Two parallel plates are charged to produce a potential difference of 45 V. If the separation between the plates is 0.78 m, calculate the magnitude of the electric field in the space between the plates

Answer:

the answer is c

The electric force between two or more charged objects depends on the charge and the distance between the charged objects

Coulomb's law states that the force of attraction or repulsion between two charged bodies is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Coulomb's law shows the relationship between the force , charge and the distance between the bodies

therefore F= kq1q2/r²

where q1 is the charge of body 1 and q2 is the charge of body 2. r is the distance between them and k is called electrostatics constant which have a value of 9,×10⁹ Nm²/C²

Therefore what can affect the force between two charges are the product of the charge of the two bodies and the distance between the two charge.

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Answer:

the following image will make you understand

Explanation:

The fastest rollercoaster in the world is the formula rossa in abu dhabi, united arab emirates, speed of this is 240 km/h (149.1 mph)

The rate at which an object's distance traveled changes is measured by its speed. In terms of measurement, speed is a scalar, meaning it has magnitude but no direction. Speed is the rate at which an object moves over a given distance. a thing that travels at a high rate of speed and covers a lot of distance quickly. A slow-moving object, on the other hand, travels a comparatively short distance in the same amount of time when moving at a low speed. An object with zero speed is completely immobile.

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Answer:

DNA, nucleus, chromosomes

Answer:

stationary in an electric field.

moving perpendicular to a magnetic field.

moving perpendicular to an electric field.

Explanation:

Negative charge: In physics, the term "negative charge" is defined as a phenomenon that consists of a surplus or different electrons in any field i.e magnetic or electric field.

However, the correct answer in the question above, would be:

"stationary in an electric field".

"moving perpendicular to a magnetic field".

"moving perpendicular to an electric field".

The form of energy stored in a stretched spring is elastic potential energy. When a spring is stretched or compressed, it possesses potential energy due to the deformation of its structure.

This potential energy is called elastic potential energy because it is associated with the elasticity of the spring.

As the spring is stretched, work is done to overcome the forces within the spring that resist the change in its length. This work is converted into potential energy, which is stored in the spring. The amount of potential energy stored in the spring is directly proportional to the amount by which it is stretched or compressed.

When two forces are simultaneously applied to a spring in opposite directions, it may result in elongation or contraction of the spring, depending on the magnitude and direction of the forces. If the applied forces are strong enough to overcome the spring's elasticity, the spring will undergo deformation and exhibit elongation or contraction. This deformation is a manifestation of the stored elastic potential energy being converted into mechanical energy.

Shear, bending, and intermolecular binding energy are not directly related to the stretching of a spring.

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An object 3.4 mm tall is placed 25 cm from the vertex of a convex spherical mirror, the image is located approximately 12.75 cm from the mirror.

We may use the mirror formula for a convex spherical mirror to solve this problem:

1/f = 1/v - 1/u,

Here, it is given that:

Height of the object (h) = 3.4 mm = 0.34 cm (converting to centimeters),

Object distance (u) = 25 cm,

Radius of curvature (R) = 52 cm.

f = R/2.

f = 52 cm / 2 = 26 cm.

1/26 = 1/v - 1/25.

1/v = 1/26 + 1/25.

So,

1/v = (25 + 26) / (26 * 25) = 51 / (26 * 25)

v = (26 * 25) / 51.

v ≈ 12.75 cm.

Thus, the image is located approximately 12.75 cm from the mirror.

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Formula of

Line segment

is AB =

\(\sqrt{(x_{2} -x_{1} )^{2} } +\sqrt{(y_{2} -y_{1} )^{2} }\)

Line segment

is a part of line with definite length. It has two ending points whereas a line has no end points and extended infinitely in both the direction. Line which joins both ending points with possible shortest way is known as

Line segment

.

            A ______________________ B    

        (x₁,y₁)                                             (x₂,y₂)      

This line segment can be represented as \(\frac{}{AB} /\frac{}{BA}\). In other word we can say line segment is

subset

of line, so it contains all the points of line lying between both end point of segment. For shorter length it can simply measure by

ruler

. A bar (-) is always on top of its notation {\(\frac{}{AB}\)}.

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Formula of Line segment is AB =  \(\sqrt{(x_{2}-x_{1})^{2} } +\sqrt{(y_{2}-y_{1})^{2} }\)

Line segment

is a part of line with a definite length. It has two ending points whereas a line has no end points and extended infinitely in both the direction. Line which joins both ending points with possible shortest way is known as

Line segment

        A ______________________ B    

       (x₁,y₁)                                             (x₂,y₂)      

This line segment can be represented as\(\overline{AB}/\overline{BA}\) . In other word we can say line segment is subset of line, so it contains all the points of line lying between both end point of segment. For shorter length it can simply measure by ruler A bar (-) is always on top of its notation {\(\overline{AB}/\overline{BA}\)}.

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Answer:

μ=1/5=0.2

Explanation:

using the formula

Fs=Fn*μ

Where

Fs is the static force

Fn = Normal force

μ= coefficient

so if Fn=25n

and it requires 5 n to start moving, means the max Fs is 5n

5=25μ

μ=5/25

μ=1/5=0.2

Answer:

a moving car

Explanation:

a body remains in its constant state unless un extenal force is applied.

Answer:

a. When you are pressing downwards the energy stored is potential elastic energy due to the elasticity of the stretchy skin.

b. When you are high up in the air the energy stored is potential energy due to your weight and the distance to the ground.

Hope this Helps!

If you have Any questions Please Ask.

Answer:

If this is multiplication then the answer would be 3000

Explanation:

Sorry if it is not multiplication. Next time put what it is then i will give you the answer you wanted. Hope this helps!

Answer: thermal energy

Explanation:

The total mechanical energy of the bicyclist is 1400 J, obtained by adding her potential energy of 720 J and kinetic energy of 680 J. The correct answer is option B.

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Answer:

Social media has helped many businesses grow and promote itself, and has helped people find a better way to connect and communicate with one another. On the other hand, it's also provided many people with problems involving mental health, emotional insecurities, and waste of time

Explanation:

what they said is correct

Answer:

The work done on the hose by the time the hose reaches its relaxed length is 776.16 Joules

Explanation:

The given spring constant of the of the spring, k = 88.0 N/m

The length by which the hose is stretched, x = 4.20 m

For the hose that obeys Hooke's law, and the principle of conservation of energy, the work done by the force from the hose is equal to the potential energy given to the hose

The elastic potential energy, P.E., of a compressed spring is given as follows;

P.E. = 1/2·k·x²

∴ The potential energy given to hose, P.E. = 1/2 × 88.0 N/m × (4.20 m)²

1/2 × 88.0 N/m × (4.20 m)² = 776.16 J

The work done on the hose = The potential energy given to hose, P.E. = 776.16 J

Answer:

resultant force = 5N

Explanation:

Answer:

5N

Explanation:
Horizontal Force = 3N
Vertical Force = 4N

Resulting force (magnitude) = √(4² + 3²)
= 5 N

Answer:

So, some examples may include the presence of four or five different species of tree in a woodland forest, or perhaps 100 different species of fish, crustaceans and coral in a certain reef.

l will post the option later

pls mark me brainlest

option d

Answer:

1. Make an observation or ask a question.

2. Gather background information.

3. Create a hypothesis.

4. Create a prediction and perform a test.

5. Analyze the results and draw a conclusion.

6. Share the conclusion or decide what question to ask next.

7. Document the results of your experiment.

Hope this helps!

Seven scientific methods are observation, research, hypothesis, experimentation, data collection, result, conclusion and note.

Observation: Observe and identify a problem or question to be solved.

Research: Research and gather information and background knowledge on the problem.

Hypothesis: Develop a possible solution or explanation (hypothesis) for the problem.

Experimentation: Plan and conduct experiments to test the hypothesis.

Data Collection: Collect and analyze data from the experiments.

Results: Interpret and analyze the results to determine if the hypothesis was supported or rejected.

Conclusion: Draw a conclusion and make a statement about the problem based on the evidence collected during the experiments.

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The work was done by the force on the block of 2 kg with an acceleration gravity of  9.81 \(m/s^2\) and at an angle of \(29^o\) 42.83 J.

When an object is moved over a distance by an external force, at least some of that force must be applied in the direction of the displacement. This is known as work in physics. Work may be estimated if the force acting along the path is constant by multiplying the length of the path by the component of the force acting along the path.

