A thin glass slide (n = 1.53) that is 0.470 μm thick and surrounded by air is illuminated by a monochromatic electromagnetic wave. The wave is incident along the normal to the slide.
Please show step by step work please and thanks!
Part A
What is the lowest frequency of the wave that will produce an intensified reflected wave?
Express your answer in hertz to three significant figures.
Part B
What is the lowest frequency of the wave that will produce a cancelled reflected wave?

Answer is c, they are equal:

Explanation:

Answer:

B

Explanation:

Answer:

2.0 Ω

Explanation:

V = IR

1.5 V = (0.75 A) R

R = 2.0 Ω

Answer:

it would be 24 miles

Explanation:

6x4 to get your answer because he is going four different ways north,west,south,and east

Answer:

789 kg/m³

Explanation:

Explanation:

The density of alcohol is 800 Kg/m^3 .

Answer:

Newton's third law of motion states that whenever a first object exerts a force on a second object, the first object experiences a force equal in magnitude but opposite in direction to the force that it exerts. ... Newton's third law is useful for figuring out which forces are external to a system.

Explanation:

is these what you're looking for?

If the average distance between galaxies is 0.27 of its current value, it means that galaxies were closer together in that era.

This also means that there would be more galaxies in a cube of the same size as compared to the present-day universe. To calculate the number of galaxies, we can use the inverse square law, which states that the number of galaxies in a given volume is proportional to the inverse square of the distance between them.
At a cosmological redshift of z=2.7, the distance between galaxies would be about 3.7 times smaller than it is now (since redshift is related to the expansion of the universe). Therefore, the number of galaxies in a cube of the same size would be about \((3.7)^2 = 13.69\) times greater than it is now.
   Since there is currently about one Milky Way-sized galaxy in a cube of that size, we would expect to find about 13.69 Milky Way-sized galaxies in a cube of the same size in that era.

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Answer:

\(from \: first \: equation \: of \: motion \\ v = u + at \\ a = \frac{v - u}{t} \\ a = \frac{15 - 24}{12} \\ a = - 0.75 \: {ms}^{ - 2} \)

Answer:

a = -0.75 m/s^-2

Answer:

option d is answer because pd is measured in volt.

Answer:

Explanation:

Fill the graduated cylinder partially with water to a level where you can submerge the object and drop the sinker weight into the water. If you don't have a graduated cylinder to fit your object, put a cylinder in a basin, fill it to the top with water and measure the overflow into the basin. Your answer will be less accurate because of the number of times the water has been moved. Note the amount of displacement in milliliters (ml) caused by the sinker and string.

Measure the mass of your object (say a cork) on a balance scale in grams (g). Be sure the object is dry when it is measured. Record its weight. Attach the sinker with the string to the object. If you use a staple or pin, be sure to include that when you measure the displacement of the sinker in step one.

The testes are the primary male reproductive organs responsible for producing testosterone.

Vas Deferens: Also known as the ductus deferens, it is a muscular tube that carries mature sperm from the epididymis to the ejaculatory ducts.

Seminal Vesicles: These glands produce a fluid rich in fructose and other nutrients, which helps nourish and provide energy to the sperm.

Prostate Gland: It is a walnut-sized gland that produces a milky fluid containing enzymes, proteins, and other substances that contribute to se men formation.

Cowper's Glands: These small glands secrete a clear, alkaline fluid that lubricates the urethra and neutralizes any acidic urine remnants, creating a favorable environment for sperm.

Urethra: This is a tube that runs  serves as a passage for both urine and semen, though not at the same time.

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The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 x 1013 rad/s. The mass of a nickel atom is 9.75 x 1026 kg. The difference in energy between adjacent vibrational energy levels of a nickel crystal is approximately: 0.01515 eV.

To find the difference in energy between adjacent vibrational energy levels of a nickel crystal, we will use the following formula:
ΔE = ħω
where ΔE is the energy difference,
ħ (h-bar) is the reduced Planck constant, and
ω is the angular frequency.

So, the difference in energy between adjacent vibrational energy levels of a nickel crystal is approximately 0.01515 eV.

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Answer:

2991.47 [cm^2]

Explanation:

To solve this problem we must perform a dimensional analysis and use the corresponding conversion values:

\(3.22[ft^{2}]*\frac{12^{2}in^{2} }{1^{2}ft^{2}} *\frac{2.54^{2}cm^{2} }{1^{2}in^{2} } \\2991.47[cm^{2}]\)

Answer:

To holds the legs apart without rupturing any vein

Explanation:

The purpose of using string to tie the forelegs and hind legs during dissection is to hold the legs apart without rupturing ant vein or artillery for easy dissection procedure( the dismembering of the body of a deceased animal or plant to study its anatomical structure)

when tieing the forelegs and the hind legs the same string is used to tie them and the string is then passed/looped under the dissecting table/tray this way the legs will be held apart and the dissection can commence.

Answer:

La energía que la bombilla consume durante el mes de noviembre es 0,3 kWh o 1.080.000 Joules.

Explanation:

La energía eléctrica consumida por un aparato eléctrico es el producto de la potencia eléctrica (P) y la duración del tiempo utilizado (t)

E = P*t

En este caso, la potencia eléctrica tiene un valor de 100 W. Siendo 1 W equivalente a 0,001 kW, entonces 100 W es igual a 0,1 kW. Por lo que la energía puede ser calculada como:

E= 0,1 kW*3 horas

E= 0,3 kWh

El kWh es una unidad de medida que se emplea para contabilizar el consumo eléctrico que se ha realizado durante un periodo de tiempo. El kWh mide el consumo de energía en kilovatios hora o kilowatts hora.

1 kW equivale a 3.600.000 Joules. Entonces el consumo de energía igual a 0,3 kWh equivale a 1.080.000 Joules

La energía que la bombilla consume durante el mes de noviembre es 0,3 kWh o 1.080.000 Joules.

Answer:

The correct option is;

2. Some of the laws that govern nature cannot be detected by scientists

Explanation:

The statement "some of the laws that govern nature cannot be detected by scientists" is a scientific claim because of the concept of the laws or the theories truth or realism

The art word 'scientific realism' refers to the world that cannot be observed with our natural given senses without an aid.

Ontic realism refers to the statement that the world that cannot be observed are independent from the entities that are in possession of minds, ideas, language conception

Therefore, according to the ontic realist consider the world  to be made of unobservable structures and units that exist independent of the man.

The volumetric current used to quantify the flow of a liquid is equal to a. the area the fluid passes through multiplied by its speed.

This formula is also known as the volumetric flow rate and is commonly used in fluid dynamics. The unit of measurement for volumetric flow rate is usually cubic meters per second (m3/s) or liters per second (L/s).  To understand why this formula works, consider a pipe with a cross-sectional area of A and fluid flowing through it at a speed of v. The volume of fluid passing through the pipe in a unit of time (Q) is given by Q = A x v.

For example, if the pipe has a cross-sectional area of 1 m2 and the fluid is flowing through it at a speed of 1 m/s, then the volumetric flow rate is 1 m3/s.
In summary, the volumetric current or flow rate of a liquid is determined by the product of the area of the cross-section through which the fluid flows and the speed at which it flows. The volumetric current used to quantify the flow of a liquid is equal to a. the area the fluid passes through multiplied by its speed.

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The distance above the ground the rock  should be dropped such that it hits the ground at 2t after it is released from rest is 4h.

The height of fall of the rock is calculated by applying the following kinematic equation as shown below.

h = vt + ¹/₂gt²

where;

h = 0 + ¹/₂gt²

h = ¹/₂gt²

2h = gt²

g = 2h / t²

h₁ / t₁² = h₂ / t₂²

The distance above the ground the rock  should be dropped such that it hits the ground at 2t after it is released from rest is calculated as;

h₂ = ( h₁ / t₁² )(t₂²)

h₂ = ( h/t²)(2t)²

h₂ = ( h/t²)(4t²)

h₂ = 4h

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The kangaroo's horizontal speed will be 9.7 m/s and its departure speed will indeed be 10.65 m/s.

By observing the pace at which this compressed region moves through the medium, we may determine the sound speed. The sound wave travels at a speed of around 343 meters per second in low humidity at 20 degrees Celsius.

The following equation relates the distance to the direction and initial velocity:

d = [v₀²sin2θ]/g, where θ – the angle of the jump.

Thus, v₀² = gd / (sin2θ) = (9.8×8)/0.69 = 113.62

v₀ = 10.65 m/s ( the take off speed).

The horizontal velocity equals:

vₓ = v₀cos 22° = 10.65 m/s × 0.92 = 9.7 m/s

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The correct answer is d) The anode is the cobalt electrode and the cell potential is +0.39 V. In a standard lead-cobalt cell, the anode is the cobalt electrode and the cell potential is +0.39 V.

This is because the cobalt electrode has a higher reduction potential than the lead electrode, meaning that electrons will flow from the cobalt to the lead electrode. The cell potential is the difference in the reduction potentials of the two electrodes, and since the cobalt electrode has a higher reduction potential, the cell potential is positive. The cell potential is measured in volts, and in this case it is +0.39 V.

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Answer:CCCCCCCCCCCCCCCCC

Explanation:CCCCCCCCCCCCC

Answer:

d

Explanation:

because it is talking of the solid rock in the core of the earth

The frequency of these waves is approximately 25 Hz.

Given the following information:nHuge waves in the ocean, are studied by scientists and researchers. Ships have reported waves with a height of 25 meters high! These waves are said to be about 25 meters long. Assuming that these waves travel at speeds of 6.5 m/s, determine their frequency.

The equation needed to solve for velocity is: Velocity = wavelength x frequency

Step 1: Rearrange the formula and solve for frequency as follows: frequency = velocity / wavelength

Step 2: We are given the velocity of the wave, which is 6.5 m/s. We can also calculate the wavelength using the formula: Velocity = wavelength x frequency

Rearranging the formula to solve for wavelength: wavelength = velocity / frequency ..wavelength = 6.5 m/s / 25 m (since the wavelength is given as 25 meters)wavelength = 0.26 m

Now that we know both the velocity and wavelength, we can substitute them into the formula:f = v / λf = 6.5 m/s / 0.26 mf ≈ 25 Hz . Therefore, the frequency of these waves is approximately 25 Hz.

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To raise the automobile with a hydraulic lift, a force of approximately 19,000 N must be applied to the piston.

In a hydraulic lift, the principle of Pascal's law is applied, which states that pressure applied to an enclosed fluid is transmitted undiminished to all portions of the fluid and the walls of its container. By utilizing this principle, a smaller force applied to a smaller piston can generate a larger force on a larger piston.

In this scenario, the force needed to lift the automobile can be calculated using the formula:

\(\frac{F_{1}}{A_{1}} =\frac{F_{2}}{A_{2}}\)

where \(F_{1}\) is the force applied to the piston, \(A_{1}\) is the area of the piston, \(F_{2}\) is the force generated on the larger piston (required to lift the automobile), and \(A_{2}\) is the area of the larger piston.

Given the radius of the shaft (small piston) as 0.08 m and the radius of the piston as 0.01 m, we can calculate the forces applied and generated as follows:

\(A_{1} = \pi (0.08)^2\\A_{2}= \pi (0.01)^2\)

\(\frac{F_{1}}{A_{1}} =\frac{F_{2}}{A_{2}}\)

Simplifying the equation and substituting the values, we can solve for \(F_{2}\):

\(F_{2}=\frac{F_{1}A_{2}}{A_{1}}\)

Plugging in the values, we find:

\(F_{2}=\frac{F_{1} \pi (0.01)^2 }{ \pi (0.08)^2} \\F_{2}= \frac{F_{1}\times 0.0001}{0.0064} \\F_{2}= 0.015625 \times F_{1}\)

Given that the mass of the automobile is 1520 kg and the acceleration due to gravity is \(9.8 \hspace m/s^{2}\), we can equate \(F_{2}\) to the weight of the automobile:

\(F_{2}= mg\\0.015625\times F_{1}= 1520\times 9.8\)

Solving for \(F_{1}\), we find:

\(F_{1}\approx \frac{1520\times 9.8}{0.015624} \\F_{1} \approx 19072 \hspace N\)

Therefore, a force of approximately 19,000 N must be applied to the piston in order to raise the automobile using the hydraulic lift.

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If a dozen identical lightbulbs are connected to a given EMF (electromotive force), the bulbs will be brighter when they are connected in parallel.

EMF stands for Electromotive Force, which is the electrical potential difference between two points in a circuit that drives the current flow. It is also known as voltage or electric potential. In practical applications, EMF is often used to calculate the power or energy output of a device or system. It is also a crucial parameter in understanding the behavior of circuits and designing electrical devices and systems.

EMF is measured in units of volts (V) and is a fundamental concept in electrical engineering and physics. It is produced by various sources, such as batteries, generators, and solar cells. The EMF is the energy per unit charge required to move a charge from one point to another in a circuit. It is related to the strength of the electric field between the two points and the distance between them.

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The rotating equivalent of force is torque. Depending on the subject of study, it is also known as the moment, moment of force, rotating force, or turning effect.

A coil's torque is determined by:

equals niABsin

where I is the coil's current

Area of the coil equals A.

Magentic field = B

n is the coil's total number of turns.

and = angle between the field B and area vector A

The maximum torque would occur at 900, where sinθ = 1.

Maximum torque therefore equals niAB.

alternatively 5.8N-m = (1200) i(1.1x10-2m2) (0.20-T)

or the coil's current, I is 2.196A

The formula for torque is rF=rFsin(r). To put it another way, the cross product of the distance vector and the force vector, where 'a' is the angle between r and F, is what is known as torque (the distance between the pivot point and the place where force is applied).

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Answer:

cause it got charged

Explanation:

The fundamental frequency of the person's auditory canal can be calculated using the formula f = v/2L, where v is the speed of sound in air and L is the length of the canal. Plugging in the values, we get f = 343/(2*0.024) = 3575 Hz or 3.57 kHz. The wavelength can be calculated using the formula λ = 2L, which gives us λ = 2*0.024 = 0.048 m or 4.8 cm. This sound is audible as the range of human hearing is typically considered to be between 20 Hz and 20 kHz.

To find the frequency of the highest audible harmonic, we need to consider the resonant frequencies of the canal. The resonant frequencies of a pipe can be calculated using the formula fn = n(v/2L), where n is the mode number or harmonic. The highest audible harmonic is the one that corresponds to the highest resonant frequency that falls within the audible range.

Substituting the values, we get fn = n(343/0.048) = 7146n. The highest audible harmonic would be the one where 7146n is closest to 20,000 Hz, the upper limit of human hearing. Solving for n, we get n = 2.8, which means the third harmonic is the highest audible one. Therefore, the frequency of the highest audible harmonic is 3*3575 Hz or 10.7 kHz.

In conclusion, the person's auditory canal has a fundamental frequency of 3.57 kHz and a wavelength of 9.60 cm, making this sound audible. The highest audible harmonic is the third harmonic, with a frequency of 10.7 kHz.

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In a one-dimensional string, a harmonic wave has a maximum transverse velocity and maximum transverse acceleration of 1ms-1 and 1ms-2, respectively.

We have attached a harmonic wave with a frequency of 80 Hodge to the string. Additionally, a positive extraction travels at a speed of 12 m/s with an amplitude of 0.025 m. Next, we must create a proper wave function for this wave in the first. In light of this.

we have established that the frequency F is the hurt amplitude is 0.025 m, and the speed is 12 m/s. As a result, given that we are aware of the wave function's writing, we may determine whether or not the sign K x minus omega T applies. Omega, which equals two pi into, is the angular frequency in this case. Thus, we can say that this word has been introduced. 80 is to be purchased That makes 160 by, too.

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The momentum of the clay and the cart is 34 kgm/s.

Momentum can be defined as the product of mass and velocity.

To calculate the momentum of the clay and the cart, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, their momentum is 34 kgm/s.

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