A capacitor is connected to a battery and charged to Q. A dielectric is inserted in the capacitor while it is connected to the battery. Which of the following is true? A) The charge increases and the potential difference increases. B) The capacitance, charge, and potential difference increase. C) The capacitance and charge increase. D) The capacitance increases and the potential difference decreases. E) The capacitance is constant and the potential difference decreases.

Although we do not have the diagram needed to answer this question, we can provide general information in that electrical potential energy is calculated based on the charges and the distance between them.

This energy can be calculated using the value of the charges along with the distance between them with the formula Energy = \(k\frac{q1q2}{r}\) in which q represents the charges whilst r represents the distance of separation. As we can see these values are inversely proportional to one another.

Therefore, we can confirm that we can calculate electric potential energy using the charges and the distance between them, which will be inversely proportional to one another.

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Answer:

The correct option is;

The proposal is denied, because participants will likely suffer psychological harm

Explanation:

Among the recommendations in the report on ethical research with children, it is suggested that the following should be observed by researchers;

1) Seeking consent should be a continuous process

2) Contemplate payment forms other than money to allow more discretion on child safety

3) Have two way communication with the child

4) Ask for assent of the child participating in the research

The above APA suggestions where not met by the researcher in the study.

Answer:

The proposal is denied, because participants will likely suffer psychological harm.

Explanation:

This proposal would cause psychological harm to its participents.

I also took the test and that was the correct answer.

When a second capacitor is added in parallel to the existing capacitor in an RCL circuit, the resonant frequency of the circuit remains the same. Option C is correct answer.

In an RCL circuit, the resonant frequency is determined by the values of the inductor (L) and the capacitor (C) in the circuit. When a second capacitor is added in parallel, it increases the total capacitance of the circuit. However, the resonant frequency depends on the product of the inductance and the total capacitance.

Since the inductor value (L) remains the same and the total capacitance (C_total) increases due to the additional capacitor in parallel, the resonant frequency (f_resonant) remains unchanged resistance. The resonant frequency is given by the equation:

\(f_resonant = 1 / (2\pi \sqrt{(L *Ctotal)} )\)

By adding a capacitor in parallel, the total capacitance increases but it does not affect the inductance. Therefore, the resonant frequency remains the same.

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The Complete question is

In an RCL circuit a second capacitor is added in parallel to the capacitor already present. Does the resonant frequency of the circuit

A. increase,

B. decrease, or

C. remain the same

Answer:

690.8895705521 × 10^8 is the perfect answer of your question.

Answer:

Its B

Explanation:

a p e x

Answer: Re-Horakhty

Explanation:

He has a human body and a falcon head, he has a crown in form of a disk with a cobra on his head. Ra-Horakhty was thought of as the god of the rising sun.

The initial velocity of the car is 6.68 m/s east.

The initial velocity of the car is determined by applying the principle of conservation of linear momentum.

m₁u₁ + m₂u₂ = m₁v₁+ m₂v₂

let east = positive direction

let west = negative direction

2100u₁ + 55(-0.5) = 2100(6.31) + 55(13.5)

2100u₁ - 27.5 = 13,993.5

2100u₁ = 14,021

u₁ = 14,021/2100

u₁ = 6.68 m/s east

Thus, the initial velocity of the car is 6.68 m/s east.

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International space station is the mission of NASA. It has launched 134 successful space missions.

International space station is a huge place in the space but in the close orbit with all possible facilities for astronauts , scientists and others

The National Aeronautics and Space Administration (NASA) is an acronym for the National Aeronautics as well as Space Administration. NASA was established as a division of the United States government on October 1, 1958. NASA is just in charge of all research and technology related to aviation and space in the United States.

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Answer:

the branch currents are as follows:

  top left: I2 = 0.625 A

  middle left: I1 = 2.500 A

  bottom left: I1-I2 = 1.875 A

  top center: I2+I3 = 2.500 A

  bottom center: I2+I3-I1 = 0 A

  right: I3 = 1.875 A

Explanation:

You can write the KVL equations:

Top left loop:

  I2(4) +(I2 +I3)(2) +I1(1) = 10

Bottom left loop:

  (I1-I2)(4) +(I1-I2-I3)(2) +I1(1) = 10

Right loop:

  (I2+I3)(2) +(I2+I3-I1)(2) = 5

In matrix form, the equations are ...

  \(\left[\begin{array}{ccc}1&6&2\\7&-6&-2\\-2&4&4\end{array}\right]\cdot\left[\begin{array}{c}I_1\\I_2\\I_3\end{array}\right] =\left[\begin{array}{c}10\\10\\5\end{array}\right]\)

These equations have the solution ...

  \(\left[\begin{array}{c}I_1\\I_2\\I_3\end{array}\right] =\left[\begin{array}{c}2.500\\0.625\\1.875\end{array}\right]\)

This means the branch currents are as follows:

  top left: I2 = 0.625 A

  middle left: I1 = 2.500 A

  bottom left: I1-I2 = 1.875 A

  top center: I2+I3 = 2.500 A

  bottom center: I2+I3-I1 = 0 A

  right: I3 = 1.875 A

_____

This can be worked almost in your head by using the superposition theorem. When the 5V source is shorted, the 10V source is supplying (I1) to a circuit that is the 4 Ω and 2 Ω resistors in parallel with their counterparts, and that 2+1 Ω combination in series with 1 Ω for a total of a 4Ω load on the 10 V source. That is, I1 due to the 10V source is 2.5 A, and it is nominally split in half through the upper and lower branches of the circuit. There is no current flowing through the (shorted) 5 V source branch.

When the 10V source is shorted, the 5V source is supplying a 4 +4 Ω branch in parallel with a 2 +2 Ω branch, a total load of 8/3 Ω. This makes the current from that source (I3) be 5/(8/3) = 15/8 = 1.875 A. There is zero current from this source through the 1 Ω resistor.

Nominally, the current from the 5V source splits 2/3 through the 2 Ω branch and 1/3 through the 4 Ω branch.

Using superposition, I2 = I1/2 -I3/3 = (2.5 A/2) -(1/3)(15/8 A) = 0.625 A. This is the same answer as above, without any matrix math.

  (I1, I2, I3) = (2.5 A, 0.625 A, 1.875 A)

__

It helps to be familiar with the formulas for resistors in series and parallel.

Answer:

he magnetic field is greater because the magnetization of the material is added

Explanation:

The magnetic field in a solenoid is given by the relation

          B₀o = μ₀ n I

where n is the density of turns and I the current

When we put a magnetic material inside solenoid

the magnetic field is

         B = B₀ + μ₀ M

where M is called the magnetization of the material and corresponds to the alignment of the magnetic moments of the atoms with the field, therefore the total field is much greater, it should be noted that the part of Bo increases with the current, but the magnetization has a maximum value.

Consequently the magnetic field is greater because the magnetization of the material is added

Answer:

for one they will stay there. And another thing it will do is collect rust pretty much destroying it.

Explanation:

According to the given statement 46 days  is the half-life of the radioisotope.

An unstable chemical element that releases radiation as it breaks down and becomes increasingly stable. Both the natural environment and a laboratory can produce radioisotopes. They are used in medical imaging research and therapy.

A radioactive substance's half life can be predicted by:

Nt = No(1/2)^(t/th)

Nt is the amount remaining (mg)

No is the initial amount (mg)

t is the time elapsed, in days

th is the half life in days.

Nt = No(1/2)^(t/th)

0.50mg = (8.0mg)(1/2)^(184 days/th)

We can resolve this for Th using logs.

th = 46 days

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C. a decrease in energy.

When water vapor cools, its molecules lose energy, causing them to move closer together. As the molecules become more closely packed, they eventually form liquid water. This change in the state of matter is known as condensation.

When water vapor loses energy through cooling, its molecules become closer together and eventually form liquid water. This process is called condensation.

Therefore, the correct answer to the question is C. a decrease in energy.

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Answer:

A

Explanation:

Use the conservation of energy formula to calculate the velocity of the ball when it reaches the halfway point (10m down). Then, use your calculated value to obtain the kinetic energy.

Answer:

A. 49 on Plato

Explanation:

Its the right one trust me .

According to the given question, the object's acceleration along the horizontal surface is -2.4 m/s2. The negative sign indicates the object is decelerating.

To find the object's acceleration along the horizontal surface, we can use the formula forthe uniformly accelerated motion:

v_f = v_i + at, where v_f is the final velocity, v_i is the initial velocity, a is acceleration, and t is time. Since the object stops, v_f = 0.

1. Calculate initial velocity (v_i) using the formula: v_i = d / t, where d is the distance (60 m) and t is time (5.0 s).
  v_i = 60 m / 5.0 s = 12 m/s

2. Use the uniformly accelerated motion formula: 0 = 12 m/s + a(5.0 s)

3. Solve for acceleration (a):
  -12 m/s = a(5.0 s)
  a = -12 m/s / 5.0 s = -2.4 m/s²

The object's acceleration along the horizontal surface is -2.4 m/s2. The negative sign indicates the object is decelerating.

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The generation, consumption, conversion, and exchange of thermal energy across physical systems is the focus of the thermal engineering field of study known as heat transfer.

Despite mercury having a far higher heat conductivity than water, this doesn't really matter in this situation. Here, H represents the heat transmission. Then, a key factor in this situation is the particular temperatures of these compounds. Compared to mercury, water has a substantially higher specific heat. So, unlike how the temperature of mercury has changed, the temperature of water won't fluctuate as much. Since the mass of both substances is the same, the system's end temperature will be considerably closer to the water's initial temperature.

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Answer:

a) 12614.4 m^3

b) 28.8 m

Explanation:

The complete question is

Four astronauts are in a spherical space station. (a) If, as is typical, each of them breathes about 500 cm^3 of air with each breath, approximately what volume of air (in cubic meters) do these astronauts breathe in a year? (b) What would the diameter (in meters) of the space station have to be to contain all this air?

The average breathing rate is 12 breaths per minute

there are 60 minutes x 24 hours x 365 days in a year = 525600 minutes in a year

if an average human takes 12 breath per minute, then in a year an average human take 12 x 525600 = 6307200 breath

For the four astronauts, the amount of breath = 4 x 6307200 = 25228800 breath in total.

The volume of air per breath = 500 cm^3

1 cm^3 = 10^-6 m^3

500 cm^3 = \(x\) m^3

\(x\) = 500 x 10^-6 = 5 x 10^-4 m^3

Therefore in a year, the volume of these astronauts breath in a year = 5 x 10^-4 x 25228800 = 12614.4 m^3

b) If the space station is spherical, the volume will be given as = \(\frac{4}{3} \pi r^3\)

where r is the radius of the space station

This volume of the space station must be able to contain all the volume of breath produced by the astronauts which is = 12614.4 m^3

Equating, we have

12614.4 = \(\frac{4}{3} \pi r^3\)

12614.4 = \(\frac{4}{3}*3.142*r^3\)

12614.4 = 4.1893\(r^{3}\)

\(r^{3}\) = 12614.4/4.1893 = 3011.1

r = \(\sqrt[3]{3011.1}\) = 14.4 m

diameter of the space station = 14.4 m x 2 =  28.8 m

Answer:

the answer is D. Gravitational force

Answer:

B.

Light rays bends at the sharp edges in YDSE as well as double slit but intensity is much less in double slit exp. .

I hope it will be useful.

A, B, and C are three ways in which the double-slit experiment supports the wave model of light. Therefore, options A, B, and C are correct.

The following conclusions can be drawn from the results of the double-slit interference test: The head of the light that is absorbed by the screen is only a portion of the light wave; the light wave without the head can still result in interference phenomena.

An interference pattern, which consists of a mix of dark and bright bands, may be observed on the sensor screen across from the slits. Young used this interference pattern as proof that light was a wave rather than a particle.

The presence of bright and darker bands and the bending of light when it passes through the small opening are only be explained if the light is a wave. Therefore, options A, B, and C are correct.

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Answer:

D.

Explanation:

Force and distance are inversely related, so a greater distance results in a weaker force.

Answer:

Which sentence best states the central idea of paragraphs 21-22 in "Energy Story"?

A. Materials that are insulators and conductors have a high

resistance to electricity.

Part B

Which sentence from "Energy Story" best supports the answer in Part A?

B. "Its resistance measures how well something conducts

electricity."

Explanation:

The value of resistor R that gives the circuit in the figure a time constant of 22 μs is 220 Ω.

The circuit that is in the figure is shown below:Given that time constant (RC) = 22 μs. To find the value of resistor R, we need to use the formula for the time constant:

RC = τ, where R is the resistance and C is the capacitance of the circuit.

Rearranging the above formula, we get:R = τ / C

Where τ is the time constant and C is the capacitance of the circuit.

From the figure, the capacitance is given as 0.1 μF

.Substituting the values of τ and C in the above formula, we get:

R = (22 × 10⁻⁶ s) / (0.1 × 10⁻⁶ F)

R = 220 Ω

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The radius of the disk of the new wheels should be 0.191 m.

It was calculated from the moment of inertia of the old wheels, which is a combination of a thin outer hoop (radius = 0.155 m and mass = 5.30 kg) and two thin crossed rods (mass = 7.25 kg each one), and from the density (5970 kg/m³) and thickness (6.5 cm) of the disk.    

The moment of inertia of the old wheel I(o) is given by the sum of the moment of inertia of the outer hoop and the two rods, as follows:

I(o) = I(h) + 2*I(r)

I(o) = m(h)r(h)² + 2* (1/12)m(r)L(r)²  -------- eq.1

Where:

I(h): is the moment of inertia of the outer hoop  

I(r): is the moment of inertia of the rods

m(h): is the mass of the hoop = 5.3 kg

r(h): is the radius of the hoop = 0.155 m

m(r): is the mass of each rod = 7.25 kg

L(r): is the length of each rods =  = 2*0.155 m = 0.31 m

Then, the moment of inertia of the old wheel is (eq 1):

I(o) = 5.3 kg *(0.155m)² + 2 * (1/12) * 7.25 kg * (0.31m)² = 0.824kgm²

The moment of inertia of the new wheel () is the same as the old wheel, so:

I(n) = I(o)

(1/3)m(d){r(d)}² = 0.824kgm² -------------- eq 2

The mass of the disk, can be calculated from its density

m(d) = d * v(d) ----------------- eq 3

The volume of the disk is equal to a cylinder's volume:

V(d) = π r(d)²h ---------------- eq 4

Where h is the thickness of the disk = 0.065 m

By entering equations (3) and (4) into (2), we have:

(1/2)d * V(d) * r(d)² = 0.824kgm²

(1/2)d * π * h * r(d)⁴ = 0.824kgm²

r(d)⁴ = 0.824kgm²/ (1/2)d * π * h = 0.00135

r(d) = 0.191 m

Therefore, with the moment of inertia, the radius of the disk is calculated to be 0.191 m.

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Answer:

Because both monomers and polymers and cross linked polymers are mers with physically properties which is good for applycations

Explanation:

because they are good for using and not using

also, this is a 5 point question, you are not  fooling anyone. thx for 5 points tho

Answer:

Answer: hydraulic press and hydraulic brakes. ... This law is useful in designing instruments like Bramah press ,Hydraulic press , Hydraulic jack etc. It is the principle in the development of hydraulic brakes , that are used in automobiles. It is also known as law of transmission of fluid pressure

Answer:

The backbone, spine or vertebral column is made up of 26 small bones called the vertebrae.

The characteristics of bones include:

1. They are strong and rigid

2. They are composed of bone cells called osteocytes.

3. They are lightweight

4. They have a honeycomb-like matrix internally, which helps to give them rigidity.

5. They exist in various types and shapes.

6. They have the ability to grow and repair when damaged

7. They contain inorganic minerals such as calcium and phosphate

The two types of joints are the movable and immovable joints.

Ligaments are bands of tough elastic fibrous tissue around that found around the joints whose function is to link bone to bone, give support to joints as well as limit their movement.

Explanation:

The backbone, spine or vertebral column is made up of 26 small bones called the vertebrae. The 26 small bones include 24 separate vertebrae interspaced with cartilage, and then additionally the sacrum and coccyx. The vertebral column is divided into five regions: cervical, thoracic, lumbar, sacral and coccygeal regions.

A bone is a rigid tissue that is part of the skeleton in vertebrate animals. The characteristics of bones include:

1. They are strong and rigid

2. They are composed of bone cells called osteocytes.

3. They are lightweight

4. They have a honeycomb-like matrix internally, which helps to give them rigidity.

5. They exist in various types and shapes.

6. They have the ability to grow and repair when damaged

7. They contain inorganic minerals such as calcium and phosphate

Joints are the junctions where two bones meet. They serve various functions which include allowing for movement of the body and binding the skeleton together.

The two types of joints are the movable and immovable joints.

Ligaments are bands of tough elastic fibrous tissue around that found around the joints whose function is to link bone to bone, give support to joints as well as limit their movement.

Answer:

5. Vertebrae

Explanation:

A back bone made up of 26 small bones is called a vertebrae.

Answer:

A=4

B=3

c=2

D=1

Explanation:

since the person moving in opposite direction so displacement =distance in east/west - distance in west/east

Answer:

748 treats.

Explanation:

If the trainer gives out 34 treats and gave them out for 22 shows, then to find the total you need to multiply 34 by 22, or (a longer but more simple way) add 34, 22 times.

1000N

From Newton's third law of motion, for every action there is an equal and opposite reaction. In other words, when two bodies are in collision, the forces acting between these bodies are equal in magnitude and opposite in direction.

In the case presented in the question, the bodies are the golf cart and the car. During collision, the golf car strikes the car with a 1000N of force (that is the action). Consequential of this, though in the opposite direction, the car will apply an equal force of 1000N (that is the reaction) on the golf car.

Therefore the car applied a force of 1000N on the golf cart.

Answer:

The car applied a force of 1000 N to the golf cart

Explanation:

Based on the laws of conservation of linear momentum, we have that linear momentum is always conserved during a collision.

By Newtons Second law, (impulse law),

\(Ft = [m_{1}(v-u)+ m_{2}(v-u)]\)

Let m 1 be the mass of the golf cart, and v 1 its initial velocity. They are = 200 kg and 5 m/s respectively.

Let m 2 be the mass of the car, and  V 2 it initial velocity. They are = 1500 kg and 0 m/s respectively.

The time involved is 1 second

Applying the values of the variables to the formula, we have.

\(F \times 1 = [200 \times (5-0) - 1500 \times (0-0)]\)

From this we have that the force the car applied to the golf cart is = 1000 N