how much does the energy stored in an inductor change if the current through the inductor is doubled

The slope increases or decreases downstream, are less common and do not accurately represent the typical longitudinal profile of a streambed.

The sketch that best represents the longitudinal profile of the slope of a streambed is option A. In this case, the slope is constant and steep downstream.

This means that the streambed maintains a consistent, steep gradient as it progresses in the downstream direction. This profile is commonly associated with youthful streams or those in mountainous regions, where the force of gravity allows the water to flow rapidly down steep slopes.

Option B, where the slope is constant and shallow downstream, is more characteristic of mature or old-age streams.

Options C and D, where the slope increases or decreases downstream, are less common and do not accurately represent the typical longitudinal profile of a streambed.

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It would take approximately 8.3 minutes for charged particles ejected from the sun to travel the distance of 150,000,000 kilometers (93,000,000 miles) to Earth at a speed of 1.6 million km/h.

At the equator, there are two periods of maximum daily insolation, they occur near equinoxes (March 21 & September 23), when the sun is overhead at the equator.

There are also two minimum periods near the solstices (June 21 & December 23), when the subsolar point moves farthest north and south from the earth.

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Answer:

Explanation:

Answer:

Do action and reaction pairs of forces balance one another ?

Which force is greater strength either gravitational force or electromagnetic force ?

A vector of magnitude 5 units is inclined, at an angle of 35° to the X - axis and another vector of magnitude 10 units is inclined at 55° to the X - axis. What is the magnitude of the sum of the vector components (i) along the x - axis, (ii) along the y - axis ? (10 - marks)

Answer:

The answer for cos(30°) is 0.87

Answer:

Solar panels

sun light into electricity

The speed of light in ice at 20°C has the value 2.92 × 10⁸ m/s.

We know the expression for refractive index of a medium as,

Refractive index n = velocity of light in vacuum / velocity of light in a medium

It does not have units as it is a ratio.

Given that,

Velocity of light in a medium is 2.92 × 10⁸ m/s.

We know the speed of light in vacuum is 3 × 10⁸ m/s.

The refractive index n = (3 × 10⁸)/(2.92 × 10⁸) = 1.31

The substance with the refractive index 1.31 is ice at 20°C.

Thus, the required substance is ice.

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Answer:

They can be replanted.

Explanation:

Renewable sources can be found again and again, similar to how you can plant a tree again to receive food sources and heat production, which in turn is useful to humans.

When The trees are considered a renewable resource because They can be replanted. The correct option is 'B'.

When Renewable sources can be found, again and again, similar to how you can plant a tree again to receive food sources and also heat production, they are in turn useful to humans.

When the renewable resources are resources, generally naturally happening, they can replenish to the rate that they can return the used volume and also be swallowed.

A renewable resource will either produce itself naturally through automatic approaches to that resource or through human interaction and guidance.

Therefore, The correct option is 'B'.

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Answer:

B, A, C

Explanation:

The momentum is equal to the mass times the velocity, so for each car the momentum is equal to

Car A

Momentum = Mass x Velocity

Momentum = 1,500 kg x 10 m/s

Momentum = 15,000 kg m/s

Car B

Momentum = Mass x Velocity

Momentum = 1,500 kg x 25 m/s

Momentum = 37,500 kg m/s

Car C

Momentum = Mass x Velocity

Momentum = 1,000 kg x 10 m/s

Momentum = 10,000 kg m/s

Then, the decreasing momentum is B, A, C because

37,500 is greater than 15,000 and 15,000 is greater than 10,000

So, the answer:

B, A, C

Answer:

It's d

Explanation:

Answer: D

Explanation:

Force of gravity

Answer:

v = 6.72 m/s

Explanation:

Given that,

Vertical height, h = 2.31 m

We need to find the speed at the bottom of the slide. Let the speed be v. We can find it using the conservation of energy such that,

\(\dfrac{1}{2}mv^2=mgh\\\\v=\sqrt{2gh}\)

Put all the values,

\(v=\sqrt{2\times 9.8\times 2.31} \\\\v=6.72\ m/s\)

So, her speed at the bottom of the slide is equal to 6.72 m/s.

Answer:

when two electrons are in close proximity Each atom's electron begins to detect the proton of the other atom. As a result, it is attracted to not just its own proton, but also the proton of the other atom.

(a) The coefficients of static friction between the skates and the ice is 0.37.

(b) The coefficients of kinetic friction between the skates and the ice is 0.32.

The coefficient of static friction is the ratio of force of friction to weight of the object.

μ = Ff / R

where;

The coefficients of static friction between the skates and the ice is calculated as follows;

μ = Ff / R

μ = ( 198 N ) / ( 55 kg x 9.8 m/s² )

μ = 0.37

The coefficients of kinetic friction between the skates and the ice is calculated as follows;

μ = Ff / R

μ = ( 175 N ) / ( 55 kg x 9.8 m/s² )

μ = 0.32

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Answer:

The liquid turns to a gas.

Explanation:

If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. Particles in the middle of the liquid form bubbles of gas in the liquid.

One example of gender shift in public roles is in the field of politics. In many countries, women and non-binary individuals are still a minority in political positions, and their presence can challenge traditional gender roles and expectations. When women or non-binary individuals hold political positions, they may face discrimination or prejudice from other politicians or the public, based on their gender identity. However, as more women and non-binary individuals enter politics, they are slowly shifting the gender dynamics and expectations of what it means to be a politician.

Another example of gender shift in public roles is in the entertainment industry. Historically, the industry has been dominated by men and traditional gender roles have been reinforced in many forms of media. However, in recent years, more women and non-binary individuals have gained visibility and recognition in the industry, challenging traditional gender roles and norms. While there is still a long way to go in terms of achieving equal representation and opportunities, these shifts have brought attention to the need for diversity and inclusion in the entertainment industry.

Answer: c

Explanation:

Answer:

This can be explained by the equation Force=Mass x Acceleration. Vehicle 2 has a higher acceleration than Vehicle 1, which means it accelerates quicker. However, this increased acceleration is achieved by a less forceful engine. This is possible because Vehicle 2 has a lower mass than Vehicle 1, meaning the same force applied to Vehicle 2 results in greater acceleration. Therefore, Vehicle 2 has a greater acceleration than Vehicle 1 but has a less forceful engine.

Given:

The specific heat of the material is c Cal/(gram°C)

The mass of the material, m=5 g

The initial temperature of the material, T₁=10 °C

The final temperature of the material, T₂=37 °C

To find:

The expression for the amount of heat added to the material.

Explanation:

The specific heat of a material is the heat required to raise the temperature of the unit mass of the material by one degree celcius.

From the equation of specific heat, the amount of the heat added to a material is given by,

On substituting the known values,

Final answer:

Thus the correct answer is option A.

(a) The x and y component of the vectors is -11.38 units and 15.96 units respectively.

(b) The  x and y component of the vectors is 29.1 units and -23.92 units respectively.

(a) The x and y component of the vectors is calculated as follows;

vector = 19.6 units and angle = 125.5⁰

x = 19.6 x cos(125.5)

x = -11.38 units

y = 19.6 x sin(125.5)

y = 15.96 units

(b) The  x and y component of the vectors is calculated as follows;

vector = 29.1 units and angle = 235.3⁰

x = 29.1 x cos(235.3)

x = -16.57 units

y = 29.1 x sin(235.3)

y = -23.92 units

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Answer:

Usage

Explanation:

A product life cycle refers to the duration from the introduction of the product into the market until it's taken off the shelves.

A program of covered scheduled maintenance for the cars refers to the practice in which the dealership will cover the costs of everything when you bring in your vehicle for maintenance.

In this question, the mentioned practice specifically targets the stage - Usage of the product life cycle

Answer:

45 m

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 0.5 kg

Initial height (h₁) = 30 m

Initial potential energy (PE₁) = 20 J

Final potential energy (PE₂) = 30 J

Final height (h₂) =?

From:

PE = mgh

PE / h = mg = constant

Thus,

PE₁ / h₁ = PE₂ / h₂

With the above formula, we can obtain the final height of the bird as follow:

Initial height (h₁) = 30 m

Initial potential energy (PE₁) = 20 J

Final potential energy (PE₂) = 30 J

Final height (h₂) =?

PE₁ / h₁ = PE₂ / h₂

20 / 30 = 30 / h₂

Cross multiply

20 × h₂ = 30 × 30

20 × h₂ = 900

Divide both side by 20

h₂ = 900 / 20

h₂ = 45 m

Therefore, the final height of the bird is 45 m.

Answer: it is A hope that helps

Explanation:

Wave functions, provide information about the behavior and properties of quantum particles, such as electrons.

Wave functions, denoted by the symbol Ψ (Psi), are a fundamental concept in quantum mechanics. They provide information about the behavior and properties of quantum particles, such as electrons.

The square of the wave function, |Ψ|^2, represents the probability density of finding a particle in a particular location.

In other words, it describes the likelihood of a particle being at a specific position in space. Additionally, the wave function contains information about the energy levels and momentum of the particle.

By solving the Schrödinger equation, one can determine the allowed wave functions for a given quantum system and gain insights into the behavior and characteristics of particles at the microscopic scale.

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Answer:

Evaporation

Hope this helps :)

Answer:

12.7 m

Explanation:

The following data were obtained from the question:

Initial velocity (u) = 56.7 Km/hr

Maximum height (h) =..?

First, we shall convert 56.7 Km/hr to m/s. This can be obtained as follow:

Initial velocity (m/s) = 56.7 x 1000/3600

Initial velocity (m/s) = 15.75 m/s

Next, we shall determine the time taken to get to the maximum height. This can be obtained as follow:

Initial velocity (u) = 15.75 m/s

Final velocity (v) = 0 m/s

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) =?

v = u – gt (since the ball is going against gravity)

0 = 15.75 – 9.8 × t

Rearrange

9.8 × t = 15.75

Divide both side by 9.8

t = 15.75/9.8

t = 1.61 secs.

Finally, we shall determine the maximum height as follow

h = ½gt²

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) = 1.61 secs.

Height (h) =..?

h = ½gt²

h = ½ × 9.8 × 1.61²

h = 4.9 x 1.61²

h = 12.7 m

Therefore, the maximum height reached by the ball is 12.7 m

A homogeneous electrostatic force of strength 564 N/C is initially present around two substances, an electrons and a proton. if the atoms and molecules are unrestrained.

According to our inquiry, a electron as well as a proton will attract one another with a electrical force of equal strength when they are placed in a magnetic field because of their opposing polarities. However, because of their opposing charges, the force will act in the opposite direction.

Proton, electron, and an antineutrino do not make up a neutron. These particles are simply byproducts of its decay. One up quark, two down quarks, and numerous "intermediary particles" known as gluons, that carry a interaction between the quarks, make up a neutron.

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Answer:

4.8 A

Explanation:

Voltage = current x resistance

(V = IR)

12 = I (0.5 +2)

I = 4.8 A

Explanation:

The speed is determined by the distance that is traveled by an object during a given amount of time. If the time is decreased, the speed would increase. The reason for this is that time is inversely proportional to the speed of an object.