Suppose with 200 n of force applied horizontally to your 1500 n refrigerator that it slides across your kitchen floor at a constant velocity. what are the friction forces on the refrigerator?

The car with an initial speed of 66 km/s will come to a complete stop at 22 s

The formula for Uniformly varied rectilinear motion (UVRM) and procedure we will use to solve this exercise is:

t = (vf - vi) /a

Where:

Information about the problem:

Applying the time formula, we have:

t = (vf - vi) /a

t = (0 m/s - 66 km/s) / - 3 km/s2

t = (- 66 km/s) / - 3 km/s2

t =  22 s

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

Learn more about acceleration at: brainly.com/question/14344386

#SPJ4

The solvents that are not commonly used for acquiring a 1H NMR spectrum are the ones that contain [tex]^{1} H[/tex] nuclei.

[tex]^{1} H[/tex] NMR is also called as Proton Nuclear Magnetic Resonance. It is a method used to determine the structure of molecules of a substance.

For this [tex]^{1} H[/tex] NMR to work perfectly, the solvents must not contain  [tex]^{1} H[/tex] nuclei. That is why Deuterated solvents are used. Some of the examples of deuterium solvents are chloroform, dimethyl sulfoxide, heavy water, etc.

Therefore, the solvents that are not commonly used for acquiring a 1H NMR spectrum are the ones that contain [tex]^{1} H[/tex] nuclei.

To know more about Deuterated solvents

https://brainly.com/question/15228046

#SPJ4

The gold sheet used was around 1000 atoms thick.

The Rutherford observed that the use of aluminium foil will be better instead of gold foil, the reason is given below. The gold is very cheap metal so due to this property it can be easily turned into thin thin foil, Rutherford wants the thinnest layer as thin as possible. If any other metal foil is used in place of gold then also there will be no change in the observations if the metal foil to be used is as thin as gold foil.

So we can conclude that the gold sheet used was around 1000 atoms thick.

Learn more about Gold Foil here: https://brainly.com/question/730256

#SPJ1

With an increase in strain rate, ductility decreases and tensile strength increases. Option b. decreases, increases is the correct answer

The ductility of materials decreases as the strain rate rises. The reason is that the material exhibits brittle behaviour. Material increases in tensile strength.

Ductility: A material's ductility refers to its capacity to withstand plastic deformation or drawing without breaking. As a result, it provides information on how "soft" or pliable the material is.

Tensile strength: Maximum load a material can bear without breaking when it is stretched, divided by the material's initial cross-sectional area.

Therefore, option b. is the correct answer for the given question

Learn more about tensile strength:

https://brainly.com/question/14293634

#SPJ4

An encryption can be defined as a form of cryptography and it typically involves the process of converting or encoding information in plain text into a code, known as a ciphertext. Generally speaking, an information or data that has been encrypted it can only be accessed and deciphered by an authorized user.

This ultimately implies that, an encryption simply refers to a utility which can be used by an end user to to secure his or her sensitive information from unauthorized access or theft by a hacker (attacker).

In Computer programming, some examples of encryption algorithms include the following:

In Computer technology, a defragmentation utility helps to reorganize (rearrange) the data stored on a disk drive and as such, it would make a computer system to run faster. Also, a compression utility is a type of utility which can be used to reduce the size of a large video file that is to be sent through an email.

Read more on defragmentation utility here: https://brainly.com/question/14237107

#SPJ1

Since the speed is the same through out, acceleration for the trip will be zero.

Acceleration is the rate at which velocity is changing. It is a vector quantity.

If you ride your bike at a constant speed of 5 m/s for 300 s from your house to the mailbox, your acceleration for the trip will be equal to zero.

Because Acceleration = Change in speed ÷ time

Since the speed is constant, acceleration = 0/time = 0

Therefore, the acceleration for the trip is zero.

Learn more about Acceleration here: https://brainly.com/question/14344386

#SPJ1

Answer:

0 m/s^2

Explanation:

No change in speed or direction = constant velocity = no acceleration.

A measure of central tendency called the mean can be a particularly biased or misleading measure of central tendency when there are a few extreme scores.

"The statistical metric that identifies a single value as representative of an entire distribution" is the definition of central tendency. It strives to give a precise account of all the facts. It is the lone value that best typifies or reflects the information gathered.

The mean, median, mode, and the midrange are the four indicators of central tendency. The arithmetic mean of the maximum and minimum values in a data set is used here to describe the midpoint or mid-extreme of a set of statistical data values.

A dataset's arithmetic mean (which is distinct from its geometric mean) is calculated by dividing all of the values by the total number of values. Due to the fact that the computation takes into account all values, it is the most widely used central tendency measure.

Learn more about measure of central tendency:

https://brainly.com/question/17631693

#SPJ4

Answer:

Physical science

Explanation:

Answer:

1.8 seconds

Explanation:

Ignoring air friction

d = 1/2 at^2

15    = 1/2 (9.81) t^2    shows  t = 1.75 = 1.8 seconds

Each capacitor carries a charge of 1/3q as they are identical.

#SPJ4

Answer:43

Explanation: 30,30,40,40,40,50,50,50,50,50

The y-component of the vector is 4.97 m.

A vector is a quantity that has both magnitude and direction.

To calculate the y-component of the vector in the diagram above, we use the formula below.

Formula:

From the question,

Given:

Substitute these values into equation 1

Hence, the y-component of the vector is 4.97 m.

Learn more about vectors here:https://brainly.com/question/25705666

#SPJ1

In a news release, using a consumer who is happy with a particular good or service as a testimonial might be persuasive.

Consumers are described as people or organizations who utilize or consume goods and services. Customers might be consumers or exist solely as customers; they are the buyers of products and services inside the economy.

Businesses may select how to promote their goods and services most effectively by comprehending how consumers think, feel, and make decisions. This aids in predicting consumer behavior and helps marketers promote their already-available goods and services.

Consumer behavior is the study of how consumers choose things based on their needs, wants, and desires as well as how they purchase and utilize them.

To learn more about the consumer, Visit: https://brainly.com/question/28215693

#SPJ4

The height has to change by a factor of 1.

We can obtain the height from which the object falls using the equations of kinematics under gravity. We can see that the object was dropped from a height thus u = 0 m/s.

We can the write;

v= √2gh

h1 = v^2/2g

When the final velocity is doubled, we have;

2v= √2gh

h2 =4v^2/2g

h2 = 2v^2/g

The height changes by;

2v^2/g - v^2/2g = v^2/g

Thus the height has to change by a factor of 1.

Learn more about height of an object:https://brainly.com/question/14451550

#SPJ1

When I accelerate uniformly from 17.5 m/s to 29.5 m/s in a time of 11.1 s, I travel 260.85 m

The formula for Uniformly varied rectilinear motion (UVRM) and procedure we will use to solve this exercise is:

x = [(vi + vf) /2] * t

Where:

Information about the problem:

Applying the distance formula, we have:

x = [(vi + vf) /2] * t

x = [(17.5 m/s + 29.5 m/s ) /2] * 11.1 s

x = [(47 m/s ) /2] * 11.1 s

x = (23.5 m/s) * 11.1 s

x = 260.85 m

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

Learn more about acceleration at: brainly.com/question/14344386

#SPJ4

In a lab setting, a systematic error frequently causes high precision with low accuracy. Either the measurer consistently makes the same error, or the measuring device has a fault. Even while a badly calibrated balance might consistently read the same mass, it will be far lower than the actual mass of the object.

Accuracy is defined as "the degree to which the outcome of a measurement adheres to the correct value or a standard. basically refers to how closely a measurement fits the established value." The degree to which the outcome of a measurement complies to the proper value or a standard," is how accuracy is defined.

The more traditional term is "accuracy of measurement," which is defined as "... the degree to which the outcome of a measurement agrees with the genuine value of the thing being measured."

To learn more about accuracy, visit: https://brainly.com/question/13377944

#SPJ4

Answer: A radio wave is generated by a transmitter and then detected by a receiver. An antenna allows a radio transmitter to send energy into space and a receiver to pick up energy from space. Transmitters and receivers are typically designed to operate over a limited range of frequencies.

Explanation:

When an object falls through the air, its velocity increases and its acceleration decreases.

A vector measurement of the rate and direction of motion is what is meant by the term "velocity." Simply said, velocity is the rate of movement in a single direction. Velocity may be used to gauge both the speed of a rocket launching into space and the speed of a car traveling north on a busy freeway.

As you might have anticipated, the velocity vector's scalar (absolute value) magnitude corresponds to the motion's speed. The first derivative of position with respect to time is known as velocity in calculus. There is a straightforward formula that combines rate, distance, and time to calculate velocity.

The following method is the most typical approach to get the constant velocity of an item traveling straight ahead:

r = d / t

The rate or speed is r. (sometimes denoted as v for velocity)

d is the traveled distance.

t is the amount of time needed to finish the movement

To learn more about the,  velocity  visit:

https://brainly.com/question/18545524

#SPJ4

According to the net force, the acceleration of the book is 16.47 m/s².

We need to know about force to solve this problem. According to second Newton's Law, the force applied to an object will be proportional to mass and acceleration. Hence, it can be written as

∑F = m . a

where F is force, m is mass and a is acceleration

From the question above, we know that

m = 3 kg

g = 9.8 m/s²

F1 = 20 N

Find the net force

∑F = F1 + W

∑F = 20 + m . g

∑F = 20 + 3 . 9.8

∑F = 20 + 29.4

∑F = 49.4 N

Find the acceleration

∑F = m . a

49.4 = 3 . a

a = 16.47 m/s²

Find more on force at: https://brainly.com/question/25239010

#SPJ4

The power generated by 1.4 m high waves is 1.69 kW.

We need to know about power to solve this problem. The power generated by waves can be determined as

P = 1/2 . μ . ω² . A² . v

where P is power, μ is the constant of wave media, ω is angular speed, A is amplitude and v is wave speed.

Power is proportional to amplitude squared. Hence

P ~ A²

From the question above, we know that

P1 = 8.5 kW

A1 = 1.4 m

A2 = 0.625 m

By using the ratio of power, we can write

P1 / P2 = A1² / A2²

8.5 / P2 = 1.4² / 0.625²

P = 1.69 kW

Find more on power at: https://brainly.com/question/25263760

#SPJ4

The direction of the reaction force on the collar will be Non constrained motion direction .

ω = v / r

Since the cylinder is wrapped about the string, it rolls without slipping with respect to the string. The constraint  relationship to assure this kind of motion can be obtained by considering the relative velocity of the point on the  cylinder that is in contact with the string with respect to the string­­ it  should be zero.

The velocity of the center of the cylinder,

v = dy (t) / dt,  r and the  rotation rate of the cylinder, ω

We have to first find the velocity of the contact point relative to the center of the cylinder. Since this ignores the  translational motion of the entire cylinder with respect to the ground, we then need to add back in the cylinder's center­ of ­mass velocity to find the velocity of the contact point with respect to the ground.

So, v (contact) = ωr - v  where,

ω is the angular velocity

v is the linear velocity

r is the radius

ω = v / r

To learn more about velocity , visit :

https://brainly.com/question/15305930

#SPJ4

At rest, when travelling at a constant speed, and when in mechanical equilibrium, there is no acceleration and answer choice D is correct.

In mechanics, acceleration describes the rate at which a driving object's velocity changes over time. They are accelerations and vector quantities. The direction of an object's acceleration is determined by the direction of the net force acting on it. Depending on whether an object is moving faster, slower, or in a different direction, its velocity may change. Examples of acceleration include a falling apple, the moon orbiting the earth, and a car that has stopped at a stop sign. The car is positively accelerating if the speed is increasing. As the car slows down, its speed decreases. A decline in speed is referred to as negative acceleration. In both situations, the car is traveling ahead, yet one has a positive acceleration and the other a negative one.

To learn more about acceleration, click here:

https://brainly.com/question/2303856

#SPJ4

The maximum number of comparison is 4502

Binary array : it is an array consist of only 0s and 1s only.

Binary search - an efficient algorithm for finding items from a sorted list.

it is called binary because it divide array into tow halves.

It is used to excess data more faster when the space is tight.

binary search will search the array by dividing it into two halves till it find the value.

The main advantage of it is that is more quicker than a serial search.

binary search algorithm can be implemented in the two ways :

1. Iteration method

2. Recursive method

the maximum number of comparisons is 4502.

To know more about binary array :

https://brainly.com/question/28346440

#SPJ4

Option C: A semiconductor device containing transistors, capacitors, and resistors is called an integrated circuit.

The semiconductor device known as a transistor is used to switch or amplify electrical impulses.

One of the fundamental components of contemporary electronics is the transistor. It is made of semiconductor material and typically has at least three terminals for connecting to an electronic circuit.

The current flowing through another pair of the transistor’s terminals is controlled by the voltage or current provided to one set of those terminals.

A transistor can magnify a signal because the regulated (output) power can be greater than the controlling (input) power. Although many more transistors are found embedded in integrated circuits, some are packaged individually.

The first field-effect transistor was developed in 1947 by American physicists John Bardeen and Walter Brattain while working for William Shockley at Bell Labs.

The concept of a field-effect transistor was first proposed by the Austrian-Hungarian physicist Julius Edgar Lilienfeld, but it was not possible to actually build a working device at that time. The three received a shared 1956 Nobel Prize in Physics for their achievement.

To know more about semiconductors, visit:

https://brainly.com/question/15184439

#SPJ4

Answer:

The difference between observations and inferences is observations uses one or more of your five senses to know or determine something. However, inferences are where you make an explanation for the observation. For example, you see steam rising off a coffee cup ( this is an observation). The coffee is hot ( this is an inference).

Given,

The magnitude of the resultant force is 39.7 N and makes an angle of 49.5° with the x-axis.

The two given forces are vectors, thus they have to be resolved horizontally and vertically to determine their resultant.

So that:

 Horizontal component = F Cos θ

  Vertical component = F Sin θ

Thus, given that: a = 28 lb at 45° on x & y axis, and b = 12 lb at 30° below x-axis.

i. Resolving the vector horizontally, we have:

horizontal component = 28 Cos 45° + 12 Cos 30°

                                    = 19.80 + 10.39

horizontal component, x  = 30.19

ii. Resolving the vectors vertically, we have:

vertical component = 28 Sin 45° + 12 Sin 30°

                               = 19.80 + 6.0

vertical component, y  = 25.80

a. Magnitude of the resultant force, |R| = [tex]\sqrt{x^{2} + y^{2} }[/tex]

= [tex]\sqrt{(30.19)^{2} +(25.80)^{2} }\\\\[/tex]

= 39.7124

|R|     = 39.7 Newtons

b. The angle that the resultant makes with the positive x-axis can be determined by:

[tex]Tan\ \theta = \frac{x}{y} \\\\\theta = Tan^{-1} \frac{30.19}{25.80} \\\\= 49.4832\\\\\theta = 49.5\textdegree[/tex]

Therefore, the magnitude of the resultant force is 39.7 N and makes an angle with the x-axis.

Learn more about resultant here:

https://brainly.com/question/19492935

#SPJ4

The major difference is the cleavage of isocitrate by isocitrate lyase, resulting in succinate and glyoxylate, as opposed to the breakdown of isocitrate by isocitrate dehydrogenase.

A variant of the tricarboxylic acid cycle called the glyoxylate cycle is an anabolic mechanism that may be found in fungus, bacteria, protists, and plants. In order to synthesize carbohydrates, acetyl-CoA is converted to succinate in the glyoxylate cycle. When simple sugars like glucose or fructose are not available, the glyoxylate cycle in microorganisms enables cells to employ two carbons (C2 molecules) like as acetate to meet cellular carbon needs. Animals are often thought to lack the cycle, with the exception of nematodes during the early stages of embryogenesis.

To know more about glyoxylate cycle, visit;

https://brainly.com/question/15724553

#SPJ4

The rate at which the height is changing is ( 5 / x ) m / hr

We know that,

Area of an equilateral triangle A = [tex]\sqrt{3}[/tex] [tex]x^{2}[/tex] / 4

h = [tex]\sqrt{3}[/tex] x / 2

Where,

x = Side

h = Height

Given that,

dA / dt = 5 [tex]m^{2}[/tex] / hr

h = [tex]\sqrt{3}[/tex] x / 2

Differentiate both sides with respect to t

dh / dt = ( [tex]\sqrt{3}[/tex]  / 2 ) ( dx / dt )

dx / dt = ( 2 /  [tex]\sqrt{3}[/tex] ) ( dh / dt )

A = [tex]\sqrt{3}[/tex] [tex]x^{2}[/tex] / 4

Differentiate both sides with respect to t

dA / dt = ( [tex]\sqrt{3}[/tex] / 4 ) ( 2x ) ( dx / dt )

5 =  ( [tex]\sqrt{3}[/tex] / 4 ) ( 2x ) ( 2 /  [tex]\sqrt{3}[/tex] ) ( dh / dt )

dh / dt = ( 5 / x ) m / hr

Rate of change of height is defined as the rate at which height of an object changes with respect to time. It is represented as dh / dt

Therefore, the rate at which the height is changing is ( 5 / x ) m / hr

To know more about Rate of change of height

https://brainly.com/question/13283964

#SPJ4

Work done is 158 joule

Given that, the force of a moving object is,

F = (8i - 6j + 9k) N

The object is moving from point (0,10,8) to the point (6,12,20)

Now we can calculate the displacement by the formula,

dr = (x2-x2)i + (y2 - Y2)j + (z2 - z2)k

Put all the values from the given values.

dr = (6 - 0)x + (12 - 10)j + (20 - 8)k

dr = (6i-2j+12k) meters

Now, the work done can be calculated as,

W = F.dr

W = (8i - 6j + 9k).(6i-2j+12k)

W = 158 J

Hence, work done is 158 joule

Learn more about Work here:

https://brainly.com/question/25573309

#SPJ4

The correct answer is option A. Water is not a state/ phase of matter

States are those phases that describe its physical attributes as well as how its constituent particles are arranged. Solid, liquid, gas, and plasma are the four main states of matter that can exist.

When something melts, it transitions from a solid to a liquid condition.

Water has a freezing point of 0°C.The melting point of flour is around 220 degrees Celsius, which is greater than that of salt and sugar. Sublimation is the process by which a solid transforms into a gaseous state, as in the case of camphor. Examples of changes in the states of matter include the melting of ice, the freezing of water, the burning of camphor, the melting of wax, and the production of precipitates.

To know more about the states of matter visit:

https://brainly.com/question/19746836

#SPJ4