what does a profilometer do? question 11 options: measures the wavelengths of light emitted or absorbed by an object separates items for chemical analysis uses a laser to measure the heights and depths of toolmarks allows the examiner to see the evidence toolmark and the reference toolmark simultaneously

The best suitable answer is Option 4 " The driver experienced centrifugal "force" which was actually just his inertia .

What is centrifugal force ?

A hypothetical force called centrifugal force, which is unique to particles travelling in a circle, is a force that has the same strength and dimensions as the centripetal force, but acts in the opposite direction.

A stone rotating in a horizontal plane while attached to a string that is fastened to a ground-based post experiences a constant change in velocity and acceleration in the direction of the post. The square of the speed divided by the length of the string gives us the acceleration.

To learn more about the centrifugal force ,click the link ;

https://brainly.com/question/954979

#SPJ13

Amplitude modulation, or AM, is a modulation method used in electronic communication, most frequently for radio wave transmission of messages.

To Learn more About Amplitude modulation refer to :

https://brainly.com/question/10060928

#SPJ4

The tension in the tow rope that is pulling the skier is 5283.33 N

since we are given the  average power of 2.74 × 10^4 W., with a speed of 12 m/s. So, the tension acting on the motor at this point is :

P= T X v

T = P/v =2.74 × 10^4/ 12 =2283.33 N

For the  second case, the average  power is 9.20 × 10^4 W, so the tension  will be  :T = P/v = 9.20 × 10^4 /12 =  7666.66

so the tension in the tow rope is :  7666.66 -2283.33 =  5283.33 N

To know more about speed refer to the link https://brainly.com/question/7359669?referrer=searchResults.

#SPJ4

the motor of a ski boat generates an average power of 2.74 × 10^4 W when the boat is moving at a constant speed of 12 m/s . when the boat is pulling a skier at the same speed, the engine must generate an average power of 9.20 × 10^4 W. what is the tension in the tow rope that is pulling the skier?

Explanation

a) The velocity will never be zero. The velocity at the highest point of the projectile will be the smallest, equal to the horizontal component of the initial velocity.

b) The velocity will be zero when the kinetic energy is zero. When kinetic energy is at its lowest, potential energy is at its highest. Because potential energy is greatest at the highest point, velocity is greatest at the highest point.

c) Because a constant force of gravity acts on the projectile at all times, velocity will never be the same as initial velocity.

d) When the bullet bounces back and strikes the ground, the speed equals the initial speed (at t = 0), because the height is zero and the kinetic energy is equal to the initial energy.

To learn more about velocity, refer to

https://brainly.com/question/24681896

#SPJ4

A binary star system consists of two stars that are gravitationally sure and orbit each other. Binary stars in the night time sky appear as a single object to the bare eye, but telescopes frequently remedy them as separate stars.

A binary stars have orbit a common center of mass. The first one star is brighter of the two, and other is the fainter (classified as A and B, respectively).

Visual binaries : A visual binary system is a binary system in which each individual star in the system can be individually resolved with a telescope. Longitudinal observations can then be made to indicate the relative positions of the members of the system. Over time, this data is collected and used to calculate star orbits. Visual binaries tend to be systems that are relatively close to us, being able to resolve individual stars.

Eclipse Binary system : Photometry is used as a third technique for detecting binary structures. the obvious value of many stars changes regularly. this could be due to one of two elements. It can be a single star that has its inherent luminosity change. Such stars are called pulsating variables . the second alternative is that it's far a binary gadget with an orbital plane that is side-on to us, inflicting the issue stars to frequently eclipse each other. Such systems are referred to as eclipsing binary structures.

Spectroscopic binaries : A binary star having components that are not sufficiently separated to be resolved by a telescope, known to be a binary only bythe variations in wavelength of emitted light that are detected by a spectroscope.

Spectroscopic binaries are seen from their line spectrum, by means of following the Doppler shift .

To learn more about Binary star system, refer:

https://brainly.com/question/26966644

#SPJ4

A proton and electron separated by 1.0 x 10-10 meters exert 1.0 x 10-47N of gravitational force on each other.

