to what maximum height can water go as it goes into a 3.19-cm-diameter nozzle from a 9.00-cm-diameter fire hose while carrying a flow of 30.5 l/s? ignore drag, and assume that the nozzle points straight up.

Answers

Answer 1

Bernoulli's equation formula is a relation between pressure, kinetic energy, and gravitational potential energy of a fluid in a container. The formula for Bernoulli's principle is given as follows: p + 1 2 ρ v 2 + ρ g h = c o n s t a n t.

An object's kinetic energy is the energy it has as a result of motion. Applying force is necessary if we want to accelerate an object. We have to put in work to apply a force. After the work is finished, the object will be moving at a new, constant speed because energy has been transferred to it. The science of fluid mechanics examines how fluids—including liquids, gases, blood, and plasma—behave both at rest and while moving. There are numerous uses for fluid mechanics in astrophysics, chemical and mechanical engineering, and biological systems.

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Related Questions

Calculate the average speed of a complete round trip in which the outgoing 300 km is covered at 97 km/h , followed by a 1.0- h lunch break, and the return 300 km is covered at 55 km/h .

Answers

The average speed of the complete round trip is 62.85 km/h.

The average speed is nothing but the total distance travelled per unit time.

or in other words,

Average speed = [tex]\frac{Total distance travelled}{total time taken}[/tex]

Now, Total distance travelled = 300km + 300 km = 600 km

and the time taken = t1 + t2 + t3

t1 = distance/speed

t1 = 300km/(97km/h)

t1 = 300/97 Hour = 3.0927 Hour

t2 = 1 Hour

and t3 = distance/speed

t3 = 300km/(55km/h)

t3 = 300/55 Hour = 5.4545 Hour

Total time = t1+t2+t3

T = 3.0927+1+5.4545 = 9.547 Hour

So, average speed = total distance / total time

Average speed = 600km/9.547 Hour

Average speed = 62.85 km/h

Hence the average speed is 62.85 km/h.

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2. There is a bell at the top of a tower that is 45m high. The bell weighs 190N.
The bell has
energy. Calculate it:

Answers

Answer:

4,275

Explanation:

formula:1/2mv square

1/2×190×45=4,275

A kangaroo moves with a constant speed of 90 km/h for 20 m on a straight road. Calculate the distance traveled in this period of time​

Answers

We first apply the data to the problem.

Data:

V = 90km/hT = 20minD = ?

Now, we convert the minutes to hours.

Conversion:

T = 20 min • (1 hr / 60 min)T = 1/3 hr

Then, we apply the formula that is.

Formula:

D = V • T

Finally we develop the problem.

Developing:

D = (90km/h) • (1/3h)D = 30km

The distance traveled by the kangaroo is 30 kilometers.

3. The average human walks at a speed of 5 km per hour. If your PE teacher asks you to
walk for
40 minutes in
gym class, how far would you walk (km)?

Answers

The average human walks at a speed of 5 km per hour. If your PE teacher asks you to walk for 40 minutes in gym class, you would walk for 3 Km.

What is Average speed?

The average speed is the  displacement of a particle divided into a time in which the displacement occurs. Instead, instantaneous speed is the limit of the average speed as the time interval approaches zero.

Usually,

Speed = Distance/ Time

Assuming you also walk with the average human walking speed of 5 km/h. We know the above formula of speed and now making distance the subject, distance is a product of speed and time.

Here, time is 40 minutes and if expressed in hours can be converted as,

40/60 = 0.6 hours.

Distance = 5 × 0.6

             = 3 km

Thus,the average human walks at a speed of 5 km per hour. If your PE teacher asks you to walk for 40 minutes in gym class, you would walk for 3 Km.

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a car moving at 30 m/s backwards it completes this motion is 6/s. what is the acceleration of this car

Answers

The acceleration of this car is 5 m/s².

Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector portions. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.

Calculation:-

initial velocity = 0 from rest

final velocity = 30 m/s

time = 6 sec

acceleration = rate of change of velocity

                     = 0 - (-30) /6

                      = 5 m/s²      

Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.

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A coaxial cable consists of alternating coaxial cylinders of conducting and insulating material. Coaxial cabling is the primary type of cabling used by the cable television industry and is also widely used for computer networks such as Ethernet, on account of its superior ability to transmit large volumes of electrical signal with minimum distortion. Like all other kinds of cables, however, coaxial cables also have some self-inductance that has undesirable effects, such as producing some distortion and heating

Answers

Coaxial cable may experience unpleasant interference from electrical wires. Therefore, even if the cables are divided by wood or other building materials, keep coax wires at least 6 inches away from electrical cables.

