what definition of a compresssion is correct?

A. region of high altitude in a medium caused by a passing wave
B. region of high pressure in a medium caused by a passing wave.
C. region of low pressure in a medium caused by a passing wave.
D. region of zero pressure in a medium caused by a passing wave

The portion of the object submerged in water is determined as 0.25.

The fraction of the object submerged in water is calculated as follows;

S.G =  (density of object) / (density of water)

where;

S.G = (250 kgm⁻³) / (1000 kgm⁻³)

S.G = 0.25 = ¹/₄

Thus, the portion of the object submerged in water is determined as 0.25.

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The largest axial force that can be applied to the w8 x 67 wide-flange A-36 steel column without causing it to buckle is 179 kips.

To determine the largest axial force that can be applied to the w8 x 67 wide-flange A-36 steel column without causing it to buckle, we need to use Euler's formula. Euler's formula relates the critical buckling load (Pcr) to the column's effective length (L) and its moment of inertia (I). The formula is Pcr = (pi^2 * E * I) / L^2, where E is the modulus of elasticity.

First, we need to find the effective length of the column. Since the column is fixed at its base and pinned at its top, its effective length is equal to its actual length. Let's assume that the actual length of the column is 10 feet or 120 inches.

Next, we need to find the moment of inertia (I) of the column. For a W8 x 67 section, the moment of inertia about the strong axis (x-x axis) is 23.5 in^4.

Finally, we need to find the modulus of elasticity (E) of A-36 steel, which is approximately 29,000 ksi.

Plugging in the values in Euler's formula, we get:
Pcr = (pi^2 * 29,000 ksi * 23.5 in^4) / (120 in)^2 = 179 kips

Therefore, the largest axial force that can be applied to the w8 x 67 wide-flange A-36 steel column without causing it to buckle is 179 kips.

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The cost of staffing work schedules is a topic covered by the economics subfield of ergonomics. An operations chart, often known as a right-hand/left-hand chart, highlights unnecessary movement and downtime.

Employees' working conditions may impact their quality of life, but it has little bearing on how well they perform or how safe they are.

Extent flexibility is the type of flexibility required when a profession necessitates extremely wide motions.

In jobs dispersed over longer time periods, extent flexibility is essential whereas dynamic flexibility is needed for shorter time periods.

Simple movements, using movement as the main method in physical education.

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Answer: m = 0.035kg = 35g

Explanation: Momentum p=0.140kgm/s

Velocity v=4m/s

Mass m=?

Formula-

Momentum depends on the mass of the object in motion and its velocity.

The equation for momentum is

p = mv

m = p/v

m = 0.140/4

m = 0.035kg

m = 35g

Hence, in the toy dart gun mass of the dart is 0.035kg.

Answer:

10.8s

Explanation:

Given parameters:

Force on the car  = 3250N

Distance  = 35m

Power  = 11375W

Unknown:

Time taken = ?

Solution:

To solve this problem;

 Power is the rate at which work is done

         Power = \(\frac{work done }{time}\)  

  Work done  = force x distance  = 3250 x 35  = 123200J

Now;

          11375  = \(\frac{123200}{t}\)  

           11375t  = 123200  

                   t  = 10.8s

Answer:

Mechanical Waves

Explanation:

I took the practice

(1) The angular velocity at position 1 of a uniform rod rotating freely around an axis can be determined.

(2) The velocity of the center of mass at position 2.

(1) To determine the angular velocity at position 1, we need to consider the conservation of angular momentum. Since the rod is rotating freely, there are no external torques acting on it.

The initial angular momentum is zero, and at position 1, the angular momentum is given by L = Iω, where I is the moment of inertia of the rod and ω is the angular velocity. By substituting the values of mass and length of the rod into the formula for moment of inertia, we can solve for ω.

(2) To calculate the velocity of the center of mass at position 2, relative to position 1 and at an angle theta, we can use the concept of angular velocity and linear velocity. The linear velocity of the center of mass is given by v = ωr, where ω is the angular velocity and r is the distance between the center of mass and the axis of rotation. By considering the given angle theta and the length of the rod, we can determine the distance r.

Substituting the value of ω calculated in part (1) into the formula, we can find the velocity of the center of mass at position 2, relative to position 1 and at angle theta.

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a. The angular speed of the rotating nylon line is 314.16 radians per minute.

b. The linear speed of a point on the tip of the line is approximately 2617 inches per minute.

The angular speed of the rotating nylon line can be determined by converting the rotational speed from revolutions per minute (rpm) to radians per minute.

Since one revolution is equal to 2π radians, the angular speed is calculated as 3000 rpm multiplied by 2π, resulting in approximately 314.16 radians per minute.

To find the linear speed of a point on the tip of the line, we need to multiply the angular speed by the radius of the circular path. Given that the line is 5 inches long, the radius is half of that, or 2.5 inches.

The linear speed can be obtained by multiplying the angular speed of 314.16 radians per minute by the radius of 2.5 inches, resulting in approximately 785.4 inches per minute.

Rounding to the nearest inch per minute, the linear speed of a point on the tip of the line is approximately 2617 inches per minute.

