A car makes a lab around a 50 m loop in 9 seconds. What his their velocity?

The pressure difference in the 6 cm supply line is 2.31 * 10⁴Pa, and the rate at which water exits the valve is 2.65 m/s.

The ability of an object to move quickly or slowly is a very fundamental idea in motion. Distance is exactly proportional to velocity if time is constant, hence speed is merely distance divided by time. You will be asked to perform calculations for one of three supplied variables in incidents affecting speed, distance, and time.

The primary pipe's R1 radius is 3.0 cm.

The faucet's radius is R2 = 1.0 cm.

The faucet's height is h = 2.0 cm.

(a) The flow rate

[tex]$$\mathrm{R}=\mathrm{Av}=\frac{25 \mathrm{~L}}{30}=0.833 \mathrm{~L} / \mathrm{s}=833 \mathrm{~cm}^3 / \mathrm{s}$$[/tex]

The area of faucet [tex]$\mathrm{A}_2=\pi r_2{ }^2$[/tex]

[tex]$$=\pi(1 \mathrm{~cm})^2=\pi \mathrm{cm}^2$$[/tex]

then the speed

[tex]$$\begin{aligned}\mathrm{v}=\frac{\mathrm{R}}{\mathrm{A}} & =\frac{833 \mathrm{~cm}^2 / \mathrm{s}}{\pi \mathrm{cm}^2}=265 \mathrm{~cm} / \mathrm{s} \\& =2.65 \mathrm{~m} / \mathrm{s}\end{aligned}$$[/tex]

b) from continuity equation

[tex]$$\begin{aligned}A_1 v_1 & =A_2 v_2 \\\text { then } \mathrm{v}_1=\frac{A_2 v_2}{A_1} & =\frac{(\pi)}{\pi(3 \mathrm{~cm})^2}(265) \\& =0.295 \mathrm{~m} / \mathrm{s}\end{aligned}$$[/tex]

From Bernoulli's theorem

[tex]$$\begin{aligned}\mathrm{P}_1 & +\frac{1}{2} \rho v_1^2+\rho g y_1=\mathrm{P}_2+\frac{1}{2} \rho v_2^2+\rho g y_2 \\P_1-P_2 & =\frac{1}{2} \rho\left(v_2^2-v_1^2\right)+\rho g\left(y_2-y_1\right) \\& =\frac{1}{2}\left(10^3\right)\left[(2.65)^2-(0.295)^2\right]+\left(10^3\right)(9.8)(2) \\& =2.31 \times 10^4 \mathrm{~Pa}\end{aligned}$$[/tex]

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Strength the neural impulses flowing up an auditory nerve in relationship to the amount of sound waves who reach my ear in a particular amount of time.

A blast wave seems to be the pattern of disruption brought on by the motion of energy moving through a medium as it spreads from the source of sound (such as air, water, and any other fluid or solid matter).

Sound is a type of energy produced by vibrations. These vibrations result in sound waves, which move through various media such as wood, sea, and the atmosphere. When an object is in motion, the particles of the medium also change position. This motion, which lasts on until particle runs out of power, is known as sound waves.

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With the knowledge of kinematic and dynamics, the mass of the crate is 366.7 kg

Force can simply be defined as a pull or push. It is the product of mass and acceleration. It is a vector quantity.

Given that two horizontal force are exerted on a large crate. the first force in 1200N to the right. the second force is 650 N to the left. the crate is initially at rest. five seconds later, its velocity is 7.5m/s to the right.

Let us first list all the parameters involved

The net Force F = ma

We can find acceleration with formula

v = u + at

7.5 = 0 + 5a

5a = 7.5

a = 7.5/5

a = 1.5 m/s²

Then, F = ma

550 = 1.5m

m = 550/1.5

m = 366.7 kg

Therefore, the mass of the crate is 366.7 kg

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If you wanted to see stars hidden behind a molecular cloud, you would probably look at light with an infrared wavelength.

