A hydraulic lift with a circular output plunger of radius 0.5 m is used to lift a building of mass 10,000 kg. The input plunger (which is at the same height as the output plunger) has radius 0.01 m. How much force must be exerted on the input plunger to support the building

Answer:

We just know that the metal is called Vibranium.

to place something is the table   we need to know its atomic number and its mass. so if we can get that we can ans it.

Explanation:

There are six types of quarks: up, down, charm, strange, top, and bottom. Each type of quark has a different mass and charge. Antiquarks are the opposite of quarks in terms of charge, but have the same mass.

There are also six types of antiquarks: anti-up, anti-down, anti-charm, anti-strange, anti-top, and anti-bottom. When a quark and an antiquark come together, they form a meson particle. Mesons are short-lived particles that are important in understanding the strong nuclear force that holds protons and neutrons together in an atomic nucleus. Quarks and antiquarks are fundamental particles and cannot be broken down into smaller particles. They are also found only in high-energy environments, such as in particle accelerators or in the cores of stars.

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Answer:

Acceleration, a = 24m/s²

Explanation:

Given the following data;

Initial velocity = 0

Final velocity = 60

Distance =75

To find the final velocity of the object, we would use the third equation of motion;

\( V^{2} = U^{2} + 2aS \)

Where;

V represents the final velocity measured in meter per seconds.

U represents the initial velocity measured in meter per seconds.

a represents acceleration measured in meters per seconds square.

Substituting into the equation, we have;

\( 60^{2} = 0^{2} + 2a*75 \)

\( 3600 = 150a \)

\( a = \frac {3600}{150} \)

a = 24m/s²

Acceleration, a = 24m/s²

It takes Jupiter approximately 1 year to complete one orbit around the Sun. Therefore, it will take Jupiter approximately 1 year to return to the same position in the sky as viewed from Earth.

The time it takes for Jupiter to orbit the Sun (13 years) is known as its orbital period. However, from Earth's perspective, Jupiter's position in the sky is influenced not only by its orbital motion but also by Earth's own orbit around the Sun. Earth completes one orbit around the Sun in approximately 1 year, which means that it returns to the same position in its orbit. Therefore, for Jupiter to appear in the same position in the sky as viewed from Earth, it would take approximately 1 year, aligning with Earth's own orbit around the Sun.

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Answer:

v=1.132m/s

Explanation:

velocity=total distance/ total time

first convert 1km to m so that would be 1000m then add the total distance so 200+1000=1200. 1200 is the total distance. now add the total time so we need to convert 15 min to sec which is 900 sec. 160 +900=1060. now divide total distance by total time.

v=?

d=1200m

t=1060s

v=d/t

v=1200m/1060s

v=1.132m/s

Answer:

-220 j

Explanation:

In this case, a macro lens would've been ideal. In her backyard, Sue is taking pictures of some incredibly tiny and complex succulents. She aims to record as many specifics as she can.

A lens is a transparent piece of glass that, when light rays pass through it by refraction, either concentrates or disperses them. Lenses are employed in telescopes as well as other magnifying equipment because of their enlarging capabilities.

Refraction is the process by which a lens changes the path of sun beams as the pass thru it. It follows that objects viewed through a lens appear to be either larger or less then they actually are because the rays appear to originate from a location that is closer or further distant of where they actually do.

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The object has the greatest total work done on it by all the forces during its motion, when it is in Free Fall. The correct answer A.

The object that has the biggest total work done on it by all forces during its motion is the one that falls straight down, as it experiences the force of gravity over its entire path.

The object that slides down the frictionless inclined plane experiences the force of gravity over only part of its path, while the object that swings on the end of a string only experiences the force of gravity for a very short period of time.

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Answer:

See below ~

Explanation:

What is happening to each event as the climate changes? Temperatures are increasing, carbon dioxide levels are increasing, the pH of the ocean is decreasing, sea levels are increasing, and the amount of sea ice is decreasing.

Here are orders of answers from start

The main reason behind these situations is global warming

The emmison of carbon dioxide has increased a lot which is getting harmful day by day

The work done by the man against gravity in climbing to the top is 9,480 foot-pounds.

To calculate the work done by the man, we need to determine the total change in potential energy as he climbs up the helical staircase that encircles the silo. The potential energy can be calculated using the formula PE = mgh, where m represents the mass, g represents the acceleration due to gravity, and h represents the height.

In this case, the mass of the man is 190 lb, and the height of the silo is 80 ft. Since the man makes exactly four complete revolutions around the silo, we can calculate the circumference of the helical staircase. The circumference of a circle is given by the formula C = 2πr, where r represents the radius. In this case, the radius of the silo is 15 ft.

To find the work done against gravity, we need to multiply the change in potential energy by the number of revolutions. The change in potential energy is obtained by multiplying the mass, the acceleration due to gravity (32.2 ft/s²), and the height. The number of revolutions is four.

Therefore, the work done by the man against gravity in climbing to the top can be calculated as follows:

Work = 4 * m * g * h

    = 4 * 190 lb * 32.2 ft/s² * 80 ft

    = 9,480 foot-pounds.

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Answer:

SeC14

Explanation:

sec14>C12-O

but since you can't subtract o from c , you get this

Answer:

the stars which are red in color are cool.

Explanation:

The stars which has reddish color are cool in nature while those stars which has white and blue in color are very hot in nature. The stars change its color when they becomes hotter , first the star color reddish when they are cool but with increasing temperature it changes the color from reddish to orange then yellow. After yellow it turns green and finally get blue color when the stars are very very hot.

When ascending from deep-sea diving to sea-level, it is necessary to follow certain methods and a time-course to prevent decompression sickness. The optional methods and time-course to follow are given below:

Optional methods:1. Safety stop: This is the process of stopping at a depth of 15 feet for a few minutes. This allows the nitrogen in the body to escape safely. This is not necessary if the dive is less than 50 feet.2. Decompression stops: If the dive is deeper than 50 feet, decompression stops should be performed. This involves stopping at various depths on the way up to allow nitrogen to escape from the body.3. Surface Marker Buoy: This is a buoy that is placed at the surface to alert boat traffic that a diver is in the area.

Time-course:

1. For dives that are less than 30 feet, there is no need to follow any specific time-course.2. For dives that are deeper than 30 feet, it is recommended to ascend slowly and steadily, at a rate of no more than 30 feet per minute.

3. For decompression stops, the diver should remain at the stop depth for the recommended time, which is usually based on the depth of the dive.

4. The ascent should be interrupted if any signs of decompression sickness are present.

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Answer:

Number of Significant Figures: 3

The Significant Figures are 2 3 5

Explanation:

Yes, each of my magnets has both a north and south pole. The north pole is located on the side of the magnet where the field lines are leaving the magnet, and the south pole is located on the side of the magnet where the field lines are entering the magnet.

The north pole of a magnet is the end of the magnet where the magnetic field lines are leaving the magnet, and the south pole is the end of the magnet where the field lines enter the magnet. The poles of a magnet can usually be identified by using a compass.

The end of the compass needle that points towards the magnet is the north pole, and the other end is the south pole. The poles of a magnet can also be identified by the way they attract or repel other magnets.

The north pole of one magnet will repel the north pole of another magnet, and will attract the south pole of another magnet.

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We will determine the final speed as follows:

So, superman's final velocity is approximately 201 m/s.

[In this case superman's initial velocity is a datapoint that is not necessary]

Answer:

13 m/s²

Explanation:

Mass of object = 200 Kg

Applied force = 2600 N

Acceleration  = ?

Solution:

Definition:

The acceleration is rate of change of velocity of an object with respect to time.

Formula:

a = Δv/Δt

a = acceleration

Δv = change in velocity

Δt = change in time

Units:

The unit of acceleration is m.s⁻².

Acceleration can also be determine through following formula,

F = m × a

a = F/m  (N = kgm/s²)

a = 2600 kgm/s² / 200 Kg

a = 13 m/s²

\(\\ \rm\longmapsto F=ma\)

\(\\ \rm\longmapsto a=\dfrac{F}{m}\)

\(\\ \rm\longmapsto a=\dfrac{2600}{200}\)

\(\\ \rm\longmapsto a=13m/s^2\)

Answer:

The glass rod becomes negatively charged and the fur will be positively charged.

Explanation:

This happens because electrons will be transferred from the fur to the glass rod.

Hope this helps!!!

The correct answer for how the albedo of polar regions affect insolation is: Low temperatures are maintained because of the high amount of reflection.

The albedo of a surface refers to its ability to reflect sunlight. Higher albedo means more sunlight is reflected, while lower albedo means more sunlight is absorbed. Polar regions, such as the Arctic and Antarctic, have high albedo due to the presence of ice and snow, which reflect a significant portion of incoming sunlight.

