A grid-connected photovoltaic (GCPV) system in three phases is connected to the utility grid via a single kWh meter. Sketch the complete wiring schematic diagram using the following information: Number of PV modules =48 (Each module has Pmp_stc =330 W; Voc_stc =40.7 V; Vmp_stc =34 V; Imp_stc =9.7 A) Number of inverters =2 (Each inverter has nominal AC power rating =8.0 kW,2MPPT each inverter; DC input voltage range of each MPPT=270 V…910 V)

Answer:

Please mark me as Brilliant

Explanation:

I shall solve both one by one

Case 1: 1 kg of water at 10° C

Let the final temperature be T° C , where T°C < 30°C.

Heat give out by 4.4 kg of water at 30° C to come down to T°C = 4400 g × 1 calorie/g/°C × (30- T)° C = (4400× 30 - 4400 T) calorie

Heat gained to raise temperature of 1kg of water at 10° to T° = 1000 g × 1 calorie/g/°C × (T -10)° C = 1000 T - 10,000) calorie

Heat gained = Heat lost

1000 T - 10,000 = 1,32,000 - 4400 T; ==> 54 00T = 1.42,000; T = 1,42,000/5400 = 26.3° C.

In case it is 1 kg of water at 10° C mixed with 4.4 kg of water at 30° C, the final temperature of the mixture would be T = 26.3° C.

Case 2: 1 kg of ice.

Ice is essentially at its melting point/freezing point ie at 0° C.

Let the temperature of mixture = T° C

Heat required to melt 1 kg (=1000 g of ice) at 0° C to water at 0° C = 1000 g × 80 calorie/g = 80,000 calorie

Heat require to raise temperature of 1000 g of water at 0° C to water at T° C = 1000g × 1 calorie/g/°C× (T -0)° C = 1000 T calorie

Heat gained = 80,000 + 1000 T

Heat lost by 4.4 kg of water at 30° C to cool to T° C = 4400 g × 1 calorie/g /° C × ( 30 - T)° C = 1,32,000 - 4400 T

Heat gained = Heat lost

80,000 + 1,000 T = 1,32,000 -4400 T

5400 T = 52,000/5400; ==> T = 9.63°C.

In case it is ice, the temperature of the mixture is T = 9.63° C.

Added: around 2 pm

The average angular speed of the bicyclist that travels around exactly half of the track in 100 s is 0.314 rad / s

ω = 2 π / T

ω = Angular speed

T = Time period

The time taken, t to complete half of the track is 10 s

T = 2 * t

T = 2 * 10

T = 20 s

ω = 2 * 3.14 / 20

ω = 0.314 rad / s

The speed of the object in rotational motion is called as angular speed. Just like the regular speed formula, this is also in terms of distance and time. But the distance is measured as θ whose value is taken in radians.

Therefore, the average angular speed of the bicyclist is 0.314 rad / s

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The kinetic energy of the horse and its jockey is 90480.6 Joules.

Kinetic energy is simply the energy an object or body possesses due to its motion.

It is expressed as;

Kinetic energy = 1/2 × mass × (velocity)²

Given the data in the question;

Plug the given values values into the above formula and solve for the kinetic energy.

Kinetic energy = 1/2 × mass × (velocity)²

Kinetic energy = 1/2 × 512kg × ( 18.8m/s )²

Kinetic energy = 1/2 × 512kg × 353.44m²/s²

Kinetic energy = 90480.64kgm²/s²

Kinetic energy = 90480.6J

Therefore, the kinetic energy is 90480.6 Joules.

Option D is the correct answer.

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Answer:

(Question) A city gets its electricity from a dam, where water is stored in a reservoir. How does the water provide the city with its power?

(Answer) Potential energy in the water becomes kinetic energy as it moves through turbines, which turn kinetic energy into mechanical energy that spins a generator, which changes mechanical energy into electricity.

(Question) An acorn rolls off a roof and falls to the ground. Which statement best describes the change in energy?

(Answer) The acorn’s potential energy decreases as its kinetic energy increases.

(Question) An airplane carries 320 passengers from Phoenix to Los Angeles flying at an average speed of 490 miles per hour. On the return flight, the plane carries 164 passengers and travels at the same average speed. What happens to the plane’s kinetic energy?

(Answer) On the return flight, the plane has less kinetic energy.

(Question) A racehorse is running at 42 miles per hour, equivalent to 18.8 meters per second. The horse and its jockey have a combined mass of 512 kilograms. How much kinetic energy do they have?

(Answer) 90,480.6 J

(Question) Which object has kinetic energy?

(Answer) balloon rising in the sky

(Question) Mr. Starr pushed a cart full of groceries to his car. After emptying the cart, he pushed it back to the store. He pushed the cart at a speed of 2 meters per second each way. Which is the best prediction?

(Answer) When it was empty, the cart had less kinetic energy.

(Question) A student fires a toy rocket into the sky. When does the rocket have the most potential energy?

(Answer) when the rocket reaches its highest point

(Question) What is the best description of one billiard ball hitting a second billiard ball?

(Answer) Most of the kinetic energy in the first ball is transferred to the second ball.

(Question) A roller-coaster car is at the top of a hill. The car and its passengers have a combined mass of 1,088 kilograms. If the hill is 62 meters tall, how much potential energy does the car have?

(Answer) 661,068.8 J

(Question) A roller-coaster is at the top of a 62-meter hill. The car and its passengers have a total mass of 1,088 kilograms. By the time the car reaches the bottom of the hill, its speed is 74 miles per hour (33 meters per second). How much kinetic energy does the car have at the bottom of the hill?

(Answer) 592,416 J

(Question) A diagram is drawn showing a swing set with a swing pulled backward prior to release. The diagram shows how the swing will move forward and then backward after it is initially released. At which point in the diagram is all of the energy gravitational potential energy?

(Answer) when the swing is pulled back prior to release

(Question) essay

(Answer) good luck

(Question) essay

(Answer) good luck

Explanation:

I just did the assignment

Answer:

10 :)

You have to divide the difference of speed and divide it by the time. So 100-20 would be 80, and if you divide that by 8 it would be 10.

Hope this helps.

Your bulk and weight would be different on a different planet compared to how they are on Earth.

The correct option is A.

This was the most basic characteristic of matter and is one of the essential building blocks of physics. The term "mass" refers to a body's total amount of matter. The kilo is the SI unit of mass (kg). A body's bulk remains constant throughout time.

Scientists frequently use balances to quantify mass. Using an electronic balance or a beam balance, one may directly determine the mass of solids. A liquid's mass may be calculated by measuring its volume and using the density table to determine the liquid's density. The kg is the SI mass unit (Kg).

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The complete question is -

Compared to their values on Earth, on another planet your

(a) mass and weight would both be the same.

(b) mass would be the same but your weight would be different.

(c) weight would be the same but your mass would be different.

Answer: hello the image is missing but am able to provide you with an answer to your but I am unable to attach the image

Explanation:

Molecules at point A compared to molecules at point B shows that they are

The movement of molecules is caused by the application of energy in various forms especially thermal energy

Answer:

The answer is A!

Explanation:

Got it right on edge 2021 :>

A) The frictional force can be calculated as: 177.18 N.

B) The acceleration of the car is  0.197 m/s^2.

C)  It takes approximately 15.23 seconds for the car to come to a complete stop.

Assuming that the coefficient of friction between the tires and the water is approximately 0.02, the frictional force between the tires and the water can be calculated as follows:

Frictional force = coefficient of friction * contact area * pressure

The pressure can be calculated as the weight of the car divided by the contact area:

Pressure = weight / contact area = (900 kg * 9.81 m/s^2) / 0.4 m^2 = 22,147.5 Pa

Therefore, the frictional force can be calculated as:

Frictional force = 0.02 * 0.4 m^2 * 22,147.5 Pa = 177.18 N

The acceleration of the car can be calculated using Newton's second law:

Net force = mass * acceleration

The net force acting on the car is the frictional force, since the wheels are locked and there is no other external force acting on the car. Therefore:

Frictional force = mass * acceleration

Acceleration = Frictional force / mass = 177.18 N / 900 kg = 0.197 m/s^2

The time it takes for the car to come to a complete stop can be calculated using the kinematic equation:

Vf^2 = Vi^2 + 2 * acceleration * distance

where Vf is the final velocity (0 m/s), Vi is the initial velocity (15 m/s), and distance is the distance the car travels before coming to a stop. Solving for distance:

distance = (Vf^2 - Vi^2) / (2 * acceleration) = (0 m/s - (15 m/s))^2 / (2 * 0.197 m/s^2) = 114.22 m

The time it takes for the car to travel this distance can be calculated using the kinematic equation:

distance = (Vi + Vf) / 2 * time

Solving for time:

time = 2 * distance / (Vi + Vf) = 2 * 114.22 m / (15 m/s + 0 m/s) = 15.23 s

Therefore, it takes approximately 15.23 seconds for the car to come to a complete stop.

