Part A Under what condition is the angular momentum of an object conserved? O If there are no torques acting on it. O If there is no net torque acting on it. If it is a point particle. If there is no net force acting on it. Submit Request Answer Part B On what does the angular momentum of an object depend? Select all that apply. O The axis of rotation. The shape of the object. O The mass of the object. O The rate at which that the object rotates. Submit Request Answer

Answer:

The blood cell will expand.

Explanation:

Given that,

Salt concentration = 0.5M

Solution concentration = 2M

We know that,

Hypertonic solution :

If the solution concentration is lower than the solute concentration then it is called hypertonic solution.

Hypotonic solution :  

If the solution concentration is higher than the solute concentration then it is called hypotonic solution.

We need to find what will happen to the blood cell

Using given data

The solution concentration is higher than the solute concentration.

So, The solution will be hypotonic solution.

We know that,

When a cell is placed in a hypotonic solution then the water will enter the cell, and the cell will expand.

Hence, The blood cell will expand.

Answer:

The blood cell will expand.

Explanation:

Just took a test.

{Hope this helps} : )

The switch that adjusts the magnetic field to be either nearly uniform or have a strong gradient will affect the current in the two coils differently.

When the magnetic field is nearly uniform at the center, the current in both coils will remain relatively unchanged. The uniform field will not induce any significant voltage in the coils, so the current will flow through them as usual.

However, when the magnetic field has a strong gradient, the current in the two coils will be affected differently. The rapidly changing field will induce a voltage in the coils according to Faraday's law of electromagnetic induction. This induced voltage will result in a change in the current flowing through the coils. The magnitude and direction of the induced current will depend on the specific characteristics of the coils and the magnetic field gradient.

In summary, the switch that changes the magnetic field from uniform to having a strong gradient will induce a change in the current flowing through the coils due to the induced voltage.

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An investor interested in making annual payments to purchase an annuity that will provide income in 10 years should purchase a deferred annuity.

For the investor seeking to make annual payments and receive income in the future, a deferred annuity is the appropriate choice. A deferred annuity allows individuals to accumulate funds over a specified period, typically through regular payments, with the intention of receiving payments or a lump sum at a later date. In this case, the investor would make annual payments into the annuity for 10 years, building up a pool of funds. After the 10-year accumulation period, the investor would then begin receiving regular income payments from the annuity. This type of annuity provides a way to plan for future income needs and can offer financial security during retirement or other specified periods.

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Answer:

turning

Explanation:

because the moment of a force is for pivots

the moment of a force can be clockwise motion and anti clockwise motion

hope this helps

Hop off this app because im telling the teacher because this is cheating and thats wrong. periodt pooh..

The three key words that have been replaced in the cross - section of a solar panel are:

This means that Option A is correct.

A solar panel, also known as a photovoltaic (PV) panel, is a device that converts sunlight into electricity. It is made up of several different parts that work together to generate electricity. Solar cells are made of silicon and are responsible for converting sunlight into electricity. They are usually arranged in a grid pattern on the panel.

The backsheet is the layer of material that sits on the back of the solar cells. It is responsible for protecting the back of the solar cells from moisture and other environmental factors. It is an insulator and is shown as R.

There are also the copper wires which heat the water and they are painted black as black absorbs heat better. These are labeled S and T respectively.

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Answer: Yes it is true according o newton third law of motion

What is Newton Third Law of motion ?

--According to Newton's third law of motion, every action has an equal and opposite reaction.

--These two forces act on two different bodies.

-- Example,

1-  while swimming, you push the water backward. The water, in turn, pushes you forward.

--Similarly, while walking, you push the ground backward.

-- The ground then exerts a reaction force on you in the forward direction.

What is Newton Second Law of motion ?

--Newton's second law of motion states that “Force is equal to the rate of change of momentum.

--For a constant mass, force equals mass times acceleration.

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Answer:

Explanation: as,

v=f∧

v=200×10³×1.5×10³

v=2.7×10^7ms⁻¹

The velocity of the radio waves is 3 × 10⁸ ms⁻¹.

A radio station frequency = 200 KH

wavelength = 1.5 km

         Radio waves in the electromagnetic spectrum has the longest wavelength and it will always be below 300GHz. The radio waves can be generated with acceleration through some charged particles. Only through the transmitter via antenna the radio waves can gets transmitted. Radio waves can be used in all the electronic devices as mobile phones, radio communication, radars and navigations.

                               V = f λ

            Velocity,  v = ( 200 × 10³ ) × ( 1.5 × 10³ )

                               = ( 300 × 10⁶ )

                             v = 3 × 10⁸ ms⁻¹.

Hence, the velocity of the radio waves is 3 × 10⁸ ms⁻¹.

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Wireless radio transmission speed is usually measured in terms of bandwidth or data rate.

Bandwidth refers to the range or capacity of frequencies available for transmitting data in a wireless communication system. It represents the amount of data that can be transmitted per unit of time. A wider bandwidth allows for higher data transmission speeds.

Data rate, on the other hand, refers to the speed at which data is transmitted over a wireless network. It is usually measured in bits per second (bps) or its multiples (e.g., kilobits per second, megabits per second). A higher data rate indicates faster transmission speeds and the ability to transmit larger amounts of data in a given time.

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Answer:

Earth’s gravitational force is stronger

Explanation:

Earth’s gravitational force is stronger than the moon because of the presence of more massive objects in earth; on the flip side, the moon’s gravity is weaker than the earth due to smaller in size as compared to the earth. Earth gravity is denoted by g; conversely, moon gravity is denoted by gm

Answer: The greater an object's mass, the more gravitational force it exerts. So, to begin answering your question, Earth has a greater gravitational pull than the moon simply because the Earth is more massive. That's why the moon isn't pulled out of Earth's orbit by the gravity of larger planets or by the sun.

Explanation:

The reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².

Given that the mass of a person is 60.0 kg and the elevator accelerates upwards with an acceleration of 4.90 m/s², we have to determine the reading on the scale.

Let F be the force exerted by the scale on the person. Then, by Newton's second law of motion, the net force acting on the person is Fnet= m * a

where m = 60.0 kg is the mass of the person and a = 4.90 m/s² is the acceleration of the elevator. Hence, the net force acting on the person is given by;

Fnet = 60.0 kg * 4.90 m/s²

Fnet = 294.0 N

Therefore, the scale reading is equal to the force exerted by the scale on the person. Since the elevator is accelerating upwards, the force exerted by the scale on the person is greater than the weight of the person, which is the force of gravity acting on the person.

The force of gravity acting on the person is given by;

Fg = m * g, where g = 9.81 m/s² is the acceleration due to gravity. Hence, the force of gravity acting on the person is given by;

Fg = 60.0 kg * 9.81 m/s²Fg = 588.6 N

Therefore, the scale reading is given by the sum of the force of gravity acting on the person and the net force acting on the person;

F = Fg + Fnet

F = 588.6 N + 294.0 N

F = 882.6 N

Thus, the reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².

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That there are not significate amounts of dark matter wihtin our solar system.

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The elastic potential energy stored in the compressed spring is determined as 11.6 J.

The elastic potential energy of the spring is the energy stored in the spring and the magnitude is calculated as follows;

U = ( ¹/₂kx² )

where;

The given parameters include the following;

the spring constant, k = 580 N/m

the extension of the spring, x = 0.2 m

Substitute the given parameters and solve for the elastic potential energy stored in the spring based on the compression produced by the two blocks.

U = ( ¹/₂kx² )

U = ( ¹/₂ ( 580 N/m ) ( 0.2 m )² )

U = 11.6 J

Thus, the elastic potential energy stored in the compressed spring is a function of the spring constant and extension of the spring.

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Answer:

for the first time in the future of our games are based on your car advertising

Explanation:

for the first time in the fhgvhbgj tire and wheel drive automatic captions and subtitles for the first time in the future of our games of

The negative sign indicates that the induced emf opposes the change in magnetic flux. The magnitude of the emf induced in the coil is 528 V (to two significant figures) and the appropriate units are volts (V).

The magnitude of the emf induced in the coil can be calculated using Faraday's Law of Electromagnetic Induction:

emf = -N(dΦ/dt)

where N is the number of turns in the coil, Φ is the magnetic flux through the coil, and dΦ/dt is the rate of change of the magnetic flux.

In this case, N = 2 (since there are two loops), Φi = -67 Wb and Φf = 65 Wb, and the time interval is Δt = 0.50 s. Therefore, the rate of change of the magnetic flux is:

dΦ/dt = (Φf - Φi) / Δt = (65 Wb - (-67 Wb)) / 0.50 s = 264 Wb/s

Substituting these values into the equation for emf, we get:

emf = -2(264 Wb/s) = -528 V

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if available power is 208v three phase, and the control voltage is wired phase to ground, the control voltage, when wired phase to ground, would be approximately 120 volts.

In a three-phase electrical system with a line-to-line voltage of 208 volts, the control voltage is typically derived from the available three-phase power supply. For control circuits, the control voltage is often chosen as a lower voltage level for safety and compatibility with control devices. When the control voltage is wired phase to ground, it means that the control voltage is obtained by connecting one phase of the three-phase power supply to ground. In such a configuration, the control voltage is the line-to-ground voltage of a single phase.

In a three-phase system, the line-to-line voltage (208 volts) is higher than the line-to-ground voltage. The line-to-ground voltage is equal to the line-to-line voltage divided by the square root of 3 (approximately 1.732). Therefore, in this case, the control voltage, when wired phase to ground, would be approximately 120 volts.

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The change in specific internal energy of the working fluid is 220 kJ/kg.

The internal energy calculated in (i) is a loss. The total internal energy of the working fluid is 1100 kJ. The heat flow to the cylinder is 320 kJ/kg.

(i) The change in specific internal energy (Δu) is calculated by subtracting the initial specific internal energy (u1) from the final specific internal energy (u2). Thus, Δu = u2 - u1 = 200 kJ/kg - 420 kJ/kg = -220 kJ/kg. The negative sign indicates a decrease in internal energy.

(ii) Since the change in specific internal energy (Δu) calculated in (i) is negative, it means that the internal energy of the working fluid has decreased during the expansion process. Therefore, it is a loss of internal energy.

(iii) The total internal energy (U) of the working fluid can be determined by multiplying the mass of the working fluid (m) by the specific internal energy (u). Therefore, U = m * u = 5 kg * 200 kJ/kg = 1000 kJ.

(iv) The work done by the air during expansion is given as 100 kJ/kg. According to the first law of thermodynamics, the work done (W) is equal to the heat flow (Q) plus the change in internal energy (ΔU) of the system. Thus, W = Q + ΔU. Rearranging the equation, Q = W - ΔU = 100 kJ/kg - (-220 kJ/kg) = 320 kJ/kg. Therefore, the heat flow to the cylinder is 320 kJ/kg.

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Answer:

A number of specific environmental issues can impede human health and wellness. These issues include chemical pollution, air pollution, climate change, disease-causing microbes, lack of access to health care, poor infrastructure, and poor water quality.

Explanation:

hope it will help you have a great day bye and Mark brainlist if the answer is correct

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#carry on learning

Answer:

(2) the work required to move the electron is 4.8 x 10⁻¹⁹ J.

Explanation:

Given;

potential difference, V = 3.00 volts

charge of electron, q = 1.6 x 10⁻¹⁹ C

The work required to move an electron is calculated as;

W = Vq

where;

W is the work done in Joules

Substitute the given values and solve for W;

W = (3.00)(1.6 x 10⁻¹⁹)

W = 4.8 x 10⁻¹⁹ J.

Therefore, the work required to move the electron is 4.8 x 10⁻¹⁹ J.

The time it takes the spaceship to complete one full period of orbit is 4270.1 s

Since a spaceship of 3.20 × 10⁷ kg travels around another planet, of

6.34 x 10²⁵ kg and the distance between them is 12,500 km, we require the time for one full orbit which is its period.

The period of orbit is the time it takes to complete one full cycle of orbit

To calculate the period, we use the equation for the speed of an orbiting object.

v = √(GM/R) where

Also, since the orbit is a circular orbit, its speed, v = 2πR/T where

So, v = √(GM/R)

2πR/T = √(GM/R)

Making the period, T subject of the formula, we have

T = 2π√(R³/GM)

Substituting the values of the variables into the equation, we have

T = 2π√(R³/GM)

T = 2π√((1.25 × 10⁷ m)³/{6.67 × 10⁻¹¹ Nm²/kg² × 6.34 × 10²⁵ kg})

T = 2π√((1.953125 × 10²¹ m³/42.2878 × 10¹⁴ Nm²/kg)

T = 2π√((0.04619 × 10⁷ mkg/N)

T = 2π√((0.4619 × 10⁶ mkg/N)

T = 2π√((0.4619 × 10⁶ mkg/N)

T = 2π(0.6796 × 10³ s)

T = π(1.3592 × 10³ s)

T = 4.27009 × 10³ s

T = 4270.09 s

T ≅ 4270.1 s

So, it take the spaceship 4270.1 s to complete one full orbit

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the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5

Work done by a force is equal to the scalar product of the force applied and displacement. If d displacement happens on applying a force F, then work done, W by the force is

W = F. d

given:

mass, m = 25 kg

height, d = 1.50 m

work has to be done against the weight of the book, F = mg

work done W = F. d

W = mgd

W = (25) ×(9.8)×(1.50)

W = 367.5 J

This work is stored as the potential energy of the book.

Therefore, the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5J

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Answer:fda

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While large scale maps aim to provide detailed information, this focus can lead to the compromise of equivalence and conformity, making it difficult to perfectly preserve both size ratios and shapes.

On large scale maps, equivalence and conformity can be compromised.


1. Understand that large scale maps represent a small area in greater detail.
2. Recognize that equivalence refers to the preservation of size ratios and areas.
3. Acknowledge that conformity refers to the preservation of shape and angles.
4. Realize that on large scale maps, the focus is on detailed representation.
5. As a result, maintaining both equivalence and conformity may be challenging.

: Large scale maps provide detailed representations of small areas. In these maps, maintaining equivalence (preserving size ratios and areas) and conformity (preserving shape and angles) can be compromised due to the focus on detailed representation. Balancing both aspects might be challenging in a large scale map.

While large scale maps aim to provide detailed information, this focus can lead to the compromise of equivalence and conformity, making it difficult to perfectly preserve both size ratios and shapes.

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Answer:

5N westward, acting on the student

Explanation:

Answer: 5N westward, acting on the student

Explanation:

Answer:

most potential is someone in an airplane. second is position A, third is position c, fourth is position D, fifth is position B and least potential is a person standing on the ground.

Explanation:

hopefully you understand what I wrote

Wave D has the lowest amplitude. The highest point of a wave is called amplitude.

The distance between from the crest of a wave to the next crest is known as the amplitude. It is denoted by a.

The standard equation for the SHM is found as;

\(\rm y = asin \omega t\)

Where, a represent the amplitude of the wave.

In the wave D it is observed that the distance from center axis to the highest point of the wave is smallest. Hence, wave D has the lowest amplitude.

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Answer:

To summarize what the expert answer said, it's the last box.

Explanation:

Answer:Centripetal acceleration = v²/r = 8²/0.50 = 64/0.50 = 32

Centripetal force = mass * acceleration = 3 * 32 = 96 Newton

So, your answer is 96 Newton

Explanation:

25w = 100J/4s is the equation which rightly deciphers the relation of power, work and time.

Power is the rate at which work is performed or energy is delivered in accordance with  science and engineering. It can be represented as W/t, which refers to the product of the quantity of work finished (W) or energy converted (E) divided by the amount of time (t).

power (w) equals work (J)/time (s)

The energy that is generated when a force is imposed on a moving object is described as work. The work that a force would do on an item is directly proportional to the force multiplied by the displacement multiplied by the cosine of the angle between them. The SI unit of work and energy is denoted by the letter J.

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Show that 25 W of power is required to give a brick 100 J of PE in a time of 4 s .

The correct statement about acceleration that is always true is option C, which states that either a change in speed or a change in direction causes acceleration.

Acceleration is the rate at which an object's velocity changes over time, and it can occur in different ways. An object can accelerate by increasing or decreasing its speed, or by changing its direction of motion. For example, if a car is traveling in a straight line and suddenly makes a turn, its velocity changes direction, and this change causes the car to accelerate. Similarly, if a roller coaster speeds up or slows down, it is also accelerating.

The, option B, which suggests that objects must always speed up to accelerate, is incorrect. Additionally, option D, which states that both speed and direction must change for acceleration to occur, is also incorrect, as acceleration can occur due to a change in either speed or direction. Finally, option A is true in that the SI unit of acceleration is meters per second squared (m/s^2), but it is not the only statement that is always true about acceleration.

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