A gas cylinder of cf2=cf2 is unexpectedly found to have lost all pressure. upon being sawn open, what was discovered?

(a) The work done by force in lb-ft is 300 lb-ft.

(b) The change in potential energy of the object is 200 lb-ft.

The work done by force in lb-ft is calculated as follows;

W = Fd

W = 30 x 10

W = 300 lb-ft

The change in potential energy of the object is calculated as follows;

ΔP.E = P.Ef - P.Ei

ΔP.E = 20 x 10 - 0 = 200 lb-ft

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The required items in order from shortest to longest: 0.01c < 0.1c < 0.25c < 0.5c

The length contraction phenomenon occurs when objects are observed from different reference frames moving at relativistic speeds. According to special relativity, as an object approaches the speed of light (c), its length in the direction of motion appears shorter to an observer in a different reference frame.

In this case, the observer moving at 0.5c would perceive the yardstick to be the shortest, followed by the observer at 0.25c, the observer at 0.1c, and finally, the observer at 0.01c would perceive the yardstick to be the longest. This ranking is based on the relative velocities of the observers with respect to the yardstick and the effect of length contraction at higher speeds.

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16.97 meters

First of all, let's list out the given values: Initial speed of the horizontally launched object (u)= 1.5 m/s. Height of the fall of objects (s)= 20mLet the distance between the objects at initial be 'x.'We know that the horizontally launched object has been in motion for a time equal to the time taken by the other object to fall 20 meters. Therefore, Let T be the time taken for the object to fall, Using formula 2s/g, (s= 20 m, g= 9.8 m/s²)20 = 0.5 * 9.8 * T²Therefore, T = 2.02 s. (approx.)Now, the distance traveled by the horizontally launched object in this time T is equal to the distance traveled by the free-falling object, given by: Distance = Initial speed * time traveled (using formula, s= ut)Distance = 1.5 m/s * 2.02 s = 3.03 m (approx.)Therefore, the total initial distance between the objects is equal to the distance traveled by the free-falling object plus the distance traveled by the horizontally launched object during this time. Therefore, Initial distance between the objects = 3.03 m + x = 20 m (given). Therefore, x = 16.97 m (approx.)Thus, the distance between the objects initially is approximately equal to 16.97 meters.

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Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

Answer:

this ans is 42.85

Explanation:

i dont not explain but i hipe you get it

The magnetic field at point P due to the current in the semicircular section of wire can be calculated using the Biot-Savart law.

The long, straight section of the wire does not produce any magnetic field at point P because the magnetic field produced by a straight wire is perpendicular to the wire itself, and point P is not in the plane of the wire.

To calculate the magnitude of the magnetic field at point P, we can break down the semicircular wire into infinitesimally small current elements. The magnetic field produced by each small current element can be calculated using the Biot-Savart law.

The magnitude of the magnetic field at point P can be obtained by summing up the contributions from all the small current elements along the semicircular wire. This can be done by integrating the magnetic field equation over the entire length of the wire.

However, without the figure, it is not possible to provide specific calculations. Nonetheless, the Biot-Savart law and the concept of summing up the contributions from all the small current elements along the wire will help you calculate the magnitude of the magnetic field at point P.

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The wavelength of the incident light is approximately 314 nanometers.

The energy of a photon of light is given by:

E = hc/λ

where E is the energy of the photon, h is Planck's constant, c is the speed of light, and λ is the wavelength of the light.

In photoelectric emission, the energy of the incident photon must be greater than or equal to the work function (ϕ) of the metal in order for an electron to be ejected. The energy of the ejected electron is given by:

K = E - ϕ

where K is the kinetic energy of the electron.

In the case of the stopping potential (V_stop), the kinetic energy of the ejected electrons is equal to the potential energy required to stop them, so we have:

K = eV_stop

where e is the elementary charge.

Combining these equations, we get:

E = K + ϕ = eV_stop + ϕ

Substituting the values given in the problem, we get:

hc/λ = eV_stop + ϕ

(6.626 ×  J s) × (3.00 × \(10^8\) m/s) / λ = (1.602 × 10⁻¹⁹ C) × (7.5 V) + (3.1 eV) × (1.602 × 10⁻¹⁹ J/eV)

λ = hc / (eV_stop + ϕ)

λ = (6.626 ×10⁻³⁴ J s) × (3.00 × \(10^8\)m/s) / [(1.602 ×  10⁻¹⁹ C) × (7.5 V) + (3.1 eV) × (1.602 × 10⁻¹⁹J/eV)]

λ = 3.14 ×10⁻⁷ m

So the wavelength of the incident light is approximately 314 nanometers.

