How are representative democracies and direct democracies similar?


In both, elected officials meet to make laws.

The power lies with the people in both types of government.

Both types of government work well in countries with large populations.

In both, citizens often represent themselves in voting on government decisions.


BRAINLYIST IS THE REWARD

The force exerted by the elevator on the man is 0N if a man weight is 800N.

We know very well for an elevator which is rising upward,its acceleration is given by the formula,

Net acceleration=g+a where g is the acceleration due to gravity and a is acceleration of elevator.

We know that g= 9.8m/sec² if we assume downward direction as positive direction, now we have given that value of a=-9.8m/sec².

Net acceleration is = 9.8 + (-9.8)=0m/sec²

Now, we know that according to newton second law of motion -. The acceleration of the body is straightforwardly relative to the net power following up on the body and conversely corresponding to the mass of the body. This really intends that as the power following up on an article is expanded, the speed increase of the item is expanded.

In other words,we have F=ma

where m is the mass of the body and a is the acceleration of the body.

We have a=0

So,F=m×0

=>F=0N

Hence, exerted force is 0N.

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Explanation:

Given parameters:

Distance hopped  = 84m

Displacement  = 84m due east

Time  = 7s

Unknown:

Speed of kangaroo  = ?

Velocity of kangaroo  = ?

Solution:

To solve this problem,

    Speed  = \(\frac{distance}{time }\)   = \(\frac{84}{7}\)  = 12m/s

  Velocity  = \(\frac{displacement}{time}\)   = \(\frac{84}{7}\)   = 12m/s due east

Answer:

2 sec

Explanation:

time taken = \(\frac{v-u}{a} = \frac{12-7}{2.5} = 2\)

When the velocity of an object changes, it is acted upon by a force

Answer:

Since gravitational potential is generally defined to be zero at infinity

and gravity does work as an object moves from infinity in a gravitational field,  

(the potential becomes more negative)  the farther the satellite is from the attractive force the greater is its gravitational potential. Since point E is most distant from the attractive force it has the most gravitational potential.

The Gravitational potential energy connected to a planet's position within the gravitational field of a central object, such as a star or a larger planet, is referred to as its gravitational energy.

The gravitational potential energy is given by:

PE = -G × (M × m) ÷ r

Here, (G) is the gravitational constant, (M) is the mass of a planet, (m)  is the mass of a planet, and distance (r).

From the given figure, points E and A are the farthest.

Hence, at points E and A satellite have the most gravitational potential energy

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The charge in fig A is positive, in fig B is positive and in fig C is negative. this is given by the Fleming's left hand rule.

In magnetism and electromagnetic, the Fleming Left-Hand Rule and Fleming Right-Hand Rule are fundamental principles. They were created by John Ambrose Fleming in the late 19th century as an easy method of determining the direction of motion in an electric motor or the direction of electric current or electric positive charge in an electric generator. It is crucial to remember that these criteria only indicate the direction of the three parameters (magnetic field, current, and force) when the direction of the other two parameters is known and do not define their magnitude.

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Answer:

Nuclear reactors are the heart of a nuclear power plant. They contain and control nuclear chain reactions that produce heat through a physical process called fission. That heat is used to make steam that spins a turbine to create electricity.

Answer:

A nuclear power plant's heart is made up of nuclear reactors. They contain and regulate nuclear chain reactions, which produce heat via a physical process known as fission. This heat is converted to steam, which powers a turbine to generate energy.

Answer:

the heating method in here is conventional heating due to the warn air goes to the top bunk whereas the cold air sinks down

the critical angle for red light in diamond is 24.51°

critical angle for violet light in diamond is 24.01°.

given:

wavelength of red light λr =660nm

wavelength of violet light λv =410nm

refractive index for air=1

as the refractive index of red and violet colour in diamond is

Refractive index of red color nr= 2.407

Refractive index of violet color nv= 2.451

as it is mentioned that angle is critical angle,thus θr =90°

so,from Snell's law

n1sinθc=n2 sin 90°

Here,

n1 is the refractive index for incident medium

n2 is the refractive index for refractive medium

θc is the critical angle after which light starts reflecting internally

The critical angle for red light is here,n1=2.407, n2=1

n1sinθc=n2 sin 90°

2.407×sin θc=1×1

sin θc =(1/2.407)

θc=sin-1 0.415

θc=24.51°

Thus,the critical angle for red light in diamond is 24.51°

The critical angle for violet light is,

here,n1=2.451,n2=1

n1sinθc=n2 sin 90°

2.407×sin θc=1×1

sin θc= (1/2.451)

θc=sin-1 0.407

=24.01°

Thus,the critical angle for violet light in diamond is 24.01°.

