what is a wavelength? a. The distance from the crest to its neighboring trough in a ways. b. The number of ways in a given period of time. c. The distance between two neighboring troughs in a wave. d. The direction of the wave

the linear separation d at the retina is 5.73micrometers

diameter=2mm

lambda=500nm

nair=1.33

d=2.5cm

alpha=1.22lambda/nd

=1.22(500x10^9)/(1.33)(2x10^-3)

=2.3x10^-4 rad

D=(2.3x10^-4)(.025)=5.73micrometers

The area of the eye that transforms light into neural signals is called the retina (Latin: rete, "net"). Most vertebrates and some molluscs have this innermost, light-sensitive layer of tissue in their eyes. A two-dimensional representation of the visual world is created on the retina by the optics of the eye (cornea and lens); some of the image is in focus and some of the image is out of focus. Visual perception is produced by the retina's processing of the image and the optic nerve's transmission of nerve impulses to the visual cortex. Similar to a camera's image sensor, the retina fulfills a purpose.

The neural retina is supported by an outer layer and is made up of numerous layers of neurons coupled by synapses.

Learn more about retina here:

https://brainly.com/question/15207568

#SPJ4

The number of poles that the two machines should have in order to convert a 50-hz power to 60-hz is a 10 pole synchronous motor must be coupled to a 12-pole synchronous generator.

n = 120 f / P

n = Speed of synchronous machine

f = Frequency

P = Number of poles

For motor,

f = 50 Hz

n = 120 * 50 / Pm

For generator,

f = 60 Hz

n = 120 * 60 / Pg

To accomplish the frequency conversion, the speed of the motor and generator must be equal. So,

120 * 50 / Pm = 120 * 60 / Pg

Pg / Pm = 6 / 5

Pg / Pm = 12 / 10

Therefore, to accomplish the frequency conversion, a 10 pole synchronous motor must be coupled to a 12 pole synchronous generator.

To know more about frequency conversion

https://brainly.com/question/23389184

#SPJ4

The internal resistance of the battery is 5.686ohms.

A battery's internal resistance (IR) is characterized as the resistance to current flow inside the battery. The internal resistance of a battery is primarily affected by two factors: electrical resistance.

The main causes of the increase in internal resistance with lead acid are sulfation and grid corrosion. Temperature has an impact on resistance as well; heat reduces it and cold increases it. An increase in runtime can be achieved by briefly lowering the internal resistance of the battery  

The formula below is used to determine the battery's internal resistance.

(V/R)r = V'

Make r the equation's subject.

r = V'R/V

Given:

V =  68.1  V

R = 20.6 ohms

V' = 18.8 V

r = (18.8×20.6)/68.1

r = 387.28/68.1

r = 5.686ohms.

To know more about internal resistance of battery visit:

https://brainly.com/question/17119622

#SPJ4

The relationship between the incident and reflected angles of a beam of light with different types of mirrors that both the angles are equal

According to the law of reflection, the angle of incidence equals the angle of reflection. Irrespective of mirror , whether it is a concave mirror , convex mirror or plane mirror , this law remain same in all condition where the incident angle is always equal to reflected angle .

To learn more about law of reflection here :

https://brainly.com/question/12690019

#SPJ4

During this process, the electric field gets stronger.

Because of the assumption that the distance between the plates is small in comparison to the area of the plates, the electric field in parallel plates is uniform and roughly constant. Due to the interaction of the fields produced by the two plates, the field is roughly zero outside of the plates.

The capacitor's two oppositely charged plates are separated by an electric field that is constant throughout, with the exception of the plate edges. The electric field does not change because the space between the plates is smaller than their combined surface area.

To know more about parallel plates visit:

https://brainly.com/question/15210428

#SPJ4

125.06⁰angle is the axis of the polarizer oriented, with respect to the vertical

given,

Only 67.0% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. No light passes through the second sheet.

for the first sheet we have malus law as

         I =I₀cos²θ₁

    here(given)

    I/I₀ = 0.67

   so cos²θ₁ =0.67

        θ₁ = cos⁻¹√(0.67)

               = 35.06⁰

which is the angle the first sheet makes with transmission axis

here  given no light passes through the second sheet i.e. both the sheets are in crossed position

so the angle the transmission axis of the second sheet makes with the vertical is

   θ₂ = θ₁ +90⁰

        =35.06 + 90⁰

         =125.06⁰

Learn more about transmission axis  here:

https://brainly.com/question/24086263

#SPJ4

A person who jumps a horizontal distance of 3.43 m on the earth will be able to jump a horizontal distance of 16.5 m on the moon.