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Answer:

the galaxy is moving away from us and the magnitude of the displacement gives the value of the relative velocity

Explanation:

The wavelength and frequency of light is affected by the relative motion of the Source (galaxy) and the observer (us on Earth); when the shift is towards the red it indicates that the bodies are moving away from each other.

Consequently the galaxy is moving away from us and the magnitude of the displacement gives the value of the relative velocity

The weight is 200 N of a fish that would stretch the spring by 31.0 cm.

We can use Hooke's Law to solve this problem. Hooke's Law states that the force (F) needed to stretch a spring is proportional to the amount of stretch (x). The mathematical expression for Hooke's Law is:

F = kx

where k is the spring constant.

We can rearrange this equation to solve for k:

k = F/x

We can substitute the given values for F (135 N) and x (21 cm) to calculate the spring constant:

k = 135 N/21 cm

k = 6.43 N/cm

Now that we know the spring constant, we can use Hooke's Law to calculate the force needed to stretch the spring by 31 cm.

F = kx

F = 6.43 N/cm x 31 cm

F = 199.33 N

Finally, we can use the force to calculate the weight of a fish that would stretch the spring by 31 cm. Since weight is equal to force multiplied by the acceleration due to gravity (g = 9.8 m/s2), we can use the following equation:

Weight = F x g

Weight = 199.33 N x 9.8 m

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Length of :  |AB| = √(x2-x1)2 + (y2-y1)2

|AB| = √(x2-x1)2 + (y2-y1)2

|AB| = √(x2-x1)2 + (y2-y1)2

Sum of :  x1+x2+y1+y2

Angle :  θ = arctan2(y2-y1, x2-x1)

Length is a measure of distance in one dimension, typically described as the longest side of an object, such as a line, a road, or a wall. The most common unit of measurement is a linear one, such feet, miles, centimetres, or millimetres. Length can also be measured in three-dimensional units, such as inches, feet, yards, and miles, as well as in other units such as cubits, rods, and fathoms. In terms of physics, length is the physical property of an object that describes its overall size and shape, or the distance between two points.

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Answer:

Since the density of salt water is higher than that of fresh water.

Explanation:

Less salt water will be displaces and the ship will float higher.

Standard of measure is referred to as the specific measure to which and other measures are compared to ensure uniformity and examples include the standard unit for various parameters.

This is referred to an approved and accepted form of measurement against which others are measured or compared and an example is that of mass in which the standard unit is kilogram.

It is important to have a standard as it helps to ensure that there is uniformity when dealing with different types of bodies and their respective features or properties.

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Electrical conductors exist created up of metals such as copper, aluminum, etc. These metals exist utilized to create wires. Most wires exist created out of copper because it produces electricity with high flexibility and extremely little resistance.

Therefore, the correct answer is option b) a metallic conductor with free electrons surrounded by a rubber insulator lacking free electrons.

"A conductor, or electrical conductor, exists a substance or material that authorizes electricity to rush through it. In a conductor, electrical charge carriers, usually electrons or ions, shift smoothly from atom to atom when voltage exists used."

"Electricity exists both a fundamental aspect of nature and one of the most widely used structures of energy. The electricity that we use exists as a secondary energy source because it exists created by transforming primary sources of energy such as coal, natural gas, nuclear energy, solar energy, and wind energy, into electrical power."

Therefore, the correct answer is option b) a metallic conductor with free electrons surrounded by a rubber insulator lacking free electrons.

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Answer:

B - a metallic conductor with free electrons surrounded by a rubber insulator lacking free electrons

Explanation:

When a crest of a wave reaches a fixed end or boundary, such as a wall or a rigid barrier, it is reflected back. The reflection of a wave occurs due to a change in the medium or a boundary that the wave encounters.

In the case of a fixed end, the reflection is known as "specular reflection" because the wave reflects off the surface in a predictable manner. Here's what happens:

1. Upon reaching the fixed end, the wave encounters a change in the medium or a boundary. In this case, the medium on one side of the boundary is different from the medium on the other side.