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It takes approximately 1.2 seconds for the pop can to reach the ground after being dropped by the balloonist. To answer your question, we can use the kinematic equation is given below.
h = vi*t + 0.5*a*t²

we need to consider the initial conditions of the falling pop can. When the balloonist accidentally drops the can, it has an initial velocity equal to the upward velocity of the hot air balloon, which is 4.0 m/s. Also, the initial height of the can is 4.0 meters above the ground.

Since the can is now in free fall, it will be acted upon by gravity, which has an acceleration of -9.8 m/s² (negative because it's downward). We can use the following equation of motion to find the time it takes for the pop can to reach the ground:
h = vi*t + 0.5*a*t²
Where h is the height (4.0 m), vi is the initial velocity (4.0 m/s), a is the acceleration due to gravity (-9.8 m/s²), and t is the time we want to find.
Rearranging the equation for t, we get:
t = [(-2*h) / (vi - 0.5*a)]^(1/2)
Plugging in the given values:
t = [(-2*4) / (4 - 0.5*(-9.8))]^(1/2)
t ≈ 1.2 seconds

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Answer: Weight is a measure of the force of gravity pulling down on an object. It depends on the object's mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2, where F is the object's weight in Newtons (N) and m is the object's mass in kilograms.

Answer:gravity pulling down on an object

Explanation:

Answer:

Option A. a

Explanation:

Motion variables include:

1. Final velocity (vf).

2. Initial velocity (vi).

3. Time (t).

4. Acceleration (a)

5. Distance (x)

Considering the equation given in the question:

Δx = ½(vf + vi) t

We can see that the acceleration (a) is missing in the equation.

Relational operators can be used to compare both string variables and numeric variables.

Relational operators are versatile and can be used to compare both string variables and numeric variables. These operators allow us to perform various types of comparisons, such as checking for equality, inequality, greater than, less than, greater than or equal to, and less than or equal to.

When comparing string variables, the operators compare the lexicographic order of the strings based on their character values. Numeric variables, on the other hand, are compared based on their numerical values.

By utilizing relational operators, programmers can implement conditional logic and make decisions based on the results of the comparisons, enabling dynamic and efficient control flow in programming languages.

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To determine the voltage across the secondary coil of the transformer, we need to consider the turns ratio between the primary and secondary coils. The voltage across the secondary coil is half the voltage across the primary coil.

In this case, the turns ratio is given as 2:1, meaning there are two turns in the secondary coil for each turn in the primary coil.

Given that the AC source is connected to the primary coil, let's assume the voltage across the primary coil is Vp. Since the transformer is 100% efficient, we can apply the principle of conservation of energy.

According to the principle, the power in the primary coil is equal to the power in the secondary coil, neglecting any losses. Since power is given by the equation P = IV, where P is power, I is current, and V is voltage, we can write:

Power in the primary coil = Power in the secondary coil

(Vp × Ip) = (Vs × Is)

Where Vp is the voltage across the primary coil, Ip is the current flowing through the primary coil, Vs is the voltage across the secondary coil, and Is is the current flowing through the secondary coil.

Given that the turns ratio is 2:1, the current in the primary coil (Ip) will be twice the current in the secondary coil (Is).

Therefore, we can write:

(Vp × 2Is) = (Vs × Is)

Simplifying the equation:

Vp = 2Vs

So, the voltage across the secondary coil (Vs) is half the voltage across the primary coil (Vp).

In summary, the voltage across the secondary coil is half the voltage across the primary coil.

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In the speed-time graph of a car in the figure, the correct statement is, the distance traveled by car is 75 m. Thus, option C is correct.

Speed is the distance traveled by an object per unit of time. In the graph, speed is taken in the Y axis, and time in the X axis. In the speed-time graph, the acceleration of an object and the distance traveled by an object can be determined. In the speed-time graph, the acceleration is obtained by taking the slope. From the figure, the speed of the car decreases, and it is called deceleration. If the car has a constant speed, the graph has a line parallel to the X-axis.

The distance traveled by car is obtained by determining the area of the figure.  The area of the figure is a triangle.

Distance = Area of the triangle = 1/2 (base×height)

                                                    = (15×10) /2

                                                    = 75m

The distance traveled by car is 75m. The ideal solution is C.

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Answer:

2. Technician B only

Explanation:

Given that a starting system voltage drop test is being done. Technician A says the higher the voltage drop, the lower the resistance in the circuit. Technician B says a high-voltage drop in the cranking circuit wiring can cause slow engine cranking. Which technician is correct?