The gravitational force will bring together any two mass-containing objects. The gravitational force is described as attracting because it consistently tries to draw masses together and never tries to push them apart. In reality, you and every other item in the universe are pulling toward one another.

What is the origin of gravity?

All of the mass on Earth is what creates gravity. The cumulative gravitational attraction of all of its mass exerts pressure on all of the body's mass. Your weight is determined by that. Furthermore, your weight would be lower if you were on a planet with a lower mass than Earth.

To know more about  gravitational force visit:

https://brainly.com/question/24783651

#SPJ13

The correct answer is option D.

Vertical wind shear changes in wind direction with horizontal distance.

Generally, atmospheric wind is referred to as vertical or horizontal wind shear. It is also called wind gradient.

Simply put, win shear is defined as the change in wind speed over a particular distance.

More specifically, vertical wind shear refers to the alter in wind speed along altitude while the horizontal change refers to the change in wind speed that occurs along lateral side or position of the atmosphere in a given altitude.

If you need to learn more about wind click here:

https://brainly.com/question/1420586

#SPJ4

The final speed of the car and minivan is 17.95 m/s

The mass of the car = 950 kg

The speed of the car = 22 m/s

The mass of the minivan = 1300 kg

The speed of the minivan = 15 m/s

The final speed of the car and minivan can be found using the conservation of momentum formula,

                 [tex]\displaystyle m_{1}v_{i1 } + m_{2}v_{i2} = m_{1}v_{f1} + m_{2}v_{f2}[/tex]

where [tex]\dispplaystyle m_{1}[/tex] is the mass of the car

           [tex]\dispplaystyle m_{2}[/tex] is the mass of the minivan

           [tex]\dispplaystyle v_{i1}[/tex] and [tex]\dispplaystyle v_{i2}[/tex] is the initial speed of the car and minivan respectively.

          [tex]\dispplaystyle v_{f1}[/tex] and [tex]\dispplaystyle v_{f2}[/tex] is the final speed of the car and minivan respectively.

As the two cars move together, they would have the same final speed, i.e.

                    [tex]\dispplaystyle v_{f1} = \dispplaystyle v_{f2} = \dispplaystyle v_{f}[/tex]

Thus, the above equation becomes,

                      [tex]\displaystyle m_{1}v_{i1 } + m_{2}v_{i2} = (m_{1} + m_{2})v_{f}[/tex]

Let us substitute the known values in the above equation, we get

                       (950 x 22) + (1300 x 15) = (950 + 1300) [tex]\displaystyle v_{f}[/tex]

                                  20,900 + 19.500 = 2,250 [tex]\displaystyle v_{f}[/tex]

                                                  40,400 = 2,250[tex]\displaystyle v_{f}[/tex]

                                     40,400 / 2,250 = [tex]\displaystyle v_{f}[/tex]

                                                               = 17.95 m/s

Therefore, the final speed is 17.95 m/s

Learn more about the conservation of momentum in

https://brainly.com/question/1603406

#SPJ4

The magnitude of the force from the ground on each front wheel is  2775N.

Let us call the force on the front axle  F   and the force on the rear axle  R.

We know that    

⇒  F + R= total weight of vehicle  =  1360 * 9.80 =   13328 Newtons

And using torques, you know that  force on the front axle * distance to the center of mass  =  force on the rear axle * distance to the center

of mass

or         F *1.78   =  R * (3.05 - 1.78)

 So

   1.4016F  =  R

Then.

F +  1.4016 F  =  13328

F =   5550 N       and     R = 13328 - 5550  =  7778N

So the force on each front tire is    5550 /2  =   2775N

And the force on each rear tire is    7778 /2  =   3889N

Force is a push or pulls upon an item because of the object's interaction with some other object. Pressure is a power that can exchange the motion of an object. A force can reason an object with mass to alternate its speed, i.e., to boost up. pressure also can be described intuitively as a push or a pull. A force has each significance and course, making it a vector amount.

Learn more about force here:-https://brainly.com/question/12970081

#SPJ4

The magnetic force between the two parallel wires is 2.24 x 10⁻³ N/m.