2. At the boundary, the wave encounters an abrupt change in the properties of the medium, such as density or elasticity. This change causes the wave to reverse its direction.

3. The crest of the wave is reflected back from the fixed end in such a way that the angle of incidence (the angle between the incident wave and the normal to the boundary) is equal to the angle of reflection. This principle follows the law of reflection.

4. The reflected wave carries the same characteristics (frequency, wavelength, amplitude) as the incident wave, but it travels in the opposite direction.

In summary, when a wave crest reaches a fixed end, it undergoes specular reflection, bouncing back from the boundary with the same frequency, wavelength, and amplitude, but traveling in the opposite direction.

The law of reflection ensures that the angle of incidence is equal to the angle of reflection.

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Answer:

\(1.5 * 10^6\)

Explanation:

Given

Digit: 1,500,000

Required

Represent using scientific notation

We start by expressing the given digit as a product of 1.5 and a multiple of 10

\(Digit = 1.5 * 1,000,000\)

1,000,000 can be represented as 10⁶

So; the digit becomes

\(Digit = 1.5 * 10^6\)

Hence, the scientific notation of 1,500,000 is 1.5 * 10⁶

An action potential, which is produced when a neuron is triggered, travels along the length of a axon and towards a connected neuron.

The sodium ions in the cellular membranes open in response to a nerve impulse, a process by which neurons interact with one another. Positive sodium cells then flood into the cell. An action potential will discharge if the cell exceeds a predetermined threshold, transmitting the electrical signal to the axon.

Voltage-gated sodium ion channels, also referred to as Na(V) channels, open to initiate an action potential. As a result, sodium ions enter the system, travelling along the gradient of their concentration, and the cellular membranes starts to depolarize. More Na(V) channels are opened as a result, further depolarizing the membrane.

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The given problem states that a diverging lens has a focal length of –10 cm and a 3 cm object is placed 25 cm from the lens.

We are required to find an accurate description of the image. There are two types of lenses, converging and diverging lenses. The diverging lens always produces a virtual, upright and reduced image for an object placed at any distance.

Thus, the pair of terms that most accurately describes the image produced by a diverging lens is: Virtual, Upright.

The answer is a. virtual, upright.

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Answer:

A

Explanation:

Hope this helps and have a wonderful day!!!

Answer:

A. electron

Explanation:

The electron is the only negatively charged particle in the answers. The proton is positive. The nutron has a neutral charge. The nucleus isn't really a particle. It's a group of protons and neutrons.

A series circuit consists of a 1.02 V source of emf, a 2.00 F capacitor, a 1000 ohm resistor, and a switch. It takes approximately 1386 seconds for the current in the series circuit to reach one-half its maximum value after the switch is closed.

To determine the time it takes for the current in a series circuit to reach one-half its maximum value, we need to consider the time constant of the circuit. The time constant is determined by the product of the resistance and the capacitance.

In this case, the circuit consists of a 1.02 V source of emf, a 2.00 F capacitor, and a 1000 ohm resistor. The time constant (τ) can be calculated using the formula:

τ = R ×C

τ = 1000 ohm ×2.00 F

τ = 2000 seconds

The time it takes for the current to reach one-half its maximum value in an RC circuit is given by approximately 0.693 times the time constant (τ).

t = 0.693 × τ

t = 0.693 × 2000 seconds

t ≈ 1386 seconds

Therefore, it takes approximately 1386 seconds for the current in the series circuit to reach one-half its maximum value after the switch is closed.

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Answer:

Explanation:

24 i think

Answer:

B. 24

Explanation:

There are 24 atoms in one molecule of C6 H12 06. This chemical compound is made up of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen. We find the number of atoms by adding these numbers up. We than get:

6 + 12 + 6 = 12 + 12 = 24

Therefore, there are 24 atoms in the following chemical formula.

they are not always in same direction

The moon pulls each kilogram with water in the Kamali River with a force of 5.19 x 10-5 N, or strength or energy used or brought to bear.

The term "force" has a clear definition in science. It is quite acceptable to refer to a force of this level as a push or perhaps a pull. An object does not "have in it" or "contain" a force. One thing is subject to a force from another. There is no distinction between living and non-living things in the concept of a force.

r3 = 105 kilometers x 10 m 3 x 108m

1 kmF=G.M.mp2

6.67 x 10-11 N kg 2. m2 X 7 × 1022 kg X 1 kg\s(3 x 108 m) (3 x 108 m) 2\s5.19 x 10-5 N

A push that has the potential to accelerate something is called a force. A physical push could be used to move a large furniture item around a room. It might be less concrete, like depressing a gas pedal in such a car. J

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The rock will take 3.61 seconds to hit the surface of the water.

The equations of motion can be described as the equation that described the relationship between the velocity (v & u), acceleration, time, and displacement (S) of a moving body.

The mathematical  expression of the equations of motion:

\(v = u +at\\S = ut +(1/2)at^2\\v^2-u^2 = 2aS\)

Given, the height of the bridge from the ground, h = 64.0 m

The gravitational acceleration on the rock, g = 9.8 m/s²

The initial speed of the rock, u = 0

From the 2nd equation of motion, calculate the time rock takes to hit the surface of the water:

h = ut + (1/2)gt²

64.0 = 0×t + (1/2)× 9.8×t²

t² = 64 ×2/9.8

t = 3.61 s

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The court's dimensions = wide = 27 feet,      length =  27 + 7 = 34 feet

Dimensions in arithmetic are the measure of the scale or distance of an item or location or space in one route. In easier terms, it is the measurement of the length, width, and top of whatever.

The primary measurement, as already mentioned, is that which gives it length. an excellent description of a one-dimensional item is a instantly line, which exists handiest in terms of duration and has no different discernible traits.

Length of the rectangular tennis = 6 feet + 2x

Let, wide of the court = 2x

Perimeter = 228 feet

228 = 2( 6+2x + 2x)

      = 12 +4x + 4x

       = 12 +8x

x = (228 - 12)/8

x = 27 feet

Hence wide = 27 feet

       length =  27 + 7 = 34 feet

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While Jupiter is larger than Earth, it is still much smaller than the sun or a comet. Therefore, the correct answer is (2) a comet.  

Based on our current knowledge, Jupiter's composition is most like that of an asteroid. Jupiter is a gas giant, primarily composed of hydrogen and helium, with trace amounts of other elements such as methane, ammonia, and water. Jupiter is a gas giant, which means that it is composed mainly of gas rather than solid matter. The gas giants in our solar system, including Jupiter, are believed to have formed from a swirling disk of gas and dust that surrounded the sun in the early days of the solar system.

The composition of Jupiter is primarily hydrogen and helium, with trace amounts of other elements such as methane, ammonia, and water. These elements combine to form the gas giant's atmosphere, which is made up of layers of different gases that extend from the planet's rocky core to its outer atmosphere. Therefore, the correct answer is (2) a comet.  

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Correct Question:

overall, jupiter's composition is most like that of group of answer choices

1. earth.

2. a comet.

3. the sun.

4. an asteroid.

The kinetic energy of the ball is 100j

100j of work would be required to stop the ball.

Kinetic energy is a form of energy that an particle has by reason of it's motion.if we accelarate a object we must apply a force.

Here the mass (m) is 0.5 kg

It's velocity (v) is 20 m/s

The kinectic energy is

KE = 1/2 mv^2 = 1/2(0.5)20.20= 100 J

Again the workdone to stop it is calculated by work energy theorem

Change in KE = workdone

Or 100 J - 0 J or 100 J needed to stop the ball.

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Answer:

The initial vertical velocity is the vertical component of the initial velocity: v0y=v0sinθ0=(30.0m/s)sin45°=21.2m/s.

Explanation:

Time taken by arrow to reach height point is 2.2 seconds

Given:

Initial velocity of arrow = 22 m/s

Find:

Time taken by arrow to reach height point

Computation:

We know that, highest point stands when final velocity is 0 m/s

So,

Final velocity = 0 m/s

Gravitational acceleration = 10 m/s²

So,

v = u + at

0 = 22 + 10(t)

10t = -22

t = -22 / 10

t = -2.2 second

Time taken = 2.2 seconds

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Answer: Light ray X will eventually hit the borader

Explanation:

Answer:7.5j

Explanation:

P=w/s