Using the equation of projectile motion, the maximum distance formula is:

R = u² . sin(2α) / g

Where:

u = initial velocity

g = acceleration due to gravity

α = elevation angle

Assuming that the initial velocities, both on the moon and on the earth are the same both in magnitude and direction, hence the maximum distance is inversely proportional to the acceleration due to gravity.

Therefore,

Rm : Re = ge : gm    (m and e refers to moon and earth)

Rm : 3.43 = g : 0.208g

Rm =  3.43 / 0.208 = 16.5 meters

Learn more about gravity at:

https://brainly.com/question/72250

#SPJ4

The speed of the roller coaster when it comes at the top of the second hill is 17.32 m/s.

The mass of the roller coaster is 500 kg and it is travelling with a speed of 10m/s.

Firstly the roller coaster ride pass a height of 20 m and after that it goes down and then climb till height of 10 m.

It has been know that throughout the motion the total mechanical energy is always conserved.

So we can write,

Potential energy at the top of the 20 m + kinetic energy at the top of 20 m hill = potential energy at the top of 10 m hill + kinetic energy at the top of 10m hill.

MgH + 1/2MV² = Mgh + 1/2Mv²

H is 20m and h is 10m, while M is mass of roller coaster and V is the speed at top of 20m hill and v is the speed at top of 10m hill.

Putting all values,

g(H-h) = 1/2(v²-V²)

10×10 = 1/2(v²-100)

v = 17.32 m/s.

So, the speed of the roller coaster at the top of 10m hill is 17.32 m/s.

To know more about mechanical energy, visit,

https://brainly.com/question/24443465

#SPJ4

1.01 x 10³ C/m² is the electric field present between the two metal plates.

The electric field is defined as the region around a charged particle or charged body in which if another charge is placed experiences an electrostatic force.

The electric field inside two equal and opposite charged plates is given by

E = σ / ε ------ equation 1

here σ is the surface charge density = 9 x 10⁻⁹ C/m²

ε = Dielectric permittivity = 8.85 x 10⁻¹² C²/Nm²

Putting the values in equation 1

E = 9 x 10⁻⁹ / 8.85 x 10⁻¹²

=> 1.01 x 10³ N/C

To solve more questions on Electric field visit

https://brainly.com/question/16876445

#SPJ4

The magnitude of the magnetic field of the wave at this same point in space and instant in time is 1.67 × 10 ⁻⁸ T

The direction of the electric field is pointing in the positive x direction and the direction of propagation of the wave is in the positive z direction. Therefore, the direction of the magnetic field is in the positive y direction. Because in an electromagnetic wave, the direction of the electric field, the direction of wave propagation, and the magnetic field all lie perpendicular to each other.

According with the right-hand rule, the thumb points within the route of the current, the hands factor inside the course of the magnetic subject, and the resulting pressure at the charge points outwards from the palm. The pressure on a negatively charged particle is inside the opposite path.

Calculation:-

B₀ = E₀/c

   = 5 / 3 × 10⁸

The magnitude of the magnetic field is equal to = 1.67 × 10 ⁻⁸ T

Learn more about the magnetic fields here:-https://brainly.com/question/14411049

#SPJ4

Since (r ) equal to A plus Br, the mass per unit area of a circular disc with radius a depends on the distance r from its center.

Mass is obtained by multiplying density by volume.The volume of a disk is equal to its area times thickness, or r2 times thickness.Simply multiply this volume by the disk density, and there you have it!a disk's bulk.