The given question is incomplete, the complete question is

A car of mass 900 kg is driving along a horizontal road at 15 m/s when the brakes are applied and the wheels lock. The car glides on a thin 0. 003 mm layer of water with a contact area of 0. 4 m2. Calculate

the following:

A) The frictional force between the tires and the water.

B) The acceleration of the car.

C) The time it takes for the car to come to a complete stop.

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The radius of the ball is 13 cm. There seems to be an error in writing the hole and the depth of the ball, it should be 24 cm and 8 cm.

The Pythagoras theorem explains the relationship between the lengths of the sides of a right triangle.

To determine the radius of the ball, we can use the Pythagorean Theorem, namely:

c² = a² + b²

Let the solid ball have a radius of R cm.

From the diagram:

AC = 24 cm

So, AE = ½ AC = 12 cm

And, BE = 8 cm

From the triangle OEC, we get: OE² + EC² = OC²

⇒ (R - 8)² + 12² = R²

16 R = 208

R = 13 cm

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Given

The intensity is

To find

The relative intensity

Explanation

The relative intensity is given by

Here,

Thus,

Conclusion

The relative intensity is 96.6 dB

The current passing through a series combination of resistors does not change as it goes through each successive resistor.

In a series combination of resistors, the current passing through the circuit remains the same throughout the circuit. This is known as Kirchhoff's Current Law, which states that the total current entering a junction is equal to the total current leaving the junction.

When the current passes through each resistor in the series, the resistance of each resistor impedes the flow of the current. This means that the voltage across each resistor is different, but the current flowing through each resistor remains the same.

In other words, the current does not change as it goes through each successive resistor in the combination, but the voltage across each resistor changes proportionally to its resistance. The total voltage across the series combination of resistors is equal to the sum of the voltage drops across each individual resistor.

The relationship between current, voltage, and resistance is described by Ohm's Law, which states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.

Instead, the voltage across each resistor changes proportionally to its resistance, and the total voltage across the series combination of resistors is equal to the sum of the voltage drops across each individual resistor.

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Answer:

The answer should be south

Explanation:

Because it has more force to the south then to the north, west and east are the same so (40N South)

Little Red will arrive at her grandmother's house at 5 PM :)

30/10 = 3

2 + 3 = 5

The tangential speed of a lug nut on a wheel of a car will be 4.68 m/s

Given:

Distance of lug nut = 0.114 m

wheel is rotating at speed = 6.53 rev/sec

To Find:

tangential speed of a lug nut

Solution: Tangential velocity is the linear speed of any object moving along a circular path. A point on the outside edge of a turntable moves a greater distance in one complete rotation than a point near to the center

Vr = r.ω

(0114 m)(41.03 rad/s) = Vr

Vr = 4.68 m/s

Hence, tangential speed of lug nut on wheel of car is 4.68 m/s

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When the low temperature reservoir has its temperature lowered in an ideal heat engine, the engine efficiency increases. The correct answer is (D).

Here's a step-by-step explanation:

1. The efficiency of a heat engine is determined by the temperatures of the high and low temperature reservoirs. The formula for the efficiency of an ideal heat engine, based on the Carnot cycle, is given by:

Efficiency = 1 - (T_low / T_high)

where T_low is the temperature of the low temperature reservoir and T_high is the temperature of the high temperature reservoir.

2. When the temperature of the low temperature reservoir (T_low) is lowered, the ratio (T_low / T_high) becomes smaller.

3. As a result, the value inside the parentheses (1 - ratio) increases, which means the overall efficiency of the heat engine increases.

So, with the temperature of the low temperature reservoir lowered and no other changes made, (D) the efficiency of the ideal heat engine increases.

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the speed of the second marble immediately after the collision is 1.85 m/s.

We can use the conservation of momentum and the conservation of kinetic energy to solve this problem.

A) Using the conservation of momentum:

m1v1i + m2v2i = m1v1f + m2v2f

where

m1 = mass of the first marble = 48 g = 0.048 kg

v1i = initial velocity of the first marble = 1.9 m/s

m2 = mass of the second marble = 29 g = 0.029 kg

v2i = initial velocity of the second marble = 0 (at rest)

v1f = final velocity of the first marble (what we need to find)

v2f = final velocity of the second marble (what we need to find)

Applying conservation of momentum, we get:

0.048 kg x 1.9 m/s + 0.029 kg x 0 m/s = 0.048 kg x v1f + 0.029 kg x v2f

Simplifying the equation, we get:

0.0912 kg m/s = 0.048 kg x v1f + 0 kg m/s

Thus, v1f = (0.0912 kg m/s) / (0.048 kg) = 1.9 m/s

Therefore, the speed of the first marble immediately after the collision is 1.9 m/s.

B) Using the conservation of kinetic energy:

(1/2) m1 v1\(i^2 + (1/2) m2 v2i^2\) = (1/2) m1 v1\(f^2 + (1/2) m2 v2f^2\)

Applying the conservation of kinetic energy, we get:

(1/2) x 0.048 kg x\((1.9 m/s)^2 + (1/2) x 0.029 kg x (0 m/s)^2\)= (1/2) x 0.048 kg x v1f^2 + (1/2) x 0.029 kg x v2f^2

Simplifying the equation, we get:

0.08198 J = 0.024 kg x v1\(f^2\) + 0.0 J

Thus, v1\(f^2\) = (0.08198 J) / (0.024 kg) = 3.4158\(m^2/s^2\)

Taking the square root of both sides, we get:

v1f = 1.85 m/s

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The statement best describes the object's force is the net force is zero.

When two or more forces are acting on the system of objects, then the to attain equilibrium, net force must be zero.

An object is moving across a surface, but it does not gain or lose speed. This means that the body is moving with constant velocity. The constant velocity indicates that the acceleration is zero.
Thus, the net force is zero.

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Answer:

The direction of friction force is toards north.

Explanation:

A tool box is at rest on the back of a track. The truck is accelerating towards north.

As the frame of reference is acceleratinf so it is a non inertial frame  of reference.

Thus, teh toolkit experineces a pseudo force towards the south direction.

According to the question, the toolbox is at rest so the fiction force is balances by teh psheudoforce, and thus teh friction force is acting toards north.

Teams are not allowed to exceed strict salary caps. Soft salary caps enable teams to go over the salary cap even though these teams will have fewer free agency options.

Salary caps can be a major sticking point in discussions between league administration and players' unions because they restrict players' and teams' ability to negotiate greater wages even when a team is making considerable profits. A number of player strikes and owner lockouts have also targeted them.

Because "bigger" clubs are forced to give up their financial advantages due to a payroll cap, smaller clubs can compete on an equal footing. Another benefit of a financial cap is that it makes teams less likely to form powerful monopolies, increasing the level of competition in the league.

Hard salary caps are not to be surpassed by teams. Although these teams will have fewer free agency possibilities, soft salary caps allow teams to exceed the salary cap. Teams that go above the luxury tax cap are vulnerable (a tax on every dollar spent over the luxury tax cap).

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Answer:

speed/time

Explanation:

Answer:

a= (Vf - Vi)

         t

To find acceleration (a) you need to subtract the finale velocity (Vf) minus the initial velocity (vi) divided by time (t) as shown in the equation above.

Answer:

A fuse and circuit breaker both serve to protect an overloaded electrical circuit by interrupting the continuity, or the flow of electricity. ... Fuses tend to be quicker to interrupt the flow of power, but must be replaced after they melt, while circuit breakers can usually simply be reset.

Answer:

E) The object achieves its maximum speed at approximately x=3m.

Explanation:

Since the object is moving in gravitational field

potential energy + kinetic energy = constant = 14 J

At  x = 3 m , potential energy is minimum that is zero

kinetic energy will be maximum .

Kinetic energy = 14 - 0 = 14 J

Hence option ( E ) is the answer.

Answer: mass

The mass of a person is constant, weight is a force that is influenced by gravity.

a)The aperture size of the radio telescope needs to be approximately 0.27 meters b)The aperture of a radio telescope needs to be much larger than that of an optical telescope because radio waves have much longer wavelengths compared to visible light. c)the resolving power of a telescope depends on the ratio of the wavelength of light.

a. To determine the aperture size of a radio telescope to achieve a resolution at 21 cm, we can use the Rayleigh criterion, which states that the minimum resolvable separation (δθ) is given by:

δθ = 1.22 * (λ / D)

Where λ is the wavelength of the radiation and D is the diameter of the telescope's aperture.

