Which soil conservation method involves planting different crops in a field
each year to restore nutrients.

By calculating E_new using these formulas, you will obtain the energy stored in the capacitor after decreasing the plate separation to 100 mm.

To calculate the energy stored in a capacitor after decreasing the plate separation, we can use the formula for the energy stored in a capacitor, which is given by:

E = 0.5 * C * V^2

Where E is the energy stored, C is the capacitance of the capacitor, and V is the voltage across the capacitor.

Since the capacitor was disconnected from the potential source before the separation of the plates was changed, the charge Q on the capacitor remains constant. The relationship between the charge, capacitance, and voltage is given by:

Q = C * V

Rearranging this equation, we get:

V = Q / C

Now, the capacitance of a parallel plate capacitor is given by:

C = (ε₀ * A) / d

Where ε₀ is the vacuum permittivity (8.854 × 10^-12 F/m), A is the area of the plates, and d is the separation between the plates.

When the separation is decreased to 100 mm (0.1 m), we need to find the new capacitance:

C_new = (ε₀ * A) / 0.1

Since the charge remains constant, we can find the new voltage using the relationship:

V_new = Q / C_new

Finally, we can find the new energy stored in the capacitor by plugging in the values of the new capacitance and voltage into the energy formula:

E_new = 0.5 * C_new * V_new^2

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Answer:

0.389 meters per second

Explanation:

1. Get your knowns

a. 40 meters per 120 seconds

b. 30 meters per 60 seconds

2. Add

Total distance = 40 meters + 30 meters = 70 meters

Total time = 120 seconds + 60 seconds = 180 seconds

3. Divide

Average velocity = 70 meters / 180 seconds

= 7 meters / 18 seconds

= 0.388... meters per second

Answer:

first object final velocity =2m/s

second = 12m/s

Explanation:

i hope this will help you,..,

Answer:

15.24 m/s in the downward direction

Explanation:

Given that the initial upward velocity of the ball is 24 m/s.

Assuming that the upward direction is positive.

As gravitational force acts in the downward direction and the direction of acceleration is the same as the direction of force, so the acceleration due to gravity will be negative.

Now, from the equation of motion, when an object is launched with initial velocity u, the final velocity, v, of an object after time t is v=u+at.

Given that u=24 m/s, t=4 seconds, \(g=-9.81 m/s^2\).

So, the final velocity is

\(v= 24 + (-9.81)\times 4 \\\\\Rightarrow v= 24-9.81\times 4\)

\(\Rightarrow v=-15.24\) m/s

Here, the negative sign means the final velocity is in the downward direction.

Hence, the velocity after 4 seconds is 15.24 m/s in the downward direction.

Answer: A thermal camera could protect the school during the pandemic because you could detect when students may have a fever or even if the student is hot. Being hot or having a fever is a symptom that doesn't always mean you have Co/vid, however, it does mean you are not keeping the school safe. If anyone in the school has a virus and you have a cold or fever this automatically makes the risk of you getting a cold, or even worse like Cov/id-19 higher.

Explanation: please make me brainliest

Answer:

4b: comets

5a: supercluster

5b: they just changed 4b's solar system for milky way. I think it is still comets. if not, then just say black holes.

Answer:

static electricity

Explanation:

(a) The acceleration of the masses is determined as 1.1 m/s² in the direction of the 5 kg mass.

(b) The tension in the string in terms of gravity is T = g.

(a) The acceleration of the masses is calculated by applying Newton's second law of motion.

F(net) = ma

where;

(5 kg x 9.8 m/s² ) - (1 kg + 3 kg )9.8 m/s² = ma

9.8 N = (5kg + 1 kg + 3 kg )a

9.8 = 9a

a = 9.8 / 9

a = 1.1 m/s² in the direction of the 5 kg mass.

(b) The tension in the string in terms of gravity is calculated as follows;

T = ( 5kg)g - (1 kg + 3 kg ) g

T = 5g - 4g

T = g

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Answer: decreases

Explanation:

When an object is thrown at 48.6 degrees from the y-axis, towards the negative x-axis and is moving with a speed of 5.2 m/s, the magnitude of the x-component of its velocity can be calculated using the following steps:

Step 1: Resolve the velocity vector into its x- and y-components.

The velocity vector makes an angle of 48.6 degrees with the y-axis, which means the angle between the velocity vector and the x-axis is 90 - 48.6 = 41.4 degrees.

Therefore, the x-component of the velocity is given by:vx = v cos(41.4)where v is the speed of the object, which is 5.2 m/s.

Therefore, the x-component of the velocity is given by:vx = 5.2 cos(41.4) = 3.7 m/sStep 2: The magnitude of the x-component of the velocity is simply the absolute value of the x-component, which is:|vx| = 3.7 m/sTherefore, the magnitude of the x-component of the velocity is 3.7 m/s.

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The telescope that allowed astronomers to discover most of the planets found with the transit method was called the Kepler mission.

Through only this one telescope, Kepler, astronomers have found thousands of extrasolar planets, or exoplanets, since its inception. Most of them are planets with diameters ranging from Earth's to Neptune's (which is four times the size of Earth). Where Kepler was directed for the first four years of its mission, in an area of the constellation Cygnus roughly the size of the palm of a hand held at arm's length, many of these planets were found.

According to the NASA Exoplanet Archive, as of November 2020, Kepler was credited with finding 2,392 exoplanets, with 2,368 candidate planets still awaiting confirmation.

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Answer:

149 N

Explanation:

We can start by resolving the forces acting on the chair in the vertical direction:

N - mg = 0

where N is the normal force exerted by the floor on the chair, m is the mass of the chair, and g is the acceleration due to gravity.

Since the chair is not accelerating vertically, we know that the sum of the forces in the vertical direction is zero.

Now, let's resolve the forces acting on the chair in the horizontal direction. We'll use the force you applied and the force of friction between the chair and the floor:

F - f = ma

where a is the acceleration of the chair, and f is the force of friction.

The force of friction can be calculated as:

f = μN

where μ is the coefficient of friction between the chair and the floor.

We don't know the coefficient of friction or the acceleration of the chair, so we can't solve this equation directly. However, we can use the fact that the chair is sliding along the floor, which tells us that the force of friction is equal and opposite to the force you applied:

f = F sinθ = 39.0 N * sin(36.0°) ≈ 23.5 N

Therefore, we can substitute this value for f in the horizontal force equation:

F - f = ma

39.0 N * cos(36.0°) - 23.5 N = ma

Solving for a, we get:

a ≈ 0.34 m/s^2

Now we can go back to the vertical force equation and solve for the normal force:

N - mg = 0

N = mg = (110 N) + (m chair)(a)

We don't know the mass of the chair, but we can use the acceleration we just calculated to find it:

a = F/(m chair)

m chair = F/a ≈ 115 kg

Substituting this value for the mass of the chair, we get:

N = mg = (110 N) + (115 kg)(0.34 m/s^2)

N ≈ 149 N

Therefore, the normal force that the floor exerts on the chair is approximately 149 N.

The radiation dose absorbed by a person is measured using the conventional unit rad or the SI unit gray. The biological risk of exposure to radiation is measured using the conventional unit rem or the SI unit sievert.

I hope this helps!

Hi there!

For this situation, we can use the following equation for gravitational force:

\(F_g = \frac{Gm_1m_2}{r^2}\)

Where:

G = Gravitational Constant (6.67 × 10⁻¹¹)

m₁ = Tom's mass (kg)

m₂ = Sally's mass (kg)

r = radius (m)

Plug in the given values:

\(F_g = \frac{(6.67*10^{-11})(75)(47)}{20^2} = \large\boxed{5.878 * 10^{-10} N}\)

The correct range for the temperature danger zone is 40-140°F.

The temperature danger zone refers to the range of temperatures in which bacteria can grow and multiply rapidly, posing a risk of foodborne illnesses. The correct range for the temperature danger zone is 40-140°F (4-60°C). Within this temperature range, bacteria can multiply quickly, reaching dangerous levels that can lead to food poisoning.

Temperatures below 40°F (4°C) can slow down bacterial growth, while temperatures above 140°F (60°C) can kill most bacteria. However, between 40-140°F, bacteria thrive and can double in number every 20 minutes, increasing the risk of foodborne illnesses.

Maintaining proper temperature control is crucial in food safety to prevent bacterial growth and minimize the risk of foodborne illnesses. This is particularly important for perishable foods such as meats, poultry, fish, dairy products, cooked rice, and cooked vegetables.

To ensure food safety, it is recommended to keep cold foods below 40°F (4°C) and hot foods above 140°F (60°C).

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Answer:

i think the answer is letter c

The angle at which the light approaches the diamond-air boundary is approximately 76.7 degrees.

To determine the angle at which the light approaches the diamond-air boundary, we can make use of Snell's law, which relates the angles of incidence and refraction when light passes through different mediums. Snell's law states:

n₁ * sin(θ₁) = n₂ * sin(θ₂)

Where:

In this case, the light is initially in diamond and is entering air, so we have:

n₁ = refractive index of diamond = 2.42 (approximate value)

n₂ = refractive index of air = 1.00 (approximate value)

θ₁ = 22.5 degrees

We can rearrange Snell's law to solve for θ₂:

sin(θ₂) = (n₁ / n₂) * sin(θ₁)

Plugging in the values, we get:

sin(θ₂) = (2.42 / 1.00) * sin(22.5)

Calculating this value, we find:

sin(θ₂) ≈ 4.34 * sin(22.5)

Now, we can determine θ₂ by taking the inverse sine of both sides:

θ₂ ≈ arcsin(4.34 * sin(22.5))

Evaluating this expression, we find:

θ₂ ≈ arcsin(0.968) ≈ 76.7 degrees

Therefore, the angle at which the light approaches the diamond-air boundary is approximately 76.7 degrees.

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 The question asks about the best time to conduct a quick inspection of the work area to identify potential hazards.

The best time to perform a quick inspection of the work area to identify potential hazards is before starting any task or activity. Prior to beginning work, it is crucial to conduct a visual assessment of the surroundings to identify any existing or potential hazards. This proactive approach allows for early detection and mitigation of risks, ensuring a safer work environment.

By conducting a pre-task inspection, workers can identify potential hazards such as spills, loose wires, obstructed pathways, or any other unsafe conditions that may pose a risk to their safety or the safety of others. Addressing these hazards before commencing work minimizes the chances of accidents or injuries and promotes a more secure work environment.

Taking the time to regularly assess the work area for hazards is a fundamental aspect of maintaining a safe workplace. It is essential to remain vigilant throughout the workday, promptly addressing any new hazards that may arise and promptly resolving them. By continuously monitoring and inspecting the work area, potential hazards can be identified and rectified promptly, helping to prevent accidents and maintain a safe and healthy working environment.

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Answer:

No

Explanation:

the unit of velocity is m/s and the velocity is written as 35m/s not 35 k/m

Answer:

Astronauts who are orbiting the Earth often experience sensations of weightlessness. These sensations experienced by orbiting astronauts are the same sensations experienced by anyone who has been temporarily suspended above the seat on an amusement park ride. Not only are the sensations the same (for astronauts and roller coaster riders), but the causes of those sensations of weightlessness are also the same. Unfortunately however, many people have difficulty understanding the causes of weightlessness.

Heya!!

For calculate aceleration, lets applicate second law of Newton:

                                                   \(\boxed{F=ma}\)

                                                 Δ   Being   Δ

                                             F = Force = 500 N

                                              m = Mass = 15 kg

                                             a = Aceleration = ?

⇒ Let's replace according the formula and clear "a":

\(\boxed{a=500 \ N / 15 \ kg}\)

⇒ Resolving

\(\boxed{ a = 33.33 \ m/s^{2}}\)

Result:

The aceleration is 33,33 meters per second squared (m/s²)

Good Luck!!

The magnitude of acceleration of box is  \(33.34 \;\rm m/s^{2}\).

Given data:

The mass of box is, m = 15 kg.

The magnitude of applied force is, F = 500 N.

The given problem is based on the Newton's Second law of motion. As per the Newton's Second law, the product of mass of object and the acceleration of object is equal to the magnitude of applied force. Then,

F = ma

500 = 15 (a)

a = 500/15

\(a = 33.34 \;\rm m/s^{2}\)

Thus, we can conclude that the magnitude of acceleration of box is  \(33.34 \;\rm m/s^{2}\).

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The frequency of sound in the pipe is 231 Hz.

The frequency of sound in the pipe is calculated as follows;

N - N = λ/2

The total length of nodes, L = 4 (N - N) = 4 (λ/2)

L = 2λ

λ = L/2

The relationship between, frequency, speed and wavelength of sound is given as;'

f = v/λ

f = ( 343 m/s )/ (2.97 m / 2)

f = 231 Hz

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Answer:

650N

Explanation:

f = ma

130kg x 5 m/s^2 = 650N

Stars like the Sun primarily transport newly formed elements into the interstellar medium through a process called stellar winds and, in more massive stars, through supernova explosions.

Stars are known to  undergo nuclear fusion in their cores, where they convert lighter elements into heavier ones. This fusion process releases energy and creates new elements, such as helium, carbon, oxygen, and so on. Over millions or billions of years, these newly formed elements accumulate in the stellar interiors.

In the case of stars like the Sun, which are of moderate mass, they eventually enter the later stages of their lives known as the red giant phase.

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Answer:

Explanation:

Given parameters:

Weight of object  = 49N

Force applied = 12N

Unknown:

Acceleration of object  = ?

Solution:

The acceleration of the object is found by dividing the force by the weight;

 Acceleration  = \(\frac{12}{49}\)   = 0.25m/s²

The variation of water depth at spreading centers (ridges) controlled by isostasy  as convective cooling cools the rocks much more effectively the than heat conduction.

When heat transfer takes place between the two fluids in direct or indirect contact.

The lithosphere cools when it moves away from the ridge axis by sea floor spreading. The cooler rocks have low density, so the sea floor gets deeper as the lithosphere gets more dense.

Thus, the convective cooling cools the rocks much more effectively the than heat conduction.

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Answer:

However, to mention a few, there are other units of speed such as meters per second, feet per second, light-years per millennium, and knots. Feet per second, but specially meters per second are usually used to measure speed of animals, humans, and free fall objects. Knots is used to measure the speed of ship and/or boats.

Explanation: