the work function for sodium is 2.28 ev. what is the maximum wavelength that an electromagnetic wave can have to produce photocurrent?

Answer:

it will hit 80

Explanation:

because evey sec

is 10

An operational management is a collective combination of management, money, material, and machinery that work together as a single unit.

Operations management is the administration of business procedures inside an organization to achieve the best degree of efficiency achievable.

Operations management teams strive to produce the maximum net operational profit feasible by balancing expenses and income.

An operational management is a collective combination of management, money, material, and machinery that work together as a single unit.

Hence, operational management is the correct answer.

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It would cost approximately $135.52 to buy a similar amount of goods and services in 2016, accounting for inflation from 2001.

To determine the cost of buying a similar amount of goods and services in 2016, we can use the Consumer Price Index (CPI) as a measure of inflation. The CPI represents the average price level of a basket of goods and services over time.

Given:

CPI in 2001 (Base year) = 177.1

CPI in 2016 = 240.0

Baby shower gift value in 2001 = $100

To adjust the baby shower gift value for inflation, we can use the following formula:

Adjusted value = (CPI in the desired year / CPI in the base year) * Value in the base year

Calculating the adjusted value:

Adjusted value = (240.0 / 177.1) * $100

Adjusted value ≈ $135.52

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The constant voltage that needs to be applied to yield this rate is approximately 0.47619 H A/s.

To calculate the constant voltage required to yield a current rate of 150 A over 210 min in a magnet with an inductance of 40 H, we can use the formula V = L × di/dt.

Given:

Inductance (L) = 40 H

Change in current (di) = 150 A

Change in time (dt) = 210 min = 210 × 60 s = 12,600 s

Substituting the values into the formula:

V = 40 H × (150 A / 12,600 s)

Simplifying the expression:

V = 40 × 150 / 12,600 H A/s

V = 0.47619 H A/s

The formula V = L × di/dt represents the relationship between voltage (V), inductance (L), change in current (di), and change in time (dt). By rearranging the formula, we can solve for voltage (V).

Plugging in the given values of inductance, change in current, and change in time, we calculate the constant voltage required. In this case, the result is approximately 0.47619 H A/s.

Therefore, the required constant voltage to achieve this current rate is approximately 0.47619 H A/s.

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Complete question here:

Magnetic resonance imaging instruments use very large magnets that consist of many turns of superconducting wire. A typical such magnet has What constant voltage needs to be applied to yield this rate? an inductance of 40H. When the magnet is initially Express your answer with the appropriate units. powered up, the current through it must be increased slowly so as not to "quench" the wires out of their superconducting state. One such magnet is specified to have its current increased from 0 A to 150 A over 210 min.

I = 0.00744 A (Amps)

Hi there !

Ohm's law formula

I = V/R

I = 3.5V/470Ω

I = 0.00744 A

Good luck !

Answer:

 μ = 0.179

Explanation:

For this exercise we use the rotational equilibrium condition, where we set a reference system at the top of the ladder where it is in contact with the parent, we will assume the counterclockwise rotations as positive

         ∑ τ = 0

         W_stairs x/2 + W_man x’+ fr y - N x = 0

          fr y = -W_stairs x/2 - W_man x’ + N x

let's use trigonometry for distances

* the man up the ladder 78%

            l ’= 0.78 L

            cos 59 = x ’/ l’

            x’= 0.78 L cos 59

* the horizontal distance

           cos 59 = x / L

            x = L cos 59

* vertical distance

            sin 59 = Y / L

            y = L sin 59

we substitute

           fr L sin 59 = -W_stairs Lcos59 / 2 - W_man 0.78 L cos59 + N L cos59

           fr sin 59 = - ½ W_stairs cos 59 - 0.78 W_man cos 59 + N cos 59

           fr = ctan 59  (N - ½ W_stairs - 0.78 W_man)     (1)

Let's write the translational equilibrium equations

Y axis  

           N -W_stairs - W_man = 0

           N = W_stairs + W_man

           N = 85 + 21.5 9.8

           N = 295.7 N

we substitute in 1

           fr = ctg 59 (295.7 - ½ 85 - 0.78 21.5 9.8)

           fr = 0.6 (295.7 - 42.5 - 164.346)

           fr = 52.89 N

the expression for the friction force is

            fr = μ N

            μ = fr / N

             μ = 52.89 / 295.7  

             μ = 0.179

Answer: False

Explanation:

Answer:

The rate of change of height with respect to time is -10.64 feet/sec

Explanation:

Given that,

There are three lines, so you can calculate three different values of the function at one time.

The function f(t) represents the height in feet of a ball thrown into the air, t seconds after it has been thrown.

Given table is,

Time t = 0, 1, 1,02

Function is,\(F(t)=-3.053113177191196\times10^{-18},6.000000000000134, 6.41760000000015\)

We need to calculate the initial height of ball

Using equation of motion

\(h=h_{0}+ut-\dfrac{1}{2}gt^2\)

Where, h₀ = initial height

u = initial velocity

t = time

g = acceleration due to gravity

At t = 0,

Put the value into the formula

\(-3.053113177191196\times10^{-18}=h_{0}+0-0\)

\(h_{0}=-3.053113177191196\times10^{-18}\)

We need to calculate the height of ball at t = 1

Using equation of motion

\(h_{1}=h_{0}+u_{0}t-\dfrac{1}{2}gt^2\)

Put the value in the equation

\(6.000000000000134=-3.053113177191196\times10^{-18}+u-\dfrac{1}{2}\times32\)

\(6.000000000000134+3.053113177191196\times10^{-18}+16=u_{0}\)

\(u_{0}=22\ feet/s\)

Velocity is the rate of change of height with respect to time

So, velocity at 1.02 sec is given

We need to calculate the height

Using equation of motion

\(h=ut-\dfrac{1}{2}gt^2\)

On differentiating w.r.to t

\(h'(t)=u-\dfrac{1}{2}g(2t)\)

Put the value into the formula

\(h'(t)=22-\times32\times(1.02)\)

\(h'(t)=-10.64\ feet/sec\)

Hence, The rate of change of height with respect to time is -10.64 feet/sec.

Answer:

Hence appliance but be connected to a 3.67 ohms load to maintain a safe amount of the current

Explanation:

According to Ohm's law, V = IR

V is the potential difference = 220volts

I is the current = 60 A

R is the resistance (Load)

Calculating the load R

R = V/I

R = 220/60

R = 3.67 ohms

Hence appliance but be connected to a 3.67 ohms load to maintain a safe amount of the current

Answer:

\(\sf\pink{Andromeda \: galaxy}\)

The Andromeda is a galaxy which is nearest to the milky way. It is also named as Messier 31 or M31 or NGC 224. It is a spiral galaxy located at a distance of approximately 2.5 million light years from earth.

another name Andromeda in Hindi is Vaikunth.

Explanation:

The Andromeda Galaxy (IPA: /ænˈdrɒmɪdə/), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula (see below), is a barred spiral galaxy approximately 2.5 million light-years (770 kiloparsecs) from Earth and the nearest major galaxy to the Milky Way.

Number of stars: ~1 trillion (1012)

Right ascension: 00h 42m 44.3s

Answer:

Effort = 540 Newton

Explanation:

Given the following data;

Load arm = 60 cm

Effort arm = 40 cm

Load = 360 N

Conversion:

100 cm = 1 meters

40 cm = 40/100 = 0.4 meters

60 cm = 60/100 = 0.6 meters

To calculate the effort that Reha should apply to lift Neha, we would use the expression;

Effort * effort arm = load * load arm

Substituting into the expression, we have;

Effort * 0.4 = 360 * 0.6

Effort * 0.4 = 216

Effort = 216/0.4

Effort = 540 Newton

The car's acceleration is 8 m/s².

The car's acceleration can be calculated using the formula:

a = (v_f - v_i) / t

where a is the acceleration, v_f is the final velocity, v_i is the initial velocity, and t is the time taken.

In this case, the car starts from rest (v_i = 0) and reaches a final velocity of 32 m/s in 4 seconds. Substituting these values into the formula, we get:

a = (32 m/s - 0 m/s) / 4 s = 8 m/s²

Therefore, the car's acceleration is 8 m/s².

The rate of change of velocity about time is defined as acceleration. Because it is a vector number, it has both magnitude and direction. Meters per second square is the standard measure of acceleration.

When an it em accelerates, its velocity changes in magnitude, direction, or both. A positive acceleration indicates an increase in velocity, whereas a negative acceleration indicates a decrease in velocity. If an object's velocity is steady, its acceleration is zero.

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Answer:

Jwbsbsbdjeiskbsj3kabajj2jjj1jj2j2j3jkkkk3j3j2

The increase in the strength of the magnetic field will make the magnetic filed lines more closer to each other at the magnetic poles.

The magnetic field lines show how powerful the magnet is. This magnetic field will have a wider region of coverage for a powerful magnet. The magnetic field lines appear to all diverge or converge at the poles, as shown in the illustration above. This indicates that the region where a magnet's external magnetic field is highest.

The magnetic south pole is the point at which all magnetic field lines converge for all magnets, while the magnetic north pole is the point at which all magnetic field lines diverge.

The magnet's north pole is where magnetic lines of force begin, and its south pole is where they terminate. At the poles, magnetic field lines are closest to one another, and the distance at which they are separated from the magnet changes.

Magnetic force lines never cross one another. But they come closer when the field strength is increased.

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The mass of the truck is 12,974.4kg .

As a measure of inertia, which is a fundamental characteristic of all matter, mass is used in physics. Effectively, it is the resistance a body of matter offers to a change in its speed or position as a result of the application of a force.

Measures a substance's resistance to acceleration in physics. A measure of an object's mass is roughly equivalent to counting the atoms that make up the object. The kilogram serves as the fundamental mass unit. Mass multiplied by the gravitational acceleration equals weight.

50km/h =50×5/18 m/s= 13.88 = 13.9

momentum (p)=180,345 kg.m/s

P=mv

180,345= m X 13.9

m = 180345/13.9

m = 12,974.46

m = 12,974.4

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The pressure of the butane gas sample at 120.0 mL can be determined by using the ideal gas law equation, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

To find the pressure of the butane gas sample at 120.0 mL, we need additional information such as the number of moles and the temperature of the gas. Once we have these values, we can use the ideal gas law equation, PV = nRT, to calculate the pressure.

1. Determine the values: Gather the known values for the problem, such as the volume (V = 120.0 mL) and any other given information, such as the number of moles (n) and the temperature (T).

2. Convert the volume: If necessary, convert the volume to the appropriate unit for the ideal gas law equation. The ideal gas law typically requires volume to be in liters, so if the given volume is in milliliters, divide it by 1000 to convert to liters.

3. Plug in the values: Substitute the known values into the ideal gas law equation, PV = nRT. Make sure to use consistent units for all the variables.

4. Solve for pressure: Rearrange the equation to solve for pressure (P). Divide both sides of the equation by the volume (V) to isolate pressure: P = (nRT) / V.

5. Calculate the pressure: Substitute the known values into the equation and perform the necessary calculations to find the pressure of the butane gas sample at 120.0 mL.

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The distance the springs need to bring the car to a stop can be calculated using the equation for the potential energy of an object at a height, which is:

PE = mgh

where m is the mass of the object, g is the acceleration due to gravity (9.8 m/s^2), and h is the height.

In this case, the car has a mass of 1,836 kg and is at a height of 88.6 meters. So the potential energy of the car at the top of the roller coaster is:

PE = 1,836 kg * 9.8 m/s^2 * 88.6 m = 1.5*10^5 J

Next, we need to find the work done by the spring. Work can be calculated using the equation

W = 1/2 * kx^2

where k is the spring constant (100,000 N/m) and x is the compression distance of the spring.

Since the work done by the spring is equal to the potential energy of the car, we can set the two equations equal to each other and solve for x (the compression distance of the spring):

1/2 * kx^2 = 1.510^5 J

x = sqrt(2 * 1.510^5 J / 100,000 N/m)

x = sqrt(30000/100000)

x = 0.173 m

Therefore, the spring needs a distance of 0.173 m to bring the car to a stop.

Since the rate of change in velocity is referred to as the object's acceleration, we may calculate acceleration in meters/second2 by dividing velocity m² by time (seconds).

A acceleration of the cart is the frequency with which the object's velocity changes in relation to time.as stated in the issue We must determine the outcome if you divide the velocity in meters per second by the time in seconds.

The definition of acceleration is the speed at which velocity varies with function of time. Since acceleration has both a magnitude and a direction, it is a vector quantity. It is also the first derivative for velocity profile or the derivative of point with regard to time.