The duration, which will also apply to troughs, seems to be the distance between the two wave crests. The unit of frequency by cycles per second (Hz), which is the quantity of vibrations that cross a specific area in a second (Hertz).

The connection between wavelength and frequency is inversely proportional. The wavelength of a wave with highest frequency is the shortest. Double the wavelength corresponds to twice the frequency. The wavelengths ratio is therefore the inverse of an applied frequency.

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The complete question is-

If you wanted to observe stars behind a molecular cloud, in what wavelength of light would you most likely observe?

A. visible

B. gamma-ray

C. X-ray

D. infrared

E. ultraviolet

With the use of echo formula, the length of the barn is 24.75 m

An echo is a sound heard after the reflection of sound waves from a plane surface. It is simply the reflection of sound waves.

Suppose you hear an echo 0.15 seconds after banging.

Then,

V = 2L/T

330 = 2L/0.15

2L = 330 × 0.15

2L = 49.5

L = 49.5/2

L = 24.75 m

Therefore, the barn is 24.75 m long.

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Answer:he would most likely hit an element with which of the following characteristics: W) a naturally radioactive element X) a solid at room temperature Y) a gas at room temperature Z) a liquid at room temperature ANSWER: X) A SOLID AT ROOM TEMPERATURE

Explanation:

The pilot is correct since the planet's gravitational force will drag the spaceship toward the planet on its own.

Gravity, also known as gravitational force, pulls things with mass toward one other. Gravitational pull from Earth is a topic that we frequently consider. This force is responsible for keeping the body on the ground. Any item with mass, on the other hand, exerts a gravitational attraction on all other things with mass.

The gravitational force is called attractive because it constantly strives to bring masses together rather than pushing them apart. It is obvious that the gravitational force directly relates to the masses of the two interacting objects; larger, more massive objects will pull apart with a stronger gravitational force.

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Electronic transitions that end up in the state with quantum number n = 2 are what the Balmer series for the hydrogen atom refers to. The longest wavelength is 656.3x10-9 m, and the energy is  3.03X10^33J

Given quantum number (n) = 2

This will be transition 3-2 photon energy (E)= hc/λ since we must take into account the photon with the longest wavelength that completes the electron transition in the state with the quantum number n=2

photon energy (E)= hc/λ

(a) Then the energy (El) of longest wavelength= 6.63×10 −34 x 3x10^8/656.3x10-9

E = 3.03x10^33J = 1.89eV

(b) We know that 1/λl = R(1/n1^2 - 1/n2^2) where R =  Rydberg constant

1/λl = 1.097×107m−1× (1/2^2 - 1/3^2)= 656.3x10-9m

(c) From given diagram we say thee shortest transition is from level 6 to level 2

n1 = 2 and n2 = 6

Its photon energy (Es) =  6.63×10 −34 x 3x10^8/411x10-9 = 3.023eV

(d) Wavelength of shortest transition series 1/λ = 1.097×107x(1/2^2 -1/6^2) =  411nm

(e)Shortest wavelength is emitted in Balmer series if the transition of electron takes place from n2​=∞ to n1​=2.

Shortest wavelength in Balmer series 1/λ = R(1/2^2 -1/∞)=364.6nm

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Plate tectonics, comet strikes, enormous floods, including wind-blown sediments hide or deteriorate impact craters, whereas the following do not: radiation degradation and solar heating.

An object that circles a planet or another object that doesn't belong to a star is called a moon. Moons can also orbit exoplanets, large comets, and other things in addition to planets. Moons are also referred to as natural satellites since they orbit other objects, which is another name for a satellite.

Your appearance shows the roiling cauldron of emotions, worries, longings, and obsessions that lies beneath your sun sign-based identity. It emphasizes the real self, along with its motivations and issues.

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Because Newton as Pressure = Thrust/Area, the answer will be 7.5.

The rotating equivalent of Newton's first law is this. When each child's weight exerts an equal amount of torque about the pivot in opposing directions, two kids can balance on a seesaw (clockwise and counter clockwise).