F= 50 N

r= 0.12 m

α = 110 rad/s²

The moment of inertia of disk about center

I= 0.5 m r²

m=mass   , r=radius

The moment of inertia of disk about O

I' = 0.5 m r²+ m r²

I'=1.5 m r²

The torque produce by force F about O

τ = F x 2r

τ =2 F r

= 2 x 50 x 0.12 N.m

τ =12 N.m

We know that

τ = I' α

12 = 1.5 x m x  0.12² x 110

m=2.37 Kg

Mass of the disk m= 2.377 kg

To learn more about mass of the disk refer

https://brainly.com/question/14082281

#SPJ4

The mass of the block is 0.655 kg

Calculation

The mechanical energy of block system,

[tex]E=\frac{1}{2} mv_{max} ^{2}[/tex]

The mass of the block is

[tex]m=\frac{2E}{v^{2} _{max} }[/tex]

[tex]\frac{2(7.50)}{4.70^{2} } =0.6550 kg[/tex]

Hence, the mass of the block is 0.655 kg

To learn more about mechanical energy, refer to

https://brainly.com/question/24443465

#SPJ4

The mass of the block is 0.655 kg

The mechanical energy of block system,

[tex]$E=\frac{1}{2} m v_{\max }^2$[/tex]

The mass of the block is

[tex]$m=\frac{2 E}{v_{\max }^2}$[/tex]

[tex]$\frac{2(7.50)}{4.70^2}=0.6550 \mathrm{~kg}$[/tex]

Hence, the mass of the block is 0.655 kg

To learn more about mechanical energy, refer to

brainly.com/question/24443465

#SPJ4

To calculate the distance between the ships by formulas.

What constitutes speed?

The speed at which a position of an object changes in any direction. Speed is defined as the ratio of distance travelled to the amount of time needed to cover that distance. Because it only has a direction and no magnitude, speed is a scalar quantity.

What is distance?

Distance is an object's overall movement, independent of direction. Distance can be described as the amount of ground that an object has covered, regardless of its starting or ending points.

Known dx/dt= 35km/h

dy/dt= 25km/h

dz/dt when x=(4.35)= 140km and

y=(4.25) = 100 km

( then =[tex]\sqrt{100^2 + 240^2}[/tex] = 260 km)

∴ 100^2 ( x+y)^2 = Z²

0+∂(x+y)(dx/dt+dy/dt)=∂z(dz/dt)

=∂(140+100)(35+25)=∂(260)(dz/dt)

dz/dt= 55.4km/h

Therefore, the distance between the ships is55.4km/h.

Learn more about speed from the given link.

https://brainly.com/question/13943409

#SPJ4

When it hits a receding one, its rebound speed is reduced.

To learn more about speed of molecules, refer to

https://brainly.com/question/14327643

#SPJ4

Answer:

relax

Explanation:

your answer is right there in front of you force = weight

area of feet = area

while your pressure = force per unit area i.e

force/area = 600/0.03

= 2 × 10⁵

How many turns are on the solenoid? The number of turns on solenoid are 1.400 turns

To find how many turns on solenoid can be calculated as follows:

Given data,

[tex]d[/tex] (diameter of copper wire) = 1mm = 1×[tex]10^{-3}[/tex]m

[tex]D[/tex] (diameter of solenoid) = 14.6cm = 0.146m

[tex]l[/tex] (length of solenoid) = 1.4m

Next, to determine how many turns on solenoid, we can use the formula below:

[tex]N=\frac{l}{d}[/tex]

[tex]N=\frac{1.4}{0.001}[/tex]

[tex]N=1.400[/tex] turns

Therefore, the number of turns on solenoid are 1.400 turns

Learn more about find how many turns on solenoid here:

https://brainly.com/question/21842920

#SPJ4

As the spaceship pull the asteroid with 620 N of force, they will meet after 105.4 seconds.

The gravitational force between the ship and the asteroid is very small compared to the force caused by pulling the asteroid. Hence, we can assume that the only force applied on the asteroid is the pulling force.

Using the Newton 2nd Law of motion:

F = m . a

Where

F = pulling force = 620 N

m = mass of the asteroid = 7700 kg

a = acceleration

Hence,

a = F/ m = 620 / 7700 = 0.081 m/s²

Using the equation of motion:

s = 1/2 . a t²

Where:

s = distance = 450 meters

t = time

Hence,

450 = 1/2 . (0.081)  t²

t² = 11,111.11

t = 105.4 seconds

Learn more about distance here:

https://brainly.com/question/25855577

#SPJ4

The time required for a 25-L container to be filled with water is 277.7 min.

what is time?

