Ash is a particular problem for air traffic because
O people like to vacation near and take flights near ash producing volcanoes
O major air routes go over active volcanoes
O ash can interfere with electrical systems
O ash spreads through the atmosphere

The frequency of such a tsunami wave is 0.00046 Hz.

The frequency of any wave is given by the formula,

f = speed of wave/wavelength of wave.

Now, for the tsunami wave, the speed is given to be 750km/h and the the wavelength is 450km.

So, converting the speed and wavelength into standard units,

Speed = 208.33 m/s.

Wavelength = 450000m.

Putting values,

Frequency of tsunami wave = 208.33/450000

Frequency of tsunami wave = 0.00046 Hz.

So, the frequency of the tsunami wave is 0.00046 Hz.

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Given that the blades in a blender rotate at a rate of 7300.42 rpm, and when the motor is turned off during operation, the blades slow to rest in 7.47 s.

We need to find the angular acceleration as the blades slow down. Let us find the angular acceleration. We know that the angular acceleration is given by the formula:angular acceleration

(α) = (ωf - ωi) / t,

where ωi is the initial angular velocity, ωf is the final angular velocity and t is the time taken to slow down to rest. Here, ωi = 7300.42 rpm and ωf = 0 since the blades come to rest. Therefore, we have:

α = (0 - 7300.42 rpm) / 7.47 sα

= -977.07 rpm / s

The negative sign indicates that the blades are slowing down, which is the direction of the acceleration. Let us convert this to SI units:

α = -2π(977.07) / 60 rad/s²α

≈ -102.43 rad/s²

Therefore, the angular acceleration as the blades slow down is approximately -102.43 rad/s².

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Distance walked to the west= 15m

" " " " north= 20m

" " " " east = 15m

Total Distance= (15+ 20+ 15) m

= 50m

Asha covered 50m distance in total.

Answer:

Maximum Height

Explanation:

The maximum height is the highest point reached by a projected body. At this point, final velocity, v of the body is equal to 0; because upward motion is at its peak and the body start to fall again.

Hence, final velocity v is always 0 at this maximum point and the direction of motion changes from upward to downward.

Final velocity at this maximum height is zero because of the directional change experied by the object and the fact that upward motion of the body terminates at this point.

Answer:

4.8 mph

Explanation:

From the question,

Average speed = total distance/total time

V = d/t....................... Equation 1

Where d = distance, t = time

Given: d = 26.2 miles, t = 5.5 hours.

Substitute these values into equation 1

V = 26.2/5.5

V = 4.76 mph

V ≈ 4.8 mph

Answer:

4.8mph

Explanation:

Doing it now on EDG

For those doing the exam on EDG science rn, i wish you luck~

Have a good day!~ :D

Answer:

Therefore, the speeds of the planes are 400,470 mph.

Explanation:

Speed= Distance/time

Answer:

Explanation:

Given:

S = 3 480  miles

ΔV = 70 mph

t = 4 h

_____________

V₁ - ?

V₂ - ?

Motion equations:

x₁ = V₁·t

x₂ = S - V₂·t

Equate:

x₁ = x₂

V₁·t = S - V₂·t

(V₁ + V₂)·t = S

We take into account that:

V₂ = V₁ +ΔV

(V₁ + V₁ + ΔV)·t = S

(2·V₁ + ΔV)·t = S

2·V₁ + ΔV = S / t

2·V₁ = S / t - ΔV

V₁ = (S / t - ΔV) /2 =(3 480 / 4 - 70) / 2 = 400 mph

V₂ = V₁ + ΔV = 400 + 70 =470 mph

Answer:

n =1.33 revolutions

Explanation:

Uniform Circular Motion

The angular speed can be calculated in two different ways:

\(\displaystyle \omega=\frac{v}{r}\)

Where:

v = tangential speed

r = radius of the circle described by the rotating object

Also:

\(\omega=2\pi f\)

Where:

f = frequency

Solving for f:

\(\displaystyle f=\frac{\omega}{2\pi}\)

Since the frequency is calculated when the number of revolutions n and the time t are known:

\(\displaystyle f=\frac{n}{t}\)

We can solve for n:

n=f.t

The particle moves in a circle of r=90 m with a speed v=25 m/s. Thus the angular speed is:

\(\displaystyle \omega=\frac{25}{90}\)

\(\displaystyle \omega=0.278\ rad/s\)

Now we calculate f:

\(\displaystyle f=\frac{0.278}{2\pi}\)

\(f=0.04421\ Hz\)

Calculating the number of revolutions:

n = 0.04421*30

n =1.33 revolutions

Answer:

4km

Explanation:

Distance=speed x time

Knowing this we know the time and speed

so it is 8 x .5= D

And 8 x .5 =4

If you have any questions let me know

The thermal energy will be more reflected by the surface of the Marble.

The thermal energy will be more reflected by the surface of the marble because marble has a higher thermal conductivity so will absorb more heat and will release more energy.

The thermal conductivity of any material is defined as the ability of the material to transfer heat through them. If the material is more conducting more heat will transfer through it.

For example, copper has a very high thermal conductivity that's why it is used in the wiring and also used in air conditioning piping so it can transfer faster energy in a lesser time.

So the marble absorbs more heat due to its higher thermal conductivity and becomes hot and will release a higher amount of heat than the ground.

Thus the thermal energy will be more reflected by the surface of the Marble.

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Answer:

marble

Explanation:

The problem states that two charges, q1 = 4.2 ×\(10^-6 C\) and q2 = 3.6 × \(10^-6 C\), are separated by a distance of d = 2.5 m.

In the given problem, we are provided with two charges, q1 and q2, and the distance between them, d. The charges are expressed in Coulombs (C), and the distance is given in meters (m).

These charges can be either positive or negative, indicating the type of charge they possess. The magnitude of the charge is given by the values mentioned, where q1 = 4.2 × \(10^-6 C\) and q2 = 3.6 × \(10^-6 C\).

The separation distance, d, between the charges is 2.5 m. This distance represents the distance between the centers of the charges.

The problem sets the stage for exploring various concepts in electrostatics, such as Coulomb's law, electric fields, and potential energy. With the provided information, further calculations and analysis can be performed to determine the forces, fields, and potential energy associated with the given charges and their separation distance.

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In computing the standard error of the mean, the finite population correction factor is used when n/N > 0.05, where N is the population size and n is the sample size.

The standard error of the mean (SEM) is a statistical term that reflects how much the sample mean deviates from the actual mean of the population the sample was taken from. The larger the sample size, the lower the standard error because the sample mean is closer to the actual population mean.

The standard error of the mean formula is:

SEM = s/√n

Where s is the standard deviation of the sample and n is the sample size.

The finite population correction factor (FPC) is a statistical term used to adjust for the reduction in the number of degrees of freedom that occurs when a sample is drawn from a finite population rather than an infinite one.

The finite population correction factor formula is:

FPC = √((N-n)/(N-1))

Where N is the population size and n is the sample size.

So, in computing the standard error of the mean, the finite population correction factor is used when n/N > 0.05, where N is the population size and n is the sample size.

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Answer:

D.

Explanation:

DId the test

The gravitational force acting on the body of mass 53 Kg on earth will be 530 Newtons.

Weight is the force exerted by earth on a body on the surface of earth. Mathematically -

W = mg

Given is a 53 kg object standing on the surface of the Earth.

The gravitational force acting on the body will be same as it weight and will be directed towards the center of earth. Using the formula for weight -

W = mg = 53 x 10 = 530 N                [taken g = 10 m/s²]

Therefore, the gravitational force acting on the body of mass 53 Kg on earth will be 530 Newtons.

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The force of gravity between the two objects is 1.33 x 10⁻¹⁰ N.

The force of gravity between the two objects is calculated by applying Newton's law of universal gravitation.

Fg = Gm₁m₂ / r²

where;

Fg = ( 6.67 x 10⁻¹¹ x 1 kg x 2 kg ) / ( 1 m )²

Fg = 1.33 x 10⁻¹⁰ N

Thus, the force of gravity is proportional to the product of the masses and inversely proportional to the square of the distance between them.

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Answer:

pls mrk me brainliest

Explanation:

Hydrostatic pressure is the pressure exerted by a fluid at equilibrium at any point of time due to the force of gravity. Hydrostatic pressure is proportional to the depth measured from the surface as the weight of the fluid increases when a downward force is applied. The hydrostatic pressure at any point in a fluid can be calculated by using the formula:

P = P0 + ρgh

where P is the hydrostatic pressure, P0 is the atmospheric pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the depth of the point from the surface.

a) In which fluid is pressure of 610 kPa first achieved?

It can be found out by adding up the hydrostatic pressures of each layer of fluid until we reach 610 kPa. Starting from gas layer:

Pgas = 60 kPa + (1 kg/m3)(9.81 m/s2)(1 m) = 60.00981 kPa

Palcohol = Pgas + (780 kg/m3)(9.81 m/s2)(60 m) = 460.00981 kPa

Poil = Palcohol + (840 kg/m3)(9.81 m/s2)(10 m) = 542.40981 kPa

Pwater = Poil + (990 kg/m3)(9.81 m/s2)(2 m) = 561.60981 kPa

Pglycerine = Pwater + (1236 kg/m3)(9.81 m/s2)(3 m) = 605.46981 kPa

Pmolasses = Pglycerine + (1500 kg/m3)(9.81 m/s2)(10 m) = 752.96981 kPa

The pressure of 610 kPa is first achieved in glycerine layer.

b) If the bottom of the pipe is at zero elevation what is

b) If the bottom of the pipe is at zero elevation what isthe pressure at bottom in kpa?

The bottom of pipe corresponds to molasses layer so use it to calculate hydrostatic pressure as calculated above:

Pbottom = Pmolasses = 752.96981 kPa

c) At what elevation is pressure of 640kpa?

It can be found out by subtracting hydrostatic pressures from each layer until it reach below 640kpa and then use interpolation to find exact elevation.

Starting from molasses layer:

Pmolasses - Pglycerine= (752.96981 - 605.46981)kpa=147.5kpa

This means that somewhere between glycerine and molasses layers there is a point with pressure of 640kpa.

Let x be distance from top surface of molasses layer to this point then:

640kpa=605.4698+1500(9.8)x

x=0.023m

Therefore elevation from bottom surface of pipe to this point is:

10-0-0-023=9-977m

d) If an open manometer attached to side pipe anywhere on oily portion determine height liquid level manometer.

An open manometer measures difference between atmospheric pressure and fluid pressure inside pipe.

Let y be height liquid level manometer above oil level then:

Patm-Poil=yρg

y=(Poil-Patm)/ρg

y=(542-4098-101325)/(1000*9-8)

y=-44-6m

This means that liquid level manometer will be below oil level by -44-6m or oil level will be above liquid level manometer by +44-6m.

Answer:

1.42

Explanation:

got it right on my homework

Answer:

The current would be multiplied by 1/4, meaning it is reduced by 3/4 of itself.

Explanation:

This is because when the resistance increases, the current decreases along with it.

When the driving frequency (ω) of an AC voltage source with a purely resistive load decreases, the voltage amplitude (V) stays the same. This is because a purely resistive load does not depend on the frequency of the voltage source. The voltage amplitude is determined by the voltage source itself and the resistance of the load.

To understand this concept, let's consider an analogy. Imagine a water pump that is connected to a hose, with water flowing through it. The pressure of the water (analogous to voltage amplitude) is determined by the pump itself and the resistance of the hose (analogous to the resistive load).

The frequency at which the pump operates does not affect the pressure of the water, as long as the resistance of the hose remains the same. Similarly, in a purely resistive load, the voltage amplitude is determined by the voltage source and the resistance of the load, and not by the driving frequency.

The voltage amplitude stays the same when the driving frequency decreases.

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Answer:

.92 T

Explanation:

This is just a plug-and-chug question.

Here is the formula: B = uni

u = vacuum permeability = 4pi * 10^-7 this is a given constant

n = turns per meter = 1040/ (4.4*10^-2)

i = current = 31 A also given by the problem

so B = .92 T

The unit of the magnetic field is Tesla ("T")

Answer:

In a closed system, the total energy is conserved or remains the same as energy transformations take place.

Explanation:

The law of conservation of energy states that energy cannot be created or destroyed but can be transformed from one form to another.

This law of conservation of energy applies only to a closed system. A closed system is a system which does not exchange energy with its surroundings. All forms of energy conversions occurring within a closed system does not result in an increase or decrease of the total energy of the system, rather, energy remains constant. For example, the universe is a closed system in that all forms of energy conversions occurs within it and energy is not exchanged with an external environment. However, the earth is not a closed system as some of the energy it receives from the sun can be radiated out into space. Since it's an open system, its total energy can change.

The total energy of a closed system as energy conversion takes place

remains constant.

A closed system is the system which doesn't permit any movement of matter

in and out of the system. The closed system doesn't allow the exchange of

energy with its environment.

Since energy exchange isn't permitted in the closed system, the energy

remains constant during energy conversion.

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Number of oxygen molecules in each breath is 2.9X10^21

Given that the volume of air inside a breath (V) = 6.0×10^−4 m^3

oxygen in fresh air = 20%

volume of oxygen in fresh air = 20/100 x 6.0×10^−4 = 1.2x10-4m^3

pressure in the lungs (P)=  1.0×10^5 pa

Temperature of air (T) =300K

Using ideal gas equation find the number of moles of oxygen

PV = nRT

Then n = 1.0×10^5 x  1.2x10-4 / 8.314 x 300 = 4.8x10-3mol

We know the number of molecules in 1 mol is 6.023x10^23

Then the number of molecules in 4.8x10-3mol of oxygen is =

4.8x10-3molx 6.023x10^23 = 2.9x10^21

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The rock will compress as the stress applied increases with depth and it will break when it cannot withstand the stress.

