two notes are sounding, one of which is 440 hz. if a beat frequency of 5 hz is heard, what is the other notes frequency?

A hydraulic lift's input pressure is 1200 Pa. If the output force on the other side is 800 N, the output surface area is 0.67m^2

Given the input pressure (P1) = 1200Pa

Output force (F2) = 800N

We know that P= F/A where A is area of cross section

Let the input force be F1 and area is A1

Then by pascals law we say that:

F1/A1 = F2/A2

1200 = 800/A2 (since P1= F1/A1)

A2 = 8/12 = 0.67m^2

Hence the area of other side = 0.67m^2

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Answer:

Watershed should be your answer!

Answer: 18 5.0 012

Explanation:

a) To find the speed of the signal in water, we can use the equation:

Speed = Wavelength x Frequency

Where Wavelength is given as 1.5 mm and Frequency is given as 1 x 10^6 Hz.

Speed = 1.5 x 10^-3 m x 10^6 Hz = 1.5 x 10^3 m/s

So the speed of the signal in water is 1.5 x 10^3 m/s

b) To find the period in water, we can use the equation:

Period = 1 / Frequency

Where Frequency is given as 1 x 10^6 Hz

Period = 1 / (1 x 10^6) s = 1 x 10^-6 s = 1 microsecond

So the period of the signal in water is 1 microsecond

c) The speed of sound in air is approximately 343 m/s. Since the frequency of the signal remains constant and the speed of sound in air is different than the speed of sound in water, the wavelength of the signal will also be different. However, since the period is inversely proportional to the frequency and is independent of the medium, the period of the signal in air will be the same as in water, which is 1 microsecond.

A system which undergoes an adiabatic change. The work done and the change in the internal energy are: W>0,  AE > 0 (option d)

Adiabatic process is a thermodynamic process in which no heat goes into or out of a system and all internal energy is changed by work.

Adiabatic operations are frequently carried out in an insulated container, where the process occurs too quickly for heat to be transferred. Because heat transfers due to a temperature difference between a system and its surroundings, an adiabatic process can occur even when the system is in thermal equilibrium.

The first law of thermodynamics is:

ΔU = Q + W

Where:

ΔU = change in internal energy

Q = heat transfer

W = work done

In the given problem, the internal energy is represented by AE, hence, we can write:

AE = Q + W

Since there is no change in heat energy, Q = 0, therefore,

AE = W

The work done in an adiabatic process is positive. Therefore, the correct answer is W>0,  AE > 0 (option d)

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The magnitude of the loss of electric potential is 6.4 kV.

The magnitude of the loss of electric potential (∆V) can be calculated by subtracting the electric potential at point Q from the electric potential at point P. The formula is given by:

\( \Delta V = V_P - V_Q \)

Where ∆V represents the magnitude of the loss of electric potential, V_P is the electric potential at point P, and V_Q is the electric potential at point Q.

In this specific scenario, the electric potential at point P is 10 kV (kilovolts) and the electric potential at point Q is 3.6 kV. Substituting these values into the formula, we can determine the magnitude of the loss of electric potential.

∆V = 10 kV - 3.6 kV = 6.4 kV

Therefore, This value represents the difference in electric potential between the two equipotential points P and Q, as the charge +18 e moves from one to the other.

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One statement that is not true is that UV radiation is a type of electromagnetic radiation. It is also a type of ionizing radiation. UV radiation is actually a form of non-ionizing radiation.

UV radiation, or ultraviolet radiation, is a type of electromagnetic radiation that falls between visible light and X-rays on the electromagnetic spectrum. It is often categorized into three types: UVA, UVB, and UVC. Unlike ionizing radiation, such as X-rays and gamma rays, which have enough energy to remove tightly bound electrons from atoms or molecules, UV radiation lacks the necessary energy to ionize atoms or molecules. Instead, it primarily interacts with the outermost electrons of atoms or molecules, leading to chemical reactions and causing biological effects.

UV radiation is commonly associated with sunlight and has various effects on living organisms and materials. It can cause sunburn, premature aging of the skin, and an increased risk of skin cancer. Exposure to excessive UV radiation can also damage the eyes and impair the immune system. It is important to protect oneself from excessive UV exposure by wearing sunscreen, protective clothing, and sunglasses.

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Answer:

Cu2+

Explanation:

Answer:

I'm positive the Answer to this would be C :)

Entropy changes that are positive (+) indicate more chaos. The entropy of the universe is increasing. The entropy of a universe increases whenever there is any spontaneous change.

As the ice melts, the molecules grow disorganised as they are now able to move about. The water is then heated to transform into a gas, releasing the molecules to move freely through space. Both of the above reactions would have a positive entropy (DS).

Positive entropy indicates an increase in randomness in a system. Positive entropy processes include boiling and evaporation. A system has less randomness when the entropy is negative. A few instances of negative entropy processes include freezing and condensation.

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The acceleration of an object can be split into two components: the tangential and normal components. The tangential component points along the direction of motion and is responsible for changing the speed of the object. The normal component is perpendicular to the direction of motion and is responsible for changing the direction of motion.

In your skiing example, the direction of your acceleration will change as you move uphill, downhill, up a ramp, and make a turn. Therefore, the tangential and normal components of your acceleration will also change in direction and magnitude.

As you ski uphill, your acceleration will be pointing in the opposite direction of your motion, resulting in a negative tangential acceleration. Since your motion is mostly vertical, your normal acceleration will be pointing upwards.

As you ski downhill, your acceleration will be in the same direction as your motion, resulting in a positive tangential acceleration. Your normal acceleration will still be pointing upwards.

When you go up a ramp, your acceleration will be a combination of tangential and normal components. The tangential component will be pointing upwards to match your velocity, and the normal component will be pointing perpendicular to the ramp.

When you land, your acceleration will be mostly normal, as you decelerate your downward motion and start to move horizontally.

Finally, when you make a turn, your tangential acceleration will be pointing in the direction of the turn, while your normal acceleration will be perpendicular to the turn.

Overall, the direction and magnitude of the tangential and normal components of your acceleration will depend on the direction and magnitude of your velocity and the curvature of your path.

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Yes, it contains two leading zeroes.

A leading zero are zeroes before the non-zero digits.

There are 2 zeroes before the non-zero digits.

Best of Luck!

Answer:

Long-period comets have orbital periods longer than 200 years. ... Since it is the sublimation of these volatiles from the nucleus of the comet as it nears the Sun that gives rise to the coma and highly-visible tails, long-period comets have more material with which to put on a show.

Explanation:

Answer:

there is no context??????

When we convert 4900mm from two-step dimensional analysis it would be 490 cm and 5.59kL to 5923.667 quarts.

Dimensional Analysis is a technique for analysis where physical quantities are expressed in terms of their basic dimensions and is frequently applied when there is insufficient data to create accurate equations.

As given in the problem we have to convert

4900mm to cm

As we know that there  are 1000 mm in 1 m

1000 mm = 1 m

4900 mm = 4.9 m

1 m = 100 cm

4.9 m = 4.9×100

          =490 cm

As we have to convert 5.59kL to quarts

1 Kiloliter =  1056.69 US liquid quart

5.59kL    = 5.59 ×1056.69 quarts

               =5923.667 quarts

Thus, we converted 4900mm to 490 cm and 5.59kL to 5923.667 quarts.

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Answer:

To answer your question:

a) The formula to calculate the number of wavelengths within a laser pulse is:

number of wavelengths = pulse duration / wavelength

Plugging in the values given in the question, we get:

number of wavelengths = 38 ps / 1062 nm

Converting picoseconds to seconds and nanometers to meters, we get:

number of wavelengths = 38 x 10^-12 s / 1062 x 10^-9 m

number of wavelengths = 0.0358

Therefore, there are approximately 0.0358 wavelengths within the laser pulse.

b) To fit only one wavelength, the pulse duration would need to be equal to the wavelength. The formula to calculate the pulse duration is:

pulse duration = wavelength

Plugging in the value given in the question, we get:

pulse duration = 1062 nm

Converting nanometers to picoseconds using the speed of light ©, we get:

pulse duration = wavelength / c

pulse duration = 1062 x 10^-9 m / 3 x 10^8 m/s

pulse duration = 3.54 x 10^-12 s

Therefore, the pulse would need to be approximately 3.54 ps long to fit only one wavelength.

I hope this helps

Answer:

whatttt

Explanation:

what do u ask boy? just ask.

The magnitude of its momentum just before it hits the ground is 0.88kg m/s

Momentum is the product of the mass of the body and its velocity. A vector quantity that has magnitude and direction. If m is the mass of an object and v is its velocity (which is also a vector quantity), then the object's momentum p is:  

p=mv

In the International System of Units (SI), the unit of measure for momentum is the kilogram meter per second (kg m/s), which is equivalent to the Newton second.(F=ma)

Final velocity:

v^2= u^2+2as

v^2=0+ 2(g) h

v= √(2gh) =√(2×9.8×2.0)

v=6.26 m/s

Momentum:

p=mv =0.14×6.26

p= 0.876= 0.88 kg m/s

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Answer:

They vary quite a lot, yet there are some similarities

Explanation:

With Mercury, you have a hot and barren expanse of rock

With Venus, you also have a fairly hot and barren expanse of rock, with a molten core

With Earth, you have a warm/cool variant with water and a full atmosphere

With Mars, you have a colder and barren expanse of valleys and rock, with a rather paste-like ground

With Jupiter, we have our first gas giant, covered in clouds with a thick atmosphere

With Saturn, it is yet another gas giant, with rings of gas and rock and a dense core of metals, such as iron and nickel

With Uranus, it is also rather gas-full with a fair amount of water and methane, which results in its bluish color (an ice giant)

And finally with Neptune, it is the other ice giant, consisting of water, methane, and ammonia

So there are some similarities (gases, water, land formations, etc.) and some differences (rings, temperature, structure, etc.). Our planets are very unique to one another and continue to engage and surprise us.

A distance-time graph is a graphical representation of the relationship between the distance travelled by an object and the time it takes to travel that distance.

The slope on a distance-time graph is equivalent to the object's speed at a particular time.

In other words, the slope is the ratio of the distance traveled and the time taken, which is equal to speed, as seen in the image below:

Therefore, if the slope is steeper, it implies that the object has a higher speed, and if the slope is shallower, it implies that the object has a slower speed.

As a result, the slope of a distance-time graph indicates the speed of an object, allowing for the visualization and interpretation of an object's motion.

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Cis-2-butene can be prepared from propyne, an alkyl halide, and other reagents by carrying out several reactions.

First, the propyne is reacted with an alcohol and a base, such as NaOH, to form an alkyl bromide. Then, this alkyl bromide is heated in the presence of a strong acid such as H₂SO₄ to form cis-2-butene. Finally, the cis-2-butene is separated from the reaction mixture by distillation.

To begin, propyne is reacted with an alcohol and a base, such as NaOH, to form an alkyl bromide. This reaction is called alkylation, and it occurs when a hydrogen atom is replaced by a halide, in this case a bromide.

The alkyl bromide formed is then heated in the presence of a strong acid such as H₂SO₄ to form cis-2-butene. This reaction is known as an E2 reaction, which is a type of elimination reaction.

Finally, the cis-2-butene is separated from the reaction mixture by distillation, where the different components of the mixture are separated based on their different boiling points.

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Answer:

Opera seria,

Explanation:

The power is a dependent parameter on work done for a given interval of time. The magnitude of power developed due to the applied force is 339 W.

The rate of doing work is known as Power. Mathematically, the power is equal to the ratio of work and time interval.

Given data -

The distance covered by the box is, d = 27.0 m.

The magnitude of the constant force is, F = 113 N.

The time interval for the application of force is, t = 9.00 s.

The expression for the power developed is given as,

P = W/t

here, W is the work done and its value is, W = F × d.

Solving as,

P = F × d/t

Solving as,

P = 113 × 27.0/9.0

P = 339 W

Thus, we can conclude that the magnitude of power developed due to the applied force is 339 W.

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The electric potential at location 3 is 3 V.

To determine the electric potential at location 3, we can use the principle of conservation of energy. The electric potential energy gained or lost by a charged particle as it moves through an electric field is converted into kinetic energy.

Let's assume the mass of both protons is m and the charge of each proton is e. The electric potential energy gained or lost by a proton can be calculated using the formula:

ΔPE = qΔV

where ΔPE is the change in potential energy, q is the charge of the proton, and ΔV is the change in electric potential.

From the given information, the electric potential at location 1 (V₁) is 231 V, and the electric potential at location 2 (V₂) is 115 V. Therefore, the change in potential from location 1 to location 2 (ΔV₁₂) is:

ΔV₁₂ = V₂ - V₁ = 115 V - 231 V = -116 V

Since the first proton has a speed that is 3 times the speed of the second proton when they both reach location 3, we can write the following relationship between their kinetic energies:

(1/2)mv₁² = (3/2)(1/2)mv₂²

Simplifying the equation, we get:

v₁² = 9v₂²

Taking the square root of both sides, we have:

v₁ = 3v₂

Since kinetic energy is directly proportional to the square of velocity, the ratio of their kinetic energies can be written as:

(1/2)mv₁² / (1/2)mv₂² = v₁² / v₂² = 9v₂² / v₂² = 9

Now, we equate the change in potential energy to the change in kinetic energy:

qΔV₁₂ = (1/2)mv₁² - (1/2)mv₂²

Substituting the values, we have:

e(-116 V) = (1/2)m(9) - (1/2)m

Simplifying the equation and canceling out the mass (m) and the charge of the proton (e), we find:

-116 = (9/2) - (1/2)

Rearranging the equation and solving for ΔV₃, the change in potential from location 2 to location 3, we obtain:

ΔV₃ = -116 + 4 = -112 V

Finally, to find the electric potential at location 3 (V₃), we add ΔV₃ to the electric potential at location 2 (V₂):

V₃ = V₂ + ΔV₃ = 115 V - 112 V = 3 V

Therefore, the electric potential at location 3 is 3 V.

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Answer:

someone you trust the most

Explanation:

Answer: 300N

Explanation:

Impulse= Mass * Velocity

F.T = M * V

F= MV/T

F= (0.15*20)/ 0.01

F= 300N

Jack's preferences are strictly monotonic and exhibit diminishing marginal utility.

Strictly convex preferences mean that Jack's preferences between two bundles of goods do not change as the proportion of goods in the bundle changes. In other words, Jack values diversity of goods and the more he has of one good, the less he values additional units of that good.

The fact that Jack finds the bundles (1,9) and (9,1) to be indifferent means that he values both of these bundles equally, or in other words, he has the same utility from both of these bundles. This implies that Jack's marginal utility of the two goods decreases as he consumes more of either of them.

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Answer:

80 amperes

Explanation:

Current = Voltage/Resistance

160/2 = 80