Time is something that everyone is familiar with, but it is difficult to explain and comprehend. Time is defined differently in science, philosophy, religion, and the arts, but its measurement method is rather constant.

The time is measured in seconds, minutes, and hours. While the origins of these units have altered over time, they may be traced back to ancient Sumeria. The cesium atom's electrical transition defines the contemporary international unit of time, the second.

Given:

Incoming water speed (v) = 30cm/s

Hose area (A) = 2 cm²

volume of the container, V = 25 L = 25,000 cm³

The volumetric flow rate of the water is calculated as follows;

q=av

V/t=Av

T=V/Av

=25000/3x30

=25000/90

=277.7s

therefore the time required was 277.7 seconds

To learn more about speed follow the given link: https://brainly.com/question/13262646

#SPJ4

The telescope that allowed astronomers to discover most of the planets found with the transit method was called the Kepler mission.

Through only this one telescope, Kepler, astronomers have found thousands of extrasolar planets, or exoplanets, since its inception. Most of them are planets with diameters ranging from Earth's to Neptune's (which is four times the size of Earth). Where Kepler was directed for the first four years of its mission, in an area of the constellation Cygnus roughly the size of the palm of a hand held at arm's length, many of these planets were found.

According to the NASA Exoplanet Archive, as of November 2020, Kepler was credited with finding 2,392 exoplanets, with 2,368 candidate planets still awaiting confirmation.

To know more about the Kepler mission, visit:

https://brainly.com/question/14244365

#SPJ4

current is required in the windings for that to occur is 32.67mA

N=950

L=0.390m

B=1.0×10⁻⁴

B=μ₀ni

n=N/L(number of turns per unit length)

i=current

μ₀=permeability of free space =4π×10⁻⁷mkgs⁻²A⁻²or4π×10⁻⁷Tesla-m/A

i=B/μ₀n

i=1.0×10⁻⁴×0.390/4π×10⁻⁷×950

i=32.67mA

Electric current is a flow of charged particles—such as electrons or ions—that moves through a conductor for electricity or into void space. It is measured by the net rate of electric charge passing through a surface or into a control volume. Moving particles, or charge carriers, can be any number of distinct kinds of particles depending on the conductor. The charge carriers in electrical circuits are frequently electrons moving down a wire. In semiconductors, they could be electrons or holes. Ions are the charge carriers in an electrolyte, and plasma, an ionized gas, is composed of both electrons and ions.

Learn more about current here:

https://brainly.com/question/15851670

#SPJ4

The magnetic field will not be produced by a) stationary electric charge

Any stationary charge in the system will not produce any magnetic field because it will not affect both the magnetic and electric fields. Thus it will not be able to produce any effect on the magnet. whereas in all other options like moving electric charge, electric current, electromagnet, current carrying solenoid, there will be the movement of the charges, which will produce the magnetic field because it will affect both the magnetic and electric field in the system and It will able to produce an effect on the magnet

Thus, the magnetic field is not produced in stationary electric charges.

Learn more about the magnetic field in

https://brainly.com/question/3160109

#SPJ4

a point on the circumference travel if the wheel is rotated through angles of 30 rad is 7.8m

4.9 x [tex]10^{7}[/tex] revolutions  if the car travels 80000 km.

The Radius of the tyre = 0.26 m.

Perimeter = 2[tex]\pi r[/tex] =0.52[tex]\pi[/tex]m

When the circle is rotated through an 30rad angle, a point of its circumference travels a distance equal to an 30rad arc of this circle.

a full revolution is 2π rad, then an 30rad angle represents

30/2[tex]\pi[/tex] =15/[tex]\pi[/tex]

15/[tex]\pi[/tex] * .52 [tex]\pi[/tex] = 7.8 m

d =  7.8 m.

the car travels 80000 km

revolutions do the tires = 80000 * [tex]10^{3}[/tex]/ 0.52[tex]\pi[/tex]

=4.9 x [tex]10^{7}[/tex] revolutions.

To learn more about  radian refer,

https://brainly.com/question/19758686

#SPJ4

Answer:B

Explanation:explanation

The book will move in the right direction as the pushing force is greater than the frictional force.

The net force can be defined as the vector sum of all forces acting on an object. The net force is defined as a single force giving same the effect as the original forces on the object's motion.