Given that the radio wavelength is 21 cm (or 0.21 m), and we want to achieve the same resolution as the optical telescope (1 second of arc), we can rearrange the formula to solve for D:

D = 1.22 * (λ / δθ)

D = 1.22 * (0.21 m / 1 second of arc)

Calculating the result:

D ≈ 0.27 m

Therefore, the aperture size of the radio telescope needs to be approximately 0.27 meters to achieve a resolution of 1 second of arc at a wavelength of 21 cm.

b. The Rayleigh criterion tells us that the resolution of an instrument is inversely proportional to the wavelength.

Since radio waves have longer wavelengths, the telescope's aperture needs to be larger to achieve the same resolution as an optical telescope. This is because a larger aperture collects more incoming waves and allows for finer spatial detail to be resolved.

c. The ability to resolve two objects using a telescope depends on the size of the aperture relative to the wavelength of the radiation. When it comes to resolving stars, the resolving power of a telescope depends on the ratio of the wavelength of light to the size of the telescope's aperture (λ/D).

Blue light has a shorter wavelength compared to red light. Since the resolving power is directly proportional to the wavelength, a shorter wavelength of blue light allows for better resolution.

Therefore, two predominantly blue stars can be resolved because their shorter wavelength allows for finer detail to be distinguished, while the same separation between two predominantly red stars cannot be resolved due to the longer wavelength.

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To construct an inductor of a given inductance using copper wire and a plastic tube, the student will also need a magnetic core.

An inductor is a passive electronic component that is used to store energy in a magnetic field. It consists of a coil of wire wound around a magnetic core, which is usually made of a ferromagnetic material such as iron or ferrite. The magnetic core enhances the magnetic field created by the coil and increases the inductance of the inductor.

The plastic tube can be used to create a form for the coil of wire. The copper wire will be wound around the plastic tube to create the coil. However, without a magnetic core, the inductance of the coil will be very low, and it may not function as an inductor at all.

The choice of magnetic core material will depend on the specific application and the frequency range of the circuit. In some cases, air can be used as the core material, but in most cases, a magnetic material is required to achieve the desired level of inductance.

In summary, to construct an inductor of a given inductance using copper wire and a plastic tube, the student will need a magnetic core in addition to the copper wire and plastic tube.

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Answer:The mass number of this carbon atom is six.

Explanation:

Thats the answer on plato

In one million years, continents A and B will be 50 kilometers farther apart.

The rate at which the oceanic ridge is spreading is given as 5 cm/yr. To find how much farther continents A and B will be from each other in one million years, we can use the formula Distance = Speed × Time.

First, let's convert the speed from cm/yr to km/yr. Since 1 km = 1000 m and 1 m = 100 cm, we divide the speed by 100,000 to convert cm/yr to km/yr. Therefore, the speed is 5 cm/yr ÷ 100,000 = 0.00005 km/yr.
Next, we multiply the speed by the time (1 million years) to find the distance. Distance = 0.00005 km/yr × 1,000,000 years = 50 km.

Therefore, in one million years, continents A and B will be 50 kilometers farther from each other.
To summarize:
- Convert cm/yr to km/yr by dividing by 100,000.
- Multiply the speed in km/yr by the time (1 million years) to find the distance.
- The continents will be 50 kilometers farther from each other.

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Global Positioning System (GPS) is a satellite-based tracking system that enables users to determine a person's position.

This system is used to locate and track the movements of individuals, vehicles, and assets around the world. GPS technology works by utilizing a network of satellites orbiting the Earth that send signals to GPS receivers on the ground. These receivers interpret the signals and calculate the user's precise location, speed, and direction.

GPS technology has a wide range of applications, including navigation, tracking, and mapping. GPS tracking is particularly useful in fleet management, logistics, and emergency response situations. Law enforcement agencies also use GPS technology to monitor the movements of individuals who are under surveillance or subject to electronic monitoring.

GPS technology has revolutionized the way people navigate and interact with the world around them. It has made it easier for individuals to find their way around unfamiliar places and has improved the efficiency and safety of many industries. The widespread availability of GPS technology has also led to the development of new applications and services that make use of location data, such as geotagging and location-based advertising. Overall, GPS technology has had a significant impact on society and will continue to play an important role in shaping the future.

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oscilloscope is set to 2volts/div, with the centre line representing 0V. It is connected to a source of potential difference, and the trace is a horizontal line, three divisions above the centre line

Answer: (Sorry, but I don't know how to calculate mass)

1. 15 N

2. 0.4921 \(\frac{ft}{s^2}\) (feet per second squared)

4. 150 N

5. 8.202 feet per second squared