In a section of horizontal pipe with a diameter of 3.00 cm the pressure is 100kPa and water is flowing with speed of 1.50 m/s. The pipe narrows to 2.00cm. What is the pressure in the narrower region?

The magnitude of the force on the wire is 1.9 × 10⁻⁴ N. The direction of the current is 50° south of the west. 1.9×10 N⁻⁴, out of the Earth's surface is the correct option.

Length of the horizontal wire, L = 3.0 m

Current flowing through the wire, I = 6.0 A

Earth's magnetic field, B = 0.14 × 10⁻⁴ T

Angle made by the current direction with due west = 50° south of westForce on a current-carrying wire due to the Earth's magnetic field is given by the formula:

F = BILsinθ, where

L is the length of the wire, I is the current flowing through it, B is the magnetic field strength at that location and θ is the angle between the current direction and the magnetic field direction

Magnitude of the force on the wire is

F = BILsinθF = (0.14 × 10⁻⁴ T) × (6.0 A) × (3.0 m) × sin 50°F = 1.9 × 10⁻⁴ N

Earth's magnetic field is due north, the direction of the force on the wire is out of the Earth's surface. Therefore, the correct option is 1.9×10 N⁻⁴, out of the Earth's surface.

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Explanation:

120+ 120 = 240 miles divided 1 hours 20 seconds

Answer:

stove

Explanation:

The stove is the independent variable in this question as it does not depend on anything like other variables such as pot, water, temperature and of cause pasta.

The pot depends on the stove, the water depends on the pot and stove, the pasta depends on the water and its temperature.

Cheers.  

Answer:

acid and bases

Explanation:

Answer:

The escalator does more work and the elevator has a greater power output.

Explanation:

The escalator does more work on the person because it is carrying them up. It also gives the person a chance to walk up the escalator making it a little more challenging than using just an elevator. The elevator has a greater power output because it can transport a person from one floor to another in just 10 seconds where as the escalator can do it in 15.

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Adipocere is chemically similar to a soap. This is the only true statement regarding adipocere.

Adipocere is chemically similar to a soap. Adipocere, also known as grave wax, is a waxy substance that is created by the hydrolysis of fat (lipids) under certain conditions. It is chemically similar to soap because it is composed of fatty acids and glycerol. Adipocere is most commonly found in graves or burial sites where the conditions are suitable for its formation. It is a useful forensic tool because it can be used to estimate the time of death of a body based on the presence and extent of adipocere formation.

Let's look at the other statements one by one:

Statement 1: Also known as grave wax: This statement is true, but it does not provide any additional information regarding the chemical or biological properties of adipocere.

Statement 2: Created by a hydrolysis reaction: This statement is partially true, but incomplete. Adipocere is created by the hydrolysis of fat (lipids), which is a specific type of hydrolysis reaction.

Statement 4: Created from a carbohydrate: This statement is completely false. Adipocere is created from fat (lipids), not carbohydrates.

Therefore, the correct answer is option 3:

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Answer:

T = 2.28 s

Explanation:

Given that,

The radius of the wheel, r = 0.4 m

The tangential velocity of the wheel, v = 1.1 m/s

We need to find the period of the ball as it travels around the wheel. Let it is T. We know that, the tangential speed is given by :

\(v=\dfrac{2\pi r}{T}\\\\T=\dfrac{2\pi r}{v}\\\\T=\dfrac{2\pi \times 0.4}{1.1}\\\\T=2.28\ s\)

So, the period of the ball is equal to 2.28 s.

Answer:

you know the answer i answered it before on a question 0-0

Explanation:

The angle of incidence equals the angle of reflection. When a ray of light strikes a pane of window glass at a perpendicular angle, it passes through the glass and exits at a perpendicular angle on the other side.

However, if the ray of light strikes the glass at an angle, it is reflected off the surface of the glass at the same angle.The angle of incidence (angle at which a ray of light strikes a pane of window glass) is equal to the angle of refraction (angle at which it passes out the other side).