The magnetic force between the two parallel wires is calculated by applying the following kinematic equation as shown below.

F/L = μI₁I₂/2πr

where;

The magnitude of the magnetic force per meter (in n/m) exerted on each wire is calculated as;

the current in the first wire = the current in the second wire = 74 A

Substitute the given parameters and solve for the force per unit length of current between the two parallel wires.

F/L = ( 4π x 10⁻⁷ x 74 x 74)/(2π x 0.49)

F/L = 2.24 x 10⁻³ N/m

Learn more about magnetic force here: https://brainly.com/question/13277365

#SPJ1

One way to avoid EMI problems is to use fluorescent lights. Option B.

Fluorescent lights deteriorate quickly especially if they are installed in a place where they are turned on and off frequently. Fluorescent lights shorten their life each time they are turned off and on. This can lead to premature failure and you will end up spending more money replacing bulbs more often.

EMI from fluorescent lighting systems is rare. Designers considering the use of electronic ballasts can greatly reduce the potential for EMI problems with careful planning. EMI is caused by the close relationship between electricity and magnetism. Any flow of electricity creates a small magnetic field. Conversely when the magnetic field moves an electric current is generated.

Learn more about Fluorescent lights here:-https://brainly.com/question/765124

#SPJ4

The work done by the constant force to pulled the elevator upward is 275000 Joules.

The work done by any force is given by,

W = Fa

Where,

W is the work done,

F is the force applied,

s is the displacement along the direction of the force,

The force applied on the elevator to pull it upward is 5500N and the distance to which the elevator is pulled is 50 m.

Now, putting values,

W = 5500(50)

W = 275000 Joules.

So, the work done by the force to pull the elevator upward is 275000 Joules.

To know more about Work, visit,

https://brainly.com/question/25573309

#SPJ4

When plates commute in the exact direction it collides, and the plates move to other at convergent boundaries.

The lighter, dense, and much more elastic oceanic plate dips underneath the thicker, more stiff continental plate whenever a continental plate encounters a marine plate.

It's known as subduction. Deep ocean trenches, like the one that runs down South America's west coast, are created by subduction.

The continent's undercut rocks start to melt. On occasions, a chain of eruptions forms as the hot magma rises to the surface and travels through the continent.

Nearly 80% of earthquakes happen along convergent borders when plates are being pushed together.

Destruction, when two continental plates crashes, is just another kind of convergent boundary. The plates collapse and are propelled upward since neither is heavier compared to the other.

Read more about convergent boundaries here

https://brainly.com/question/28002759

When approaching the root of an equation, the Newton-Raphson method will quickly converge. this is a false.

" Root is a mathematical symbol that stands for the square root symbol or square root sign. In words, we call this symbol radical. The various types of symbols that are used to carry out arithmetic operations may have been covered in your math classes. In mathematics, the square root of any number is denoted by the root symbol.

As an illustration, 2 is used to symbolize the square root of 2. Similarly, for other natural numbers like 5, 6, 7, 8, 10, etc., we can write their corresponding square roots as 5, 6, 7, 8, and 10, respectively. The square root that is positive is always represented by this symbol.

Radicand: The number that appears beneath the root is referred to as the radicand, not the square root symbol.

Learn more about root here:

https://brainly.com/question/15649347

#SPJ4

The motor is an excellent invention for Allison to use as a model for her device.

People use both interchangeably, but the difference is that motors run on electricity and engines run on combustion. The engine converts various forms of fuels into mechanical force, while the motor transforms electrical energy into mechanical energy.

They operate using principles of electromagnetism, which shows that a force is applied when an electric current is present in a magnetic field. This force creates a torque on a loop of wire present in the magnetic field, which causes the motor to spin and perform useful work.

Learn more about motor here:- https://brainly.com/question/866077

#SPJ4

A block of mass 0.260 kg is placed on top of a light, vertical spring of force constant 5 025 n/m and pushed downward. After the block is released, the spring will travel upward to the maximum height of 10.86 meters.