The idea of the seesaw You are probably aware that any two people, regardless of their weights, can balance each other while seated on opposite sides of a seesaw. All that is required is for each individual to contribute an equal moment, which is determined by multiplying the person's weight by the distance from the fulcrum.

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Answer:

potential

Explanation:

Answer:

Gravitational potential energy

Explanation:

GPE = MGH

M - MASS

G - GRAVITATIONAL

H - HEIGHT

Therefore, if cars 17.0 m away appear 0.37 their normal size, the mirror's radius of curvature is -6.29.

In differential geometry, the radius of curvature, R, is the reciprocal of the curvature. Its radius is the same as the radius of the circular path that, at that specific moment, most closely matches the curve. The diameter of the a circle that, individually and collectively, fits a normal section the best seems to be the radius of curvature of surfaces. The curvature's length and radius is denoted by R, and its derivative by K, where R=1/K.

The diameter of a hollow sphere in which the spherical mirror was housed determines its radius of curvature. The radius of curvature is the distance between the pole and center of a spherical mirror.

Radius = Diameter/ 2 applies when the diameter is known. Radius = Circumference/2 can be calculated after the circumference is known. The radius is calculated using the formula Radius = ⎷(Area of the circle/π) when the area is known.

For the mirror, we can solve two equations:

1/f=1/d_0 -1/d_i

M= -d_i/d_0

Index I stands for a picture, while index 0 stands for the object.

Magnification in this instance is 0.37:

0.37= -d_i/d_0

-0.37d0 = di d0 =17.0m

di= -0.37 × 17.0

di = 6.29m

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A mass m at the end of a spring oscillates with a frequency of 0.71 Hz . When an additional 780 g mass is added to m, the frequency is 0.64 Hz, thus the value of mass is 3.376 kg

In terms of physics, frequency refers to the quantity of waves that pass through a given point in a unit of time as well as the number of cycles or vibrations that a body in periodic motion experiences over the course of a single unit of time.

Given that,

Frequency = 0.71 Hz

Mass = 780 g

After added to m, frequency becomes = 0.64 Hz.

Let the spring constant is k

k=m × w²

from the given info.

m × (0.71)² = (m+0.78) × (0.64)²

m ×[(0.71)²- (0.64)²] = 0.78 × (0.64)²

m = 0.78 × (0.64)² /[(0.71)²- (0.64)²]  

m = 0.319 / 0.0945

m = 3.376 kg

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Net force , gravity, falling object, air resistance, force . this is the concept map obtained from the above given terms.

An item often experiences some air resistance as it descends through the air. The leading surface of the item collides with air molecules, creating air resistance. Several variables affect how much air resistance the item really experiences. To keep things straightforward, it may be noted that the object's speed and cross-sectional area are the two most frequent variables that directly affect the amount of air resistance. The quantity of air resistance rises with increasing speed. Greater air resistance is brought on by larger cross-sectional areas and gravity.

What causes an item to finally attain a terminal velocity when it encounters air resistance?

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The statement will best describe the period of mass on spring, Start at A, go through B, C, and D, turn at E, go back through D, C, and B to A

define mass ?

The density and kind of atoms in any specific thing are referred to as the object's mass in science. Although mass can also be measured in pounds, the kilogramme (kg) is the SI unit of mass (lb).

Think of a pillowcase stuffed with feathers and one packed with bricks to rapidly grasp the notion of mass. Which one is heavier? The bricks have a larger mass because their atoms are heavier and denser. Because of this, although though both pillowcases are the same size and level of fill, one has a significantly higher mass than the other.

according to the hooks law statement will best describe the period of mass on spring, Start at A, go through B, C, and D, turn at E, go back through D, C, and B to A will describes the image.

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The current in the circuit will be 0.0167 Amperes when a light bulb is providing resistance and the batteries with 1.5 voltage.

A stream of charged particles, such as electrons or ions, travelling through an electrical conductor or a vacuum is known as an electric current. The net rate of electric charge flowing through a surface or into a control volume is how it is measured.

