Trace the changes that take place in a flower from gamete formation to fruit

formation.

5

36 In the given circuit, A, B, C and D are four lamps connected with a battery of

60V.

Analyse the circuit to answer the following questions.

(i) What kind of combination are the lamps arranged in (series or parallel)?

(ii) Explain with reference to your above answer, what are the advantages (any

two) of this combination of lamps?

(iii) Explain with proper calculations which lamp glows the brightest?

(iv) Find out the total resistance of the circuit.​

The speed of the second satellite is less than the speed of the first satellite.

The speed of any moving object is the ratio of the distance covered and the time taken to cover that distance.

Given is a satellite is in a circular orbit around a planet. A second satellite is placed in a different circular orbit that is farther away from the same planet.

When the distance from the center of the orbit increases, the time to complete the orbit will be greater.

Thus, the speed of the second satellite is less than the speed of the first satellite.

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The reciprocals of the resistances in a parallel circuit with three conductors are added to determine the overall resistance using the formula 1/R = 1/R1 + 1/R2 + 1/R3.

The total resistance of a parallel electrical circuit with three conductors and resistances R1, R2, and R3 is calculated using the formula 1/R = 1/R1 + 1/R2 +1/R3. The conductors of a parallel circuit are linked so that the voltage across each wire is the same, but the current flowing through each conductor may vary. This indicates that the circuit's entire current is distributed among the three conductors. According to the formula, the circuit's overall conductance is equal to the sum of the conductances of its individual conductors. We may calculate the overall resistance of the circuit by calculating the reciprocal of the total conductance. This formula can be extended to circuits with any number of parallel conductors, making it a useful tool for calculating the total resistance of a circuit.

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A change in temperature frequently causes substances to change phases. Most substances are solid at low temperatures; as the temperature rises, they become liquid; and at still greater temperatures, they become gaseous.

Melting is the conversion of a solid into a liquid (an older term that you may see sometimes is fusion). Solidification is the process where a liquid turns into a solid. The melting point, or the temperature at which a pure substance begins to melt, is a property of that substance. A solid must expend energy to become a liquid. A specific quantity of energy is required by every pure substance in order to transform from a solid to a liquid. This amount is known as the substance's enthalpy of fusion (or heat of fusion).

The complete question is- The diagram shows how states of matter can change when energy is either added or removed.

System before change

System after change

00000

00000

00000

00000

00000

00000

00000

All of these statements below are true EXCEPT

Energy was added to the matter causing the particle movement to increase.

The matter changed states which is a physical change.

The particles in the matter before the change had more energy than after the change.

The particles in the matter before the change had less energy than after the change.

the diagram is attached below.

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Answer:

a= 4m/s^2

Explanation:

Fnet =200N

m=50kg

a=?

Fnet = ma

200=50a then divide both sides by 50 to get acceleration

Taking into account the Newton's second law, the acceleration of the box is 4 \(\frac{m}{s^{2} }\).

In first place, you have to know that Newton's second law, called the fundamental law or fundamental principle of dynamics, states that a body accelerates if a force is applied to it.

Then, the amount of force necessary is proportional to the acceleration that the body acquires, and the constant of proportionality  is the mass of the body.

Mathematically, Newton's second law is:

F= m×a

where:

In this case, you know:

Replacing in the Newton's second law:

200 N= 50 kg×a

Solving:

a=200 N÷ 50 kg

a= 4 \(\frac{m}{s^{2} }\)

In summary, the acceleration of the box is 4 \(\frac{m}{s^{2} }\).

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The result of multiplying a particle's mass by its velocity is the fluctuation in momentum of a ball, which is 30 kg per second. Since momentum has both a magnitude and a direction, it is a vector quantity.

Almost every action that involves motion has momentum. It is an important tenet of physicsFor instance, if a team is moving forward and trying to stop, it will be difficult.

mv - mu, where u = 0 and v = 10 m/s, equals change in momentum.  Note that the ball moved from rest, therefore its initial velocity was zero (u = 0).

Momentum change is equal to mv mu, which is 3*10 - 3*0, or 30.

30 kg/s = change in momentum.

Momentum can be compared to the "power" a moving body has, or the amount of force it can exert on another body. For instance, a baseball that is thrown quickly (high velocity) and has a small bulk (big mass) can have the exact same momentum as a bowling ball that is travelling very slowly (low velocity).

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Answer:

50.3N

Explanation:

Work done = force x distance

422J. = force x 8.39m

÷8.39 both side to get force

Force is 50.3N to 1 d.p.

Check:

50.3 x 8.39=422.017J

Same as 422J to 1 d.p

Answer:

heartbroken

Explanation:

just failed my test cause i typed my answers in Caps. Acellus a scam . leave a heart if you feel for me :(  (Answers above were right btw)

A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow

The isotopes of any element have same number of protons inside them.

Cadmium is a chemical element with the symbol Cd and atomic number 48. It is soft, silvery and white metal.

Given is about Cadmium that it has eight naturally occurring isotopes.

Isotopes are the atoms of the same element which have same number of protons in them but the number of neutrons are different. Isotopes usually have same chemical properties, but they have different physical properties. Their can be stable and unstable isotopes. These unstable isotopes are also called radioisotopes, since they emit radiation. Thus, the isotopes have same number of protons.

Therefore, the isotopes of any element have same number of protons inside them.

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There is an equation sheet for AP Physics. The equation sheet is a reference sheet provided by College Board (the organization that administers the AP Physics exam) that contains a list of commonly used equations and formulas that students are expected to know and use in the exam. The use of this equation sheet can greatly help students in solving the problems they encounter during the exam.

In AP Physics, the equation sheet is an essential tool for students to have with them during the exam. The sheet contains a list of equations and formulas that students will need to apply in order to solve the problems they will face in the exam. This can include equations related to motion, energy, forces, and many other topics that are covered in AP Physics.

In conclusion, the equation sheet for AP Physics is a valuable resource for students taking the exam. It provides a comprehensive list of the equations and formulas that are commonly used in the exam, and helps students to better understand the concepts covered in the course. By preparing and using the equation sheet, students can increase their chances of success in the AP Physics exam.

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A 2100 kg truck is moving at 31m/s[E] and crashes into a 1500 kg car traveling at 24m/s[E]. The two cars lock bumpers and continue as one object. The decrease in kinetic energy during the inelastic collision is 870194 J. The law of conservation of momentum is used to determine the final velocity of the combined vehicles.

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The statement that is not true about magnetic fields is d) a negative point charge moving through a magnetic field produced by a magnet can experience magnetic force due to this field. Since the charge of a negative point charge is negative, the direction of the magnetic force it experiences is opposite to that of a positive point charge moving with the same velocity in the same magnetic field.

This is because the magnetic force on a charged particle moving through a magnetic field is given by the equation F = qvB sinθ, where F is the magnetic force, q is the charge of the particle, v is its velocity, B is the magnetic field strength, and θ is the angle between the velocity of the particle and the direction of the magnetic field. Since the charge of a negative point charge is negative, the direction of the magnetic force it experiences is opposite to that of a positive point charge moving with the same velocity in the same magnetic field. Therefore, the correct statement would be that a negative point charge moving through a magnetic field produced by a magnet can experience a magnetic force due to this field, but the direction of the force would be opposite to that experienced by a positive point charge.

The other three statements are all true. A wire with current running through it produces a magnetic field in the space surrounding it due to the movement of charged particles in the wire. A magnet produces a magnetic field in the space surrounding it due to the alignment of the magnetic moments of the atoms or molecules in the magnet. And a charged particle moving through a magnetic field can experience a magnetic force due to the interaction between the magnetic field and the moving charge.

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True. In order to develop patterns, the study of physical phenomena is considered to be a part of physics.

The field of research known as physics studies the interactions between the underlying elements of the cosmos and the structure of matter. Quantum mechanics is used to study very small objects, and general relativity is used to study everything in the universe.

The study of celestial objects and space in general—basically, everything outside of Earth's atmosphere—is known as astronomy.

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Answer:

Each hailstone has a mass of 7 g and a speed of 4.5 m /s. If the collisions are elastic, what is the average force on the window? ... strike a glass window of an area of 0.954 m2 at an angle of 25◦ to the window surface.

Explanation:

Thats all i hope this helps lol

Answer:

making the size of the car bigger is good

A class assignment requires the building of sloar powered car then improving the design by reducing the mass of the design will be a better option.

A solar cell, also known as a photovoltaic cell, is any apparatus that directly transforms light into electricity using the photovoltaic effect. The great majority of solar modules are called silicon, which can be found in amorphous (noncrystalline), polycrystalline, and crystal (single crystal) varieties, with varying degrees of efficiencies.

Solar cells do not use oxidation processes or require fuel to generate electricity, making them, unlike batteries. They also do not include any moving parts, making them, unlike electric generators.

Arrays are big collections of solar cells that can be put together. These arrays, which are made up of thousands of separate cells, have the capacity to serve as central electric power plants, transforming solar energy into electricity and distributing it to customers in the commercial, industrial, and residential sectors.

By reducing the mass of the design the car will become lightweight then it is able to get speed quickly also the efficiency of the car will also improve.

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Answer:

The musculoskeletal system involves the complex interactions of muscles, bones, and connective tissues.

When a muscle contracts, a bone will move. When a bone contracts, a muscle will move. When a ligament contracts, a tendon will move.

Answer:

A. when a muscle contracts , a bone will move

Explanation

thats the correct answer to this question on edg2021 :)

a. The free-body diagram for the glass when it is at the top of the circle is attached below.

b. The equation for the net force on the glass at the top of the circle in terms of w, Fn, m, v, and r is mg x g + N - mg x Vtop² /R =0

c. The glass will fall out of the bucket if the normal force between the glass and bucket equals zero. The speed with which she spin the bucket to prevent this from happening is 3.83 m/s.

d. The string will break if the tension on it is more than 100 N. The range of speeds can prevent the string from breaking is 3.83< Vtop<4.99 m/s

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

Given, Angela has a bucket of mass 2 kg tied to a string. She places a drinking glass of mass 0.5 kg in the bucket. She spins the bucket in a vertical circle of radius 1.5 m. She must swing the bucket to keep the glass from falling out.

a. The free body diagram of the bucket and glass is attached below.

b. Bucket will undergo centrifugal force

Fb = mVtop² /R

From the equilibrium of forces, we have

For bucket,

T +mb xg - N = mb x Vtop² /R..............(1)

For glass,

mg x g + N = mg x Vtop² /R..............(2)

Thus, this is the net force equation on the glass.

c. On adding both the equations. we have

T + (mb + mg) xg = (mb + mg) Vtop² /R

Substituting the values, T = 0 and from the question, we get

0 + (2+0.5) 9.81 = (2+0.5)(Vtop²/0.5)

Vtop = 3.83 m/s

Thus, the speed of spin to prevent glass from falling out is 3.83 m/s

d. The string will break if the tension on it is more than 100 N

100 + (2+0.5) 9.81 = (2+0.5)(Vtop²/0.5)

Vtop = 4.99 m/s

Thus, the range of velocity is 3.83< Vtop<4.99 m/s

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To determine that the object in motion was moving at a constant speed, Jose likely used a speedometer or a device that measures the distance traveled and the time taken to travel that distance.

This device could be a stopwatch or a timer to measure the time, and a ruler or a measuring tape to measure the distance traveled by the toy car. Jose may have conducted his experiment on a track with a known length, or he may have marked a distance on a flat surface and repeated the experiment multiple times to ensure accuracy. He could also have used a video camera to record the motion of the toy car and then analyzed the footage to measure the distance traveled and the time taken. Overall, Jose likely used a combination of measurement tools such as a timer, a ruler, and possibly a video camera to collect data and conclude that the object in motion was moving at a constant speed.

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Answer:

its electrons

Explanation:

only electrons stays outside the nucleus unlike protons and neutrons and it has little to no mass

a. Part A: The area of each plate is required for for a 0.300 uF capacitor is 1.56 × \(10^{-4}\) m².

b. Part B: If the electric field in the paper is not to exceed one-half the dielectric strength, the maximum potential difference that can be applied across the compactor is 2025 V.

To find the area of each plate required for a 0.300 uF capacitor, use the formula:

C = ε₀εrA/d

where C is the capacitance, ε₀ is the vacuum permittivity (8.85 × \(10^{-12}\) F/m), εr is the relative permittivity (dielectric constant), A is the area, and d is the distance between the plates. In this case,

C = 0.300 uF

εr = 2.10

d = 8.10 × \(10^{-5}\) m.

Rearrange the formula to find A:

A = Cd / (ε₀εr)

A = (0.300 × \(10^{-6}\) F)(8.10 × \(10^{-5}\) m) / (8.85 × \(10^{-12}\) F/m × 2.10)

A ≈ 1.56 × \(10^{-4}\) m²

Thus, the area of each plate required for a 0.300 uF capacitor is approximately 1.56 × \(10^{-4}\) m².

To find the maximum potential difference that can be applied across the capacitor, use the formula:

V = Ed

where E is the electric field and d is the distance between the plates. In this case, E is half the dielectric strength (50.0 MV/m / 2 = 25.0 MV/m), and d = 8.10 × \(10^{-5}\) m:

V = (25.0 × 10^6 V/m)(8.10 × 10^-5 m)

V ≈ 2025 V

Thus, the maximum potential difference that can be applied across the capacitor without exceeding one-half the dielectric strength is approximately 2025 V.

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According to given data, the average speed of train is 25 km/h.

Given data,

distance = 5 km

time = 12 minutes

average speed = ?

changing time from minute to hour

So,

hour = 12 / 60

hour = 0.2

Then to calculate speed use the formula,

s = d / t

s = 5km / 0.2hr

s = 25 km/h

Velocity is the rate and direction of an object's movement, whereas speed is the time rate at which an object is moving along a path. In other words, velocity is a vector value, whereas speed is a scalar value. It has a dimension of time-distance. As a result, the basic unit of time and the basic unit of distance are combined to form the SI unit of speed. Thus, the metre per second (m/s) is the SI unit of speed.

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The statement that is true about solar system densities is The denser planets lie closer to the Sun while the farther one planets from the sun have lower densities.

Solar system comprises of the the planets, moon, stars, comets , smaller bodies and how they orbit around the sun.

Therefore, The statement that is true about solar system densities is The denser planets lie closer to the Sun.

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Answer:

b the balls maximum height

I believe Kalpana gave the correct explanation.

The reason is that density is a property of a material that remains the same regardless of the size of the sample. Density is defined as mass divided by volume (density = mass/volume), and it is a characteristic property of a particular type of rock.

Bigger stones will indeed be heavier, but their volume will also increase proportionally, maintaining the same density value. So, the density will be the same for any size of the stone, as long as the type of rock is the same.

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complete question not found in search engine.

SMM2 refers to the Standard Method of Measurement 2. It is a document that specifies the method and processes used in measuring buildings and civil engineering works. SMM2 is commonly used in the construction industry.

The following are explanations of the clauses under Standard Method of Measurement 2 (SMM2):

i. D.10: This clause under SMM2 relates to the painting of metal and timber surfaces. It stipulates that when painting the surfaces of timber or metal, the preparation of surfaces and application of paint must conform to manufacturer specifications. It also specifies that the paint must be applied using a brush, roller, or spray. The clause then goes on to outline specific measurements for the thickness of paint coating to be applied on surfaces.

ii. D.12.4: This clause under SMM2 refers to the construction of walls using concrete blocks. It states that the concrete blocks used should have a minimum density of 1500 kg/m3. It also outlines specific measurements for the thickness of the mortar to be used for bonding the blocks together. The clause further specifies the measurement of the joint thickness between blocks.

iii. D.12.6: This clause under SMM2 refers to the rendering of walls with a cement mortar mix. It specifies that before rendering, the surface of the wall must be clean, dry, and free of debris. It also outlines specific measurements for the thickness of the rendering to be applied to the wall. The clause then stipulates that the rendering should be finished with a smooth surface that conforms to the architect's specifications.

iv. D.12.8: This clause under SMM2 refers to the painting of interior plastered walls. It stipulates that the preparation of surfaces and application of paint must conform to manufacturer specifications. It also specifies that the paint must be applied using a brush, roller, or spray. The clause then goes on to outline specific measurements for the thickness of paint coating to be applied on surfaces.

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Answer:

translational energy

Explanation:

because is diatomic

The buoyant pressure is the upward force a fluid exerts on an item. Archimedes' precept is the fact that buoyant force is identical to the weight of the displaced fluid.

Buoyancy is a physical phenomenon that describes the upward force this is exerted on an item submerged in a fluid, inclusive of water or air. This pressure is a result of the pressure differences between the top and backside of an item in a fluid, and it is referred to as buoyant pressure.

The study of buoyancy is important in various fields, including naval architecture, oceanography, and engineering. For example, understanding buoyancy is crucial for designing ships and submarines that can float and maintain stability in water, as well as for developing buoyancy systems for offshore oil and gas drilling. Buoyancy also plays a key role in meteorology, as it affects the movement of air masses and the formation of clouds and precipitation.

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At the top of the hill, the cars have a great deal of gravitational potential energy, equal to the cars' weight multiplied by the height of the hill. When the cars are released from the chain and begin coasting down the hill, potential energy transforms into kinetic energy until they reach the bottom of the hill.