Explain about the Coaxial cables?

A form of copper cable known as coaxial cable is designed to prevent signal interference by using a metal shield and other parts. It is generally utilized by cable TV providers to link their satellite antenna facilities to client residences and establishments.

The same coaxial cable network that delivers cable television and internet to your house is used for both services. First, your internet service provider sends a data signal to your modem via the coaxial cable, also known as coax, inside your home.

You will need a coaxial cable connected to your TV if you want to watch live TV through a provider like Free view or Free sat.

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HELP! will mark brainliest
State your hypothesis. Make sure your hypothesis is worded as an if, then statement and relates the independent variable of wrong length to the dependent variable of wave frequency.

Answers

If I increases the string length, the frequency will decreases and vise versa.

What is frequency?

In physics, frequency is the number of waves that pass a fixed point in a unit of time as well as the number of cycles or vibrations that a body in periodic motion experiences in a unit of time.

For string wave, we know that,

frequency, n = [tex]\frac{1}{lD}[/tex][tex]\sqrt{\frac{T}{\pi \rho} }[/tex]

where, l = length of the string.

D = diameter.

T = tension

ρ = density of the material.

Hence, we can see that, frequency of the wave is inversely proportional to the length of the wire. So, on increasing string length, frequency of the wave will decreases.

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A light, inextensible cord passes over a light,
frictionless pulley with a radius of 14 cm. It
has a(n) 14 kg mass on the left and a(n)
8.6 kg mass on the right, both hanging freely.
Initially their center of masses are a vertical
distance 1.9 m apart.
The acceleration of gravity is 9.8 m/s².

Answers

A light, inextensible cord passes over a light, frictionless pulley with a radius of 8.9 cm. It has a 19 kg mass on the left and a 2.6 kg mass on the right, both hanging freely. The rate at which the two masses are accelerating when they pass each other is 7.44 m/s². The tension in the cord is 44.84 N.

What is tension of wire ?

In physics, tension is the force exerted on one or more bodies by ropes, cords, cables, or similar bodies. Anything that is pulled, hung, supported, or swung by a rope, cord, cable, etc., is subject to tension. Like all forces, stress can accelerate or deform objects.

Using Newton's Law to the mass m₁

m₁ g - T = m₁ a

where;

the tension T = m₁ (g -a) ----- Let this be equation (1)

For mass m₂,  

T - m₂ g = m₂ a   ------- Let this be equation (2)

equation both equation (1) and (2) together;

By rearrangement and collecting like terms;

a(m₂ + m₁) = g(m₁ - m₂)

Making acceleration (a) the subject of the formula:

a = 7.44 m/s²

According to equation (1), the cord's tension is:

Tension (T) = m1 (g -a)

T = 19(9.8 - 7.44) (9.8 - 7.44)

T = 19(2.36) (2.36)

T = 44.84 N

From this we can conclude that the speed at which the two masses accelerate as they pass each other is 7.44 m/s² and the tension in the cord as they pass is 44.84 N.

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the vertical deflecting plates of a typical classroom oscilloscope are a pair of parallel square metal plates carrying equal but opposite charges. the potential difference between the plates is 25.0 v. typical dimensions are about 3.9 cm on a side, with a separation of about 5.4 mm. the plates are close enough that we can ignore fringing at the ends. part a under these conditions, how much charge is on each plate?

Answers

If we keep oscilloscope plates close with potential difference 25 V , the  Charge on each plate will be 4.68 *10^-11 C.

How to calculate charge ?Charged material experiences a force when it is exposed to an electromagnetic field due to the physical property of electric charge.The number of charges (electrons) that go from a higher potential to a lower potential is referred to as quantity of charge. It refers to the total amount of electricity flowing via a conductor.

The capacitance of a parallel plate capacitor is given by:

C = ∈₀A / d

where

∈₀ = 8.85 *10^-12 F/m is the vacuum permittivity

A is the area of each plate

d is their separation

For the capacitor in the problem:

A= 0.033m² = 0.0011m²

d = 5.2 mm = 0.0052 m

Substituting,

C = (8.85 *10^-12) (0.0011m)/ 0.0052 = 1.87 *10^-12 F

The capacity is related to the charge on the plate by:

Q=CV

where

V = 25.0 V is the potential difference between the plates

C = 1.87 *10^-12 F

Substituting,

Q = (25.0) (1.87 *10^-12) = 4.68 *10^-11 C

Charge on each plate = 4.68 *10^-11 C

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a bus travels with an average velocity of 60km how long does it take to cover a distance of 500km​

Answers

Solution: given that; velocity (v)=60km/hr, distance (d)=500km, time (t)=? From velocity=distance/time....... :. 60=500/t, cross-multiply..... 60t=500, divide both sides by 60...... 60t/60=500/60, t=500/60, t=8.33~. Therefore the bus took 8hours, 33 minutes to cover the distance of 500km.

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a laser dazzles the audience in a rock concert by emitting red light with a wavelength of 685 nmnm . calculate the frequency of the light.

Answers

Wavelength of 685 nmnm  and the frequency of the light 0.43765322

What is the frequency of the light ?

Light has a wavelength of 685 nm, which can alternatively be written as 685 x 10-9 m. Wavelength: [=]

We are aware that light travels at a speed of 299 792 458 m/s, or around 3 x 108 m/s. [light speed equals c]

We may use the following formula to determine the frequency (f) given the two values:

f = c / ʎ

replacing the specified values:

f = (685 x 10-9 m) / (3 x 108 m / s)

f = 0.43765322

The frequency of the light 0.43765322

The range of the frequency of visible light is roughly 400 to 700 THz. A Terahertz, or THz, is a frequency measurement equal to one trillion Hertz. the range of electromagnetic fields. f = (463 x 10-9 m) / (3 x 108 m / s)

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a 650-n billboard worker stands on a 4.00-m scaffold weighing 600 n and supported by vertical ropes at each end. how far would the worker stand from one of the supporting ropes to produce a tension of 660 n in that rope?

Answers

Answer:

1.785  m

Explanation:

Without the worker the scaffolding produces 300N tension in each rope

  if worker is in the middle, each rope will support 1/2 of worker's weight (325 N)    for a total of 625 N <==== so worker will be pretty close to middle for tension of 660 N

 Need 360 N   in addition to 300N board

       360 * x   =  290 ( 4-x)    

           x = 1.785 meters from an end

    Well ....that is kinda the 'intuitive approach'.....maybe this way will be more clear:

The moments around one end have to be = 0 or the plank will move

  from the left end moments:

        600 ( 2.000) + 650 ( x)  = 660 (4.000)

            x = 2.215 m from left end    or    1.785 m from R end  (that has the 660 N tension)

If two tractors are pulling against each other at a tractor pull and the first tractor exerts 500N of force to the East and the second tractor exerts 350N of force to the west and the combined weight of the tractor is 800 kg, what is the acceleration of both tractors? In what direction?

Answers

Answer:

Explanation:

 

Given:

F₁ =500 N

F₂ = 350 N

m₁ = m₂ = m = 800 kg

__________

R - ?

a - ?

Resultant force:

R = 500 - 350 = 150 N

System acceleration:

a = R / (m₁ + m₂) = R / (2·m)

a = 150 / (800 + 800) = 0.094 m/s²

Direction R and a  - East

an airplane has a mass of 26900 kg and takes off under the influence of a constant net force of 38700 n. what is the net force that acts on the plane's 106 kg pilot?

Answers

The net force that acts on the plane's 106 kg pilot is 151.58N.

What is a net force?

The net force acting on an object is the result of all pushing and pulling forces acting on the object collectively (the sum). If there is an imbalance in the pushing and pulling forces acting on an object, the object will accelerate in the direction of the net force.

All forces acting on an object are added together to form the "net force." If the object is not moving, then this net force must be equal to zero, according to Newton's First Law.

acceleration a = F/m

a =  38700/ 26900

a = 1.43m/s²

F = ma

F = 106×1.43

F = 151.58N.

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a block has accleration a when pulled by a string. if two identical blocks are glued together and pulled with twice the orignal force, their accerleation will be?

Answers

you get the same acceleration.

we know that:

   F = ma
   a = F/m
    a = 2F/2m
     a = F/m

so if we double the force and the mass, you get the same acceleration.

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among the four giant planets, which one has the global-average density smaller than the density of liquid water and which one has the strongest magnetic field?

Answers

Saturn is less dense than Earth because it has a bigger volume.

