120 volts or 277 volts respectively.

Options B and C are the correct answers.

Voltage is the electric force that makes the charges move which creates an electric current.

The light fixtures are the component of light that is being attached to the wall or a ceiling that holds any kind of lighting element. For instance, the holder of a bulb in which it is fixed is treated as a light fixture. The general voltage produces by a light fixture is 120 volts but preferable should be at 277 volts.

Therefore, all the volts except which is mentioned in options A and D cannot correspond to the voltage of light fixtures.

Learn more about the voltage in the related link:

https://brainly.com/question/2364325

#SPJ1

Answer:

The force of friction always acts in a direction, opposite to that in which the body is moving.

The magnitude of kinetic friction bears a constant ratio to the normal reaction between the two surfaces. ...

For moderate speeds, the force of friction remains constant.

Answer:

Explanation:Kinetic friction is a force that acts between moving surfaces. An object that is being moved over a surface will experience a force in the opposite direction as its movement. The magnitude of the force depends on the coefficient of kinetic friction between the two kinds of material.

Answer:

The difference between the dual split Master cylinder and diagonal split Master cylinder is dual split it makes power brakes less prone to failure while diagonal split is when the left rear and right front brakes are on one hydraulic line while the right front and left rear brakes are on another.

The distinction between a diagonal split and a dual split master cylinder Power brakes are less likely to fail when the master cylinder is dual split, while diagonal splitting occurs when the left rear and right front brakes are connected to one hydraulic line while the right front and left rear brakes are connected to another.

The hydraulic pump in a car's braking system, which includes a cylinder and one or more pistons and pushes hydraulic fluid under pressure to the brakes at each wheel, is activated by pressing the brake pedal.

In order to convert the pressure on the brake pedal to hydraulic pressure, the master cylinder, also known as the master brake cylinder, feeds brake fluid into the brake circuit and regulates this in accordance with the mechanical force.

Thus, The distinction between a diagonal split and a dual split master cylinder Power brakes are less likely to fail.

For more details about master cylinder, click here:

https://brainly.com/question/15707688

#SPJ2

Answer:

a) 2.452

b) 1.256

Explanation:

Stress due to dead weight. = 14 Ksi

Stress due to fully loaded tractor-trailer = 45Ksi

ultimate tensile strength of beam = 76 Ksi

yield strength = 50 Ksi

endurance limit = 38 Ksi

Determine the safety factor for an infinite fatigue life

a) If mean stress on fatigue strength is ignored

β = ( 45 - 14 ) / 2

  = 15.5 Ksi

hence FOS ( factor of safety ) = endurance limit / β

                                                 = 38 / 15.5 = 2.452

b) When mean stress on fatigue strength is considered

β2 = 45 + 14 / 2

    = 29.5 Ksi

Ratio  = β / β2 = 15.5 / 29.5 = 0.5254

Next step: applying Goodman method

Sa =  [ ( 0.5254 * 38 *76 ) / ( 0.5254*76 + 38 ) ]

     = 19.47 Ksi

hence the FOS ( factor of safety ) = Sa / β

                                                      = 19.47 / 15.5 = 1.256

Given:

(a)

According to the question,

→ \(\beta = \frac{45-14}{2}\)

      \(= \frac{31}{2}\)

      \(= 15.5 \ Ksi\)

hence,

The safety factor will be:

= \(\frac{Endurance \ limit}{\beta}\)

= \(\frac{38}{15.5}\)

= \(2.452\)

(b)

→ \(\beta_2 = \frac{45+14}{2}\)

       \(= \frac{59}{2}\)

       \(= 29.5 \ Ksi\)

Ration will be:

= \(\frac{\beta}{\beta_2}\)

= \(\frac{15.5}{29.5}\)

= \(0.5254\)

By applying Goodman method,

→ \(Sa = \frac{0.5254\times 38\times 76}{0.5254\times 76+38}\)

       \(= 19.47 \ Ksi\)

hence,

The safety factor will be:

= \(\frac{Sa}{\beta}\)

= \(\frac{19.47}{15.5}\)

= \(1.256\)

Thus the above response is correct.

Learn more about mean stress here:

https://brainly.com/question/20116607

The reason for low power factor in no load test in induction motor is high rotor reactance at lower loading since the rotor reactance value gets decreased with increased loading on induction motor

Usually at no load, the Cosine of the phase angle between the stator current(I1) and the stator applied voltage(V1) is the power factor of an induction motor.

In conclusion, the reason for low power factor in no load test in induction motor is high rotor reactance at lower loading since the rotor reactance value gets decreased with increased loading on induction motor

Read more about induction motor

brainly.com/question/1049516

Answer:

YES

Explanation:

NO

;-;

Answer:

yes

Explanation:

ooooooooooooooooooooooooooooooo

Answer:

A ultra 4. that would be amazing to have that.

Answer:

I have know idea

Explanation:

There are different kinds of Ac motors. If the goal is to power three-phase AC motor, the three-phase motor can be run from a single-phase power source.

The act of running a three phase motor on single phase power is very possible. The thing one has to do is  to connect or wire the single phase power to the input side of the variable frequency drive that one has and then connect or wire the three phase power of one's motor to the output part of the drive.

Conclusively, A three phase system is known to be able to send a lot of power when viewed with the single phase system.  The three circuit conductors is known to have three alternating currents

Learn more about single-phase power from

https://brainly.com/question/15776766

Answer:

The Negative battery cable is used to bolt the vehicle frame to allow the metal structure of the vehicle to serve as a large conductor to carry current.

Explanation:

Battery cable is large automotive cable. Like smaller types of automotive wire, it is available in PVC and cross-linked forms. Click here to read an earlier post explaining the differences between PVC and cross-linked wire insulation.

One type of PVC battery cable is SGT cable. It is rated to 80°C and therefore can be used in starters or battery grounds.  Cross-linked battery cables can also be used in starter and battery ground applications, and they are more resistant to heat, abrasion, and aging than PVC cable.

Two types of cross-linked battery cable are SGX and STX. They are rated to 125°C. Of the three types of battery cable (SGT, SGX, amd STX), STX has the thinnest wall, making it a popular choice for automotive applications with limited space.

To learn more about this visit the link:

https://brainly.com/question/26923743

https://brainly.com/question/29354736

The reason an engineer may choose to use a prefabricated  building component is because: D. She wants the construction to move quickly.

A prefabricated  building component is also referred to as prefabs and it can be defined as a component that is fully manufactured to standard in a manufacturing plant or factory and then transported to a construction site, for partial assemblage and usage by an engineer. Some examples of prefabricated  building components are:

Generally, the two (2) main reasons why an engineer may choose to use a prefabricated  building component are:

I. To minimize negative environmental impacts by using standard materials from the manufacturing plant or factory.

II. To make the construction process move quickly.

Read more on prefabs here: https://brainly.com/question/15799927

To calculate the new total effective stiffness of the bridge in the longitudinal direction after the rehabilitation and strengthening of the columns in Bent 1, we need to consider the change in column radii.

Let's denote the original column radii as R_original and the increased column radii as R_new. The increase in column radii is given as 15% of the original size, so we can calculate R_new as:

R_new = R_original + 0.15 * R_original

= 1.15 * R_original

Next, we need to consider the effect of the increased column radii on the bridge's total effective stiffness. The effective stiffness of a column is influenced by its moment of inertia (I) and the modulus of elasticity of the material (E).

Since the concrete is assumed to be uncracked, we can use the gross section properties.

The moment of inertia of a circular column is given by:

I = (π/4) * R⁴

The effective stiffness of a column is given by:

K = E * I / L

where E is the modulus of elasticity of the material and L is the length of the column.

To compare the new total effective stiffness to the original stiffness, we need to calculate the ratio of the new effective stiffness (K_new) to the original stiffness (K_original) and express it as a percentage increase.

Let's assume that all other parameters, such as the modulus of elasticity and the length of the columns, remain unchanged during the rehabilitation process.

Calculate the new moment of inertia (I_new) using the increased column radii:

I_new = (π/4) * R_new⁴

Calculate the new effective stiffness (K_new) using the new moment of inertia and the original parameters:

K_new = E * I_new / L

Calculate the ratio of the new effective stiffness to the original stiffness:

Ratio = K_new / K_original

Calculate the percentage increase in stiffness:

% Increase = (Ratio - 1) * 100

By following these steps, you can determine the new total effective stiffness of the bridge in the longitudinal direction and compare it to the original stiffness as a percentage increase.

To know more about moment of inertia visit:

https://brainly.com/question/30781440

#SPJ11

Because it is an excellent conductor, copper is used for the majority of electrical wiring, and shorter cables reduce the resistance of wires carrying an electric current.

1)smaller wires

2)NOT X: Electron flow

Y: Lots of potential energy

Z: Minimal potential energy

3)Volts

4) It has strong conductivity.

5) The charges move more slowly in current Y because of the larger potential difference.

6)NOT

insulator,

semiconductor,

conductor,

superconductor

7)Differences in electric potential  

8) a cold slice of lead metal

9) Electrons flow between regions with high and low electric potential.

10) long and lean

The copper produced by electrolysis is known as pure copper or electrolytic copper. Numerous types of electrical wiring use copper as its electrical conductor. Electricity is produced, transmitted, and distributed via copper wire in telecommunications, electronic circuits, and a variety of other electrical devices.

Learn more about Wires here:

https://brainly.com/question/13550678

#SPJ4