Which statement describes the direction of the current and the magnetic field when the left hand rule is being used?

Answer:

no it's opaque

hope this helps

have a good day :)

Explanation:

Answer:

infared rays pls give me brainiest]

Answer:

bc I'm ugly

Explanation:

i just answer a random thing bc I know is not from school

Answer:

you shouldn't, if u were to choose me then you would be making a huge mistake since choosing me would go against why you shouldn't choose me.

The potential energy of the roller coaster is 176,400 J (joules).

The potential energy of an object is given by the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or vertical position of the object.

In this case, the roller coaster is at a peak of 20m and has a mass of 900kg. The acceleration due to gravity, g, is approximately 9.8 \(m/s^2\).

Using the formula, we can calculate the potential energy:

PE = mgh

= (900 kg)(9.8 \(m/s^2\))(20 m)

= 176,400 J

Therefore, the potential energy of the roller coaster is 176,400 J (joules).

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I like the sport of football as there is a sense of freedom in playing the game.

Everyone has a favorite sport and my favorite sport is football. I love the game of football as it is fun game to watch and play.

It requires a lot of physical exertion because we must sprint around the field to score goals and defend our side of the goal posts at the same time. Every day at school, my classmates and I play football.

It is a popular sport throughout the world. The best teams from every country makes it to the world cup and people across the globe watch it with so much interest. I also like football because there is a sense of freedom in playing this game.

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The kinetic energy of the book after it is slids a distance of 2 meters will be 10 Joules.

The work-energy theorem states that "the work done on an object is the change in its kinetic energy".

Hence;

Kinetic energy = work done

Note that: work-done is expressed as:

Work done = f × d

Where f is force applied and d is distance traveled.

Given that:

Force applied f = 5 newton

Distance d = 2 meters

Work done = ?

Plug these values into the above formula and solve for the workdone.

Work done = f × d

Work done = 5N × 2m

Work done = 10Nm

Work done = 10 Joules

Therefore, the kinetic energy is 10 Joules.

Option B) 10 J is the correct answer.

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The change in the displacement is 70 m

Recall that the displacement is obtained as the product of the velocity and time. We have the velocity at two intervals.

At v1, the displacement can be obtained from;

x1 = 0.5 * 20 = 10 m

At v2, the displacement can be obtained as;

x2 = 2 * 40 = 80 m

Now

Δx = 80 m - 10 m = 70m

Thus the change in the displacement is 70 m

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Answer:

True

Explanation:

the independent variable would be like if the psychologist is experimenting the impact of sleep deprivation, sleep deprivation would be the independent variable that is being manipulated or changing its level systematically in the experiment.

Since we know that the time it takes to the cliff will be half the time it takes for the echo to be heard, the distance is:

So, the cliff is 635.4 meters away.

Hooke's Law can be given as follows sometimes:

The restoring force of a spring is equal to the spring constant multiplied by the displacement from its normal position:

F = -kx

Where, F = Restoring force of a spring (Newtons, N)

k = Spring constant (N/m)

x = Displacement of the spring (m)

The negative sign relates to the direction of the applied force and by convention, the minus or negative sign is present in F = -kx. The restoring force F is directly proportional to the displacement (x), according to Hooke's law. When the spring is compressed, the displacement (x) is negative. It is zero when the spring is at its original length and positive when the spring is extended.

Practically, Hooke's Law is applicable only within a limited frame of reference, and through experimenting, this statement proves to be true. Because materials cannot be compressed beyond a certain size or expanded beyond a certain size without some permanent deformation or change of their original state.

The law only applies under some conditions such as a limited amount of force or deformation. Factually, many materials will noticeably deviate from Hooke's law even before those elastic limits are reached.

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Answer:

x₂ = 1.33 m

Explanation:

For this exercise we must use the rotational equilibrium condition, where the counterclockwise rotations are positive and the zero of the reference system is placed at the turning point on the wall

            Στ = 0

            W₁ x₁ - W₂ x₂ = 0

where W₁ is the weight of the woman, W₂ the weight of the table.

Let's find the distances.

Since the table is homogeneous, its center of mass coincides with its geometric center, measured at zero.

           x₁ = 2.5 -1.5 = 1 m

The distance of the person is x₂ measured from the turning point, at the point where the board begins to turn the girl must be on the left side so her torque must be negative

            x₂ = \(\frac{M_1g }{m_2 g} \ x_1\)

let's calculate

           x₂ = \(\frac{100}{75} \ 1\)

           x₂ = 1.33 m

Answer:

Determining how data will be gathered

Explanation:

As a scientist considers the use of a particular set of experimental procedures to carry out his research, an important consideration is the method of data collection.

The experimental procedures chosen must be those that make the process of data collection much easier, efficient and lead to collection of reliable data.

Hence determining the method of data collection is very important when designing a set of experimental procedures.

Answer:

Lotion - Semisolid

Suspension - Liquid

Capsule - Solid

The way in which one atom interacts with another atom is mostly influenced by the configuration of the electrons farthest from the nucleus.

Option A.

An atom can be defined as the smallest part of a substance that cannot be broken down chemically. Each atom has a nucleus (center) made up of protons (positive particles) and neutrons (particles with no charge).

The arrangement of electrons in orbitals and shells around the nucleus is referred to as the electronic configuration of the atom.

Thus, we can conclude that the way in which one atom interacts with another atom is mostly influenced by the configuration of the electrons farthest from the nucleus.

The remaining options do not fit the empty space properly, and they include;

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Answer:

D.some of its potential energy is transformed into kinetic energy each time it falls.

Answer:

The options that increase greenhouse gases are:

Coal burning power plant

Exhaust from a car

Wind power and solar power do not increase greenhouse gases, as they are considered renewable energy sources that do not produce direct emissions of greenhouse gases during their operation.

Explanation:

Answer:

Explanation:

Coal burning power plants and exhaust from a car increase greenhouse gases

Wind power and solar power do not produce greenhouse gases

I hope this helps!

Answer:

NO

Explanation:

because it just doesn't.

Answer:

The image shows an object at rest, then a force pushes the car into the water. Newton's First Law describes that objects at rest remain at rest, and objects at motion remain at motion, unless they are bothered by a force. This law comes into play with the image because the object is first seen at rest, on the top of another object. Then it is seen falling, and is now in motion at it descends into the water. Newton's Second Law, F = MA, is seen in the image is the object accelerates into the water from the force. Newton's Third Law, which states 'for every action there is an equal but opposite reaction', is in this image as the object is falling, then makes contact with the water.

Explanation: Newton's Laws

The mass of the picture is approximately 5.19 kilograms.

The deformation in this case is called shear deformation, a type of deformation that occurs when parallel internal surfaces slide past one another. It is caused by shear stress in the structure. The shear stress (τ) is the force (F) applied divided by the cross-sectional area (A) of the nail. The shear strain (γ) is the displacement (Δx) divided by the original length (L0).

The relationship between shear stress and shear strain is given by the shear modulus (G) in the formula:

τ = G * γ

To find the weight of the picture, we need to calculate the shear stress first:

The cross-sectional area A of the nail is given by the formula for the area of a circle:

A = πr² = π(d/2)² = π(0.0015 m / 2)² = 1.767 x 10^-6 m².

The shear strain γ is given by:

γ = Δx / L0 = (1.80 x 10^-6 m) / (5 x 10^-3 m) = 0.36.

The shear stress τ can now be calculated by rearranging the formula:

τ = G * γ

=> τ = (80 x 10^9 N/m²) * 0.36 = 28.8 x 10^9 N/m²

The force F on the nail is equal to the weight w of the picture, and it can be calculated from the shear stress:

τ = F / A

=> F = τ * A = (28.8 x 10^9 N/m²) * (1.767 x 10^-6 m²) = 50.89 N.

Since weight w = m * g, where m is mass and g is the acceleration due to gravity (approximately 9.81 m/s²), we can find the mass m:

m = w / g = (50.89 N) / (9.81 m/s²) = 5.19 kg.

So, the mass of the picture is approximately 5.19 kilograms.

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Dream theories have in common that they are related to conceptions about reality.

Dream theories are a series of theories that focus on explaining the dreams that an individual experiences when sleeping.

There are three main theories about dreams that are:

Activation-synthesis theory: This theory states that the brain is randomly activated during sleep and that brain activity is generally associated with memories and sensory information.

Theory of psychoanalysis: This theory states that dreams contain unconscious information for the individual about his interpretation of reality. This information is later synthesized and processed by reason so that the individual takes it as a meaningful message.

Threat Rehearsal Theory: This theory states that dreams are "rehearsals" of risk situations in which situations that are considered dangerous to the individual are simulated and in which the brain is trained to act in them.

The main similarity that these three theories have is that they are related to the interpretation that the individual has of his reality and the sensory information of his interaction with the environment.

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Several Kilometres below the earth at Sea level

.

Answer:

The formula is a = F m so in this case a = 5 10 = 0.5 m s 2

Explanation:

Explanation:

All the energy in oil, gas, and coal originally came from the sun captured through photosynthesis. In the same way that we burn wood to release energy that trees capture from the sun, we burn fossil fuels to release the energy that ancient plants captured from the sun.

You would need to travel approximately 0.25 light years to reach the star located 4.2 light years away in only 3 months, as measured by your own wristwatch.

According to special relativity, as an object approaches the speed of light, time dilation occurs. This means that time would appear to pass slower for the traveler relative to a stationary observer. To calculate the distance you would need to travel, considering time dilation, we need to account for the time dilation factor γ (gamma). The formula for time dilation is T' = T / γ, where T' is the observed time by the traveler and T is the time measured by the stationary observer.

Assuming you want to travel 4.2 light years in 3 months (as measured by your wristwatch), we need to find the value of γ that satisfies T' = 3 months. Solving the equation, we find γ = T / T' = 4.2 years / 3 months. Converting years to months, we have γ = 50.4 months / 3 months = 16.8. Now, we can calculate the distance you would need to travel by dividing the observed distance (4.2 light years) by γ: 4.2 light years / 16.8 = 0.25 light years.

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Answer:

it should not be dropping it goes up in the air then it goes down

230.4 gm of ethanol is produced in the conversion of ethanol to acetaldehyde and the molar mass of sugar is 180,16 g/mol.

Fermentation is a metabolic process that converts sugar to acids, gases or alcohol. It occurs in yeast and bacteria, and also in oxygen-starved muscle cells, as in the case of lactic acid fermentation. Fermentation is also used more broadly to refer to the bulk growth of microorganisms on a growth medium, often with the goal of producing a specific chemical product like enzyme, vaccines, antibiotics, food product/additive etc.

Pyruvate is CH3COCOO−  is inorganic phosphate. Two ADP molecules and two Pi are converted to two ATP and two water molecules via substrate-level phosphorylation. Two molecules of NAD+ are also reduced to NADH.

In oxidative phosphorylation the energy for ATP formation is derived from an electrochemical proton gradient generated across the inner mitochondrial membrane (or, in the case of bacteria, the plasma membrane) via the electron transport chain. Glycolysis has substrate-level phosphorylation (ATP generated directly at the point of reaction).

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92.14 gm ethanol will be produced, if 180.16 grams of sugar was used in the alcohol fermentation reaction.

Alcohol fermentation is the breakdown reaction of sugar in the absence of oxygen, to produce wine(ethanol) and carbon dioxide. Following reaction takes place:

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

Chemical formula of the sugar is C₆H₁₂O₆,

Chemical formula of ethanol is C₂H₅OH

Atomic weight of sugar = (12×6 + 12×1 + 16×6) =  180 gm/mole

Atomic weight of ethanol = (12×2 + 5×1 +16+1) = 46 gm/mole

180 gm of sugar makes one mole, which produces 2 moles of ethanol.

So the weight of ethanol produced will be 2 × 46.07 = 96.14 gm

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The net force on q1 is 9.94 N.

From Coulomb's Law, the force between two point charges is given by:

where;

All the charges have the same charge and magnitude and are separated by the same distance.

The force between q1 and q2 is:

F12 = (9 * 10⁹ N * m²/C²) * (-2.35 x 10⁻⁶ C)² / (0.100 m)²

F12 = 4.97 N

The positive sign indicates that the force is repulsive

Similarly, the force between q2 and q3 is:

(9 * 10⁹ N * m²/C²) * (-2.35 x 10⁻⁶ C)² / (0.100 m)²

F12 = 4.97 N

The positive sign indicates that the force is repulsive

The net force on q1 will be:

Fnet = F12 + F23

Fnet = 4.97 N + (4.97)

Fnet = 9.94 N

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Based on research by Abraham Maslow, the meta-needs which are fulfilled by "making more money" are none of the meta-needs.

According to Abraham Maslow, meta-needs are human needs that relate to beauty, knowledge and creativity.

All of these can be met without having to make more money so it stands to reason that there are no meta-needs that can be met by making more money.

The main need that is met by making more money according to Maslow is Security and it is not a meta-need.

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The airplane will strike the ground at a horizontal distance of 490 meters.

To determine how far the airplane will strike on the ground, we need to consider the horizontal distance traveled by the airplane during its flight.

The horizontal distance traveled by an object can be calculated using the formula:

Distance = Speed × Time

In this case, the speed of the airplane is given as 100 meters per second and the time it takes to cover the distance of 490 meters is unknown. Let's denote the time as t.

Distance = 100 m/s × t

Now, to find the value of time, we can rearrange the equation as follows:

t = Distance / Speed

t = 490 m / 100 m/s

t = 4.9 seconds

Therefore, it takes the airplane 4.9 seconds to cover a horizontal distance of 490 meters.

Now, to calculate the distance on the ground where the airplane will strike, we can use the formula:

Distance = Speed × Time

Distance = 100 m/s × 4.9 s

Distance = 490 meters

It's important to note that this calculation assumes a constant speed and a straight flight path. In reality, various factors such as wind conditions, changes in speed, and maneuvering can affect the actual distance traveled by the airplane.

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