The net force becomes the resultant force with the same effect on the rotational motion as all original forces took together by the object.

In the question, the pushing force will act in the opposite direction of the frictional force so we can find the net force by subtracting these two forces.

Given, the pushing force to push the box = 7N

The frictional force on the book, = 3 N

The net force on the book = 7N + (-3N) = 4N

Therefore, the net force act in the direction of the pushing force, therefore, the book will move in the right direction.

Learn more about the net force, here:

brainly.com/question/18109210

#SPJ1

Answer:The book will move to the right.

Explanation:

The force needed to keep a 2600-pound car from skidding on a curve of radius 650 at is 640 pounds.

The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed.

The same force would keep the same car from skidding on a curve of radius at , because:

1) The force is inversely proportional to radius. If one goes up, the other goes down.

2) The force is jointly proportional to weight and square speed. If one goes up, so does another; if one goes down, so does another.

3) 1600 pounds will keep a 2600-pound car from skidding on both curves--the force does not depend on which curve you're talking about!

To learn more about force visit: https://brainly.com/question/13191643

#SPJ4

The ratio of the image's distance from the lens to the object's distance determines a lens's magnifying capability. Thus, the microscope's magnification factor m=m1m2.

Magnifying power is a lens's capacity to enlarge an image by how much. The least distance of distinct vision, or LDDV, and the focal length of the lens are directly correlated. Your eyes can easily focus on an object up to their LDDV.

By dividing the focal length of the scanning object (lens) by the focal length of the eyepiece, the magnifying power is computed. A 1x magnification power results in a 100% increase in the size of the thing being enlarged. A 1-inch object, for instance, would appear to be 2 inches at 1x.

The ratio of the angle the image at the eye occupies to the angle the object occupies is known as the magnifying power of the microscope.

To learn more about  magnifying power refer to:

https://brainly.com/question/15412679

#SPJ4

Answer: We are unable to see the word bank please update it with a more clear bank word image.

3848 J work has to be done to stop the bull.

The kinetic energy of an item is the energy that it possesses due to its movement. it's miles defined because the work had to accelerate a body of a given mass from relaxation to its said velocity. Having won this power in the course of its acceleration, the frame continues this kinetic energy unless its velocity adjustments.

Kinetic energy is the electricity an item has due to its movement. If we need to boost up an item, then we have to apply pressure. applying a force requires us to do paintings. After paintings have been achieved, strength has been transferred to the item, and the item may be transferred with a new consistent speed.

Calculation:-

work done = change in kinetic energy

                   = final kinetic energy - initial kinetic energy

                   = 1/2mVf²  - 1/2mVi²

                    = 0 - (3,848 )

                     = 3848 J

Learn more about kinetic energy here:-https://brainly.com/question/25959744

#SPJ1

She might be barely lower than you however shifting upward in the direction of you.

Oscillation is the repetitive or periodic variation, generally in time, of a few measures approximately a critical price or among or greater distinct states. familiar examples of oscillation consist of a swinging pendulum and alternating modern-day.

A pendulum is a weight suspended from a pivot so that it can swing freely. whilst a pendulum is displaced sideways from its resting, equilibrium position, it's miles issue to a restoring force due to gravity so one can accelerate it returned toward the equilibrium function.

Oscillation is defined as the method of repeating versions of any quantity or degree about its equilibrium price in time. Oscillation can also be defined as a periodic variant of a rely on among values or approximately its crucial price.

Learn more about Oscillation here:-https://brainly.com/question/22499336

#SPJ4

The force does the ring push on her at the top of the ride is 489.37N.

When an object with mass is pushed or pulled, it changes its velocity, according to the definition of force.

Given,

Ring rotates (T) = 5.50 s

Mass m= 51.0 kg

The velocity will now be determined as,

V = 2πr/T

V = 2π8/5.50

V = 50.54/5.50

V = 50.54/5.50

V = 9.134m/s.

By bringing the forces into balance,

N = mv²/R - mg

N = m (v²/R - g)

N = 51(9.134²/8 - 9.8)

N = 51(83.42/8 -9.8)

N = 489.37N

To know more about force visit:

https://brainly.com/question/14530008

#SPJ4