To calculate current the formula used is V= IR

                                                                 1.5/90 = I

                                                                 0.016 A = I

Electronic components such as resistors, transistors, capacitors, inductors, and diodes are connected via conductive wires or traces that allow an electric current to pass between them.

Hence, the current in the circuit will be 0.0167 Amperes when a light bulb is providing resistance and the batteries with 1.5 voltage.

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The pressure in the upper portion of the pipe is calculated by applying Bernoulli's equation,

P₁ + ¹/₂ρv₁² + ρgh₁ = P₂ + ¹/₂ρv₂² + ρgh₂

given is

p1 =247kPa

v1=2.09 m/s

h1= 0

v2 =3.41 m/s

h2 = 10.68 m

p=817 [tex]m^{3[/tex]

p2 = ?

Solving for this we can get the required value.

Bernoulli's equation formula shows the relation between pressure, kinetic energy, and gravitational potential energy of a fluid in a container. We have the formula for Bernoulli's principle as follows: p + 1 2 ρ v 2 + ρ g h = A constant.

Bernoulli's principle is based on the principle of conservation of energy. According to it, "in a steady flow, the sum of all forms of energy in a fluid is the same at all points that are free of viscous forces". This required the sum of kinetic energy, potential energy and internal energy to be constant.

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Lateral rotation is an anatomical term of motion used to describe rotation along the long axis of a joint. In lateral rotation, this movement is away from the midline of the body and occurs in the transverse plane.

On the other hand, medial rotation is a rotational movement towards the midline. It is sometimes referred to as internal rotation.

According to this question, twisting one's lower limb at the hip while standing, so that the toes point off to the side is an example of lateral rotation while doing the above but in such a way that it points towards the other foot is an example of medial rotation.

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There have been 903.73 moles of air that are expelled from the residence each day.

Force is the term used to describe the physical violence applied to something. A perpendicular force is applied to the surface of the objects for each unit of area. The basic formula for pressures is F/A. (Force per unit area). Project phases are a pressure unit (Pa). Different types of pressure include absolute, atmospheric, differential, and gauge pressures.

Since the pressures are steady:

V1/T1 = V2/T2

In the evening, V1 = 900 m^3, and T1 = 288K.  

In the daytime, T2 = 298K, and V2 =?

V2 = V1*T2/T1 = 900*295/288 = 921.875 m^3

921.875 - 900 = 21.875 m^3

who venture outside during the day

V2/T2 = Vs/Ts

Vs = V2*Ts/T2 = 21.875*273/295 = 20.24 m^3

22.24 liters per mole, and 1000 liters per m^3, so

N = 20.24*1000/22.4

N = 903.73 moles.

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Answer:

[tex]47\; {\rm cm\cdot s^{-1}}[/tex] to the east.

Explanation:

When an object of mass [tex]m[/tex] travels at a velocity of [tex]v[/tex], the momentum [tex]p[/tex] of that object will be [tex]p = m\, v[/tex].

Let [tex]m[/tex] denote the mass of one ball.

Before the collision:

Hence, the total momentum before the collision was:

[tex]\begin{aligned} & p(\text{cue, before}) + p(\text{number, before}) \\ &= m\, v(\text{cue, before}) + m\, v(\text{number, before})\end{aligned}[/tex].

Likewise, the total momentum right after the collision would be:

[tex]\begin{aligned} & p(\text{cue, after}) + p(\text{number, after}) \\ &= m\, v(\text{cue,after}) + m\, v(\text{number, after})\end{aligned}[/tex].

Momentum is supposed to be conserved during the collision. In other words, total momentum should be the same immediately before and after the collision. Hence:

[tex]\begin{aligned} & p(\text{cue, before}) + p(\text{number, before}) \\ &= p(\text{cue, after}) + p(\text{number, after})\end{aligned}[/tex].

[tex]\begin{aligned} & m\, v(\text{cue, before}) + m\, v(\text{number, before}) \\ &= m\, v(\text{cue, after}) + m\, v(\text{number, after})\end{aligned}[/tex].

Assume that positive velocities denote motion to the east.

In this question, [tex]v(\text{cue, before})[/tex], [tex]v(\text{number, before})[/tex], and [tex]v(\text{number, after})[/tex] are all given. Rearrange this equation to find [tex]v(\text{cue, after})[/tex]:

[tex]\begin{aligned}& m \, v(\text{cue, after}) \\ &= m\, v(\text{cue, before}) \\ &\quad\quad + m\, v(\text{number, before}) \\ &\quad\quad - m\, v(\text{number, after}) \end{aligned}[/tex].

[tex]\begin{aligned}& v(\text{cue, after}) \\ &= v(\text{cue, before}) \\ &\quad\quad + v(\text{number, before}) \\ &\quad\quad - v(\text{number, after}) \\ &= 91\; {\rm cm \cdot s^{-1}} + 18\; {\rm cm\cdot s^{-1}} - 62\; {\rm cm\cdot s^{-1}} \\ &= 47\; {\rm m\cdot s^{-1}}\end{aligned}[/tex].

Since the result is greater than zero, the direction of motion of the cue ball after the collision will also be to the east.

Convex mirror always produces virtual images is the correct option.

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Answer:

I would say B. would be the answer.

Explanation:

Sorry if I'm wrong

One of the things that are NOT a typical consequence that is associated with open pit mines is the release of high concentrations of ozone into the local environment, causing long-term respiratory harm to individuals and the environment.

The open-pit mine is a surface mining technique used to extract rocks or minerals from the earth using an open-air pit. This technique is used when ore or rock deposits are found near the surface, which makes digging a tunnel unnecessary.

The main consequence of open-pit mine that concerns most people is that it generates a large amount of dust that contains heavy metals to the environment, as well as creating deposits of toxic waste ponds. Ozone is not considered a heavy metal.

Attached below is an image of the Sunrise Dam Gold Mine open pit mine in Australia.

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TLC is a frequently used technique in organic chemistry labs because it can provide immediate and important information about the purity of a sample and whether or not a reaction is taking place. Using low polarity solvents, a TLC plate can be finished in less than five minutes.

Problems with the separation can result from a location that is overly large or dense. 6. If you are using multiple samples on the same plate, be sure their spots do not overlap. In order to avoid colliding during the separation, adjacent dots must be spaced by at least 0.5 cm.

Since the ratio between the distances stays constant, the Rf value won't change if the solvent is only permitted to move halfway up the plate. After marking the front line of the solvent on the TLC plate and removing it from the developing chamber, let the plate air dry. When a substance is placed to a TLC plate in excess, the dot may streak over the plate or touch nearby samples that are being evaluated.

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Having said that,

Gravitational Constant: g=GMR2

G=6.621011Nm2kg2 R=Radius Earth's M stands for Earth's mass.

The spacecraft is currently far away. R′=2R

As a result, g will be as follows: g′=GMR′2 R′=2R g′=GM4R2 g′=g4 g′=9.84 g′=2.45ms2

At any point on its surface, a non-rotating perfect sphere with equal mass density or one whose density varies exclusively with distance from the centre (spherical symmetry) will produce a constant gravitational field. The Earth is an oblate spheroid because it rotates and is not spherically symmetric; rather, it is slightly flatter towards the poles and bulges at the Equator. As a result, the magnitude of gravity varies slightly throughout the surface.

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Explanation: It is not clear from the information given what type of goods the water bottles and hydration belts are. The only information provided is that they are sold at a running store, which suggests that they may be related to running or fitness. However, without more information it is impossible to determine their specific type or classification.

The classification of the phase changes include the following:

A gas and a liquid= Condensation and evaporation.

A gas and a solid= sublimation and deposition

A liquid and a solid= freezing.

Phase change is defined as the ability of matter to change from one form to another ( solid, liquid or gas) due to changes in its surrounding environment.

The classification of 0hase changes include the following:

Therefore, in the classification of pase change of matter, A gas and a liquid= Condensation and evaporation, a gas and a solid= sublimation and deposition, a liquid and a solid= freezing.

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