To express this formally, the work W is equal to the force f times the length d, or W = fd. The work is W = fd cos if the force is applied at an angle to the displacement.

Given:

The mass, m = 2 kg,

The acceleration, g = 9.81 \(m/s^2\),

θ = angle between block and surface kinetic friction = μ

Calculate the work done by the formula given below,

\(W_{fy}\) = F sinθ

\(W_{fy}\) =  (\(mgsin\)θ)/ (sinθ -  μ * cosθ)

Substitute the values

\(W_{fy}\)  = \((2*9.81 sin29^{o} )/sin29^o - 0.30cos29^o\)

\(W_{fy}\)  = 42.83 J

Therefore, the work done by the force on the block of 2 kg with an acceleration gravity of  9.81 \(m/s^2\), and at an angle of \(29^o\) is 42.83 J.

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Answer:

a.

electric circuit.

Explanation:

A path through which electric charges flow. A continuous, unbroken path through which electrons can flow is a closed circuit. Charges, or current, can flow only through a closed circuit. A break or opening in a circuit creates an open circuit.

Answer:

The answer would be A

Explanation:

An electric circuit.

Hope this helped!

"No one's like me, I'm Harley frickin' Quinn"!

-Harley Quinn (Birds of Prey)

Answer:

1/2

Explanation:

We know that F = ma, so F1 = m1.a1 and F2 = m2.a2.

F1 = 10

F2 = 20

To simplify things consider a1 = a2 = 1

To find m1 divide by a to both sides; m1 = F/a = 10/1 = 10.

To find m2 divide by a to both sides; 21 = F/a = 20/1 = 20.

Ratio of m1 to m2 = 10/20 = 1/2

Answer:

the formula of the compound formed when Beryllium reacts with the sulfate ion is BeSO4

Explanation:

As per the given scenario, Ram will cross the river first.

Ram chooses the quickest route and crosses the river without turning. Ram and Hari can both swim in still water at the same speed, hence their respective speeds when crossing the river will be equivalent. Ram will be able to get to the opposing bank the fastest as a result.

Hari, on the other hand, is swimming upstream at an angle and is being dragged downstream by the water.

Hari's overall travel distance will increase due to the downstream current, however his effective speed will drop in comparison to the other bank. Hari will therefore take longer than Ram to get to the opposing bank.

Thus, Ram will cross the river first in this scenario.

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Answer:

The answer is below

Explanation:

The main difference between a liquid and a gas is that when a liquid is under pressure, its volume "won't change apparently. The reason is that the distance between the molecules of a liquid is relatively small, and the molecules of a liquid extensively withstand the compressive forces. This is similar to the distance between the molecules of a solid."

In a Carnot heat pump, the formula for the coefficient of performance (COP) can be represented as:

\($$COP=\frac{T_{h}}{T_{h}-T_{c}}=\frac{Q_{h}}{Q_{h}-Q_{c}}$$\)

Where

\($T_{h}$\) is the temperature of the heat source,

\($T_{c}$\) is the temperature of the cold sink,

\($Q_{h}$\) is the heat taken from the heat source and

\($Q_{c}$\) is the heat rejected to the cold sink.

Now, the COP of a Carnot heat pump can be expressed as:

\($$COP_{HP}=\frac{T_{h}}{T_{h}-T_{c}}=\frac{75+459.67}{75+459.67-30-459.67}=4.5455$$\)

Thus, the heat taken from outside (heat source) is:

$$Q_{h}=COP_{HP}\times Q_{c}=4.5455\times200000=909100 \mathrm{\ Btu/hr}$$

Therefore, the closest option to the calculated value of\($Q_{h}$\) is 183173 Btu/h.

Hence, option A) 183173 is the correct answer.

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The new fundamental frequency of the organ pipe, after being cut in half and closed off at one end, is 2fo, where fo represents the original fundamental frequency.

When an open organ pipe is cut in half and closed off at one end, the length of the pipe is reduced by half. According to the fundamental frequency equation for a closed organ pipe, the fundamental frequency is inversely proportional to the length of the pipe. Halving the length of the pipe results in doubling the fundamental frequency.
Therefore, the new fundamental frequency is twice the original frequency, which can be represented as 2fo.

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