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The velocity of the river can be expressed as a vector in component form as Vr = <10, 0>, where 10 represents the speed of the river flowing east and 0 represents the speed of the river flowing north.

The velocity of the motorboat relative to the water can be expressed as a vector in component form as Vb = <20cos60, 20sin60> = <10, 17.32>, where 20 represents the speed of the motorboat and 60 degrees represents the angle it is headed at relative to the shore.
To find the true velocity of the motorboat, we need to add the velocity of the river to the velocity of the motorboat. Vm = Vr + Vb = <10+10, 17.32> = <20, 17.32>. Therefore, the true velocity of the motorboat is 20 mph east and 17.32 mph north.

To find the true speed of the motorboat, we can use the Pythagorean theorem. The true speed of the motorboat is sqrt(20^2 + 17.32^2) = 27.29 mph.
To find the direction of the motorboat, we can use trigonometry. The angle of the velocity vector can be found by taking the arctan of the north component divided by the east component. Therefore, the direction of the motorboat is arctan(17.32/20) = 40.6 degrees north of east.
To arrive at a point on the north shore of the river directly opposite the starting point, the boater should head in a direction perpendicular to the river. This means the boat should be headed directly north.
The velocity of the river is flowing east, so its vector in component form is V_river = <10, 0>.

b) The velocity of the motorboat relative to the water is 20 mi/h at an angle of 60° from the shore. We can find its components using trigonometry:
V_motorboat_x = 20 * cos(60°) = 10 mi/h
V_motorboat_y = 20 * sin(60°) = 17.32 mi/h
So, the velocity of the motorboat relative to the water in component form is V_motorboat = <10, 17.32>.

To find the true velocity of the motorboat, we need to add the river's velocity to the motorboat's velocity relative to the water:
V_true = V_river + V_motorboat = <10, 0> + <10, 17.32> = <20, 17.32>.
To find the true speed and direction of the motorboat, we can calculate the magnitude and direction angle of the true velocity vector:
True speed = sqrt(20^2 + 17.32^2) = 26.35 mi/h
Direction angle = arctan(17.32/20) = 40.89° north of east.

To arrive at a point directly opposite the starting point on the north shore, the boater should counteract the eastward velocity of the river. In this case, the boat should be headed at an angle such that the x-component of its velocity cancels out the river's eastward flow. This would require a direction of approximately 90° (straight north) from the shore.

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The tension is increased to 20lb, the sag will be reduced to 0.64 in.

The sag correction formula is given by S= WL^2/ 8f^2, where S = Sag correction, W = weight of tape, L = length of tape, f = tension per unit length.

The weight of the 100-ft steel tape is 1.6lb or 1.6/100lb/ft.

Therefore, W = 1.6/100lb/ft, L = 100 ft, and f = 10 lb.

Substituting these values into the sag correction formula, we have; S = (1.6/100) x (100)^2/8 x (10)^2S = 2.56 in Therefore, the sag correction is 2.56 in .b)

If the tension were increased to 20lb, the sag is reduced to S' = (1.6/100) x (100)^2/8 x (20)^2S' = 0.64 in

Therefore, if the tension is increased to 20lb, the sag will be reduced to 0.64 in.

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Answer:

400 J

Explanation:

KE = 1/2mv² = 1/2(2 kg)(20 m/s)² = 400 J

Create a plate with three points of reference. On the two side points put the two compounds separately and in the middle one combine both compounds.

The Rf value of a substance is used to identify the properties of that compound. The Rf value of polar compounds is lower, while the Rf value of non-polar compounds is higher. Three lanes are the most prevalent method for assessing too close spots. Compound A is in lane 1. Compound B is in lane 3. Both spots are in lane 2. This is known as a co-spot. If the co-spot exhibits a 'snowman' effect whenever the TLC is run, it indicates that perhaps the spots are, in a real sense, different compounds which are extremely close together. You could also try changing the solvent system, yet co-spot always comes first.

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The required force need to accelerate the rocket is 120000N while the force need to balance the weight is 117600 N and the total force is 237,600 Newtons.

Force is defined as an object which is in a state of motion then its rate of change of moment is called force.

Here,
We can use the equations of motion to solve this problem.

First, we can find the acceleration of the rocket

a = (v - u) / t

where v is the final velocity, u is the initial velocity (which is 0 in this case), and t is the time taken.

a = (400 m/s - 0) / 40 s

a = 10 m/s²

Next, we can use Newton's second law, F = ma,

F = ma

F = 12,000 kg x 10 m/s²

F = 120,000 N

So the force needed to accelerate the rocket is 120,000 Newtons.

The weight of the rocket is given by,

weight = m x g

weight = 12,000 kg x 9.8 m/s²

weight = 117,600 N

To balance the weight, a force of 117,600 N must be exerted on the rocket in the opposite direction.

total force = force to accelerate + force to balance weight

total force = 120,000 N + 117,600 N

total force = 237,600 N

So the engines must provide a total force of 237,600 Newtons.

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Answer:

2. wavelength

Explanation:

Light moves in waves. Light waves are different from sound waves in that light travels in transverse waves (as opposed to longitudinal, which is how sound waves travel). A light wave that travels in a direction is called a light ray.

Just like other waves, light waves have a wavelength and amplitude. The wavelength determines the color; we will learn more about this in the lesson on color. The amplitude of a light wave determines the brightness. Just as large amplitudes in sound waves result in sounds with greater intensities (louder sounds), large amplitudes in light waves result in light with greater intensity (brighter light).

Electronic amplifiers employ active devices such as transistors and operational amplifiers in combination with R, L, and C elements.

These amplifiers are designed to increase the amplitude or power of an input signal, thereby enhancing its strength, clarity, and quality. Active devices such as transistors and op-amps are used to control the flow of current and voltage in a circuit, while resistors, inductors, and capacitors are used to shape and filter the signal.

The combination of these active and passive components allows electronic amplifiers to perform a wide range of functions, including signal amplification, filtering, oscillation, and modulation.

Amplifiers are used in a variety of electronic devices, including radios, televisions, audio systems, and medical equipment, and are essential for the transmission and processing of electronic signals.

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The motion of the moon in space to produce the different phases is the rotation and the revolution.

The moon's rotation is characterized as the movement that this body performs on its own axis.

In addition, the moon also performs the movement of revolution, which is characterized as the movement of the moon around the Earth.

The revolution lasts approximately 28 days, and just like the rotation allows for the existence of 4 phases of the moon, every 7 days.

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A) The time duration of the chop 5.8 millisecond.

B) The applied average force Fav would be 830 N.

Velocity is a vector quantity that describes the rate of change of an object's position. It is equal to the displacement of an object divided by the time interval over which the displacement occurred. Velocity has both magnitude and direction, and its units are typically meters per second (m/s). The velocity of an object can change over time due to acceleration, and if an object is moving in a circular path, it also has a component of velocity perpendicular to its direction of motion, known as centripetal   velocity.

a) The average speed Vav during the time the hand is in contact with the board is half of the initial speed.

Thus, Vav = (9.5 m/s) /2

= 4.8 m/s

To obtain the time duration t of the chop, substitute 2.8 cm for y and 4.8 m/s for vav

in the equation t=y/ Vav,

t=y/ Vav

=(2.8 cm)/(4.8 m/s)

= (2.8 cm×10⁻² m/1 cm)/(4.8 m/s)

= 5.8×10⁻³ s

= (5.8×10⁻³s) (1 ms/10⁻³s)

= 5.8 ms

Therefore the time duration t of the chop will be 5.8 ms.

b.

To obtain the applied average force Fav, substitute 5.1 N.s for J and 5.8 ms for t in the equation Fav = Jlt,

Fav=Jlt

=(5.1 N.s)/(5.8 ms)

=(5.1 N.s)/(5.8 ms×10⁻³s/1 ms)

= 880 N

From the above observation we conclude that, the applied average force Fav would be 830 N.

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Answer:

this is question is trying to trick you

Explanation:

it gives long words but all you need to know is just a few

the second law of reflection states that the angle of incidence equals to the angle of reflection

so if the angle of incidence = 30

then

the angle of reflection = 30

hope this helps,

please mark it brainliest

Answer:

acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.

Explanation:

Calculating acceleration involves dividing velocity by time — or in terms of SI units, dividing the meter per second [m/s] by the second [s]. Dividing distance by time twice is the same as dividing distance by the square of time. Thus the SI unit of acceleration is the meter per second squared .