This is because when light hits a surface at an angle, it bounces off at the same angle. The angle of incidence is the angle between the ray of light and the perpendicular to the surface. The angle of refraction is the angle between the ray of light and the perpendicular to the surface.

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k is the number of standard deviations greater than one that that proportion of observations will be discovered within.

A standard deviation measures the spread of data in relation to the mean.

A low standard deviation suggests that the data is concentrated around the mean, whereas a high standard deviation shows that the data is spread.

A standard deviation near 0 suggests that data points are close to the mean, whereas a high or low standard deviation indicates that data points are above or below the mean, respectively.

The curve on top of Image 7 is more spread out and hence has a higher standard deviation, whereas the curve below is more grouped around the mean and thus has a smaller standard deviation.

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If the standard free energy change for the following reaction is 474.4 kJ/mol. Then the equilibrium constant \(K_p\) for the reaction is \(3.58 * 10^{-28}\).

The relationship between the equilibrium constant and the standard free energy change must be used to determine the equilibrium constant \(K_p\) for the reaction:

ΔG° = -RT ln Kp

where ΔG° is the standard free energy change, R is the gas constant (8.314 J/(mol·K)), T is the temperature in Kelvin, and Kp is the equilibrium constant.

ΔG° = 474.4 kJ/mol × 1000 J/kJ = 474400 J/mol

Given the temperature is 298 K (25°C), we can substitute the known values into the equation and solve for \(K_p\):

\(474400 = -8.314 * 298 * ln (K_p)\)

\(ln(K_p)=-\frac{474400}{(8.314*298)}\)

\(ln(K_p)=-63.38\)

\(K_p=e^{(-63.38)\)

\(K_p = 3.58 * 10^{(-28)}\)

Hence, the equilibrium constant \(K_p\) for the reaction is \(3.58 * 10^{-28}\).

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The complete question is:

The standard free energy change for the following reaction is 474.4 kJ/mol. what is the equilibrium constant Kp for the reaction at 25°C?

\(N_2(g) + 3H_2 (g) < - - > 2NH_3 (g)\)

Answer:

H = 1/2 g t^2      time to fall H

t = (2 H / g)^12 = (2 * 2 / 9.80)^1/2 = .639 sec

Sx = Vx * t = 9 m/s * .639 s = 5.75 m      horizontal distance traveled

Astronomers switch from Cepheid variable stars to Type Ia supernovae as a measuring standard beyond 30 Mpc because Type Ia supernovae are brighter and can be seen at greater distances, allowing for more accurate measurements of distance.

Astronomers use various methods to measure the distances to celestial objects. One of the most common methods is the use of standard candles, which are objects with a known intrinsic brightness that can be used to infer their distance based on their observed brightness.

Cepheid variable stars are one type of standard candle that have been used by astronomers for decades to measure the distances to nearby galaxies up to about 30 megaparsecs (Mpc) away.

Type Ia supernovae, on the other hand, are much brighter than Cepheids and can be observed at much greater distances. They are produced by the explosion of a white dwarf star in a binary system, and their peak brightness is known to be remarkably consistent. This makes them ideal standard candles for measuring distances to galaxies at much greater distances than Cepheids.

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Answer:

C equal numbers of electrons and protons

Explanation:

The neutron star that pulses 600 times per second must have had its angular momentum changed by a binary companion.

Neutron stars that pulse are known as pulsars and their pulses are caused by their rotation. The rate of pulsation is directly related to the neutron star's angular momentum. A pulsar that pulses faster must have a smaller radius and higher angular velocity than a pulsar that pulses slower.

Therefore, a pulsar that pulses 600 times per second must have a very small radius and high angular velocity, which can only be achieved by a change in its angular momentum. The most likely cause of this change in angular momentum is a binary companion transferring angular momentum to the pulsar.

In conclusion, a neutron star that pulses 600 times per second is the one that must have had its angular momentum changed by a binary companion.

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Answer:

d

Explanation:

Answer:E

Explanation: it's literally resistance

Given that the mass of the ball is m = 0.57 kg.

The speed of the ball is

A) The kinetic energy at point A will be

B) Given that the kinetic energy,

The ball's speed at point B will be

C) The total work done on the ball to move from point A to B is

The force exerted by Howard on the rope to make it move at a constant speed is 140.24 N.

The force that Howard must exert on the rope to move at a constant speed is calculated by applying Newton's second law of motion as follows:

F - Ff = ma

F: the applied force

Ff: the frictional force

m: the mass of the crate's mass

a: the acceleration of the crate (at a constant speed, acceleration: a = 0)

F = Ff

F = μmg

Given in question

F = μmg

F = 0.159 x 90 x 9.8

F = 140.24 N

Then the force Howard exerts on the rope to move at a constant speed is 140.24 N

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Answer: ratty

Explanation: u r ratty

Answer:

The male gamete is smaller in comparison to that of the female gamete.

The male gamete is conical from the front while the female gamete is spherical.

The cytoplasm in the male gamete is less in comparison to that of the female gamete.

The male gamete can move with the help of the tail while the female gametes are immobile and do not have any tail or flagella present.

The number of mitochondria present in the sperm is less than the number of mitochondria present in the ovum.

The male gamete has acrosome present in the head region that contains enzymes for dissolving the membranes present around the ovum. The ovum does not contain such digestive enzymes.

Explanation:

Answer:

MALE GAMETES:

1)A male gamete is the male reproductive cell, which unites with the female gamete to produce the zygote.

2)Produced by spermatogenesis.

3)Produced in testes.

4)Smaller than female gametes.

5)Swims using tails.

6)Uses sugar in seminal fluid.

FEMALE GAMETES:

1)A female gamete is the female reproductive cell, which unites with male gamete to form the zygote.

2)Produced by oogenesis.

3)Produced in the ovaries.

4)Larger than male gametes.

5)Does not move by itself.

6)Uses protein and fat in the cytoplasm.

in short

Gametes are an organism's reproductive cells. They are also referred to as sex cells.

Female gametes are called ova or egg cells,  and male gametes are called sperm. In contrast, each egg cell, or ovum, is relatively large and non-motile.

hope this helps you friend

Answer:

273.15

Explanation:

So that's three over two times 1.38 times ten to the minus twenty-three joules per Kelvin, times 5500 degrees Celsius, the surface of the sun converted into Kelvin by adding 273.15. This works out to 1.20 times ten to the minus nineteen joules. So that's the average kinetic energy of hydrogen atoms.

It is important to note that the debate between scientific realism and antirealism is ongoing and complex, with various nuances and perspectives within each position. Different philosophers of science and scientists may hold different views on the nature of scientific terms and their relationship to reality.

According to a scientific realist perspective, scientific terms for unobservable phenomena such as "atom" and "black hole" are seen as referring to entities that truly exist in reality. Scientific realists believe that scientific theories and concepts accurately capture aspects of the world, including unobservable entities and phenomena. They argue that scientific theories provide the best explanation of the natural world and aim to describe the underlying structure and mechanisms of reality.

On the other hand, scientific antirealists hold a different view. They argue that scientific terms that refer to unobservable phenomena do not necessarily correspond to something that exists independently in reality. Antirealists often emphasize the instrumentalist view of science, which suggests that scientific theories are simply tools or frameworks that help us organize and predict observable phenomena, without making claims about the ultimate nature of reality.

Antirealists may argue that scientific theories are subject to revision and change over time as new evidence emerges, suggesting that the terms used to describe unobservable phenomena are not fixed and may not have a one-to-one correspondence with actual entities in reality. They may also highlight the role of social and cultural factors in shaping scientific knowledge, suggesting that scientific terms are influenced by human conventions and interpretations.

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Answer:

Pressure and force are related, and so you can calculate one if you know the other by using the physics equation, P = F/A. Because pressure is force divided by area, its meter-kilogram-second (MKS) units are newtons per square meter, or N/m2.

The principle of moments states that when a body is balanced the total clockwise moment about a point equals the total anticlockwise moment about the same point.Equation.Moment=Force F×perpendicular distance from the pivot do.