When sunlight hits the polar regions with high albedo, a large portion of it is reflected back into space rather than being absorbed by the surface. As a result, less solar energy is available to heat the surface, leading to lower temperatures in these regions.

Therefore, low temperatures are maintained in polar regions because of the high amount of reflection caused by their high albedo.

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A 0 20-kg hockey puck initially traveling 5.0 m/s is pushed on ice by a hockey stick with a constant force of 7.0 N over a distance of 8.0 m. Friction is negligible. The final velocity of the hockey puck can be determined by using the equation, where Vf is the final velocity, Vi is the initial velocity, a is the acceleration, and d is the distance.Vf² = Vi² + 2ad

The force exerted on the hockey puck is given as,F = 7.0 NThe distance travelled by the hockey puck is given as,d = 8.0 mThe initial velocity of the hockey puck is given as,Vi = 5.0 m/sThe mass of the hockey puck is given as,m = 0.20 kgWe can determine the acceleration experienced by the hockey puck by using the following formula,

F = maSolving for a, we geta = F / ma = F / ma = (7.0 N) / (0.20 kg)a = 35.0 m/s²Substituting the values in the formula for final velocity,Vf² = Vi² + 2adVf² = (5.0 m/s)² + 2 × (35.0 m/s²) × (8.0 m)Vf² = 25.0 m²/s² + 560.0 m²/s²Vf² = 585.0 m²/s²Taking the square root of both sides, we get,Vf = √(585.0 m²/s²)Vf = 24.2 m/sTherefore, the final velocity of the hockey puck is 24.2 m/s.

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Convection is a method of heat transfer that occurs when fluids (liquids or gases) are heated and the resulting motion of the fluid carries heat from one location to another.

What is convection?

A thermometer measures an average kinetic energy of a substance - Correct

Heat is a form of energy - Correct

Convection occurs only in liquids and gases - Incorrect (Convection can occur in both liquids and gases, but it can also occur in solids).

All substances radiate heat- correct

Our body temperature is always equal to the temperature around us - Incorrect ( the body can be influenced by the external temperature, it is not always equal to it and has its own mechanisms to regulate its internal temperature), Heat flows from a colder substance to a hotter substance - Correct (This is the second law of thermodynamics). It occurs due to the density differences in a fluid caused by temperature variations. As a fluid is heated, its density decreases, causing it to rise. Cooler fluid, which is denser, then flows into the region left by the rising warm fluid, and the cycle repeats, creating a convection current.

There are two main types of convection: Natural convection, which occurs in the absence of any external forcing. Forced convection, where an external force, such as a pump or a fan, is used to drive the fluid motion and enhance heat transfer.

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An ideal bandpass filter with unit gain and a bandwidth of 200 Hz is applied to the input signal g(t) = 8 cos(400πt) cos(200,000πt) + 18 cos(200,000nt). The center frequency of the filter is 100,200 Hz. We can sketch the amplitude spectrum of the signal at the output of the filter using the following steps:

Step 1: Determine the Fourier transform of the input signal g(t)The Fourier transform of g(t) is given by: G(ω) = π[δ(ω + 2π × 200,000) + δ(ω - 2π × 200,000)] + π/2[δ(ω + 2π × 200) + δ(ω - 2π × 200)]

Step 2: Determine the transfer function of the bandpass filter

The transfer function of the ideal bandpass filter with unit gain and a bandwidth of 200 Hz centered at 100,200 Hz is given by: H(ω) = {1 for |ω - 2π × 100,200| < π × 100, and 0 otherwise}

Step 3: Multiply the Fourier transform of the input signal by the transfer function of the filter

The output of the filter is given by:

Y(ω) = G(ω)H(ω)The product of the Fourier transform of the input signal and the transfer function of the filter is shown in the figure below.

The given signal is a combination of two cosines, where the first cosine has a frequency of 400π radians/second and the second cosine has a frequency of 200,000π radians/second.

The output of the filter is a bandpass signal with a center frequency of 100,200 Hz and a bandwidth of 200 Hz. The amplitude spectrum of the output signal is zero outside the bandpass region and is equal to the product of the amplitude spectrum of the input signal and the frequency response of the filter within the passband region.

The amplitude spectrum of the output signal is shown in the figure below:

Therefore, the amplitude spectrum of the signal at the output of the filter is a bandpass signal with a center frequency of 100,200 Hz and a bandwidth of 200 Hz. The amplitude of the signal within the passband region is given by the product of the amplitude of the input signal and the frequency response of the filter within the passband region.

