Why people won’t want to live near wind turbines.

Answer:

false

Explanation:

hopes its right

Answer:

True

Explanation:

Answer:6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen

Explanation:

The car's momentum change is 4000 kg/m/s because momentum change equals impulse.

Impulse can be summed up as follows: In this case, the car experienced an impulse of 4000 kg/s. Impulse = force x time.

The following formula can be used to determine the car's change in momentum using this information: The car's momentum change is 4000 kg/m/s because momentum change equals impulse.

The change in an object's momentum caused by a force acting on it for a certain amount of time is equal to impulse. An object's momentum change is measured by its impulse, which is defined as the sum of the object's acting force and time. Calculating impulse can be done by: Force x time is the impulse.

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1. The tension on a rope suspending a 15.0 kg box from the ceiling is 147 N, acting in the opposite direction to counterbalance the weight of the box.

2. To overcome the friction force from the road and maintain a constant velocity, an applied force of 2650 N must be exerted on the car.

1. To determine the tension on the rope when a 15.0 kg box is suspended from the ceiling, we analyze the forces at play. When the box is stationary, the net force acting on it is zero.

Let's consider the tension in the rope as T. The weight of the box can be calculated using the equation W = mg, where m represents the mass of the box, and g is the acceleration due to gravity.

Weight of the box = 15.0 kg * 9.8 m/s² = 147 N

Since the box is in equilibrium, the tension in the rope must balance the weight of the box. Therefore:

T - 147 N = 0

Solving for T:

T = 147 N

2. When a 1510 kg car experiences a 2650 N friction force from the road, we need to find the force that must be applied to the car to overcome this friction and maintain constant velocity.

The force of friction is given by the equation \(F_f_r_i_c_t_i_o_n\) = μ * N, where μ is the coefficient of friction and N is the normal force. In this case, we assume the friction force is the maximum static friction force, which is μ * N.

Since the car is experiencing a friction force of 2650 N, we have:

\(F_f_r_i_c_t_i_o_n\) = 2650 N

The normal force (N) is equal to the weight of the car (mg), where g is the acceleration due to gravity.

Weight of the car = 1510 kg * 9.8 m/s² = 14818 N

Since the car is at constant velocity, the applied force must balance the friction force:

Applied force - 2650 N = 0

Solving for the applied force:

Applied force = 2650 N

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Answer:

Jupiter is the largest planet in the solar system, but it's Saturn—the solar system's second largest planet—that takes the prize for least dense. It's less dense than water, which has led many people to postulate that it would float.

Answer:

v = 20.57 m/s

Explanation:

Given that,

Acceleration, a = 2.2 m/s²

Initial speed of the person, u = 0 (at rest)

Distance, s = 100 m

We need to find the top speed. It can be calculated using third equation of motion.

\(v^2-u^2=2as\)

v is final speed

\(v=\sqrt{2as} \\\\v=\sqrt{2\times 2.2\times 100} \\\\v=20.57\ m/s\)

So, the top speed of the person is 20.57 m/s.

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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Answer:D

Explanation:

:)

a. The speed of the pendulum when it reaches the bottom is 0.9 m/s.

b. The height reached by the pendulum is 0.038 m.

c. When the pendulum no longer swing at all, all the kinetic energy of the pendulum has been used to overcome frictional force.

K.E = 100%P.E - 18%P.E

where;

K.E(bottom) = 0.82P.E

K.E(bottom) = 0.82(mgh)

K.E(bottom) = 0.82(1 x 9.8 x 0.05) = 0.402 J

K.E = ¹/₂mv²

2K.E = mv²

v² = (2K.E)/m

v² = (2 x 0.402)/1

v² = 0.804

v = √0.804

v = 0.9 m/s

P.E = 100%K.E - 7%K.E

P.E = 93%K.E

P.E = 0.93(0.402 J)

P.E = 0.374 J

P.E = mgh

h = P.E/mg

h = (0.374)/(1 x 9.8)

h = 0.038 m

When the pendulum no longer swing at all, all the kinetic energy of the pendulum has been used to overcome frictional force.

Thus, the speed of the pendulum when it reaches the bottom is 0.9 m/s.

The height reached by the pendulum is 0.038 m.

When the pendulum no longer swing at all, all the kinetic energy of the pendulum has been used to overcome frictional force.

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Answer:

A.1

Explanation:

on the vector plot you should count up and if you count up you´ll get one

The length of the y-component of the vector plotted in the given question would be 1. Thus, the correct option is A.

A vector field can be defined as an assignment of a vector to each point in the subset of space. For instance, a vector field in the plane can be easily visualized as a collection of arrows with a given magnitude and direction of a particle, each line or arrow attached to a point in the plane of space.

Vector plots are used to create vector lines between any two points or from one point in space to the specified angle direction and with the selected magnitude and direction of the quantity or quality.

In the given graph, the Y-component is the vertical line or vertical component. The value of the y-component of the vector plotted is 1.

Therefore, the correct option is A.

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The given average distance of the Moon from the Earth is 384,000 km and the sidereal period of the moon is 27.3 days. We need to find the average orbital speed of the moon.So, we can use the formula to calculate the average orbital speed of the Moon as follows:

Average orbital speed (V) = distance/time.

To get the distance covered by the moon in one orbit, we will multiply the distance of the Moon from the Earth by the circumference of the orbit:

Distance = 2 × π × r = 2 × π × 384000 = 2.41 × 10^6 km.

Therefore, the average orbital speed of the Moon is given by the formula:V = Distance / Time periodV = 2.41 × 10^6 km / 27.3 days.

We need to convert the time period from days to seconds:1 day = 24 hours1 hour = 60 minutes1 minute = 60 seconds1 day = 24 × 60 × 60 seconds1 day = 86400 seconds.

Therefore, the time period is:27.3 days = 27.3 × 86400 seconds27.3 days = 2.36 × 10^6 seconds.

Substituting this value in the formula we get:V = 2.41 × 10^6 km / 2.36 × 10^6 secondsV = 1.02 km/s.

Therefore, the average orbital speed of the moon is 1.02 km/s.

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the new sides of the reduced square are 3.5 feet long each. In order to find the new sides of a square with an area of 196 square feet that is reduced by a factor of 1/4, we have to  follow some steps

The details of these steps are as follow:
1. Determine the original side length of the square: Since the area of a square is found by multiplying the length of one side by itself (side × side), you need to find the square root of the original area, which is 196. The square root of 196 is 14, so the original side length is 14 feet.
2. Reduce the original side length by a factor of 1/4: Multiply the original side length (14 feet) by the reduction factor (1/4).
  14 × (1/4) = 14/4 = 3.5
So, the new sides of the reduced square are 3.5 feet long each.

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Answer:

it's 100m/s2

Explanation:

a=f/m

or,a=5/50/1000. (mass si unit is kg and 1kg=1000g

or,a=5/0.005

or,a=100m/s2

Answer:

10g to kg=0.01

20×0.01=0.2

Force of 0.2N

Answer: absorb

Explanation: ligh goes in ur eyes

According to the given statement , the fluid relative velocity at the interface between the two plates is approximately 0.684 m/s.

To find the fluid relative velocity at the interface between the two plates, we can use the concept of shear rate and the formula for the velocity gradient.

First, let's calculate the shear rate (γ) using the formula:

γ = Δv / Δx

Where:
- Δv is the velocity difference between the two plates, which is given as 1.3 m/s (since the upper plate has a speed of 1.3 m/s at the interface).
- Δx is the distance between the two plates, which is the sum of the thicknesses of the two fluid layers:

Δx = L1 + L2.

Given that L1 = 0.62 mm and L2 = 0.56 mm, we need to convert these values to meters:

L1 = 0.62 mm = 0.62 × 10⁻³ m
L2 = 0.56 mm = 0.56 × 10⁻³ m

Now we can calculate Δx:

Δx = L1 + L2

Substituting the values, we get:

Δx = 0.62 × 10⁻³ m + 0.56 × 10⁻³ m
   = 1.18 × 10⁻³ m

Now we can calculate the shear rate:

γ = Δv / Δx
  = 1.3 m/s / 1.18 × 10⁻³ m

Performing the division, we find:

γ ≈ 1101.7 s^-1

The shear rate (γ) represents the velocity gradient between the two fluid layers. To find the fluid relative velocity at the interface, we need to multiply the shear rate by the thickness of the first layer (L1).

Relative Velocity = γ * L1

Substituting the values, we get:

Relative Velocity = 1101.7 s⁻¹ * 0.62 × 10⁻³ m

Performing the multiplication, we find:

Relative Velocity ≈ 0.684 m/s

Therefore, the fluid relative velocity at the interface between the two plates is approximately 0.684 m/s.

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(a) The average velocity of the car during the 95 km trip is 33.16 km/h.

(b) The average speed of the car during the 95 km trip is 9.21 m/s.

(a) The average velocity of the car during the 95 km trip is 33.16 km/h.

To calculate the average velocity, we need to consider both the distance traveled and the time taken. The car travels a total distance of 95 km and takes a total time of 2 hours and 10 minutes (40 km at 20 km/h = 2 hours and 55 km at 75 km/h = 50 minutes). Dividing the total distance by the total time gives us an average velocity of 33.16 km/h.

(b) The average speed of the car during the 95 km trip is 9.21 m/s.

To convert km/h to m/s, we divide the speed in km/h by 3.6. Thus, the average speed of the car, calculated by dividing 33.16 km/h by 3.6, is 9.21 m/s.

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Answer:

the speed limit 6 seconds and the car will travel in 90m

Answer:

I would say A, I hope this helped ; >

Answer:

it's either carbon or silicone

When the distance between the two slits on the screen is reduced, the interference fringes become wider apart. The pattern is less intense, with the bright fringes becoming less bright and the dark fringes becoming less dark.

When the distance between the two slits on the screen is reduced, the interference fringes become wider apart. The pattern is less intense, with the bright fringes becoming less bright and the dark fringes becoming less dark. As the distance between the two slits increases, the opposite occurs.

The fringes become closer together, with bright fringes becoming brighter and dark fringes becoming darker. This phenomenon is due to the constructive and destructive interference of light waves.

When the light waves from the two slits arrive at the screen, they interfere with one another, either constructively or destructively depending on the phase of the wave.

If the peaks and troughs of the two waves align perfectly, they will constructively interfere and create a bright fringe. If the peaks of one wave align with the troughs of another wave, they will destructively interfere and create a dark fringe.

The spacing between the fringes, known as the fringe spacing, is determined by the wavelength of the light and the distance between the slits. When the distance between the slits is reduced, the fringe spacing increases, resulting in fringes that are further apart from each other.

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The electric field due to a point charge will always be greater than that of a parallel plate capacitor.

The electric field due to a point charge is given by the formula E=kq/r². Compare the above electric field to the electric field of a large parallel plate capacitor with the same voltage and distance between the plates.

According to Coulomb's law, the electric field due to a point charge varies inversely with the square of the distance from the charge. The magnitude of the electric field between the plates of a capacitor is uniform and is given by E=V/d (where V is the voltage across the plates and d is the distance between them).

Thus, the electric field between the plates of a capacitor is given by E=V/d. Comparing both electric fields, we get that `E\(_{point}\) = E\(_{plates}\).

It's expected because the electric field between the plates of a capacitor is uniform, and its magnitude depends on the distance between the plates and the voltage applied.

