How do interest groups and PACs keep us from
our democratic principles? How do they defeat democracy? Look at picture for the question please

Given,

The weight, W = 190 N

The height, H = 45 m

The potential energy is calculated by the formula,

Calculate the potential energy by substituting the given values.

Thus, the potential energy is 8,550 Joules.

Answer:

1000

Explanation:

Acceleration is greatest for a satellite in an elliptical orbit when it is closest to Earth.

According to Kepler's second law, a satellite in an elliptical orbit sweeps out equal areas in equal time intervals. This means that the satellite covers more distance in a given time when it is closer to Earth.

The acceleration of a satellite in orbit is determined by the gravitational force exerted by Earth. Since gravitational force decreases with distance, the satellite experiences a stronger gravitational force when it is closer to Earth. As a result, the acceleration of the satellite is greatest when it is closest to Earth.

Therefore, the statement "Acceleration is greatest for a satellite in an elliptical orbit when it is closest to Earth" is correct.

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If one rolls a bowling ball down the alley at 5 m/s, then it has a kinetic energy of 62.5 joules when rolled down the alley at 5 m/s, which is calculated by using the formula kinetic energy (KE) = (1/2) × mass × \(velocity^2\)

kinetic energy of an object is given by the formula,

Kinetic Energy (KE) = (1/2) × mass × \(velocity^2\)

 Here, given the mass of the bowling ball is 5 kilograms,

KE = (1/2) × mass × \(velocity^2\)

KE = (1/2) × 5 kg × \((5 m/s)^2\)

KE = 62.5 J

Hence,  it has a kinetic energy of 62.5 joules when rolled down the alley at 5 m/s.

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The question is incomplete, complete question is below

you roll a bowling ball down with mass 5Kg the alley at 5 m/s. How much kinetic energy does it have?

The disease that causes the conjunctiva to appear white due to iron deficiency is called  "Conjunctival Pallor."

A disease that causes the conjunctiva to appear white due to iron deficiency is called "Conjunctival Pallor." Iron deficiency can lead to a condition called anemia, which is characterized by a decrease in the number of red blood cells or a decrease in the amount of hemoglobin in the blood.

When iron levels are low, it affects the body's ability to produce healthy red blood cells, leading to a paleness of the conjunctiva.

The conjunctiva normally appears pink due to the presence of blood vessels, but in cases of iron deficiency, the lack of iron causes the conjunctiva to lose its normal color and appear pale or white.

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The subsequent current in the series RLC circuit is given by the equation: i(t) = I * cos(5t - Φ), where I is the amplitude of the current and Φ is the phase angle.

To find the subsequent current, we need to calculate the amplitude (I) and the phase angle (Φ) of the current.

First, let's calculate the resonant frequency (ω) of the circuit:

ω = 1 / √(LC) = 1 / √(10 * 10^(-2)) = 1 / √1 = 1 rad/s.

The applied voltage can be written as E(t) = E * cos(ωt), where E is the amplitude of the voltage.

Comparing this with the given voltage E(t) = 200 * cos(5t), we can equate the angular frequencies: ω = 5.

Now, let's find the impedance (Z) of the circuit:

Z = √(R^2 + (Xl - Xc)^2),

where R is the resistance, Xl is the inductive reactance, and Xc is the capacitive reactance.

R = 20 Ω

Xl = ωL = 1 * 10 = 10 Ω

Xc = 1 / (ωC) = 1 / (5 * 10^(-2)) = 20 Ω

Plugging in these values, we get:

Z = √(20^2 + (10 - 20)^2) = √(400 + 100) = √500 ≈ 22.36 Ω.

The amplitude of the current (I) can be calculated using Ohm's Law:

I = E / Z = 200 / 22.36 ≈ 8.94 A.

The phase angle (Φ) can be found using the relationship between resistance, inductive reactance, and capacitive reactance:

tan(Φ) = (Xl - Xc) / R = (10 - 20) / 20 = -0.5.

Therefore, Φ ≈ -0.464 rad.

The subsequent current in the series RLC circuit is given by i(t) = 8.94 * cos(5t + 0.464) A.

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Answer:

for a cell to produce a current the cell electrodes of the cell must have a potential difference option A is the correct answer

Answer:

2.53m/s

Explanation:

Initial momentum in a system= Final momentum in a system

65kg*3m/s+12kg*0m/s=(65kg+12kg)*v

195kgm/s=77kg*v

v=2.53m/s

U is represent is Speed .

What is Speed?

Measuring is the most important scientific concept. Many different types of quantifiable quantities can be measured using base or physical fundamental units. One such quantifiable quantity is speed, which computes the proportion of a moving object's distance travelled to its travel time. In this session, let's examine speed in further detail. An object is considered to be moving at uniform speed if it covers the same distance in the same period of time.

An object is considered to be moving at variable speed when it covers a varying distance at regular intervals of time.

Typical speed: The consistent speed determined by the ratio of the overall distance travelled by an object to the total amount of time it takes to go is known as average speed.

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To calculate the density of a substance, its mass and volume has to be determined. So that:

i. For the milk in the carton, its mass and volume should be known.

ii. For the two objects given in the question, their individual masses and volumes have to be determined.

Density of a substance (ρ) is the rate of the mass (m) of the substance to its volume (V). It is measure in kg/\(m^{3}\).

i.e ρ = \(\frac{m}{V}\)

The density of a substance can be determined once the mass and its volume have been accurately measured.

1. How to measure the density of the contents of a milk carton.

a. Determine the mass of the milk carton with its content.

b. Determine the mass of the milk carton when empty.

c. Subtract the mass of the milk carton when empty from the mass of the carton with its content. This will give the mass of the milk in the carton.

d. Using a beaker, measure the volume of the milk.

e. Divide the mass of the milk by its volume to determine its density.

2. How to measure the densities of two objects of equal mass.

a. Fill an Eureka's can or a beaker with sprout with water to its brim.

b. Slowly drop the mass into the beaker with water so as to collect the volume of the liquid displaced into another beaker.

c. The volume of the liquid displaced is the volume of the mass.

d. Divide the mass of the object by its volume to determine its density.

NB: These procedures are observed to determine the densities of the two object individually.

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Answer:

B. pitch of the sound is the answer <333

(a) The magnitude of the total force provided by both posts is 1,068.2 N.

(b) The force the post that is closest to the painter push upward on the board is 710.9 N.

The magnitude of the total force provided by both posts is calculated as follows;

sum of the upward force = sum of downward force

total upward force provided by the post = weight of boar + weight of the painter

total upward force provided by the post = (27 x 9.8) + (82 x 9.8)

total upward force provided by the post = 1,068.2 N

The force the post that is closest to the painter push upward on the board is calculated as follows;

the total downward weight is distributed as follows;

= ¹/₂ (weight of board) + (5.5 - 1.55) / (5.5) x (weight of the painter)

= 0.5 (27 kg x 9.8 m/s²)  +  0.72 (82 kg  x 9.8 m/s²)

= 710.9 N

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Roll a bowling ball off the edge of a table. As it falls, its horizontal component of motion would remain constant .

So, the correct answer is B.

The horizontal component of its motion, which is initially set by the rolling speed, remains constant during the fall because there is no external horizontal force acting on the ball, such as air resistance. On the other hand, the vertical component of its motion increases due to the force of gravity acting on the ball. This results in a parabolic trajectory as the ball falls.

The horizontal motion remaining constant is in accordance with Newton's first law of motion, which states that an object in motion will continue at a constant velocity unless acted upon by an external force.

Hence,the answer of the question is B.

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As the acceleration of gravity is less on the moon than on the Earth, thus the resonant frequency of the pendulum will be less on the moon.

Explanation:

The acceleration due to gravity is less on the moon than the gravitational acceleration on the earth. It is required to examine how the resonant frequency of a pendulum is changed on the moon compared to the earth.

We know that the resonant frequency is dependent on the acceleration of gravity.

\($f=\frac{1}{2 \pi} \sqrt{\frac{g}{l}}$\) where g is the acceleration due to gravity and l is the length of the string.

From the above equation, it is clear that the resonant frequency is directly proportional to the square root of the acceleration due to gravity.

The gravitational acceleration on the moon is less than that on the earth.

Therefore the resonant frequency of the pendulum on the moon is less than that on the earth.

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As base level is approached by a stream, the ability of a stream to erode its bed decreases (Option B).

This is because the base level is the lowest point to which a stream can erode its bed, and once it reaches this point, the stream can no longer erode its bed any further. In other words, the stream has reached its maximum capacity to erode its bed.
Base level is the point where the stream meets a larger body of water, such as a lake or the ocean. The water in the larger body of water resists erosion, so the stream can no longer erode its bed beyond the base level.
It is important to note that base level can either be a temporary or permanent feature. For example, if a dam is built on a stream, it can create a temporary base level that can be changed if the dam is removed. On the other hand, if a stream flows into the ocean, the base level is a permanent feature.
In summary, as a stream approaches base level, its ability to erode its bed decreases because it has reached its maximum capacity to erode its bed. Base level can be either a temporary or permanent feature and is the lowest point to which a stream can erode its bed.

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A parametrization of a curve in the xy plane is a method of expressing the coordinates of each point on the curve as functions of a single parameter.

A parametrization of a curve in the xy plane is a method of expressing the coordinates of each point on the curve as functions of a single parameter. When a curve is given in terms of parametric equations, it is possible to define the curve using a set of parametric equations.

A curve is defined as a continuous function of at least one variable. A curve in the xy-plane is a graph that consists of a set of points (x,y), where x and y are real numbers.

A parametric curve is a curve that is defined using parametric equations, which are equations that express the coordinates of each point on the curve as functions of a single parameter. The parameter is usually denoted by t, but it can be any letter or symbol.

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(a)  If the mass of the blob is reduced by half, the new period of oscillation will same as the initial.

(b) The new period of oscillation on Pluto is 4 times the period of oscillation on Earth.

The new period of oscillation of the pendulum is calculated as follows;

T = 2π √ ( L / g )

where;

From the equation above we can see that the period of a pendulum does not depend on the mass of the bob, but only on the length of the string.

Hence, the new period of oscillation will be same value as the initial.

The new period of oscillation on Pluto when the gravity of Pluto is 1/16 of Earth is calculated as;

T' =  2π √ (L/g/16)

T' = 2π √ ( 16L/g )

T' = 4 [ 2π √ (L/g) ]

T' = (4T)

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The new orbital speed after friction from the earth's upper atmosphere is 8674.15 m/s.

When the work done by a force does not depend on the choice of path, the force is called the conservative force. Some examples are a gravitational force, elastic spring force and electric force. On the other hand, when the work done by a force relies on the choice of the path of the motion, it is called non-conservative force.

The net work done by non-conservative force is W = ΔK + ΔP ----(1)

Given that, work done W = -7.5 * 10⁹ J

Change in kinetic energy = (Kf - Ki)

Final kinetic energy Kf = 1/2* m * Vf²

Initial kinetic energy Ki = 1/2* m * Vi²

Mass of the satellite m = 848 kg

Vf = Final speed

Vi = Initial speed = 9640 m/s

Change in gravitational potential energy ΔP = 0

Substituting the values in (1),

1/2* m (Vf² - Vi²) = W

1/2 * 848( Vf² -9640²) = W

Making Vf as subject,

Vf = √( 2W/m + Vi²)

⇒ √( -2* 7.5 * 10⁹/848 + 9640²)

⇒ 8674.15 m/s

Thus, the final speed decreases due to friction.

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The acceleration of the tennis ball just before it starts to fall down is approximately -9.8 m/s², indicating that its velocity is decreasing as it reaches the top of its trajectory.

When the tennis ball reaches its highest point, just before it starts to fall down, its velocity momentarily becomes zero. At this instant, the ball experiences an acceleration due to the force of gravity. In the absence of any other forces, this acceleration is equal to the acceleration due to gravity, denoted by "g."

On Earth, the average value for acceleration due to gravity is approximately 9.8 m/s². However, it's important to note that this value can vary slightly depending on factors such as altitude and location.

Since the ball is at its highest point, its acceleration is directed downward, opposite to its initial velocity. The acceleration due to gravity acts as a constant force that causes objects to accelerate toward the Earth's center. Therefore, the acceleration of the tennis ball just before it starts to fall down is approximately -9.8 m/s².

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The Inverse Square Law applies to Radiation. It states that the intensity of any radiation source is inversely proportional to the square of the distance from the source.

I would rather call it “an inverse square law”. Some things vary inversely as the square of something (usually distance) and some things don’t.

For instance, the quantity of light energy per second falling on a tiny area* is inversely related to the square of the distance from the source if a point light source emits light uniformly in all directions. The energy per second will decrease by four times with every twofold increase in distance for a certain area, and nine times with every threefold increase in distance. (Ideally, the area should be a sphere centered on the point source to make the distance clear; nonetheless, an approximate solution is a tiny plane area perpendicular to the line from the point source.) Therefore, light obeys the inverse square law (at least in Euclidean space).

The gravitational and electrical forces are some examples of entities that adhere to the inverse square law. On the other hand, gravitational and electrical potentials adhere to an inverse rule, whereby the potential must be reduced by a factor of two times the distance.

Thank you,

Eddie

The inverse square law states that the intensity or strength of a physical quantity decreases in proportion to the square of the distance from the source.

The inverse square law is expressed as:

Intensity = k / (distance)²

As you walk further from the source, the light from a point source loses intensity as it spreads out across a wider region.

The square of the distance between two objects' centers determines how much gravity there is between them. The gravitational pull between two things lessens as they are pulled apart more.

As you get further from the source of the music, the sound waves become less intense.

Inverse square law governs the strength of the magnetic and electric fields surrounding a charged particle or a wire carrying current.

An important tenet of physics is the inverse square law, which can be used to explain a variety of natural events.

Therefore,  the intensity or strength of a physical quantity decreases in proportion to the square of the distance from the source.

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In the spectral sequence of star types, each category has been divided into ten intervals. The sun is classified as a G2 star.

The spectral sequence of star types is a sequence of star classes that are characterized by their spectra (the range of electromagnetic radiation they produce). The sequence is arranged in alphabetical order and is divided into seven main categories (O, B, A, F, G, K, M), with each category divided into ten subcategories, ranging from 0 to 9, with 0 being the hottest and 9 being the coolest. The Sun is classified as a G2 star, which is a yellow dwarf star, G2 is a subcategory of the G class, which is, in turn, a subcategory of the main G-K-M spectral class. The Sun's surface temperature is about 5,500 degrees Celsius (9,932 degrees Fahrenheit), and it has a yellow color, hence its classification as a yellow dwarf star.

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Dont know the answer but have a good day :)

The potential difference between the charged parallel plates is 999 volts.

Difference that might exist between any two points The amount of work required to move a unit positive charge along any path from one point to another without accelerating is referred to as the electric field.

The acceleration of the electron can be related to the electric field between the charged parallel plates using the equation:

a = eE / m

E = am / e

E = (1.75 x \(10^1^4\)) x (9.11 x \(10^{-31\)) / (1.6 x \(10^{-19\) )

E = 9.99 x \(10^4\) N/C

The potential difference between the plates can be calculated using the equation:

V = Ed

V = (9.99 x \(10^4\) N/C) x (0.01 m)

Simplifying this expression, we get:

V = 999 V

Thus, 999 volts is the potential difference between the charged parallel plates.

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Using the Hubble Space Telescope in orbit to take a photo of Titan. The correct answer is d.

The other options - using instruments on the Huygens spacecraft to take pictures as it was descending, using an infrared camera aboard Cassini to take images of the surface in infrared, using a radar instrument to penetrate the smog in Titan's atmosphere - are all methods by which astronomers have learned about the surface of Titan.

The Hubble Space Telescope, on the other hand, is not capable of taking photographs of the surface of Titan, as it is too far away and its resolution is not high enough to resolve features on the surface of the moon.  The correct answer is d.

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Answer:

density is the correct answer

Explanation:

Answer:

Its the 2nd law of motion

Explanation:

Because it talks about force and acceleration

Throwing a ball with more force to increase acceleration is an example of Newton’s 2nd law of motion.

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