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Anticlockwise is the direction (for conventional current) (right to left in resistor).

What is the 10 resistor's current?

Thus, there will be no current flowing through the 10 resistor.

How much of a voltage loss does the 18 ohm resistor experience?

In accordance with the question, Atlast, we must determine the voltage drop across resistor 18 (V = IR). V is equal to 2.5 x 18 x 45 volts.

How can current flow through a resistor be determined?

Ohm's law, I=V/R, can be used to determine the current flowing through each resistor while the voltage is constant across each resistor.

What is the current formula?

I=V/R

The electric current equation is I=V/R, and it can be used to determine electric current. This equation, which is based on Ohm's Law, is also referred to as the "current equation." The variables "I" and "V" stand for current, voltage, and resistance, respectively.

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Answer:

1875 j

Explanation:

f * d = work

your AVERAGE force is (210+ 40)/2 = 125 N

125 * 15 = 1875 j

The work done during this period will be 1875 J.. if the body is displaced in the same direction of the force it will be positive.

Work done is defined as the product of applied force and the distance through which the body is displaced on which the force is applied.

Work may be zero, positive and negative.it depends on the direction of the body displaced

The given data in the problem is;

F is the average force applied by the worker

d is the displacement = 15 m

The average force is ;

\(\rm F_{AVG} = \frac{F_1+F_2}{2} \\\\ F_{AVG} = \frac{210+40}{2} \\\\ F_{AVG}=125 \ J\)

The work done by the worker will be;

\(\rm W= Fd \\\\\rm W= F_{AVG}d \\\\W= 125 \times 15 \\\\ \rm W=1875 \ J\)

Hence the work done during this period will be 1875 J.

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Answer:

Due to lower risk of injury or damage.

Explanation:

The high divers would choose to enter the water from the feet first because there is low risk of injury. The brain is the most important part of the body which very sensitive to any small injury. Small injury to brain leads to big problems in life. High divers can reach speeds of nearly 60 mph and enters about 28m into the water in about three seconds which can damage the head region if comes in contact with the ground so this is the reason the high divers avoid of entering in the water through their heads and choose entering through their feet.

The total number of revolutions undergone by the tub during the entire time interval is 23.1 revolutions.

To determine the total number of revolutions, we need to calculate the angular displacement of the tub during the starting phase, the stopping phase, and the constant speed phase.

During the starting phase, the tub goes from rest to its maximum angular speed of 2.2 rev/s. We can use the equation of motion for angular acceleration:

ω = ω₀ + αt

Given that ω₀ = 0 (initial angular speed) and ω = 2.2 rev/s (final angular speed), and t = 6.8 s (time), we can solve for α (angular acceleration). Using this angular acceleration, we can calculate the angular displacement (θ) during the starting phase.

During the stopping phase, the tub decelerates and comes to a stop. The angular displacement during this phase can be calculated using the same equation of motion for angular acceleration, with ω = 0 (final angular speed), ω₀ = 2.2 rev/s (initial angular speed), and t = 14.5 s (time).

Finally, during the constant speed phase, the angular displacement is given by ωt, where ω is the constant angular speed of 2.2 rev/s and t is the time interval between the end of the starting phase and the beginning of the stopping phase.

Adding up the angular displacements from each phase will give us the total angular displacement, which can be converted to the total number of revolutions by dividing it by 2π.

Calculating these values will result in a total of 23.1 revolutions undergone by the tub during the entire time interval.

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With a sufficient amount of energy, one electron from an atom can be extracted.

Ionization energy is the force necessary to ionize an atom. Energy must be supplied in discrete forms rather than constantly because only one electron may be removed from an atom at a time and a certain amount of energy will be needed to remove each electron.

We can therefore claim that each electron carries energy, but that this energy is quantized rather than continuous.

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The magnitude of the net linear acceleration of the car 13.0 s later is 7.15 m/s².

The net linear acceleration of an object moving in a circular path can be calculated using the equation:

a = v² / r

where a is the net linear acceleration, v is the velocity of the object, and r is the radius of the circular path.

In this case, the car starts from rest, so its initial velocity (v₀) is 0. The velocity of the car (v) after 13.0 s can be calculated using the equation:

v = v₀ + at

where t is the time and a is the constant rate of acceleration.

Substituting the given values, we have:

v = 0 + (0.550 m/s²) * (13.0 s) = 7.15 m/s

Now, we can calculate the magnitude of the net linear acceleration:

a = (7.15 m/s)² / 26.0 m = 7.15 m/s²

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