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A key difference between the protoplanets that formed in the outer solar system and those that formed in the inner solar system was that they were composed of different types of material.

Protoplanets are early-stage planets that are still forming, as well as the residual planetesimals that made them. They are believed to have formed in the early solar system's planetesimal disk, which was composed of gas and dust.

In the inner solar system, rocky fragments and dust grains with higher melting points accumulated to produce rocky protoplanets, whereas in the outer solar system, where temperatures were colder, volatile materials like water and methane condensed and formed the cores of the protoplanets instead of rocky material.

These protoplanets then drew more material from the surrounding planetesimal disk and eventually formed the planets we see today.

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The transformer operates based on the principle of electromagnetic induction this equation shows that the primary coil has twenty-two times as many turns as the secondary coil.

Let's denote the number of turns in the primary coil as Np and the number of turns in the secondary coil as Ns.

The transformer operates based on the principle of electromagnetic induction, which states that the ratio of the number of turns in the primary coil to the number of turns in the secondary coil is equal to the ratio of the input voltage to the output voltage. Mathematically, this can be expressed as:

Np / Ns = Vin / Vout

In this case, the input voltage (Vin) is 220 V and the output voltage (Vout) is 10 V. Substituting these values into the equation, we get:

Np / Ns = 220 / 10

Simplifying further:

Np / Ns = 22

This equation shows that the primary coil has 22 times as many turns as the secondary coil.

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Answer:

81

Explanation:

The problem here is to use the rules for significant figures in the multiplication below.

       67.6 x 1.2:

 This product will yield an answer that will produce the least number of significant figures.

   67.6 has 3 significant figures; 6, 7 and 6

    1.2 has 2 significant figures; 1 and 2

The product must give us an answer of two significant figures:

        67.6 x 1.2  = 81.12 to 2significant figures gives 81

The solution to this problem is 81

Answer:

The reason you feel weightless is because there is no force pushing against you, since you are not in contact with anything. Gravity is pulling equally on all the particles in your body. This creates a sensation where no forces are acting on you and you feel weightless.

A) Minimum recommended spiral parameter: 150.03m.

b) Distance P: 150.03m.

c) Distance Q: 4.122m.

d) Angle Φs: 16°30'14.0".

e) Distance Tc: 150.03m.

a) Calculation for the minimum recommended spiral parameter:

Design radius (R) = 300 m

Maximum superelevation (e_max) = 0.06 m/m

Spiral Parameter (A) = (R + e_max) / 2

A = (300 m + 0.06 m/m) / 2

A ≈ 150.03 m

b) Calculation for the distance P:

Distance P is equal to the length of the first spiral curve, which is the same as the minimum recommended spiral parameter.

P ≈ 150.03 m

c) Calculation for the distance Q:

Distance Q represents the length of the circular curve. It is given by the formula:

Q = (Deflection angle at Point of Intersection) / (Degree of Curve, D)

Deflection angle at Point of Intersection = 16°30'14.0"

Converting the angle to decimal degrees:

16° + (30'/60) + (14.0"/3600) = 16.504°

Q = 16.504° / (360° / D)

Q ≈ D / 21.814

Since the RAU80 has 4 lanes, the degree of curve (D) is 360° / 4 = 90°.

Q ≈ 90° / 21.814

Q ≈ 4.122 m

d) Calculation for the angle Φs:

The angle Φs is the deflection angle at the Point of Intersection.

Φs = 16°30'14.0"

e) Calculation for the distance Tc:

Distance Tc is equal to the length of the second spiral curve, which is the same as the minimum recommended spiral parameter.

Tc ≈ 150.03 m

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Answer: Slope = - 1000.

Explanation:

The line of best fit of the graph will be linear.

The general linear equation can be expressed as;

Y = MX + C

Where the Y variable represents the volume in the experiment as dependent variable and the X represent the pressure as independent variable.

The equation can be rewritten as:

V = MP + C

Where C is the intercept.

Given that

V = 200, 100, 50, 25, 12.5 and

Pressure P = 0.1000, 0.2000, 0.4000, 0.8000, 1.6000

The slope M can be calculated by using the formula

M = (V2 - V1)/ (P2 - P1)

Where V1 = 200, V2 = 100, P1 = 0.1, P2 = 0.2

Substitute all the parameters into the formula

M =( 100 - 200)/ ( 0.2 - 0.1 )

M = -100/0.1

Slope M = - 1000

The word "water cycle" refers to the ongoing process that transfers water from the earth to a atmosphere and back.

The hydrologic cycle, another name for the water cycle, describes where and how water is kept on Earth.

Thus, the term "water cycle" refers to the ongoing process that transfers water from the earth to a atmosphere and back.

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Answer:

3.485e+6 inches. hope this helps

Answer:

What I got was a big number but it got around 3.485e+6

Explanation:

qs is 37 - y cm.

Let the two parallel sides of the parallelogram PQRS be PQ and SR respectively.

Also, let the two adjacent sides of the parallelogram be PQ and QS. Let the length of PQ be x cm and that of QS be y cm.

Thus, the length of SR would also be x cm.

Therefore, the perimeter of the parallelogram is 2(x + y) cm = 74 cm. Hence,x + y = 37 cm

Again, we know that the opposite sides of the parallelogram are equal. So, QS = PQ = x cm. QS = x = 37 - y

Therefore, qs is 37 - y cm.

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Answer:

This is false.

Explanation:

While it is true that the entropy of fusion is always negative for a pure substance, this is not the case for mixtures. For example, the entropy of fusion of water is positive when it is mixed with a non-polar solvent such as hexane.

All entropies of fusion are negative. This is false statement.

The microscopic specifics of a system are not taken into account from a thermodynamics perspective on entropy. The behaviour of a system is instead described in terms of thermodynamic parameters as temperature, pressure, entropy, and heat capacity using the concept of entropy. This thermodynamic explanation took the systems' equilibrium condition into account.

The thermodynamic qualities that were defined in terms of the statistics of a system's molecular motions were the focus of the statistical definition that was later established. A measurement of molecular disorder is entropy.

Entropy is increased when a solid turns into a liquid. As phase changes result in more molecular freedom of movement, entropy rises.

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Answer:

0_8.0

8.0m/s

Explanation:

8.0m/s is the velocity of an object .

Interference is the phenomenon where two or more waves interact and cause either a reinforcement or cancellation of the resultant wave. It is categorized into two types: constructive interference and destructive interference.

Constructive Interference: It occurs when two waves that are in phase interact, resulting in an increased amplitude. When the crests of one wave align with the crests of another wave and the troughs of one wave align with the troughs of another wave, the wave's amplitude is amplified. The resultant wave has an amplitude that is equal to the sum of the amplitudes of the two waves.

Destructive Interference: It occurs when two waves that are out of phase interact, resulting in a decreased amplitude. When the crests of one wave align with the troughs of another wave, the wave's amplitude is reduced. As a result, the amplitude of the resultant wave is equal to the difference between the amplitudes of the two waves.  

Therefore, the main difference between constructive interference and destructive interference is that constructive interference occurs when two waves that are in phase interact, resulting in an increased amplitude, while destructive interference occurs when two waves that are out of phase interact, resulting in a decreased amplitude.

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Answer:

The first one is Earths Tilt on its axis

Answer:

Below

Explanation:

Acceleration =  Δ v / Δ t   =  -13.6 m/s   /  2.5 s =  - 5.4 m/s^2

   ( the negative sign shows this to be a deceleration)

Answer:

\(\fbox {3.6kW}\)

Explanation:

Formula used :

\(\boxed {P = F \times v} \leftarrow \rightarrow \boxed {P = \frac{F \times S}{t}}\)

Given :

⇒ F = 6 × 10³ N

⇒ S = 18 m

⇒ t = 30 s

Solving :

⇒ P = 6 × 10³ × 18 / 30

⇒ P = 2 × 100 × 18

⇒ P = 3600 W

⇒ P = 3.6kW

The given statement is True.

One useful way to model magnetic field strength is through the concept of magnetic flux. Magnetic flux is a measure of the number of magnetic field lines passing through a given area.

It is defined as the product of the magnetic field strength, the area, and the cosine of the angle between the magnetic field and the area vector. Mathematically, it can be expressed as:

Φ = B * A * cos(θ)

where Φ is the magnetic flux, B is the magnetic field strength, A is the area, and θ is the angle between the magnetic field and the area vector.

Magnetic flux is an important concept in electromagnetism and is used in many applications, including magnetic sensors, electric motors, and generators.

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Answer:

Sample Response: They are used to transmit data, TV signals, and telephone signals. They are also used in ovens and radar.

Explanation:

The Uniform Circular Motion Interactive is a tool that allows users to explore the physics of uniform circular motion. The user can change the radius of the circle, the speed of the object, and the mass of the object.

When an object moves in a circle at a constant speed, it is said to be in uniform circular motion. The velocity of the object is constantly changing direction, even though the speed is constant. This means that the object is accelerating.

The acceleration of an object in uniform circular motion is directed towards the center of the circle. The magnitude of the acceleration is equal to the square of the speed of the object divided by the radius of the circle.

The net force on an object in uniform circular motion is always directed towards the center of the circle. The magnitude of the net force is equal to the mass of the object times the acceleration of the object.

The Uniform Circular Motion Interactive is a valuable tool for understanding the physics of uniform circular motion. It allows users to explore the effects of changing the radius of the circle, the speed of the object, and the mass of the object on the velocity, acceleration, and net force of the object.

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Answer:

hi

Explanation:

as a result of the collision of hot and cold air

hope it helps

have a nice day

Answer:

Hey mate.....

Explanation:

This is ur answer.....

Wind is the movement of air caused by the uneven heating of the Earth by the sun. ... Warm equatorial air rises higher into the atmosphere and migrates toward the poles. This is a low-pressure system. At the same time, cooler, denser air moves over Earth's surface toward the Equator to replace the heated air.

Hope it helps!

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Answer:

Alternating

Explanation:

Edge 2020