Of all the planets in the Solar System, Saturn has the lowest density.

Why is Saturn so low in density?Saturn is not solid like Earth; instead, it is composed of gases.Saturn is hence quite light for its size.In fact, Saturn has a density that is even lower than that of water, making it the least dense planet in our solar system.The second-largest planet in the Solar System, Saturn is enormously big.However, it is less thick than water and primarily composed of gas.It can float on water since it is lighter than water.Because they have densities greater than water, none of the other planets in our solar system are able to perform this.

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What was the force of gravity on the ball when it was at the highest point in its flight?

Answers

Acceleration of gravity is 9.8

AP physics 1: Extra points!!

Answers

Tension force, Friction and gravity are acting on acrobat player while hanging in middle. and this is unbalanced force.

Tension is a contact force that is transmitted through a rope, thread, wire, or other similar material when pressures on the opposing ends tug on it. The rope that holds a tire swing to a tree branch is one such example. The rope is pulled upward by a branch tugging against the rope's tug tension, which is only a pulling force; the rope is dragged downward by gravity. Pushing on a slack rope will not cause it to be strained. As a result, the force of tension must always be represented in the direction that the string is pulling the object in a free-body diagram.

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when the displacement of a mass on a spring is 1/2 a , what percentage of the energy is kinetic energy?

Answers

The formula for total mechanical energy at maximum displacement (amplitude) is

ME = KE + PE = 0 plus (1/2)

*k*A^2 = (1/2)*k*A^2

Now, mechanical energy is constant during the displacement of a mass on a spring.

Now, when x equals A/2, or when displacement is equal to half of amplitude, then

PE = (1/4)*(1/2)*k*x2 = (1/4)*(1/2)*k*(A/2)*2

PE = (1/4)*ME

PE = ME - (1/4)*ME - KE = ME

KE = (3/4)*ME

KE/ME = 3/4 = 0.75

Part B.

When KE = PE, displacement is required.

If this event happens at 'x' displacement, then at this point we are aware that

ME = KE plus PE equals (1/2)*k*A2.

Because KE = PE

ME = PE + PE = (2*PE)*k*A2

PE = (1/4)*k*A^2

PE = (1/2)*k*x2 at x displacement, thus

(1/2)*k*x^2 = (1/4)*k*A^2

x^2 = (1/2)*A^2

(x/A)^2 = 1/2

sqrt(1/2) = 0.7071 for x/A

Using two reliable figures

x/A = 0.71

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what two basic measurements are taken to test insulation resistance? i. the actual leakage current flowing through the insulation. ii. the actual leakage current flowing through the conductor. iii. the actual resistance of the insulation. iv. the actual resistance of the conductor.

Answers

The insulation tester, often known as a Megger, is a device used to assess insulation resistance. For measuring insulating resistance, we utilise the following devices.


What is insulation resistance?
The insulation resistance of wires, cables, and electrical equipment is measured in ohms. It is critical to protect against electric shocks and to avoid equipment damage caused by inadvertent discharges. The insulating resistance is measured by testing and evaluating the status of the isolation (head and body.)

Direct indicating ohm metre with hand-operated DC generator

With direct indicating ohm metre and motor-driven DC generator

Direct indicating ohm metre with DC battery

Direct indicating ohm metre with a full-wave rectifier

Resistance bridge circuit with galvanometer and battery

The insulating resistance is measured using direct current voltage. We can create the DC voltage using a hand-driven dc generator or a motorised dc generator. Insulation functions as a capacitor. If the insulation quality is excellent, the capacitor will block the DC. Leakage current flowing through insulation shows inadequate insulation quality.

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lorry is moving with a uniform acceleration of 1.5ms2 .at a certain time it is travelling at a spedd of 6ms .calculate the speed of the lorry 4s later

Answers

The speed of the lorry 4 seconds later, given it was moving with uniform acceleration of 1.5 m/s² is 12 m/s

How do I determine the final speed of the lorry?

We'll begin by listing out the various parameters obtained from the question. This is shown below:

Acceleration (a) = 1.5 m/s²Initial speed (u) = 6 m/sTime (t) = 4 secondsFinal speed (v) =?

The final speed of the lorry can be obtained as follow:

a = (v - u) / t

1.5 = (v - 6) / 4

Cross multiply

v - 6 = 1.5 × 4

v - 6 = 6

Collect like terms

v = 6 + 6

v = 12 m/s

Thus, from the calculation made above, the final speed of the lorry is 12 m/s

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the y-axis carries a uniform linear charge density of -30 nc/m, and there is a 4.0 nc point charge at the point (4 cm, 0 cm, 0 cm) as well as a -12 nc point charge at the point (6 cm, 0 cm, 0 cm). what is the electric flux through a spherical surface of radius 5 cm centered at the origin?

Answers

The sphere's surface has a net flow of 339 103 Nm2/C.

What measures the Gauss law?

According to Gauss's rule of electricity, any closed surface's electric flux is inversely proportional to the net electric charge q enclosed by the surface, or q = q/0, where 0 is the electric permittivity of empty space, which has a value of 8.854 10-12 square coulombs per newton per square meter.

Given:

The total charge contained within the sphere's surface, q=-3 C

The sphere's radius is 5 cm (5 10 2 m).

To locate

the total electric flux across the sphere's surface.

Explanation:

The net electric flow through the surface of the sphere is determined by Gauss's law, which is as follows:

, Φ = q/ε0

which has a value of 8.854 10-12 square coulombs per newton per square meter.

where the permittivity of empty space equals 0.

Using the known values as a substitute

The sphere's surface has a net flow of 339 103 Nm2/C.

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if the ladder is just on the verge of slipping when the firefighter is 9.10 m from the bottom, what is the coefficient of static friction between ladder and ground?

Answers

Static friction between the ladder and the ground has a coefficient of

[tex]\mu_{s}[/tex] = 0.303.

A measure of static friction.

The maximum static friction force (F) that can exist between two surfaces before movement starts is divided by the normal force (N) to determine the coefficient of static friction.

x₁ = 8

x₂ = a₁

x₃ = x₁ cos θ

x₃ = 8 cos61 = 3.87m

x₄ = x₂cosθ = 9.1cos 61

x₄ = Lsin 60 = 16sin 60

[tex]x_{s}[/tex] = 13.856m

w₁ = mg = 840

w₂ = mg = 490

N₁ = mg + mg = 490+840 =1330N

N₂ = f = [tex]\mu_{s}[/tex]N₁

Torque about point is zero

[tex]\sum[/tex]Z = 0

mgx₃ +mgx₁ = N₂[tex]x_{s}[/tex]

N₂ = 490×387+840×4.41/13856

N₂ = 404.268

[tex]\mu_{s}[/tex] = N₂/N₁ = 404.268/1330 = 0.303

[tex]\mu_{s}[/tex] = 0.303

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three particles lie in the x-y plane: a 100 gram particle lies at point (1,1), a 200 gram particle lies at point (-2,0), and a 300 gram particle lies at point (0,3). all distances are measured in meters. what is the moment of inertia for this system rotating in the x-y plane around the origin?

Answers

The system rotating in the x-y plane about the origin has a moment of inertia of 3.6 kg/m2.

What is Moment of inertia?A body's resistance to having the speed of its rotation along an axis changed by the application of a torque is known as its rotational inertia, and this property may be measured quantitatively (turning force). The axis could be internal or exterior, fixed or not.I = mi * ri2 = m1 * r12 + m2 * r22 + m3 * r32 = 100*12 + 200*22 + 300*32 = 100+800 + 2700 = 3.6Kg-m2The Moment of Inertia for a point mass is defined as the mass times the square of the angle from the rotational reference axis. I=mr2. A kilogram is one kilogram, and a metre is one metre.In physics, a moment can be described as the turning that forces have on objects.

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a 58 kg sprinter, starting from rest, runs a 60 m long race in 7.8 s with a constant acceleration. how much work does the sprinter do during the first 2.5 s of the race?

Answers

Work done by the sprinter in first 2.5 s will be 702.699 J.

Work done is the product of force and distance covered.

Mathematically, W = Force * Distance

Mass of the sprinter = 58 kg

Distance covered by the sprinter = s = 60 m

Total time taken by the sprinter = t = 7.8 s

According to the Equations of motion S = ut + [tex]\frac{1}{2}at^{2}[/tex]

u = initial velocity = 0

a = constant acceleration

60 =  [tex]\frac{1}{2}a7.8^{2}[/tex]

60.84 a = 60 * 2

a = 1.97 [tex]m/s^{2}[/tex]

For a = 1.97 [tex]m/s^{2}[/tex] and t = 2.5 s

d =  [tex]\frac{1}{2}at^{2}[/tex]

Here also u is '0' because the distance is being measured from the starting point.

d = [tex]\frac{1}{2} *1.97*(2.5)^{2}[/tex]

d = 6.15 m

Work done by the sprinter = F * d

Force = mass * acceleration

F = 58 * 1.97

F = 114.26 N

distance for first 2.5 sec is 6.15 m

Therefore Work done = 6.15 * 114.26

W = 702.699 J

Work done by the sprinter is 702.699 J.

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a wagon wheel is constructed as shown. each of the eight spokes has a mass of 0.280 kg and are 0.3 m long. the outer rim has a mass of 1.4 kg. a small 10-g mass is attached by a string of negligible mass. the 10-g mass is released (from rest), what is the torque on the wheel?

Answers

The torque on the wheel is 0.0294 Nm

What is torque?

The term "torque" was coined by the ancient Romans. They described these necklaces with the Latin word "Torquere", a twisted helix, a spiral, which means "twist" and "turn".

Torque is a measure of the force that rotates an object around an axis. Torque causes an object to undergo angular acceleration in the same way that force accelerates an object in linear kinematics. Torque is a vector quantity. Newton meter is the unit of torque.

Torque = Force × Perpendicular distance line of action of force and axis

τ = mg × L

τ = 0.01 × 9.8 × 0.3

τ = 0.0294 Nm

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A mass on a spring undergoes shm. When the mass is at its maximum displacement from equilibrium, its instantaneous velocity?.

Answers

When the spring undergoes simple harmonic motion and its mass is at maximum displacement then its instantaneous velocity is zero.

Simple Harmonic Motion:

Simple harmonic motion is a periodic motion in which the acceleration of the object undergoing the simple harmonic motion is directly proportional to the distance of the object from its equilibrium position and is always directed toward the mean position.

At the maximum displacement, the spring is under its greatest tension, which forces the mass upward. At the maximum displacement, the spring reaches its greatest compression, which forces the mass back downward again.

Therefore we get that when mass is at its maximum displacement from equilibrium its instantaneous velocity is zero.

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explain how the energy/velocity of water/wind controls the size of the particles in clastic/detrital) rocks

Answers

In fast-moving water only coarse material settles out and fine material is carried away. In slow-moving water only fine material, which can settle out.

What is the velocity of water?The velocity of water is the rate at which water moves.A technique that can quickly clear your drains is high-velocity water jetting. This procedure forces water through your pipes at a very high velocity, which aids in dissolving and removing any material that has built up in your drains.The vector quantity velocity (v), denoted by the equation v = s/t, quantifies displacement (or change in position, s), over change in time (t).The volume and speed of the water affect the flow. It is significant because of how it affects the stream's ecosystems, living things, and water quality. Large, fast-moving rivers can be exposed to pollution releases and experience minimal effects

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a moth at about eye level is 16.4 cm in front of a plane mirror; you are behind the moth, 48.8 cm from the mirror. what is the distance between your eyes and the apparent position of the moth's image in the mirror?

Answers

The distance between the moth and its image in the mirror is equal to the distance between the moth and your eyes, which is equal to 43.7 centimeters.

The distance from the moth to its image is 16.4 cm, which is equal to 48.8 cm, because it's a plane mirror. So, if you want to know how far away from you the moth looks like it is, just subtract 48.8 cm (the distance between your eyes) from 16.4 cm (the distance between you and the moth).

The angle between these two objects is 48 degrees,

so S = 1/2  2  sin(48)

= 0.958 meters.

Moth + Mirror (dist1) + Me (dist2) = 48 * 0.958 = 43.7 centimeters

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a baseball and a bowling ball with the same momentum are rolling toward you. which one needs more efforts (either longer time or larger force) to be stopped?

Answers

The baseball will require longer time and the bowling ball will require  more effort to be stopped.

The bowling ball and baseball is moving with same momentum.

Let us say the momentum of the bowling ball is MV and the momentum of the baseball is mv.

According to second law of newton,

F = ΔMV/Δt

F = MΔv/Δt

So, the force is directly proportional to the speed of the object.

The speed of the bowling ball will be less than that of the baseball because the mass of the bowling ball is more and the mass of the baseball is less.

So, a greater force will be required to stop the baseball ball,

F = mΔv/Δt

v is more and the contact period Δt of the transfer of momentum is less so baseball will require longer time and a grater force will be required to stop the bowling ball because the speed is less.

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