A mass weighting 48 lbs stretches a spring 6 inches. The mass is in a medium that exerts a viscous resistance of 27 lbs when the mass has a velocity of 6 ft/sec. Suppose the object is displaced an additional 6 inches and released.

Required:
a. Find an equation for the object's displacement, u(t), in feet after t seconds.
b. What is the mass of the object?
c. What is the damping coefficient?
d. What is the spring constant?

The earthquake would occur 13 minutes before 10:05 a.m. which will be at 9.52 am.

The p-waves travel with a constant velocity of 7 km/s

The time can be calculated by using the formula

t = d / v

where

T1 =  10:05 a.m

d is the distance they take to travel from the epicenter

v is the speed of the p-waves

On average, the speed of p-waves is

v = 7 km/s

d = 5600 km (given)

Substituting the values in the formula;

t = d / v

t = 5600 ÷ 7

t = 800 seconds

Converting into minutes,

t = 800 ÷ 60

t = 13.3

≈ 13 mins

T1 -  13 mins = T2

10:05 - 13 mins = 9.52 am

It means the earthquake occurred prior 13 minutes, that is at 9.52 am.

Therefore, the earthquake occurred at 9.52 am.

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Answer:

A transformer is a passive electrical device that transfers electrical energy from one electrical circuit to another, or multiple circuits.

Explanation:

Hope it helps

Answer:

A transformer with eletric abilities.

Explanation:

Answer:

time will it take for the car to stop = 8.75 s

Explanation:

The formula linking final velocity(v), initial velocity(u), acceleration(a) and time(t) is

v = u + at

The final velocity is 0 m/s since the car comes to a stop

Initial velocity u = 35 m/s

a = -4 m/s²

We have to find t

Plug in values

0 = 35 + (-4)t

-4t + 35 = 0

-4t = -35

t = -35/-4 = 8.75 s

Information technology has greatly impacted the economy, leading to increased productivity, efficiency, and innovation across industries.

The widespread adoption of information technology in the business world has led to a significant transformation in the way companies operate. Through the use of computers, software, and other digital tools, businesses are now able to streamline their operations, automate processes, and access vast amounts of data that can inform decision-making.

This has resulted in increased productivity, efficiency, and cost savings for companies. Additionally, information technology has facilitated the rise of new industries, such as e-commerce and digital marketing, while also enabling existing industries to adapt and innovate in response to changing market conditions.

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--The complete question is, How has information technology impacted the economy?--

SHM can be acquired by perpendicular projection of uniform circular motion of a particle on its diameter such a particle is called reference particle and its circular path is called reference circle.

A pendulum reaches its maximum velocity when the block is at its lowest point (the pendulum is vertical and pointing straight down). We can then use the term for conservation of energy to determine the maximum height of the block.

As the pendulum swings downward, gravity converts this potential energy into kinetic energy, so that at the bottom of the swing, the pendulum bob has zero potential energy, and its kinetic power, (1/2)mv2, equals the initial potential energy (mgh). (So the velocity, v, equals √(2gh).)

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Answer:

The magnitude of the free-fall acceleration at the orbit of the Moon is \(2.728\times 10^{-3}\,\frac{m}{s^{2}}\) (\(\frac{2.784}{10000}\cdot g\), where \(g = 9.8\,\frac{m}{s^{2}}\)).

Explanation:

According to the Newton's Law of Gravitation, free fall acceleration (\(g\)), in meters per square second, is directly proportional to the mass of the Earth (\(M\)), in kilograms, and inversely proportional to the distance from the center of the Earth (\(r\)), in meters:

\(g = \frac{G\cdot M}{r^{2}}\) (1)

Where:

\(G\) - Gravitational constant, in cubic meters per kilogram-square second.

\(M\) - Mass of the Earth, in kilograms.

\(r\) - Distance from the center of the Earth, in meters.

If we know that \(G = 6.674\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}}\), \(M = 5.972\times 10^{24}\,kg\) and \(r = 382.26\times 10^{6}\,m\), then the free-fall acceleration at the orbit of the Moon is:

\(g = \frac{\left(6.674\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}} \right)\cdot (5.972\times 10^{24}\,kg)}{(382.26\times 10^{6}\,m)^{2}}\)

\(g = 2.728\times 10^{-3}\,\frac{m}{s^{2}}\)

An autobiography, like a memoir, is the writer's recounting of his or her life and is written in the first person, making the writer the protagonist of the narrative.

Contemporary/Realistic: In order to accurately portray our environment and society, realistic fiction develops fictional people and circumstances. Growing up and dealing with social and personal issues are the main themes. Characters in this genre are depicted as they learn about both themselves and others.

Historical and contemporary fiction make up realistic fiction's two subgenres. Unlike current fiction, which takes place in the present or recently past, historical fiction takes place at a period that is far enough back in history to be deemed history.

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Answer: the answer is b

Explanation:

edge

The electron number cannot be used instead because electrons can be removed from or added to an atom (option C)

The element of an atom is determined by its proton count, while the electron count can exhibit variability. Take, for instance, a sodium atom, which encompasses 11 protons and 11 electrons. However, it has the capacity to relinquish one electron, transforming into a sodium ion housing only 10 electrons.

This occurs due to the relatively loose binding of electrons to the nucleus, enabling their removal through the influence of an electric field or alternative mechanisms.

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The traffic cop needs 23.3 seconds to pass the automobile.

When your velocity (not speed) changes, you are accelerating. A automobile moving at a steady 100 km/h in a straight line has no acceleration. Average acceleration is equal to (change in velocity) / (duration). The car's acceleration is zero because its change in velocity is also zero.

\(d1 = v1*t1 = 35.0 m/s * 1 s = 35.0 m\)

\(d = d1 = 35.0 m\)

\(d2 = v2*t + (1/2)at^2\)

\(d2 = (1/2)at^2\)

\(v2*t + (1/2)at^2 = (1/2)at^2\)

\(v2*t = (1/2)at^2\)

Solving for t, we get:

\(t = (2v2/a) = (235.0 m/s)/3.0 m/s^2 = 23.3 s\) (rounded to 2 decimal places)

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The area of Mrs. Turner's apartment is approximately 0.05304 square feet.

To find the area of Mrs. Turner's apartment, we need to convert the measurements from the scale drawing to the actual measurements in feet, using the given scale factor of 1 inch/18 feet.

Length of apartment in feet = 6.25 inches × (1 foot/18 inches) = 0.34722 feet

Width of apartment in feet = 2.75 inches × (1 foot/18 inches) = 0.15278 feet

Now, we can calculate the area of the apartment in square feet by multiplying the length and width:

Area of apartment in square feet = Length × Width = 0.34722 feet × 0.15278 feet = 0.05304 square feet

Therefore, the area of Mrs. Turner's apartment is approximately 0.05304 square feet.

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Answer:

C.  Rotational motion

Explanation:

The kinematics of rotational motion describes the relationships between the angle of rotation, angular velocity, angular acceleration, and time. It only describes motion—it does not include any forces or masses that may affect rotation (these are part of dynamics). Recall the kinematics equation for linear motion: v = v+at (constant a).

Rotational motion is mutually exclusive with each of the others. Hence, option (C) is correct.

"The motion of an object around a circular route, in a fixed orbit, is referred to as rotational motion."

Rotational motion dynamics are identical to linear or translational dynamics in every way. The motion equations for linear motion share many similarities with the equations for the mechanics of rotating objects. Rotational motion only takes stiff bodies into account. A massed object that maintains a rigid shape is referred to as a rigid body.

Curvilinear motion is the movement of an object along a curved route. Example: A stone hurled at an angle into the air.

The motion of a moving particle that follows a predetermined or known curve is referred to as curvilinear motion. Two coordinate systems—one for planar motion and the other for cylindrical motion—are used to examine this type of motion.

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Answer:

Not gonna lie. I actually had to think about this a lot XD

Running in the rain can cause you to slip and get hurt. Which I think isn't what you would want.

Walking in the rain (although it is sad), is actually a better idea than running.

Hope this helps!

Answer:

Walk

Explanation:

Running might stop you from being outside for as long, but running on wet ground will most likely result in a not-so-graceful faceplant.

Answer:

False

Explanation:

17%

the answer to your question is false

Answer:

This is because there is no problem of heating up of the atmosphere around the shuttle at takeoff, but on low-level reentry, the atmosphere around the shuttle is heated up.

Explanation:

When a rocket takes off, it is relatively travelling at a lower speed at low-level atmosphere where the atmosphere is densest. This slow speed means that the air drag on the shuttle is not too much that the air is compressed and heated up. The result is that not much atmospheric heating is encountered, as the rocket's speed accelerates slowly and is only very fast at high-level atmosphere where the air is thinnest.

For low-level reentry, the shuttle is accelerated from outer space, under the influence of gravity, and has reached a sufficiently high speed at low-level atmosphere where the air is densest. At this level, the atmosphere immediately in front of the shuttle is greatly compressed. The effect is that the compressed atmosphere becomes exceedingly hot, and ignites into a burning flame in front of the shuttle. At this stage, the thermal shielding tiles on the wings of the shuttle is very important, and a damaged tile that was no problem on takeoff becomes a problem at this stage.

Answer:

The fields are at right angles to each other and to the direction of the wave.

Explanation:

The physical quantity that does the slope of the v2/2 v/s h graph represent is the slope-g. The slope is representing the change in v over the change in time.

By definition, that is the acceleration. Also extra than only a gimmick, it is geometry's manner of displaying us how variables now no longer most effective relate to 1 another, however how they are able to constitute the fee of alteration among the variables.

The slope of the displacement time graph offers us the bodily amount called pace. The slope of a pace graph represents an object's acceleration. As a result, the cost of the slope at a given time represents the object's acceleration at that time. The fee of changing of an object's pace with admire to time is described as acceleration.

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Answer:

Explanation:

The work-energy theorem says that the change in kinetic energy of a system is equal to the work done.

Now in our case

Therefore, the above equation gives

Now we need to solve for v_f .

Mutlipying both sides by 2 gives

dividing both sides by 1079 gives

Finally, adding 3.00^2 to both sides gives

Finally, simplifying the right-hand side gives

taking the square root of both sides gives

Hence, the final speed of the car is 19.49 m/s.

Answer:

 ΔU = 2 mg h

Explanation:

In a spring mass system the potential energy is U = m g h

where h is measured from the equilibrium point of the spring

the potential energy at the highest point is

         U₁ = m g h

the potential energy at the lowest point is

         U₂ = m g (-h)

instead in this energy it is

          ΔU = 2 mg h

In this two points the kinetic energy is zero, but there is elastic potential energy that has the same value in the two points, so its change is zero

Potential energy is defined as the energy stored in a body which may convert into kinetic energy when moved.

The Formule of the potential energy is \(mgh\) The correct answer is 0

Hence, \(U = 2 mg h\)

 The H stated as the measured from the equilibrium point of the spring

Therefore, the potential energy at the maximum point is  \(U_1 = m g h\)  and the potential energy at the minimum point is    \(U_2 = m g (-h)\)

Hence, after solving it we got

         \(U_1 -U_2 = 2 mg h\)

Therefore, the energy change in the process is 0.

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Answer:

I think it's because the light waves travel faster than the sound waves.

The speed of light is far greater than the speed of sound hence, sound waves always reach the observer after the light waves.

Light occurs in the electromagnetic spectrum. Recall that light can be transmitted through vaccuum unlike sound.

The speed of light is far greater than the speed of sound hence, sound waves always reach the observer after the light waves.

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Answer:

Therefore The hypothesis is not plausible Because

\(P.E \geq P.E_e\)

\(P.E=12.435*10^{-5}J \geq 1.4*10^{-7}J\)

Explanation:

From the question we are told that:

Mass \(M=0.45mg\)

Jump height \(h=3.5cm \approx 0.03m\)

Percentage strain \(\mu =100\%\)

Generally the equation for potential energy is mathematically given by

\(P.E=mgh\)

\(P.E=0.45*10^{-3}*9.8*0.03\)

\(P.E=12.435*10^{-5}J\)

Generally the equation for Elastic potential energy is mathematically given by

\(P.E_e=0.5*stress*strain *volume\)

\(P.E_e=0.5*1*2*10^6*1*1.4*10^{-4*(10^-3)^3}\)

\(P.E_e=1.4*10^{-7}J\)

The hypothesis is only plausible at conditions where

\(P.E\leq P.E_e\)

Therefore The hypothesis is not plausible Because

\(P.E \geq P.E_e\)

\(P.E=12.435*10^{-5}J \geq 1.4*10^{-7}J\)

Answer:

"A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the blades. These blades turn a generator."

Answer:

B. O.4692 mm

Explanation:

I hope its help keep safe

Answer:

Its  D trust me it is

Explanation:

Given that,

The equation is "F=kx"

To find,

The derivative equation.

Solution,

We are given with the given equation which is as follows :

F = kx ...(1)

Where, F is force, k is spring constant and x is distance covered by the spring

Differentiate equation (1) wrt x.

\(\dfrac{dF}{dx}=\dfrac{d}{dx}(kx)\\\\\dfrac{dF}{dx}=k\)

As k is constant.

Hence, this is the required solution.

Answer: so it can reach the frame

Explanation:

Answer:

To increase force on the door

(a) The observed interference is destructive, as the phase difference between the waves exceeds π.

(b) The phase difference between the waves is less than π, so the observed interference is constructive.

When the observer is 1.15 m from speaker B, the path difference between the waves from the two speakers is:

Δx = x₂ - x₁ = 2.50 m - 1.15 m = 1.35 m

The corresponding phase difference is:

Δφ = 2π (Δx / λ) = 2π (1.35 m / (343 m/s / 429 Hz)) ≈ 4.16 rad

Since the two speakers are vibrating exactly out of phase, the phase difference between their waves is π, which is approximately 3.14 rad. Therefore, the observed interference is destructive, as the phase difference between the waves exceeds π.

When the observer is 2.00 m from speaker B, the path difference between the waves from the two speakers is:

Δx = x₂ - x₁ = 2.50 m - 2.00 m = 0.50 m

The corresponding phase difference is:

Δφ = 2π (Δx / λ) = 2π (0.50 m / (343 m/s / 429 Hz)) ≈ 1.55 rad

Since the phase difference between the waves is less than π, the observed interference is constructive.

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The statement that is correct is that the contents of the cup form a mixture.

Though the question is incomplete but I would try to give you a good explanation as much as I can. We must recall that when we talk about a mixture, we have to note that the term mixture would refer to the combination of two or more substances that do not chemically react together.

In this case, we have been told that we have a water that was pure and then we add dirt to it. It is clear that the water and the dirt do not react in any way hence what we have formed is a mixture.

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The Magnus effect can not be observed in skiing.

Magnus' effect: When there is relative motion between the spinning body and the fluid, a sideways force is generated on a rotating cylindrical or spherical solid immersed in the fluid (liquid or gas). The effect, bears the name H.G. Magnus Phenomenon, after the German scientist and chemist who first experimentally explored the effect in 1853.

The ball is pushed higher into the air by the Magnus Effect, which has an equal-and-opposite effect to the friction between the air and the ball.

A deflection in the direction perpendicular to the spinning axis and the velocity vector results from the spinning. Tennis players frequently use top or backspin when striking the ball.

When a fastball has a backspin, the upward Magnus Effect works against gravity to keep the ball in the air longer. When a curveball has topspin, however, the downward Magnus Effect works in favor of gravity to shorten the baseball's flight.

In skiing, there is no Magnus effect

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In which of these sports can one not observe the Magnus effect?

a) Baseball

b) Tennis

c) Basketball

d) Skiing

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

Explanation: