The area around an electric charge that experiences the force exerted by the electric
charge.
electric field
electric force
electric poles
electric charge

Answer: 18.81m/s^2

Explanation:

Given the following :

Height of building = 0. 1 km = 100m

Horizontal distance = 85m

Using the equation :

S = 1/2gt^2

And S = 100, g = 9.8m/s^2

100 = 0.5(9.8)(t^2)

100 = 4.9(t^2)

t^2 = (100 / 4.9)

t^2 = 20.408

t = 4.5175214

t = 4.52s

Therefore, initial velocity of ball in horizontal direction;

Using the equation:

S = ut + 0.5at^2

a in horizontal direction = 0

Therefore,

S = ut

85 = u × 4.52

u = (85 / 4.52)

u = 18.805

u = 18.81m/s

Answer:

In mine I said to build the boat accordingly based on what is going to be in it

Explanation:

just remember the density of the boat cannot change but the volume and the mass can

A car initially traveling at 15.0 m/s accelerates at a constant rate of 4.50 m/s2 over a distance of 45.0 m, the time taken to cover this distance  is mathematically given as

t = 2.24 s

Generally, the equation for Kinematic relation is mathematically given as

S = ut + (1/2)at^2

Therefore

45 = 15t + 2.25 t^2

2.25 t^2 + 15 t -45 = 0

t = 2.24 s

In conclusion, the time is taken to cover this distance

t = 2.24 s

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ANSWER:

STEP-BY-STEP EXPLANATION:

Answer:

25 minutes

Explanation:

Edwin Hubble studied the Andromeda galaxy and found that it was an individual galaxy and not part of our own milky way is Hubble discovered this by observing a variable star, known as a Cepheid variable, in the Andromeda galaxy and measured its distance from Earth.

The Cepheid variable was used to measure the galaxy's distance because the star's brightness varied predictably, and the brightness was directly related to its distance from Earth. By studying the Andromeda galaxy, Hubble discovered that it was much farther away from Earth than originally thought, and it was actually a separate galaxy rather than a part of the Milky Way.

This discovery proved the existence of other galaxies outside of our own Milky Way, which was a groundbreaking finding at the time and paved the way for modern astronomy. Overall, Hubble's study of the Andromeda galaxy provided significant evidence to support the theory that the universe was much larger than previously thought and made a huge contribution to our understanding of the universe.

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Answer:

Average acceleration = 0.45 m/s²

Explanation:

Given the following data;

Initial velocity, u = 0m/s

Final velocity, v = 8.6 m/s

Time, t= 19 seconds

To find the average acceleration;

In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

This simply means that, acceleration is given by the subtraction of final speed from the initial speed all over time.

Mathematically, acceleration is given by the formula;

\(Acceleration = \frac{initial speed - final speed}{time}\)

Substituting into the formula, we have;

Acceleration = (8.6 - 0)/19

Acceleration = 8.6/19

Average acceleration = 0.45 m/s²

c) Maximum charge is 5.34 × 10^-4 C.

b) the potential difference across the plates is 7.12 V.

(a) Maximum charge stored on an air-filled parallel-plate capacitor is q = ε₀EA, where ε₀ is the permittivity of free space, A is the area of the plates, and E is the maximum electric field strength of 3.00 3 10⁶ V/m.

Therefore, q_max = ε₀EA = (8.85 × 10^-12 C^2/Nm^2)(2.00 × 10^24 m^2)(3.00 × 10^6 V/m) = 5.34 × 10^-4 C.

(b) The potential difference (V) across a capacitor is V = q/C, where C is the capacitance.

Given q_max = 5.34 × 10^-4 C and C = 75.0 μF = 75.0 × 10^-6 F, the potential difference is V = q_max/C = (5.34 × 10^-4 C)/(75.0 × 10^-6 F) = 7.12 V.

Therefore, the potential difference across the plates is 7.12 V.

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Answer:

B

Explanation:

The statement that best describes the direction of heat flow by conduction between two samples of the same material is that heat flows from faster molecules to slower molecules when they collide.

Heat refers to the difference in temperature between two substances. Heat flows in the direction of an hot substance to cold.

However, in a hot substance, the particles move faster than that of a cold substance.

Therefore, the statement that best describes the direction of heat flow by conduction between two samples of the same material is that heat flows from faster molecules to slower molecules when they collide.

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Answer:

Alternating

Explanation:

Edge 2020

The most recent view of the atom is the quantum mechanical model of the atom.

We know that the atom is smallest part of the substances that can take part ion a chemical reaction.

An atomic model is a theoretical construct that explains the properties and behavior of atoms, the basic building blocks of matter. The most widely accepted atomic model is the quantum mechanical model, which describes atoms as consisting of a nucleus of protons and neutrons, surrounded by a cloud of electrons.

The electrons occupy energy levels or orbitals, and their behavior is described by the principles of quantum mechanics. The earliest atomic model was proposed by John Dalton in the early 19th century, which was a classical mechanical model.

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Answer:

Option a

Explanation:

The light that strikes this surface is referred to as the incident ray, and the light reflected is referred to as the reflected ray - as one might have guessed. Respectively, the angle with which the incident ray struck the surface is known as the " incident angle, " while the angle with which the reflected ray reflects off this surface is known as the " angle of reflection. "

_______________________________________________________

By the law of reflection, you would say that the incident angle is equal to the angle of reflection. Thus, the answer is option a.

Hope that helps!

Given that the mass of the ball is m = 0.57 kg.

The speed of the ball is

A) The kinetic energy at point A will be

B) Given that the kinetic energy,

The ball's speed at point B will be

C) The total work done on the ball to move from point A to B is

Answer:

The magnetic force disappears

The statements are as follows:

a) True: The recovery of magnetization along the z-axis after a 90º pulse does not necessarily result in loss of magnetization from the xy-plane, as the xy-plane magnetization may undergo a spin-spin relaxation process.

b) False: A static magnetic field B that is homogeneous does not result in a free induction that persists for a long time, but rather a stable magnetic environment.

c) False: A short tissue T1 indicates a fast spin-lattice relaxation process, not a slow one.

a) True.

b) False.

c) False.

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Answer:

apply to the breaks gently

Explanation:

The power expended when lifting the barbell can be calculated using the formula: \(Power = Work / Time,\)

where Work is the amount of work done and Time is the time taken to do the work.

To calculate the work done, we use the formula:

\(Work = Force * Distance\),

where Force is the force applied and Distance is the distance over which the force is applied.

In this case, the distance lifted is given as 2.2 m and the time taken is 2 s. We need to calculate the force applied to the barbell in order to determine the work done.

The force applied can be calculated using Newton's second law:

\(Force = Mass * Acceleration\\\).

Given that the mass of the barbell is not provided, we cannot determine the force and therefore cannot calculate the power expended without that information. Please provide the mass of the barbell in order to calculate the power.

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The resulting equation of motion for the system is given by m × x''(t) + k × x(t) = f(t), which is 2 × x''(t) + 18 * x(t) = 2 * sin(2t).

What is  equation of motion?

The equations of motion are a set of mathematical relationships that describe the motion of objects under the influence of forces. There are different sets of equations of motion, depending on the specific scenario and the type of motion being considered (linear motion, projectile motion, circular motion, etc.). The equations of motion for linear motion, also known as the equations of uniformly accelerated motion.

To find the equation of motion for the system, we start with Newton's second law of motion, which states that the sum of forces acting on an object is equal to the mass of the object multiplied by its acceleration. In this case, the object is the 2-kg mass attached to the spring.

The force exerted by the spring is proportional to the displacement of the mass from its equilibrium position, and it can be expressed as F_spring = -k× x(t), where k is the spring constant and x(t) is the displacement of the mass at time t.

In addition to the force exerted by the spring, there is an external force f(t) = 2 ×sin(2t) acting on the mass.

Applying Newton's second law, we have the equation of motion: m ×x''(t) + k ×x(t) = f(t).

Substituting the given values, m = 2 kg and k = 18 N/m, we obtain 2 ×x''(t) + 18 × x(t) = 2 ×sin(2t).

Therefore, the resulting equation of motion for the system is 2 × x''(t) + 18 × x(t) = 2 × sin(2t).

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Answer:

1.875 joules

Explanation:

K.E=1/2 mv²

K.E=1/2 0.15×5²

K.E=1.875 joules

Answer:

55

Explanation:

because the formula of frequency=wavelength × distance

It depends on two factors: The direction of application of force and the coefficient of friction, \(\mu\), between the object and the surface on which the object is placed.

If the direction of application of force is vertically downwards, then the object will not move for any value of \(\mu\).

If the coefficient of friction is zero, \(\mu=0\), then any value of force that is not in a vertically downward direction, the object will move.

If the direction of application of force is not vertically downwards, then it depends on the value of frictional force.

The property of Venus's atmosphere that gave rise to the runaway greenhouse effect is the abundance of carbon dioxide (CO₂).

Venus has an extremely dense and predominantly carbon dioxide atmosphere, with CO₂ constituting about 96% of its atmospheric composition. This high concentration of greenhouse gases creates a thick blanket around the planet, trapping heat from the Sun and preventing it from escaping back into space. As a result, Venus experiences a significant greenhouse effect, causing its surface temperatures to soar to extreme levels.

The greenhouse effect occurs when certain gases in an atmosphere absorb and re-emit infrared radiation, trapping heat and warming the planet. In the case of Venus, the high concentration of CO₂ acts as a potent greenhouse gas, trapping a substantial amount of heat energy. The absorbed solar radiation causes the temperature to rise, leading to a positive feedback loop. As the temperature increases, more carbon dioxide is released from surface reservoirs, such as rocks and volcanic activity, further enhancing the greenhouse effect and causing even higher temperatures.

This positive feedback loop sets off the runaway greenhouse effect on Venus, where the extreme heat leads to the release of more CO₂, which in turn traps more heat, causing a continuous cycle of heating. As a result, Venus experiences a surface temperature of around 900 degrees Fahrenheit (475 degrees Celsius), hot enough to melt lead.

The runaway greenhouse effect on Venus serves as a cautionary example of the potential consequences of unchecked greenhouse gas emissions on Earth. Understanding the factors that contribute to Venus's extreme greenhouse effect helps scientists better comprehend the delicate balance of Earth's atmosphere and the importance of mitigating human-induced greenhouse gas emissions to avoid similar catastrophic outcomes.

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Answer:

4

Explanation:

Not all plants can grow flowers. Only the ones thay have buds can.

Not all plants produce flowers. Hence, this is the characteristic which is not common in all plants.Therefore, the correct option is 4.

Flowers are the structures of plants. They are responsible for producing seeds that will grow into new plants. Flowers typically consist of a colorful or ornamental part called the corolla, which attracts pollinators such as bees and butterflies, and a reproductive part called the stamen and pistil, which contain the plant's male and female organs.

Not all green plants produce flowers. Flowering plants are a type of plant that belong to the group Angiosperms, but there are also non-flowering plants like ferns and mosses that do not produce flowers. Therefore, the correct option is 4.

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The distance between Jupiter and the sun is 5.2 AU.

According to Kepler's third law, the square of the period of revolution of planets is proportional to the cube of their mean distances from the sun. From this; T^2 = r^3.

Now, we are told that the orbital period (T) is 11. 9 Earth years. We have to make the distance the subject of the formula.

r =T^2/3

r = (11.9)^2/3

r = 5.2 AU

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Answer:

The answer is A. 5.2 AU

Explanation:

in jus dat ni ni fr

Answer:

Mixture C (salt and sugar)

Explanation:

Both salt and sugar can dissolve in water. And you can't just separate the mixture by filtering it like you could in the other mixtures.

Answer:The resistance of a 24 W, 12 V filament lamp depends on the current flowing through the lamp. For currents up to 0.8 A, the resistance has a constant

Explanation:

Answer:

The answer is Mass

Explanation:

I took the tests and study kinda yeahhhhhh

AHHHHHHHHHHHHHHHHHh chicks butts

Answer:

Science is also a dog because sometimes it can can be nice such as a flower growing or the pretty flower turning into a flower that can attack you

Explanation: