explain how plants make thier food​

Answer:

The answer is A. A transistor

Answer:

a transistor

Explanation:

A P E X

Answer:

technology will take over

Explanation:

technology was have a huge impact on our world , we will be active and we would have new technology that will help and will become a help in everyday lifestyle

4.0 µm is equal to 0.004 centimeters. This means that 4.0 µm is equal to 1/250th of a centimeter. The fraction of a centimeter that equals 4.0 µm is 1/2500.
1 centimeter (cm) is equal to 10,000 micrometers (µm). Therefore, to find the fraction of a centimeter that equals 4.0 µm, we can set up the following equation:
x/1 cm = 4.0 µm/10,000 µm
Cross multiplying gives us:
10,000 µm × x = 4.0 µm ×  1 cm
Simplifying gives us:
x = 4.0 µm/10,000 µm
Reducing the fraction gives us:
x = 1/2500 cm
Therefore, the fraction of a centimeter that equals 4.0 µm is 1/2500.

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At the top of the hill, the cheetah has gravitational potential energy of about 5.02 joules. The gravitational potential energy of the cheetah at the top of the hill can be calculated using the formula E=mgh, where E is the potential energy, m is the mass of the cheetah, g is the acceleration due to gravity (which is approximately 9.8 m/s^2), and h is the height of the hill.

Since we don't have information about the mass of the cheetah, we can't use this formula directly. However, we do know that the cheetah used all of its kinetic energy to climb the hill. So, we can use the fact that the work done by the cheetah to climb the hill (which is equal to its initial kinetic energy) is equal to the change in gravitational potential energy:

W = ΔE

where W is the work done and ΔE is the change in energy.

In this case, W = 5 J (the initial kinetic energy of the cheetah), and ΔE is the change in gravitational potential energy. Since the cheetah started at ground level and climbed to a height of 5 m, the change in height (h) is 5 m.

So, we can calculate the gravitational potential energy of the cheetah as:

ΔE = mgh

5 J = m(9.8 m/s^2)(5 m)

Solving for m, we get:

m = 0.102 kg

Now that we know the mass of the cheetah, we can use the formula E=mgh to calculate the gravitational potential energy:

E = (0.102 kg)(9.8 m/s^2)(5 m)

E = 5.02 J

Therefore, the gravitational potential energy of the cheetah at the top of the hill is approximately 5.02 joules.

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2482 kg. The answer is also in the image

Answer:

below

Explanation:

that is the procedure above

None of the given options (a, b, c) are equivalent to 652 mmHg.

To determine which of the following options are equivalent to 652 mmHg, we need to compare them and check if they represent the same pressure value. Here are the options:

a) 871 Pa

b) 0.881 atm

c) 17.89 psi

To determine if any of these options are equivalent to 652 mmHg, we can use the following conversion factors:

1 atm = 760 mmHg

1 psi = 51.71 mmHg

1 Pa = 0.0075 mmHg

Now, let's check each option:

a) 871 Pa:

To convert mmHg to Pa, we can use the conversion factor of 1 Pa = 0.0075 mmHg.

652 mmHg × 0.0075 Pa/mmHg ≈ 4.89 Pa

The value of 871 Pa is not equivalent to 652 mmHg, so this option is not correct.

b) 0.881 atm:

To convert mmHg to atm, we can use the conversion factor of 1 atm = 760 mmHg.

652 mmHg ÷ 760 mmHg/atm ≈ 0.858 atm

The value of 0.881 atm is not equivalent to 652 mmHg, so this option is not correct.

c) 17.89 psi:

To convert mmHg to psi, we can use the conversion factor of 1 psi = 51.71 mmHg.

652 mmHg ÷ 51.71 mmHg/psi ≈ 12.61 psi

The value of 17.89 psi is not equivalent to 652 mmHg, so this option is not correct.

In conclusion, none of the given options (a, b, c) are equivalent to 652 mmHg.

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The region of concentrated magnetism at the end of a magnet is called a magnetic pole.

Magnets have two ends, called poles, which are labeled north (N) and south (S). The magnetic field lines of a magnet flow from the north pole to the south pole, creating a magnetic field that can attract or repel other magnets or magnetic materials.

At the ends of the magnet, the magnetic field lines are concentrated and the magnetic force is strongest, creating the magnetic poles. Unlike electric charges, magnetic poles always come in pairs, meaning that every north pole of a magnet is always paired with a south pole. The strength of a magnet's magnetic field depends on the size and strength of its poles.

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The probability that all five cards drawn are black is approximately 0.002641, or about 0.26%.

There are 26 black cards in the deck (13 clubs and 13 spades), and a total of 52 cards. So the probability of drawing a black card on the first draw is 26/52, or 1/2. Since we want all five cards drawn to be black, we need to calculate the probability of drawing a black card on each subsequent draw, given that the previous card was also black.

Since there are now 25 black cards left in the deck (out of a total of 51 cards remaining), the probability of drawing a black card on the second draw is 25/51. Using the same logic, the probability of drawing a black card on the third draw is 24/50, on the fourth draw is 23/49, and on the fifth draw is 22/48.

To find the probability of all five cards being black, we need to multiply the probability of drawing a black card on each draw together:

(1/2) x (25/51) x (24/50) x (23/49) x (22/48) = 0.002641

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Answer:

Planets, moons, asteroids and sun

The air space would be half the size it was at the surface.

It should be noted that airspace means the portion of the atmosphere controlled by a country that's above its territory.

Based on the information given, the The air space would be half the size it was at the surface.

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Answer:

the first one is Primary

the second one I think it's Mature but I don't know

Answer:

the two objects are in thermal equilibrium

Explanation:

thermal equilibrium us the state where two bodies or objects have the same amount of temperature thus no heat conduction

Answer:

erupting volcanoes and oozing fissures

Explanation:

The magnitude of the magnetic field (a) 1.0 mm from the central axis of the wire and cylinder is 2.84 × 10⁻⁵ T.(b) 2.1 mm from the central axis of the wire and cylinder is 4.42 × 10⁻⁶ T. (c) 6.3 mm from the central axis of the wire and cylinder is 3.67 × 10⁻⁷ T.

To calculate the magnetic field at a given distance from the central axis of the wire and cylinder, we can use the Biot-Savart law. The Biot-Savart law states that the magnetic field at a point due to a current-carrying conductor is directly proportional to the current and inversely proportional to the distance from the conductor.

The equation for the magnetic field at a distance r from a long, straight current-carrying wire is given by:

B = (μ₀ / 2π) * (I / r)

Where B is the magnetic field, μ₀ is the permeability of free space (4π × 10⁻⁷ T·m/A), I is the current, and r is the distance from the wire.

For a hollow cylindrical conductor, the magnetic field at a point inside the conductor is given by the same equation as for a wire, and the magnetic field outside the conductor is given by:

B = (μ₀ / 2π) * (I_inner / r) - (μ₀ / 2π) * (I_outer / r)

Where I_inner and I_outer are the currents in the inner and outer surfaces of the conductor, respectively.

In this case, the currents in the wire and the cylindrical conductor are in opposite directions, so we need to subtract the fields produced by each.

Using the given values for the current and the radii of the conductor, we can calculate the magnetic field at each distance.

(a) At a distance of 1.0 mm from the central axis:

B = (μ₀ / 2π) * (I_inner / r) - (μ₀ / 2π) * (I_outer / r)

= (4π × 10⁻⁷ T·m/A / 2π) * (38 A / 0.001 m) - (4π × 10⁻⁷ T·m/A / 2π) * (44 A / 0.001 m)

= 2.84 × 10⁻⁵ T

(b) At a distance of 2.1 mm from the central axis:

B = (μ₀ / 2π) * (I_inner / r) - (μ₀ / 2π) * (I_outer / r)

= (4π × 10⁻⁷ T·m/A / 2π) * (38 A / 0.0021 m) - (4π × 10⁻⁷ T·m/A / 2π) * (44 A / 0.0021 m)

= 4.42 × 10⁻⁶ T

(c) At a distance of 6.3 mm from the central axis:

B = (μ₀ / 2π) * (I_inner / r) - (μ₀ / 2π) * (I_outer / r)

= (4π × 10⁻⁷ T·m/A / 2π) * (38 A / 0.0063 m) - (4π × 10⁻⁷) T·m/A / 2π) * (44 A / 0.0063 m)

= 3.67 × 10⁻⁷ T

Therefore, the magnitudes of the magnetic fields at distances 1.0 mm, 2.1 mm, and 6.3 mm from the central axis of the wire and cylinder are approximately 2.84 × 10⁻⁵ T, 4.42 × 10⁻⁶ T, and 3.67 × 10⁻⁷T, respectively.

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Answer:

f = 99.96 N

Explanation:

Weight of Mr. Tracy, W = 85 kg

The coefficient of sliding friction between his socks and the floor is 0.12.

We need to find the force of friction that opposes Mr. Tracy's motion down the hall.

The force of friction is given by :

\(f=\mu mg\\\\f=0.12\times 85\times 9.8\\\\f=99.96\ N\)

So, the required force of friction is 99.96 N.

The earth is a sphere and the way, we can prove it , is attached in answer.

This are the two practical prove of spherical shape of earth.

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Answer: 98cm

Explanation:

Dimension of rectangle = 30cm by 25cm

Length(l) = 30cm

Width(w) = 25cm

Perimeter of a rectangle = 2(l + w)

Quadrant of circle cut away of each side of the rectangle :

Radius = 7 cm =

That is, the dimension of the triangle reduces by 2 * 7 = 14cm

New length = 30 - 14 = 16cm

New width = 25 - 14 = 11cm

The four corners =( 4 × 2πr ) / 4

2πr = 2 × 22/7 × 7 = 44cm

Perimeter = 2(16cm + 11cm)

= 2(27cm)

Perimeter = 54cm + 44 = 98cm

The sky on Earth is blue because blue light is scattered through the atmosphere as the other colors of light pass through undisturbed. Dark nebulae  have something similar going on.

Nebulae are interstellar dust and gas clouds that get backlighting from stars both inside and behind them. The clouds are illuminated by the photons from these stars that are dispersed throughout them. A nebula does not generate most of the light that appears to come from it; rather, it reflects and refracted light.

A dark nebula, also known as an absorption nebula, is a form of interstellar cloud, particularly a molecular cloud, that is so dense that it absorbs all of the light from objects behind it, including emission or reflection nebulae and background stars, at visible wavelengths.

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The potential energy stored in a 2 kg ball is 58.8 J.

The potential energy stored in a 2 kg ball lifted by 3 m against the gravitational field is calculated as follows;

P.E = mgh

where;

The potential energy stored in a 2 kg ball is calculated as follows;

P.E = ( 2kg x 9.8 m/s² x 3 m )

P.E = 58.8 J

Thus, potential energy increases with increase in position above the ground.

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Answer:

Avery

Explanation:

15 Kilometers is faster than 10 Kilometers

Answer:

Explanation: 6 m / s , with the center of the ball leaving the racquet horizontally 2 . 37 m above the court surface. The net is 12 m away and 0 . 90 m high.

Answer:

15 m/s^2 The first thing to calculate is the difference between the final and initial velocities. So 180 m/s - 120 m/s = 60 m/s So the plane changed velocity by a total of 60 m/s. Now divide that change in velocity by the amount of time taken to cause that change in velocity, giving 60 m/s / 4.0 s = 15.0 m/s^2 Since you only have 2 significaant figures, round the result to 2 significant figures giving 15 m/s^2

Explanation:

The sample is approximately 17,190 years old. To find the age of the sample, we can use the concept of half-life. Option B .

The half-life of carbon-14 is 5,730 years, which means that after 5,730 years, half of the carbon-14 in a sample will have decayed.

In this case, the sample of charcoal contains one eighth (1/8) of its original amount of carbon-14. Since the decay is exponential, we can determine the number of half-lives that have passed by calculating the logarithm base 2 of the fraction remaining.

Let's calculate the number of half-lives:

log2(1/8) = -3

Since the logarithm base 2 of 1/8 is -3, it means that 3 half-lives have passed.

To find the age of the sample, we multiply the number of half-lives by the length of each half-life:

3 half-lives * 5,730 years/half-life = 17,190 years

Therefore, the sample is approximately 17,190 years old.

The answer is B. 17,190 years.

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Answer:

Changes in ocean habitat.

Explanation:

Climate change has a major impact on fish species by changing the conditions of the oceans where they live.

You can move in some direction to reduce this distance to zero if the body remains at rest position.

The distance can be zero when the object is present at rest position. Distance is defined as the length covered by a body. The distance can also be defined as the length of the path between two points. Displacement and distance are used for the measurement of length covered by a body. There is one difference between distance and displacement which is displacement can be zero but distance cannot be zero until it stops moving because distance is the total path covered by a body but displacement is the shortest distance between two points. If the distance is not covered by a body means the body can't move then the distance will  be zero.

So we can conclude that You can move in some direction to reduce this distance to zero if the body remains at rest position.

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The flux of the vector field F across the surface S in the indicated direction is -24π.  

We know that the flux of a vector field F across a surface S is given by the surface integral, ∫∫S F ⋅ dS. Here, dS is the surface area element, which is given by dS = ndS, where n is the unit normal to the surface S, and dS is the area element on the surface S. Let us determine the unit normal to the surface S. For the given surface S, we have the equation of the surface in cylindrical coordinates as z = 3r, where r = √(x^2 + y^2) is the radial coordinate. The unit normal to the surface S is then given by n = ( ∂z/∂r)i + ( ∂z/∂θ)j - k, where i, j, and k are the unit vectors along the x, y, and z axes respectively.  

We now evaluate the first integral. ∫∫S x4y dS = ∫₀⁴ ∫₀^(2π) (r cosθ) (4r sinθ) r dz dθ = 4 ∫₀⁴ ∫₀^(2π) r^3 cosθ sinθ dz dθ = 0. Using cylindrical coordinates, we have the equation of the surface S as z = 3r. Hence, z varies from 0 to 4, and r varies from 0 to √(16 − z^2). We now evaluate the second integral. ∫∫S z dS = ∫₀⁴ ∫₀^(2π) (3r) r dθ dz = 3 ∫₀⁴ ∫₀^(2π) r^2 dθ dz = 24π. Hence, we have ∫∫S F ⋅ dS = 3 ∫∫S x4y dS - ∫∫S z dS = 3(0) - 24π = -24π.

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Explanation:

3: the electricity is generated in the permanent magnet

The correlation coefficient of -0.98 is an indication of a strong negative linear relationship between two variables.

This means that when one variable increases, the other variable decreases, and vice versa. The fact that the coefficient is so close to -1 further indicates that the relationship between the two is very steep and that the slope of the line of best fit is very steep and has a large negative slope. That is, when one variable increases, the other variable decreases rapidly, signifying a strong inverse linear relationship.

This implies that when one variable is at its maximum, the other variable is at its minimum and vice versa. In conclusion, the correlation coefficient of -0.98 reflects a steep negative slope of the line of best fit.

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