The pressure or stress on the rock is defined as force per unit area of the rock which equally increases with depth. This can be expressed as follows;

\(P= \frac{F}{A}\\\\P = \rho gh\)

where;

Thus, we can conclude that the stress on the rock will increase with increase in depth. The rock will compress as the stress applied increases with depth and it will break when it cannot withstand the stress.

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3D lasers scanner: uses laser projector and cameras to determine part dimensional coordinates to high degree of accuracy, high cost.

Scales: similar to a ruler used for linear measures with "eyeball" accuracy, traditional, affordable, and occasionally insufficiently exact.

Measurements are fairly accurate thanks to the caliper's ability to expand to fit the part being measured.

Coordinate measuring machine: uses probe to touch part and senses x, y, and z coordinate locations that record information into memory (also known as digitizing model), accuracy in the 0.001 mm range, larger volumes greatly increase system cost

No of the size or surface details of the object being scanned, 3D laser scanner uses either phase-based or LIDAR technology to reliably and effectively gather 3-dimensional data. 3D laser scanning generates clear and accurate digital records of present conditions without actually touching what is being measured. The scan generates countless numbers of measurement points known as "coordinates." "Point clouds" are collections of points that together represent raw data. An x, y, and z value is contained in each coordinate in a point cloud. These values are often referred to as northing (y), easting (x), and elevation (z). These points have such fine precision that it is possible to measure exactly from one point to any other point in the point cloud.

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Answer: Heyo Kenji Here! Here's your answer- A planet is most likely to have tectonic activity.

Explanation: Hope this helps!

Have a nice day!

- Kenji ^^

Answer:

B is the answer.

Explanation:

I am doing the same Assignment.

1. The deceleration of the bus is -13.89 m/s²

2. The time taken for the bus to stop is 1.2 s

The deceleration of the bus can be obtained as follow:

v² = u² + 2as

0² = 16.67² + (2 × a × 10)

0 = 277.8889 + 20a

Collect like terms

0 - 277.8889 = 20a

-277.8889 = 20a

Divide both side by 20

a = -277.8889 / 20

a = -13.89 m/s²

Thus, the deceleration of the car is -13.89 m/s²

The time taken for the bus to come to rest can be obtained as follow:

v = u + at

0 = 16.67 + (-13.89 × t)

0 = 16.67 - 13.89t

Collect like terms

0 - 16.67  = -13.89t

-16.67 = -13.89t

Divide both sides by -13.89

t = -16.67 / -13.89

t = 1.2 s

Thus, we can conclude that the time taken is 1.2 s

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At a constant pressure, the volume of a gas varies as to the absolute temperature and at a constant volume the pressure of the gas varies directly with the absolute temperature. This is known as ideal gas law.

The statement describes two fundamental gas laws: Boyle's Law and Charles's Law. When combined, they form the ideal gas law.

According to Boyle's Law, the volume of a gas at constant temperature is inversely proportional to its pressure. It may be expressed mathematically as P₁V₁ = P₂V₂, where P₁ and V₁ are the beginning pressure and volume, and P₂ and V₂ are the final pressure and volume.

According to Charles' Law, the volume of a gas under constant pressure is exactly proportional to its absolute temperature. V₁ / T₁ = V₂ / T₂, where V₁ and T₁ are the beginning volume and temperature, and V₂ and T₂ are the final volume and temperature.

When these two laws are combined, we get the ideal gas law: PV = nRT, where P is pressure, V is volume, n is the number of moles, T is the absolute temperature, and R is the ideal gas constant. The connection between pressure, volume, temperature, and the quantity of gas molecules is described by this law.

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1.5 meters from a person's foot to his heart, 230 grams of blood must be pumped with a minimum effort of 3.45 joules by the heart.

An applicant is asked to bring a work sample to the job interview, which could be something like an example of their writing or editing. The hiring supervisor reviews these samples as examples of the kind of work that the candidate is capable of producing, and this evaluation becomes a part of the broader hiring process.

The fact that you can sustain yourself through work reinforces your sense of pride and self-satisfaction. You can pay your bills and indulge in leisure activities using the money you earn from employment. People with disabilities are more frequently seen

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