The relation between the potential energy on a string and the length it stretches is given by:

E = 1/2 . kx²

Where:

k  = spring constant

x = spring stretch or compression

In the given problem:

k = 5,025 N/m

x = 0.106 m

Hence,

E = 1/2 . 5025 . (0.106)²

m . g . h =  1/2 . 5025 . (0.106)²

Where;

m = mass

h = height from the release point.

Hence,

0.260 x 10 x h = 28.23

h = 10.86 m

Therefore, the spring will travel upwards up to 10.86 m

Learn more about potential energy here:

https://brainly.com/question/21021510

#SPJ4

The net force on both the cars car a and car B will be zero.

According to the first law of motion stated by Newton,

An object would continuously written it's state of motion or rest if the net force on the object is zero. It means that, no matter how many forces are working on the body if they all cancel out each other and the net force becomes zero the body will continue it's same state.

Also according to second law of Newton,

The force is rate of change of momentum with respect to time.

F = ma

Here, both the cars the car A of mass 500 kg and the car B of mass 800 kg are moving with a constant velocity of 20 m/s and 15 m/s respectively.

If the velocity of the car is not changing with time it means that there is no acceleration on the body.

If there is no acceleration on the body, then there is no net force on the body.

So, we can conclude hair that the net force on the cards is zero.

To know more about Newton's laws of motion, visit,

https://brainly.com/question/25842103

#SPJ4

When the proton starts to move upward the direction of the magnetic force changes and when the proton moves straight up the magnetic force turns to the left.

The direction of the force is perpendicular to the direction of the magnetic field and current, as given by Fleming's left-hand rule. Here the magnetic field is to the right and the direction of the current is upward. Protons feel a force on themselves due to the magnetic field. The force on the proton is proportional to the proton's magnetic flux density and velocity.

The velocity and momentum of a proton are affected by the force acting on it. If the velocity of a charged particle is perfectly parallel to the magnetic field, the magnetic field exerts no force on the particle, so the velocity remains constant. The momentum of a proton moving freely in a magnetic field is the product of the proton's mass and the proton's velocity. As the speed of a proton moving in a magnetic field changes, so does the momentum of the proton.

Learn more about The magnetic field here:-https://brainly.com/question/14411049

#SPJ4

The variational technique is one strategy to approximate the ground state with the lowest energy and some stimulated states in quantum mechanics.

To Learn more About  quantum mechanics refer to :

https://brainly.com/question/26095165

#SPJ4

The work done by the tension in the string on the ball - tension does no work at all is the correct answer.

The forces tugging on the rope from either end cause the tension in a particular strand of string or rope. Keep in mind that force is defined as mass times acceleration. If the rope is stretched tightly, any change in the mass or acceleration of the objects it is supporting will result in a change in the tension of the rope.

A force known as tension is particularly effective on medium-length materials like rope and cable that are also flexible. A gravitational force still exists in tension. When the body is traveling upward, the tension is denoted by the formula T = W + ma. The thickness is the same as T = W - ma when the body descends.

To know more about tension visit:

https://brainly.com/question/28874730

#SPJ4

The speed limit for a curved stretch of road with the coefficient of friction between the wheels and the road is 0.7 when the road is dry and 0.3 when the road is wet is √ 2.94 r m / s

Fc = m ac

Ff = μ N

N = m g

Fc = Centripetal force

m = Mass

ac = Centripetal acceleration

Ff = Frictional force

μ = Co-efficient of friction

N = Normal force

μ = 0.3 ( Wet value to taken to provide zero skidding under any condition)

g = 9.8 m / s²

The only force that is providing the centripetal force is frictional force.

m ac = μ m g

ac = 0.3 * 9.8

ac = 2.94 m / s²

ac = v² / r

2.94 = v² / r

v = √ 2.94 r m / s

Therefore, the speed limit for the curved stretch of road is √ 2.94 r m / s. She should perform her calculations with the coefficient of friction for wet pavement.

To know more about Centripetal force

https://brainly.com/question/14021112

#SPJ4

anticlockwise = clockwise (Force*distance)

1 * 20 = 2 * x

x = 10

An inelastic collision between two objects is characterized by the fact that a) the total momentum of the system is conserved. Choice A is correct

Inelastic collisions are the collisions in which the kinetic energy is lost. The momentum of the system is conserved in inelastic collisions, but kinetic energy is not. This is because some of the kinetic energy was transferred to another.

Suppose two similar cars are approaching. They collide, but the sled is equipped with a magnetic clutch so that when they collide they combine into a single agglomerate. This type of collision is completely inelastic as the maximum possible kinetic energy is lost. This does not mean that the final kinetic energy of the system is necessarily zero. Momentum is not yet maintained.

Learn more about the inelastic collision in

https://brainly.com/question/14521843

#SPJ4

Answer:

Mercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

and then drawf planets

If a person is forced to utilize self-defense, the offensive techniques that should be recommended are as follows:

I would advise them to employ the following defense strategies:

Based on the films, the move(s) that appear to be the most successful for the offense in a circumstance requiring self-defense are to target the problem rather than the person.

An aggressive competitive strategy is a form of company strategy that involves actively pursuing industry changes.

Companies that go on the offensive typically make acquisitions and invest extensively in R&D and technology in order to remain ahead of the competition.

Learn more about offensive strategy:
https://brainly.com/question/15935488
#SPJ1

The net force required to move the object of mass 15 kg and constant velocity is 0N

The mass of the object = 15 kg

The object is moving with a constant velocity = 3 m/s.

The net force required to move the object  can be calculated by using the formula,

                F = ma

where F is the force

          m is the mass

          a is the acceleration.

The acceleration is nothing but a rate of change of velocity (i.e. a = v/t). But for a constant velocity, the acceleration will be zero. Because there will be no change in velocity.

Therefore, the net force is

                      F = 15 x 0

                         = 0 N

Therefore, the net force is 0 N

Learn more about the force in

https://brainly.com/question/1046166

#SPJ4

The car would be moving with a velocity of 21 m/s at the end of the five seconds.

We know that the first equation of motion is ⇒ v = u + at (i)

Here, the car moves with an initial velocity, u =  8.5 m/s (ii)

The car accelerates at a constant rate, a = 2.5 m/s² (iii)

The total time during this process, t = 5 seconds (iv)

Putting the values of the initial velocity, acceleration, and time (ii, iii, and iv) in equation (i), we get ⇒ v = 8.5 + (2.5)(5)

v = 21 m/s

Therefore, the car moves with a final velocity of 21 m/s at the end of the five seconds.

Learn to know more about Initial Velocity on

https://brainly.com/question/9365999

The speed of the longitudinal wave is given or computed as 1.584 or approximately 1.6m/s.

A wave is a propagating dynamic disturbance of one or more variables in physics, mathematics, and related sciences. Periodic waves occur when values oscillate repeatedly about an equilibrium value at a certain frequency.

Longitudinal waves are those in which the medium's vibration is parallel to the wave's travel direction and the medium's displacement is parallel to the wave's propagation direction.

A longitudinal wave is an example of one. P-waves of ultrasonography from earthquakes

Compression, rarefaction, wavelength, amplitude, period, and frequency are all important characteristics of a longitudinal wave.

To estimate the above answer multiply wavelength and frequency to get the speed of a wave.

That is:

2.4 x 0.66

= 1.584

If the frequency is not given, one can divide 6 crests by 9.1 seconds to determine the frequency.

Learn more about longitudinal  waves:
https://brainly.com/question/2463407
#SPJ1

The intensity of the sound at a distance of 0.40 m from the source is 0,398 W/m²

Sound waves are classified as a longitudinal wave where the direction of propagation is parallel to the direction of vibration.

Sound intensity is formulated as follows:

I = P / A

I = Sound Intensity (W/m²)

P = Power of the Sound Source (W)

A = Area of the field through which the sound wave passes (m²)

Since the sound wave propagates in all directions, the area of the field traversed by this sound wave will form the surface area of the sphere, then:

I = P / (4πR²)

R = Surface radius (m)

So, The intensity of the sound at a distance of 0.40 m from the source is:

I = P / A

I = P / ( 4π . R² )

I = 0,80 / ( 4π . (0,4)²)

I = 0,398 W/m²

#SPJ4