1. Technician A only

2. Technicia B only

3. Both technian

4. Neithr A nor B

According to ohms law, the current is directly proportional to the voltage and inversely proportional to the resistance.

Increase in voltage drop will surely cause increased in resistance in the circuit.

Therefore, Technician A is not correct.

A drop in voltage will surely reduce the efficiency of a machine which will cause slow engine cranking.

Therefore, Technician B is correct.

So the right answer is 2 only B is correct.

The kinetic energy that should be stored by a 1.0kg ball moving at 1.0m/s is 0.5 joules.

Since mass should be 1.0 kg

And, the velocity is 1.0 m/s

So, here the kinetic energy should be

= 1/2 * mv^2

= 1/2 * 1 * 1^2

= 1/2 *1 * 1

= 0.5 Joules

hence, The kinetic energy that should be stored by a 1.0kg ball moving at 1.0m/s is 0.5 joules.

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To calculate the Reynolds number (Re) for a baseball thrown through standard air, we need to know the velocity of the ball, its characteristic length, and the properties of the fluid through which it is moving.

Given:

- Velocity of the ball (V) = 89.0 mph

- Diameter of the ball (D) = 2.82 in

To calculate the velocity in SI units, we first convert 89.0 mph to meters per second:

V = 89.0 mph * 0.44704 m/s per mph = 39.8 m/s

To calculate the Reynolds number, we need to know the viscosity of air at the temperature and pressure of the baseball's flight. Assuming standard air conditions of 68°F (20°C) and 1 atm ,  the viscosity of air is approximately:

μ = 1.81 × 10^(-5) Pas

The Reynolds number can then be calculated as:

Re = (ρVD) / μ

Where:

ρ is the density of air, which we can assume to be at standard conditions of 1.225 kg/m^3

Substituting the values:

Re = (1.225 kg/m^3 * 39.8 m/s * 0.07176 m) / (1.81 × 10^(-5) Pa·s)

  = 1.34 × 10^5

Therefore, the Reynolds number (Re) for the baseball thrown by a pitcher at 89.0 mph through standard air is approximately 1.34 × 10^5.

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Here is your Answer:-

Ohm's Law

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship: I=V/R, where I is the current through the conductor in units of amperes, V is the voltage measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.

Conventional Domestic Fans.

Electric Heaters. The electric heaters are the common appliances used in winters throughout the world.

Electric Kettles and Irons. The electric kettle and irons have a lot of resistors in them.

Design of Electric Devices.

The diagram and information in the section "Stages of Photosynthesis" provide a coherent understanding of the light and dark reactions of photosynthesis.

The light-dependent reactions occur in the thylakoid membranes of the chloroplasts and are driven by light energy. The light energy is absorbed by pigments such as chlorophyll and converted into chemical energy in the form of ATP and NADPH. The light-dependent reactions also produce oxygen gas as a byproduct.

The ATP and NADPH produced in the light-dependent reactions are then used in the light-independent reactions, which occur in the stroma of the chloroplasts. The light-independent reactions, also known as the Calvin cycle, use carbon dioxide and the energy from ATP and NADPH to synthesize glucose and other organic compounds. The Calvin cycle does not directly require light, but it is dependent on the products of the light-dependent reactions.

Together, the light-dependent and light-independent reactions of photosynthesis form a coherent cycle that allows plants and other photosynthetic organisms to convert light energy into chemical energy in the form of glucose and other organic compounds. The diagram and information in the section "Stages of Photosynthesis" provide a clear visual and textual representation of this process, helping to develop a coherent understanding of the overall process of photosynthesis.

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If the wavelength is 0.57 m, then the speed of waves on the slinky is 1.71 m/s.

The speed of waves on the slinky (in m/s) for a 3.0 Hz continuous wave that travels on a slinky with a wavelength of 0.57 m can be calculated by multiplying the frequency of the wave by its wavelength. Mathematically, it can be expressed as;

Speed of waves on the slinky = Frequency × Wavelength

In this case, the frequency (f) of the wave is 3.0 Hz and the wavelength (λ) is 0.57 m

Therefore, the speed of waves on the slinky (in m/s) can be calculated as follows;

Speed of waves on the slinky = Frequency × Wavelength = 3.0 Hz × 0.57 m = 1.71 m/s

Thus, the speed of waves on the slinky is 1.71 m/s.

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Answer:

yes!

Explanation:

Ohm's law describes the relations among voltage, current and resistance. So that:

i. The resistance needed to generate the given current is 480 Ohm's.

ii. At medium speed, the resistance decreases while the current increases.

iii. The high speed requires large current but least resistance.

Ohm's law states that:  V = IR

where V is the voltage, I is the current and R is the resistance.

Thus from the given question, V = 120 V, and A = 0.25, so that:

R = \(\frac{V}{I}\)

  = \(\frac{120}{0.25}\)

R = 480 Ohm's

Therefore, the resistance required to generate a current of 0.25 A at low speed is 480 Ohm's.

Ohm's law explains that the voltage is proportional to current so that to generate greater amount of current, low resistance is required. Thus, at the medium speed, more current would be required so that the value of resistance to produce the current would be lesser than that at the low speed.

At higher speed, the value of resistance would reduce far below that attained in medium speed, so that more current would be produced. Thus the high speed requires large current but low resistance.

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The answer is 480Ω.

According to Ohm's Law, the required equation to find resistance is :

\(\boxed {R = \frac{V}{I}}\)

Then, by direct substitution, we get :

For medium and higher speeds, the resistance would have to decrease in order to allow for more current to reach the fan. For it to operate at the necessary speeds, the resistance would have to be less than 480Ω.

Answer:

W = 96.875 N

Explanation:

For this exercise let's use the law of universal gravitation

          F = \(G \frac{m M }{r^2}\)

we substitute this force in Newton's second law

          F = m a

          G \frac{m M }{r^2} = m a

          a = \(G \frac{M}{r^2}\)

This sidewalk we will call it gravity acceleration

           g₀ = a

the weight of a body is

         W₀ = m g₀

if we change the cario of r ’= 4r

          a’=  \(G \frac{M}{r'^2 }\)

          a ’= G \frac{M}{(4r)^2 }

           a' = \(G \frac{M}{r^2} \ \frac{1}{16}\)

          a ’=  \(\frac{g_o}{16}\)

therefore the weight of the body must be

           W = m g = \(m \ \frac{g_o}{16}\)

           W = W₀ / 16

            W = 1550/16

            W = 96.875 N

a) D2022 = $1.9975, D2023 = $2.27715, D2024 = $2.60554, D2025 = $2.98868, D2026 = $3.43243

b) Po = $13.63

c) Dividend yield = 13.85%, Capital gains yield = 74.52%, Expected total return = 88.37%. Dividend yield = 17.89%, Capital gains yield = -23.29%, Expected total return = -5.40%.

a) Dividend is the distribution of earnings to shareholders. Expected dividend for each year can be calculated as follows:

D2022 = D0 (1 + g) = $1.75 (1 + 0.14) = $1.9975

D2023 = D2022 (1 + g) = $1.9975 (1 + 0.14) = $2.27715

D2024 = D2023 (1 + g) = $2.27715 (1 + 0.14) = $2.6055415

D2025 = D2024 (1 + g) = $2.6055415 (1 + 0.14) = $2.98868161

D2026 = D2025 (1 + g) = $2.98868161 (1 + 0.14) = $3.432429195

b) The present value of dividends expected in 2022, 2023, 2024, 2025 and 2026 can be calculated using the following formula:

PVD = D / (1 + r)t

where

PVD = present value of dividends expected

D = dividend expected in a future year

t = number of years from now

r = required rate of return

PVD2022 = $1.9975 / (1 + 0.12)¹ = $1.77700934579

PVD2023 = $2.27715 / (1 + 0.12)² = $1.88843867485

PVD2024 = $2.6055415 / (1 + 0.12)³ = $1.99719364693

PVD2025 = $2.98868161 / (1 + 0.12)⁴ = $2.10928913223

PVD2026 = ($3.432429195 + ($3.432429195 * 1.05)) / (1 + 0.12)⁵ = $2.25661605368

The present value of the stock price that should exist at the end of 2026 can be calculated using the constant growth equation:

Po = D1 / (r - g)

where

Po = price of stock today

D1 = dividend expected at the end of 2026r = required rate of return

g = expected growth rate

Po = $3.60484320761

Total present value of all dividends expected plus the present value of the stock price at the end of 2026 can be calculated using the formula:

Total PV = PVD2022 + PVD2023 + PVD2024 + PVD2025 + PVD2026 + PoTotal PV = $1.77700934579 + $1.88843867485 + $1.99719364693 + $2.10928913223 + $2.25661605368 + $3.60484320761 = $13.6333900619

The value of the stock today, Po, is $13.63.

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Answer:

I’d say the air outside the hemisphere is more free than from the inside of the hemisphere.

Explanation:

hope this help!

Answer:

there is no spongy bone

Explanation: