the gravitational force on the moon is one sixth the strength as compared to earth. what is the period of this same pendulum on the moon?

Answer:

241 m/s

Explanation:

Converting the last answer from kilometers/hour to meters/second

An object on Mars will move at a tangential speed of 867.64 km/h. The linear speed of a spinning object equals its tangential speed.

It is the rotational object's linear speed. You can figure it out by dividing the circumference by the rotating time

v = C/t

Given data;

The radius of Mars is,r =  3,397 km

Time is taken by Mars to complete one rotation,t =24.6 hours

v is the tangential speed =?

The circumference is found as;

C = 2πr

C=2×3.14×3397

C= 21.3 × 10³ km

To find the tangential speed substitute the value;

v = 21.3 × 10³ km / 24.6 h

v=867.2 km/h

Hence the tangential speed of objects on the planet’s surface will be 867.2 km/h.

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Answer:

icebergs float on water because ice is less dense than water. The same is true for a boat: a boat floats on water because, overall, it is less dense than the water.

Explanation:

The magnetizing current of a transformer does not lie in-phase with the applied voltage. It lags the applied voltage by a small angle.

Magnetizing current

No, the magnetizing current of a transformer does not lie in-phase with the applied voltage. It is slightly lagging behind the applied voltage by a small angle. This is because the transformer core has a small amount of resistance, which causes a small voltage drop across the core. This voltage drop is in-phase with the current, and it causes the current to lag behind the voltage by a small angle.

When the transformer core is saturated, the magnetizing current increases sharply. This is because the core becomes increasingly difficult to magnetize as it approaches saturation. The increased magnetizing current causes the transformer to lose efficiency and to produce more heat.

Inrush current

The inrush current of a transformer can cause a number of problems, including:

Overloading the transformer

Tripping the transformer's protective devices

Damaging the transformer's windings

Starting a fire

Even at no-load, a transformer draws a small amount of current from the mains. This current is called the magnetizing current. The magnetizing current is required to create the magnetic field in the transformer core. The magnetic field is necessary to induce the voltage in the secondary winding.

Exciting resistance and exciting reactance

The exciting resistance of a transformer is the resistance of the transformer core. The exciting reactance of a transformer is the reactance of the transformer's windings. The exciting resistance and exciting reactance together form the transformer's impedance.

Transformers are not designed to operate in the saturated region. The saturated region is a region where the core is unable to produce any additional magnetic flux. This can cause a number of problems, including:

Increased magnetizing current

Decreased efficiency

Increased heat generation

Transformers are designed to operate in the linear region, where the core is able to produce a linear relationship between the applied voltage and the induced voltage. This allows the transformer to operate efficiently and to produce the desired amount of power

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Answer:

Changes of state are physical changes in matter. They are reversible changes that do not change matter's chemical makeup or chemical properties. For example, when fog changes to water vapor, it is still water and can change back to liquid water again.

Suppose the boy first runs a distance of 100 metres in 50 seconds in going from his home to the shop in the East direction, and then runs a distance of 100 metres again. in 50 seconds in the reverse direction from the shop to reach back home from where he started (see Figure).

then The speed of the Boy is 2 m/s

Velocity of the boy is 0 m/s

The speed is given as total distance travelled divided by total time.

Speed = Distance/Time = 200/100 = 2 m/s

The velocity is displacement over time,

velocity = displacement/time

velocity = 0/100 = 0 m/s

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Answer:

A

Explanation:

It depends on the scale of the volcanic eruption. A smaller eruption may only affect the nearby area, but a large one can affect the whole world. For example, the Krakatoa eruption of 1883 created an ash cloud which lowered global temperatures and affected the climate for a year afterwards.

An explosive eruption by a single volcano can affect only the lifeforms living on the volcano. The correct option is B.

A volcano is an opening in the Earth's surface through which molten rock, ash, and gas can escape. Volcanoes are formed by the movement of tectonic plates, which create weak spots or vents in the Earth's crust where magma can rise to the surface.

Volcanoes can form in different ways, but most are formed at plate boundaries, where one tectonic plate is moving under another (subduction zone), or where two plates are moving away from each other (divergent boundary). When magma rises to the surface, it can form a volcanic cone or mountain over time.

There are three main types of volcanoes, based on their shape and the type of eruptions they produce:

(i)Shield volcanoes - broad, gentle slopes formed by lava flows that spread out over a wide area.

(ii)Stratovolcanoes (also called composite volcanoes) - tall, steep-sided cones formed by alternating layers of lava, ash, and other volcanic debris.

(iii)Calderas - large, basin-shaped depressions that form when a volcano collapses or erupts so forcefully that it empties its magma chamber.

Volcanoes can be active, dormant, or extinct. Active volcanoes are those that have erupted recently or are expected to erupt soon, while dormant volcanoes have not erupted in a long time but could still erupt in the future. Extinct volcanoes are those that have not erupted in thousands of years and are unlikely to erupt again.

Here in the question,

An explosive eruption by a single volcano can have a significant impact on the surrounding environment and local communities, but its effects are generally limited to the immediate vicinity of the volcano. The eruption may release ash, gases, and lava flows that can cause damage to nearby ecosystems and affect the health of humans and animals living in the area. However, the effects are unlikely to extend beyond the local region, let alone affect lifeforms throughout the world.

Therefore,  B. only the lifeforms living on the volcano, is the correct option.

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Answer:

The lifeguard should run approximately 17.752 meters along the shore, before, jumping in the water

Explanation:

The given parameters are;

The rate at which the lifeguard runs = 5 m/s

The rate at which the lifeguard swims = 1 m/s

The horizontal distance of the child from the lifeguard = 30 meters along the shore

The vertical distance of the child from the lifeguard = 60 meters along the shore

Let x represent the distance the lifeguard runs

We have;

The distance the lifeguard swims = √((30 - x)² + 60²)

Time = Distance/Speed  

The time the lifeguard runs = x/5

The time the lifeguard swims = √((30 - x)² + 60²)/1

The total time = √((30 - x)² + 60²) + x/5

The minimum time is given by finding the derivative and equating the result to zero, as follows;

Using an online application, we have;

d(√((30 - x)² + 60²) + x/5)/dx = 1/5 - (30 - x)/(√((30 - x)² + 60²)) = 0

Which gives;

1/5 - (30 - x)/(√(x² - 60·x + 4500) = 0

(30 - x)/(√(x² - 60·x + 4500)) = 1/5

5×(30 - x) = √(x² - 60·x + 4500)

We square both sides to get;

(5×(30 - x))² = (x² - 60·x + 4500)

(5×(30 - x))² - (x² - 60·x + 4500) = 0

25·x² - 1500·x + 22500 - x² + 60·x - 4500 = 0

24·x² - 1440·x + 18000 = 0

Dividing n=by 24 gives;

24/24·x² - 1440/24·x + 18000/24 = 0

x² - 60·x + 750 = 0

By the quadratic formula, we have;

x = (60 ± √((-60)² - 4×1×750))/(2 × 1) =

Using an online application, we have;

x = (60 ± 10·√6)/(2)

x = 30 + 5·√6 or x = 30 - 5·√6

x ≈ 42.25 m and x ≈ 17.752 m

At x = 42.25

Time = √((30 - 42.247)² + 60²) + 42.247/5 ≈ 69.69 seconds

At x = 17.75

Time = √((30 - 17.752)² + 60²) + 17.752/5 ≈ 64.79 seconds

Therefore, the route with the shortest time is when the lifeguard runs approximately 17.752 meters (rounded to three decimal places) along the shore, before, diving in the water

The  Newton's second law and kinematics we find the answer is:

Kinematics studies the movement of the body, which is a vector magnitude for which stone in a horizontal circular motion must be subjected to an acceleration that changes the direction of the speed even when its magnitude is constant, this acceleration is called centripetal.

              a = v / r²

Where a is the acceleration, v the speed anf r the radius of circle

Newton's second law states that force is proportional to the mass of the body and its acceleration

             F = m a

Where the bold indicate vectors, F is the force , m tha mass and a the acceleration.

Using these two expressions we see that the stone is subjected to a force directed towards the center of the circle. When this force becomes zero (breaks the rope) there is nothing to change the direction of the velocity at the point of rupture and the stone must follow with this velocity tangential to the point of rupture of the rope.

This is expressed in Newton's first law, which says:

In conclusion, we use the  Newton's second law and kinematics when the rope breaks the body is nine with constant velocity and with a direction tangential to the trajectory at the point.

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The 8 planets in order are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

The 8 planets in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. They are arranged in order according to their distance from the sun, starting with the planet closest to the sun and ending with the planet farthest away.

Mercury: Mercury is the closest planet to the sun and is also the smallest planet in our solar system. It is known for its extremely hot surface temperature due to its close proximity to the sun.

Venus: Venus is the second planet from the sun and is often referred to as the Earth's sister planet due to its similar size and density. However, it has a much hotter surface temperature due to the thick atmosphere of carbon dioxide that traps heat.

Earth: Earth is the third planet from the sun and is the only known planet with life. It has a unique atmosphere that contains oxygen, which is essential for the survival of living organisms.

Mars: Mars is the fourth planet from the sun and is known as the Red Planet due to its reddish appearance. It has a thin atmosphere and is also home to the largest volcano and deepest canyon in our solar system.

Jupiter: Jupiter is the fifth planet from the sun and is the largest planet in our solar system. It has a very strong magnetic field and is also known for its many moons and large red spot, which is a giant storm that has been raging for hundreds of years.

Saturn: Saturn is the sixth planet from the sun and is known for its distinctive rings, which are made up of countless small particles of ice and rock. It is also the least dense planet in our solar system and has many moons, including the largest moon in our solar system, Titan.

Uranus: Uranus is the seventh planet from the sun and is known for its unusual tilt, which causes it to rotate on its side. It is also the coldest planet in our solar system and is home to several unique features, including its ring system and numerous moons.

Neptune: Neptune is the eighth and farthest planet from the sun and is known for its strong winds and large, dark storms. It is similar in size and composition to Uranus and is also the only planet in our solar system that was not discovered using a telescope.

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In Florida, the entity responsible for investigating complaints against attorneys is The Florida Bar.

In Florida, the regulatory body responsible for overseeing the conduct and discipline of attorneys is The Florida Bar. When a client files a complaint against an attorney, The Florida Bar has the authority to investigate the allegations and take appropriate disciplinary action if necessary.

The Florida Bar operates a comprehensive disciplinary system to ensure that attorneys maintain high professional standards and adhere to ethical rules. Upon receiving a complaint, The Florida Bar's intake process begins, which involves reviewing the complaint and determining whether it falls within their jurisdiction. If the complaint is deemed appropriate for investigation, The Florida Bar will assign an investigator to gather relevant evidence and information.

Once the investigation is complete, The Florida Bar's grievance committee reviews the findings and decides whether there is sufficient evidence to proceed with disciplinary action. If disciplinary action is warranted, the matter may be resolved through various means, including a reprimand, probation, suspension, or, in severe cases, disbarment.

It is important to note that The Florida Bar's role is limited to investigating complaints against attorneys and taking disciplinary action within its jurisdiction. For non-attorneys or complaints unrelated to attorney misconduct, other appropriate entities or agencies in Florida may handle the investigation and resolution of the matter.

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The amplitude, restoring force and speed of an object undergoing simple harmonic  motion may have maximum magnitudes at the same instant of time.

Simple harmonic motion is a regular repeating motion. The acceleration of a simple harmonic motion is always directed towards the center of the motion.

There are three  quantities related to the object that can have maximum values at the same time and these are;

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a) The average annual evaporation from the catchment is approximately 180.29 mm/year.

b) The exact value of evapotranspiration from the irrigated area cannot be calculated due to missing information.

a) Average annual evaporation from the catchment in mm/year:

First, we calculate the total annual rainfall that is collected by the catchment area:

800,000,000 m² × 0.2 m = 160,000,000 m³/year

Since this is the only source of water for the catchment, the total amount of water available to the catchment area per year will be 160,000,000 m³/year.

We know that the average annual discharge at the outlet of a catchment is 0.5 m³/s, and since there are 31,536,000 seconds in a year, we can calculate the total volume of water that is discharged per year:

0.5 m³/s × 31,536,000 s = 15,768,000 m³/year

So, the total volume of water that is lost through evaporation per year will be:

160,000,000 m³/year - 15,768,000 m³/year = 144,232,000 m³/year

To convert this into millimeters, we need to divide this value by the area of the catchment in square meters, and then multiply by 1000 (since 1 m = 1000 mm):

144,232,000 m³/year ÷ 800,000,000 m² × 1000 mm/m = 180.29 mm/year

Therefore, the average annual evaporation from the catchment is approximately 180.29 mm/year.

b) Evapotranspiration from the irrigated area in mm/year:

Since we know that the size of the irrigated area is 10 km² = 10,000,000 m², we can calculate the total volume of water that is used for irrigation each year by multiplying this area by the amount of discharge that is lost as a result of the irrigation project:

10,000,000 m² × (0.5 m³/s - 0.175 m³/s) × 31,536,000 s/year = 4,422,480,000 m³/year

To calculate the amount of water that is lost through evapotranspiration from the irrigated area, we need to know the crop coefficient and the reference evapotranspiration (ET0) for the area. However, since this information is not provided in the question, we cannot calculate the exact value of evapotranspiration from the irrigated area.

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The first two exercises are of the uniform rectilinear movement (MRU) is a type of movement that is characterized by a constant speed and a rectilinear trajectory. In other words, an object moving with MRU always moves at the same speed and in a straight line.

The formula to calculate the speed in the MRU is simple: v = d/t, where:

v is the speed

d is the distance traveled

t is the elapsed time

It is also possible to use the formula s = vt to calculate the distance traveled, where s is the distance and t is the time.

It is important to note that velocity in the MRU is a vector that has a magnitude (the velocity itself) and a direction (the direction of motion). In the MRU, the direction of movement is always constant and coincides with the direction of the trajectory.

First we get the data:

V = Velocity = 25 m/s

T = time = ?

D = distance = 350 m

We already know that the MRU formula is V = d/t. But we must calculate the time, we clear the time, then:

t = d/v

We continue, substitute data and solve for time, then

t = d/v

t = (350 m)/(25 m/s)

t = 14 m

To travel 350 meters, it takes me 14 minutes.

To solve this, we first get the data:

V = speed = ?

D = distance = 50 m

T = time = 15 s

We know that the MRU formula is V = d/t. It is also the same formula for calculating velocity.

How should we calculate speed? It is not necessary to clear the formula, we substitute data and solve, then

V = d/t

V = (50 m)/(15 s)

V = 3.33 m/s

If I ride a bicycle 50 meters in 15 seconds, my speed is 3.33 meters per second (m/s).

As for the third exercise, it is an exercise of a rectilinear motion uniformly accelerated (MRUA), since Lance's speed increases constantly in time. A rectilinear motion uniformly accelerated (MRUA) is a type of motion in which an object moves in a straight line and its velocity changes uniformly in time due to constant acceleration. In this type of movement, the acceleration is constant, which means that the speed increases or decreases at a constant rate in each unit of time.

The MRUA is a fundamental concept in physics and is used to describe many phenomena, from free-falling objects to moving vehicles. Uniformly accelerated rectilinear motion is described mathematically by a series of equations, relating position, velocity, acceleration, and time.

One of the most important equations in the MRUA is the velocity equation, which relates the final velocity (Vf), the initial velocity (Vi), the acceleration (a) and the time (t). The velocity equation can be expressed as:

This equation shows how the final velocity of an object in an MRUA depends on its initial velocity, acceleration, and elapsed time.

Another important equation in the MRUA is the position equation, which relates the final position (x), the initial position (x0), the initial velocity (Vi), the acceleration (a) and the time (t).

The position equation can be expressed as:

This equation shows how the position of an object in an MRUA changes as a function of time, initial velocity, acceleration, and initial position.

First we get the data, this is the first step to start solving:

Vf = Final speed = 12 m/s

Vo = Initial velocity = 2 m/s

t = time = 12 s

a = acceleration = ?

The velocity equation can be expressed as:

Vf = Vi + a * t.

We use this formula to clear the formula to calculate the acceleration,

We continue solving, now we substitute our data and solve:

a = (Vf - Vo)/t

a = (30 m/s - 2 m/s)/(12 s)

a = 2.33 m/s²

Its acceleration is 2.33 meters per second squared (m/s²).

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If bias is introduced intentionally, the scientist has breached the ethical norms of the research community. Option B is correct.

It is important for scientific research to be objective and unbiased, and any intentional introduction of bias goes against the principles of scientific integrity and ethics. Bias can arise from various factors, such as personal beliefs, funding sources, or the desire for a particular outcome.

The scientific community expects researchers to conduct their studies in an unbiased and objective manner, and to report their findings truthfully and accurately. Intentionally introducing bias can lead to misleading or false results, which can harm the scientific community and the public who rely on scientific research.

Therefore, it is crucial for researchers to maintain objectivity and avoid any intentional introduction of bias in their studies. Option B is correct.

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Answer:

x = 0.4 m

Explanation:

When a spring is stretched from its equilibrium position. Some energy is stored in the spring. This energy is called the elastic potential energy of the spring. The formula used to calculate the magnitude of this stored energy is given as follows:

P.E = (1/2)kx²

where,

P.E = Elastic Potential Energy Stored in the spring = 45 J

k = Spring Constant = 540 N/m

x = amount of stretching = ?

Therefore,

45 J = (1/2)(540 N/m)x²

x² = (45 J)(2)/(540 N/m)

x = √(0.167 m²)

x = 0.4 m

Answer:

0J

Explanation:

PE=mgh

PE=  1000kgx9.8m/s^2x0m

PE = 0J

Given data

*The half-life of iodine-131 is t = 8.07 days

*The amount of quantity left is N = 0.25 g

*The number of days is T = 40.35 days

The expression for the radioactivity decay is given as

Substitute the values in the above expression as

Answer:

See below

Explanation:

40.35 days / (8.07 day per half life) = 5 half lives

.25 = x ( 1/2)^5

.25 / ( 1/2)^5 = x = 8 gm originally

If the total work is 3/4 j, then the total work is 3/4 j, the distance is 5 m, and the force required to push the box 5 m is 3/20 j/m, which is calculated using the formula: force (F) = work (W) / distance (D).

Total work = 3/4 j

Distance = 5 m

Work (W) = Force (F) x Distance (D)

Force (F) = Work (W) / Distance (D)

(W = 3/4 j ,D = 5 m)

F = W / D

F = (3/4 j) / (5 m)

F = (3/4) × (1 j/ 5 m)

F = 3/20 j/m

Hence, the total work is 3/4 j, the distance is 5 m, and the force required to push the box 5 m is 3/20 j/m, which is calculated using the formula: force (F) = work (W) / distance (D).

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Answer:

your girl is very very very very very very very pretty

Answer:

very very pretty

Explanation:

Among the given options, wood is not a conductor.

A conductor is a material that transmits energy or electrical charges easily. Conductors are materials that allow electrical energy to flow through them without any hindrance.

Metals like copper, aluminum, and iron are some of the most common conductors, as they have many free electrons that can transfer the electric energy from one end of the conductor to the other end.

Wood is an insulator. It does not allow electrical energy or electric charges to pass through it. This is because wood does not have many free electrons that can carry the charges. Hence, wood is not a conductor. The correct option among the given options is Wood.

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Answer:

I kinda dont remember the 1st law so search it up on

and it should tell u , but if u need any help from the

Answer:

"solve: given that F -12 N and time 4 seconds and let we have to find out the P.

F = 12 N

t = 4 s

p = ?

F = m×( v - u ) / t

12 = m×v / 4

m×v = 12× 4

p = 48 kg m/s

Linear momentum will be 48 kg m/s.

Explanation:

The phenomenon of wind blowing across suspended power lines causing them to vibrate at their natural frequency and producing audible sound waves is commonly referred to as an aeolian harp.

When wind flows across a power line, it sets up alternating areas of high and low pressure on either side of the line. These pressure differences can cause the line to vibrate back and forth, much like a guitar string being plucked. If the frequency of the wind-induced vibration matches the natural frequency of the power line, resonance can occur, resulting in a sustained and amplified sound wave.

The sound produced by an aeolian harp can vary in pitch and volume depending on the wind speed and direction, the size and shape of the power line, and other environmental factors. In some cases, the sound can be loud enough to be heard from a significant distance away, leading to complaints from nearby residents.

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The true airspeed will increase and true altitude will increase.

True airspeed is the airspeed of an aircraft relative to undisturbed air.

It's the aircraft speed relative to the airmass in which it's flying.

If the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspeed will increase and true altitude will increase.

Thus, the true airspeed will increase and true altitude will increase.

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Answer:

reflection of the moon, or just reflection

Explanation:

when the sunlight hits the moon, it refects back to earth making the moon appear to glow          

Answer:

reflecting

Explanation:

the sun's light reflects off the moon, making the moon visible

The number of Neon’s p-orbitals that are completely filled in its ground state is 3.

In Neon's case, since its p-orbitals are located on the second energy level, it contains a total of three p-orbitals 2px, 2py and 2pz and all three of them are filled as there are 4 electrons in s orbital and in total of 6 electrons in its p-orbital, thus completely filling it.

This configuration with all the orbitals completely filled also makes it a noble gas. It is due to the fact that it has no extra orbital to exchange electron from other element and form a bond.

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The volume of the liquid sample is given as 1.70 L. We need to convert this to milliliters (ml) as the density is given in grams per milliliter (g/ml). We know that 1 L = 1000 ml. Therefore, the mass of the 1.70 L sample of liquid with a density of 0.921 g/ml is 1565.7 g.

To find the mass of the liquid sample, we can use the formula:
Mass = Density x Volume
Volume = 1.70 L x 1000 ml/L = 1700 ml
Now, we can substitute the values into the formula:
Mass = 0.921 g/ml x 1700 ml
Mass = 1565.7 g
Therefore, the mass of the 1.70 L sample of liquid with a density of 0.921 g/ml is 1565.7 g.
In conclusion, the mass of the liquid sample is found by multiplying the density of the liquid with the volume of the liquid sample. The given density of the liquid in g/ml was converted to ml to match the given volume of the sample. The mass of the sample was calculated to be 1565.7 g.
To find the mass of a 1.70-liter sample of a liquid with a density of 0.921 g/mL, you can use the formula:
Mass = Volume × Density
First, we need to convert the volume from liters to milliliters (1 L = 1000 mL):
Volume = 1.70 L × 1000 mL/L = 1700 mL
Next, we can calculate the mass:
Mass = 1700 mL × 0.921 g/mL = 1565.7 g
So, the mass of the 1.70-liter sample of the liquid is approximately 1565.7 grams.

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