Water flows through a fire hose of diameter 6.4 cm at a speed of 3.8 m/s. The fire hose ends in a nozzle of diameter 2.2 cm. If we assume the outside pressure is atmospheric pressure, what is the absolute pressure (in Pascals) in the wider part of the hose

Cesium has 37 isotopes. One of Cesium's most stable isotopes undergoes beta decay to form Barium-135. 135 Cs 55 is the correct isotopic notation for the original Cesium isotope before it decayed.

Beta decay is a radioactive decay in which a proton is converted into a neutron or vice versa inside the nucleus of the radioactive sample.

In beta decay, an electron is ejected which increases the atomic number.

135Cs55 ⇒135Ba56  + 0e-1

Cesium      Barium      beta particle

Thus, 135 Cs 55 is the correct isotopic notation for the original Cesium isotope before it decayed.

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Answer:

More horsepower = more power use.

Explanation:

Horsepower is just a measure of power, similar to Watts (1 horsepower = 745.7 W). So, as a simple example, a lightbulb that uses 1 hp will have a higher power use than a lightbulb that uses 2 hp.

Answer:

She was her mother.

:-)

Answer:

She was her mother.

Explanation:

The momentum of a photon is given by the equation p = h/λ, where p is the momentum, h is the Planck's constant, and λ is the wavelength of the photon.

To compare the momentum of a photon in the x-ray range at 100 pm (picometers) and one in the visible range at 550 nm (nanometers), we can use the equation:

\(p_\text{x-ray} = \frac{h}{\lambda_\text{x-ray}}\)

\(p_\text{visible} = \frac{h}{\lambda_\text{visible}}\)

To determine how many times greater the momentum of the x-ray photon is compared to the visible photon, we can calculate the ratio:

\(\text{Ratio} = \frac{p_\text{x-ray}}{p_\text{visible}}\\ \\= \frac{h}{\lambda_\text{visible}} \cdot \frac{\lambda_\text{x-ray}}{h} \\\\=\frac{\lambda_\text{x-ray}}{\lambda_\text{visible}}\)

Substituting the values, we have:

\(\lambda_\text{visible}\) = 550 nm = 550 × \(10^{-9}\) m

\(\lambda_\text{x-ray}\) = 100 pm = 100 × \(10^{-12}\) m

Ratio = (550 × \(10^{-9}\) m) / (100 × \(10^{-12}\) m)

= 5500

Therefore, the momentum of a photon in the x-ray range at 100 pm is approximately 5500 times greater than the momentum of a photon in the visible range at 550 nm.

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The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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Answer:

The lungs are lateral to the heart.

Explanation:

Answer:

lateral

Explanation:

Answer:

Down Below

Explanation:

As nouns the difference between speed and strength

is that speed is the state of moving quickly or the capacity for rapid motion; rapidity while strength is the quality or degree of being strong.

Answer:

Explanation:is that speed is the state of moving quickly or the capacity for rapid motion; rapidity while strength is the quality or degree of being strong.

Answer:

pretty far if you ask me

Answer:

B

Explanation:

One object speeds up before it slows to a stop.

When reading this type of graph, we know that when the points are far apart, then the object is definitely moving quickly. Also again, we know that when the points are besides each other, then we say that the object is moving slow. When the distance that is between the points are changed, the velocity of the object subsequently changes too, and therefore, we say that the object is accelerated. When there are lots of points in one location, we will see that the object is not moving.

This then translates into that

The object(s) at the top begins to slow, eventually, it increases in its speed, going forward, it slows down again, before it finally halts. The object at the bottom on the other hand, starts fast, before slowing down.

then:

"One object speeds up before it slows to a stop "

Answer:

the elastic constant of the spring=1.715

the length of the spring=0.28

Explanation:

we know that according to hooks law

F=-k x

F= force

k= elastic constant

x= extension or compression

given

length change from 35cm to 55 cm so delta x = L2-L1= 55-35=20 cm

now to find k we need F and F =ma

M for part a is 3.5 kg

so F=3.5 kg *9.8=34.3

now k=F/x

k=34.3/20=1.715 N/cm=171.5 N/m

now to find length given mass is 5 kg so

F= ma

F=5*9.8=49 N

so x =F/k

x=49/171.5

x=0.28

Answer:

To express this concept mathematically, the work W is equal to the force f times the distanced, or W = fd. If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.

The SI unit of work is the joule (J). It is defined as the work done by a force of one newton through a distance of one meter.

Explanation:

Work is done when a force is applied to an object through a distance. This means that when a force is applied to an object through a distance, the object's total energy will be affected.

Answer:

60 000 J

Explanation:

The PE will be converted to KE entirely (if the lowest point is ground level)

One advantage of transferring energy by electromagnetic waves is that they can propagate through a vacuum or empty space. The ability of electromagnetic waves to propagate through a vacuum or empty space enables wireless communication, harnessing solar energy, astronomical observations, and non-invasive medical imaging.

The ability to transfer energy through a vacuum has several important implications and advantages:

1) Wireless communication: The absence of the need for a physical medium allows for convenient and versatile communication methods.

2) Solar energy: Such as generating electricity through solar panels or utilizing solar thermal energy for heating and power generation.

3) Astronomical observations: Electromagnetic waves allow astronomers to study distant objects in the universe.

4) Medical imaging: These waves can penetrate tissues and allow for non-invasive diagnostic imaging techniques, providing valuable information about the internal structures of the human body.

The ability of electromagnetic waves to propagate through a vacuum or empty space enables wireless communication, harnessing solar energy, astronomical observations, and non-invasive medical imaging. This versatility and convenience make electromagnetic wave-based energy transfer advantageous in various fields of technology and scientific exploration.

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One advantage of transferring energy by electromagnetic waves is that they can travel over long distances without significant loss of energy.

Electromagnetic waves are a form of energy transfer that does not require a medium. They can travel through a vacuum, such as outer space, as well as through air, water, and other substances. One advantage of transferring energy by electromagnetic waves is that they can travel over long distances without significant loss of energy. This makes them ideal for long-distance communication, such as radio and television broadcasting, satellite communication, and wireless internet.

Unlike other forms of energy transfer, such as conduction or convection, electromagnetic waves do not require a physical medium to propagate. This means that they can travel through empty space, which is why we can receive signals from distant stars and galaxies. The ability to travel through a vacuum also makes electromagnetic waves suitable for communication in space missions and satellite-based technologies.

Another advantage of electromagnetic waves is their high speed of propagation. Electromagnetic waves travel at the speed of light, which is approximately 299,792,458 meters per second in a vacuum. This high speed allows for fast transmission of information, making electromagnetic waves essential for modern communication systems.

Furthermore, electromagnetic waves can be easily focused and directed. This property allows for efficient energy transfer in specific directions. For example, satellite dishes are designed to receive and transmit electromagnetic waves in a specific direction, ensuring reliable communication between satellites and ground stations.

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Answer:

pork, crustaceans, blood, non-halal animal-derived additives such as gelatin or suet, alcohol and any foods containing alcohol as an ingredient

To explain the tangent plane to the surface, `z = 53 − x² − 2y²` at the point `(3, 2, 6)`, let us first determine the partial derivatives of `z` with respect to `x` and `y`.

Partial derivative of `z` with respect to `x`, `∂z/∂x = -2x`Partial derivative of `z` with respect to `y`, `∂z/∂y = -4y`Now, let's find the gradient vector `grad z` at `(3, 2, 6)` and the value of `z` at `(3, 2)`.gradient vector `grad z = (-2x, -4y, 1)`gradient vector `grad z = (-6, -8, 1)` at `(3, 2, 6)`.Value of `z` at `(3, 2)` is given by `z = 53 - 3² - 2(2)² = 39`.

Therefore, the equation of the tangent plane to the surface `

z = 53 − x² − 2y²` at `(3, 2, 6)` is:

`z - 6 = -6(x - 3) - 8(y - 2)`

which can be written as:`6x + 8y + z = 50`Thus, the equation of the tangent plane to the surface `z = 53 − x² − 2y²` at the point `(3, 2, 6)` is `6x + 8y + z = 50`.

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340.14 \(\frac{meters}{second}\)= \(\frac{m}{s}\)          ☆                ☆                ⭐︎           ★             ★           ★            ★                ★

                            ☆               ★                     ★                    ☆              ★             ★        ☆          ⭐︎                        ★               ☀︎                   ✏☆                        ☽          ☂︎           ☔︎                

Meters per second is the unit that we get after dividing meters per seconds.

That's the unit we get after dividing distance by time.

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By using vector, the total displacement is 36 km.

We need to know about vectors to solve this problem. Vector has magnitude and also direction. Displacement is included in vector. It can be written as

s = sx i + sy j + sz k

where s is displacement, sx is displacement on x-axis, sy is displacement on y-axis and sz us displacement on z-axis.

From the question above, we know that

east = positive x

west = negative x

s1 = 92i km

s2 = -56i km

Hence, the total displacement is

s = s1 + s2

s = 92i - 56i

s = 36i

Find the magnitude

|s| = √sx²

|s| = √36²

|s| = 36 km

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Answer:

20 m

Explanation:

1 s = 4 m

5 s = ?

? = (4 x 5) = 20 meters

Answer:

distance = 0.8 m

Explanation:

given:

A bike travels at a constant speed of 4.0 m/s for 5.0s.

find:

How far does it go?

solution:

distance = speed / time

distance = 4.0 m/s

                     5 sec.

distance = 0.8 m

The ball will fly 0.201 m above its original position when released.

To answer this question, we need to use the conservation of energy principle. When the spring is compressed by 0.150 m, it has potential energy stored in it. When the spring is released, this potential energy is converted to kinetic energy, which is then transferred to the ball.

a) To find the upward speed of the ball, we need to use the formula for potential energy stored in a spring: PE = (1/2)kx^2

where PE is the potential energy, k is the spring constant, and x is the compression of the spring. Substituting the given values, we get:
PE = (1/2)(895 N/m)(0.150 m)^2 = 16.02 J

This potential energy is converted to kinetic energy as the spring is released. The formula for kinetic energy is: KE = (1/2)mv^2

where KE is the kinetic energy, m is the mass of the ball, and v is its upward speed. Substituting the given values and equating the two energies, we get:
(1/2)mv^2 = 16.02 J
v^2 = (2 x 16.02 J) / 0.30 kg
v = 6.23 m/s

Therefore, the upward speed that the spring can give to the ball when released is 6.23 m/s.

b) To find the height above the original position that the ball will reach, we can use the formula for gravitational potential energy: PE = mgh

where h is the height above the original position. At the maximum height, the ball will have zero kinetic energy and all of its potential energy will be converted to gravitational potential energy. Equating the two energies, we get:
(1/2)mv^2 = mgh
h = (v^2 / 2g)

Substituting the given values, we get:
h = (6.23 m/s)^2 / (2 x 9.81 m/s^2) = 0.201 m

Therefore, the ball will fly 0.201 m above its original position when released.

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Answer: An object is dropped from a height of 75.0 m above ground level.

Explanation: I hoped that helped !