The electric field due to a point charge, on the other hand, varies inversely with the square of the distance between the charge and the point where we want to measure the field. Therefore, the electric field due to a point charge will always be greater than that of a parallel plate capacitor.

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Explanation:

the answers are calculated in above pictures

Where a tap supplies water at 26°c while another supply at 82°c. If a man wishes to bath with water at 40°c, then the ratio of the mass of hot water to that of cold water is: 1/3.

The ratio of the mass of hot water to that of Cold water is determined as follows:

M₁C (82  40) = M₂C (40-26)

Where M₁C is the Mass of Tap 1; and

M₂C is the Mass of Tap 2.

Thus,

M₁C (82  40) = M₂C (40-26)

M₁/M₂ = 14/42

= 1/3

Thus, it is right to state that the ratio of the mass of hot water to that of cold water is: 1/3.

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Answer:

what are you trying to do for this question

Explanation:

Yes, the aluminum foil is impure and includes a variety of materials that have an impact on the percentage yield when added to the final product's overall weight.

Aluminum foil is used in a variety of settings, both domestic and commercial. It can be used to wrap food, bake cookies and cakes, and store food.

Additionally, many preserve delicate foods like meat and vegetables in aluminum foil.

Research has shown that aluminum foil is not a pure material since some of its particles can leach into food and cause major health issues.

Iron, zinc, gallium, and silicon microparticles are present in this foil. In addition, when heated, the coloring and paint on it have negative effects.

Additionally, it increases the overall weight of the finished product, which also has an impact on the yield percentage.

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The possible potential difference between the truck's top and bottom side panels is 1.39 x 10^-4 V.

The potential difference between two points in an electric circuit is given by the product of the magnetic field, the cross-sectional area of the conductor, and the component of velocity perpendicular to the magnetic field.

The potential difference between the top and bottom of the truck's side panels can be calculated using the following formula:

V = Blv

Where:

V = potential difference (V)

B = magnetic field (T)

l = length of conductor (m)

v = velocity of conductor perpendicular to the magnetic field (m/s)

Given that the magnetic field is B = (5.0 x 10^-5 T, north) and the truck is moving west at 50 km/hr = 13.89 m/s, the potential difference between the top and bottom of the truck's side panels can be calculated as:

V = Blv = (5.0 x 10^-5 T) * (2.0 m) * (13.89 m/s) = 1.39 x 10^-4 V

It is important to note that the magnetic field is pointing north and the truck is moving west, so the velocity of the truck is perpendicular to the magnetic field, which means that the potential difference is not zero. Also, it is important to note that the velocity of the truck is given in km/hr and needs to be converted to m/s before using it in the equation.

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Answer:

You will have to do the last PE - the initial PE

Explanation:

Kepler's first law revolutionized the original heliocentric model proposed by Copernicus by introducing the concept of elliptical orbits instead of circular ones.

Kepler's first law, also known as the law of ellipses, significantly transformed the heliocentric model proposed by Copernicus. Copernicus initially placed the Sun near the center of the Earth's orbit, with the planets moving in circular orbits around it. However, Kepler's observations and mathematical analysis of planetary motion led him to conclude that the planets do not move in perfect circles but instead follow elliptical paths around the Sun. This discovery was a fundamental departure from Copernicus' circular orbits.

By determining that planetary orbits are elliptical, Kepler eliminated the need for the complex system of epicycles that were previously proposed by astronomers, including Copernicus himself, to explain the phenomenon of retrograde motion. Retrograde motion is the apparent backward motion of a planet in the sky as observed from Earth. Kepler's discovery provided a simpler and more accurate explanation for this phenomenon without the need for additional layers of complexity.

In summary, Kepler's first law transformed the original heliocentric model by replacing the assumption of circular orbits with the concept of elliptical orbits. This change improved the accuracy of the model and eliminated the necessity for epicycles, leading to a more elegant and comprehensive understanding of planetary motion within the solar system.

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