what are the four system of measurement ​

In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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The order from most difficult to block to easiest to block is gamma radiation, beta radiation, and alpha radiation.

The three types of radiation, in order from the most difficult to block to the easiest to block, are:

1. Gamma radiation: Gamma radiation consists of high-energy photons that can penetrate most materials easily. It is the most difficult type of radiation to block and requires thick and dense materials such as lead or concrete to provide effective shielding.

2. Beta radiation: Beta radiation consists of fast-moving electrons or positrons. While it can travel further than alpha radiation, it is easier to block than gamma radiation. Beta particles can be blocked by materials such as aluminum or plastic.

3. Alpha radiation: Alpha radiation consists of helium nuclei, which are two protons and two neutrons. It is the easiest type of radiation to block due to its large size and positive charge. A sheet of paper or a few centimeters of air can effectively block alpha particles.

Conclusion in one line: The order from most difficult to block to easiest to block is gamma radiation, beta radiation, and alpha radiation.

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Answer:

a)Acceleration increases proportionally

b)If you increase the mass at a given force the rate of acceleration slows.

To find the fraction of its current radius that Earth would have to shrink for the gravitational acceleration at its surface to triple, Earth would have to be shrunk to approximately sqrt(3) or 1.732 times its current radius for the gravitational acceleration at its surface to triple.

we can use the formula for gravitational acceleration:
g = (G * M) / (r^2)

Where:
g is the gravitational acceleration
G is the gravitational constant (approximately 6.674 × 10^-11 N m^2/kg^2)
M is the mass of Earth
r is the radius of Earth

Since we want to triple the gravitational acceleration (3g), we can set up the following equation:

3g = (G * M) / (r^2)

Next, we need to express the radius of Earth after it is shrunk in terms of its original radius (r'). Let's denote the shrunk radius as r'.

Now we can rewrite the equation:

3g = (G * M) / (r'^2)

Since mass (M) is not changing, we can cancel it out:

3g = (G * M) / (r^2)

Now we can solve for r' in terms of r:

3 = (r^2) / (r'^2)

Cross-multiplying, we get:

3 * (r'^2) = (r^2)

Dividing both sides by (r^2), we get:

3 = (r'^2) / (r^2)

Taking the square root of both sides, we get:

sqrt(3) = r' / r

To find the fraction of the current radius, we divide r' by r:

r' / r = sqrt(3)

So, Earth would have to be shrunk to approximately sqrt(3) or 1.732 times its current radius for the gravitational acceleration at its surface to triple.

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         The technology that sends information as light pulses via a glass or plastic fiber is known as fiber optics, or optical fiber. These glass fibers can range in quantity from a few to several hundred in a fiber optic cable. The glass fiber core is encircled by yet another glass layer known as cladding.

         In fiber optics, data is sent as pulses of light, or photons, that travel over a fiber optic cable. Incoming light is bent at a specific angle due to the differing refractive indices of the glass fiber core and cladding.

       Total internal reflection is the method by which light signals traveling through fiber optic cable bounce off the core and cladding in a series of zigzag motions. Due to the thick glass layers, the light signals move around 30% slower than the speed of light instead of at the speed of light.

     Fiber optic transmission sometimes needs repeaters at a distance to renew, or amplify, the signal throughout its path. By converting the optical signal to an electrical signal, processing that electrical signal, and then retransmitting the optical signal, these repeaters regenerate the optical signal.

      Up to 10 Gbps transmissions can currently be supported by fiber optic connections. A fiber optic cable often gets more expensive as its bandwidth capacity increases.

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Answer:

A

Explanation:

If it is loooking for a proper question, it wants to know how fast the mouse was going

Answer: The answer for this is A.

Explanation: I know this cause i'm smart and totally didn't copy the other guy just to get points

Here, the hydrogen atoms are combined to form a helium atom, and during this process of fusion, a significantly large amount of energy is released. Thus, stars produce a large amount of energy by forming helium from the combination of hydrogen in its core. Hence, the correct answer is option (C).

Answer:

A. Creating helium from hydrogen in its core.

Explanation:

Sacrificed my grade for points I hope it helps

The underwater angle of refraction for the red component of the light is approximately 48.59 degrees.

To find the angle of refraction for the red component of light, we can use Snell's Law:

n1 * sinθ1 = n2 * sinθ2

where n1 is the index of refraction in air (approximately 1), θ1 is the angle of incidence (83.00°), n2 is the index of refraction in water for red light (1.331), and θ2 is the angle of refraction we want to find.

Rearrange the equation to solve for θ2:

sinθ2 = (n1 * sinθ1) / n2

sinθ2 = (1 * sin(83°)) / 1.331

Now, calculate the sine of the angle:

sinθ2 ≈ 0.998140 / 1.331
sinθ2 ≈ 0.750

Next, find the angle by taking the inverse sine (arcsine) of the value:

θ2 = arcsin(0.750)
θ2 ≈ 48.59°

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Answer:

The inverse of f equals the inverse of d Subscript o Baseline plus the inverse of d Subscript I Baseline.

Explanation:

The lens equation shows the relation among focal length of the lens, image distance and object distance. It can be expressed as:

  \(\frac{1}{f}\) = \(\frac{1}{d_{o} }\) + \(\frac{1}{d_{I} }\)

where: f is the focal length of the lens, \(d_{o}\) is the object distance to the lens and \(d_{I}\) is the image distance to the lens.

The lens equation can be used to determine the unknown value among the variables f , \(d_{o}\) and \(d_{o}\).

Answer:

\(D. \frac{1}{f} = \frac{1}{d_{0} } + \frac{1}{d_{i} }~~\)

Explanation:

If I'm understanding the picture, it looks like the riders add up to 117.8 .

Answer is A 2.8 x 10^-8 N, to the right

The net gravitational force on mass A due to masses B and C is required.

The correct option is a. \(2.8\times 10^{-8}\ \text{N}\) to the right.

G = Gravitational constant = \(6.674\times 10^{-11}\ \text{Nm}^2/\text{kg}^2\)

\(r_{AB}\) = Distance between A and B = 0.4+0.1 = 0.5 m

\(r_{AC}\) = Distance between A and C = 0.1 m

\(m_A=m_B=m_c\) = Mass of each particle = 2 kg

The required force is

\(F_A=F_{AB}+F_{AC}\\ =\dfrac{Gm_Am_B}{r_{AB}^2}+\dfrac{Gm_Am_C}{r_{AC}^2}\\ =Gm^2\left(\dfrac{1}{r_{AB}^2}+\dfrac{1}{r_{AC}^2}\right)\\ =6.674\times 10^{-11}\times 2^2\left(\dfrac{1}{0.5^2}+\dfrac{1}{0.1^2}\right)\\ =2.8\times 10^{-8}\ \text{N}\)

The magnitude of force will be \(2.8\times 10^{-8}\ \text{N}\)

The direction will be towards the right since C is closer to A.

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A dual voltage 3-phase motor can operate at two different voltage levels, typically referred to as the low voltage (LV) and high voltage (HV) settings. To connect a dual voltage motor in the high voltage configuration, a specific wiring scheme is required. Here's a brief explanation of the connection scheme:

Start by identifying the motor's voltage rating and make sure it is set to the high voltage setting.

The motor will have multiple sets of winding terminals labeled for different voltage levels. Locate the high voltage winding terminals.

Connect the three phases of the power supply to the corresponding phases of the motor winding. This is typically done using wire connectors or terminal blocks.

Make sure to connect the correct phase to the corresponding terminal (e.g., L1 to L1, L2 to L2, L3 to L3).

Verify that the connections are secure and properly insulated to prevent any electrical hazards.

Once the motor is connected, it can be energized using the high voltage power supply.

Always refer to the motor's manufacturer instructions and follow appropriate safety precautions when making electrical connections. It is recommended to consult a professional electrician or motor technician for specific guidance on wiring a dual voltage motor.

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Answer:

The Northern flowing stream will affect the coast of Europe by  making  climate of Western Europe and Northern Europe to be warmer than other areas that are located around the same latitude and this is simply because of the North Atlantic Current

Explanation:

The Northern flowing stream will affect the coast of Europe because the North Atlantic current causes the Gulf stream to be split into two ( 2 ) and the Northern stream which is a warm stream crossing over to Northern Europe. The Gulf stream makes climate of Western Europe and Northern Europe to be warmer than other areas that are located around the same latitude and this is simply because of the North Atlantic Current

I can try and help whats it about?

Answer:

391.5 J

Explanation:

The amount of work done can be calculated using the formula:

Looking at the formula, we can see that the mass of the object does not affect the work done on it.

Substitute the force applied and the displacement of the object into the equation.

The amount of work done on the object is 391.5 J in order to move it 4.5 meters with an applied force of 87 Newtons.

Mass doesn't matter on amount of work done .We can calculate amount of work done through Force and Displacement

\(\boxed{\sf W=Fd}\)

\(\\ \sf\longmapsto Work\:Done=87(4.5)\)

\(\\ \sf\longmapsto Work\:done=391.5J\)

Answer:

Explanation:

Current refer to the rate at which electric charge flow or run or move in an electric circuit . It is measured in Ampere or coulumb per second.

The SI unit is Ampere and it is represented by A. It is a scalar quantity.

1 Ampere is the current that will produce an attractive force of 2 × 10^-7 Newton per meter of length between two parallel conductors.

Answer: it is called a open circuit

Explanation:

The true statement regarding the transverse waves should be option D. the direction at which the energy and the matter should be travel in the perpendicular direction.

It is the waves where the motion in which all the points should be on the wave oscillate along the paths at the right angles with respect to the wave of the direction. The example of this kind of waves should be electromagnetic, etc. In this, the directions where the energy and the travel of matter should be perpendicular to each other

Hence, the correct option is d.

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Answer:

imma have to come back to you on that one

Answer:

The Sun is at the center of the solar system and the planets move around it.

Explanation:pluto/edmentum

To calculate the radiation pressure on a highly polished metal surface, the most appropriate approximation to use is the small-angle approximation.

Radiation pressure refers to the pressure produced when electromagnetic radiation is absorbed or reflected by a surface. A highly polished metal surface is highly reflective, and therefore is expected to produce high radiation pressure.

The small-angle approximation is the assumption that the angle of incidence is small enough such that the sine of the angle is equal to the angle itself. This approximation is particularly useful in situations where the angle of incidence is small relative to 1 radian or less. This approximation can be used to calculate radiation pressure on highly polished metal surfaces because the angle of incidence is usually small (typically less than 1 radian), and therefore can be approximated using the small-angle approximation.

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By speeding up the process of doing work, power production may be enhanced. The following statement is true.

Description:

Work is completed at a rate determined by power. It is the ratio of work to time. It may be calculated mathematically using the next equation.

                                Power = Work / Time

                                 or, P = W / T

If the amount of effort/work increases and the amount of time decreases, power will grow. To complete a task in a short amount of time, a lot of force is used.

Therefore it is concluded that the questioned statement is true.

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The age limit to drink beer is 17 or 18 and up

The graph that corresponds to 0.1 s in one complete cycle is graph D.

option D is the correct answer.

The period of a wave is the time for a particle on a medium to make one complete vibrational cycle. Period, being a time, is measured in units of time such as seconds, hours, days or years.

Also, the period of a wave is the amount of time it takes for a wave to complete one wave cycle or wavelength.

From the given parameter, the coil rotates 10 times in one second. The period of the coil is calculated as;

Period = 1 s / 10

Period = 0.1 s

From the graphs, the only option that has one complete cycle in one second is option D.

Check option D, half cycle is 0.05 s and one full cycle is 0.1 s.

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Suki can go 0.854 meters to the end before the beam starts to tilt.

Beam length: L = 6.5 m

Beam weight: W b = 336 N

Suki's weight is W s = 590 N.

Suki stands in the middle of the steel beam and moves toward the end. Since the beam is supported by two posts that are spaced three meters apart, the distance she may go before the beam starts to lean is determined by how far she moves from the left support.

Thus;

according to formula

Wb × (3/2) = (Ws × x)

where:

Wb= Beam weight

Ws= Suki's weight

Adding the necessary values results in;

336 × 1.5 = 590 × x

x = (336 × 1.5)/590

x = 0.854 m

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The current in the second wire would dissipate energy at a rate of 40 A.

option E.

The current the second wire will dissipate is calculated as follows;

I = V/R

where;

The resistance of a wire is given as;

R = ρL/A

where;

when the diameter is 2D and length is L, the new resistance is calculated as;

R = ρL/(2D)²

R = ρL/4D²

The resistance will reduce by a factor of 4, so the current will increase by a factor of 4.

New current = 4 x 10 A = 40 A

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The charge on the plates will remain constant, regardless of the change in the separation between the plates.

The charge on the plates of a parallel plate capacitor is given by the formula:

Q = C * V

Where:

Q is the charge on the plates

C is the capacitance of the capacitor

V is the potential difference between the plates

The capacitance of a parallel plate capacitor is given by the formula:

C = (epsilon * A)/d

Where:

epsilon is the permittivity of the material between the plates

A is the area of one of the plates

d is the separation between the plates

If the separation between the plates is doubled, the capacitance of the capacitor will be halved. However, the potential difference between the plates is being maintained at a constant value by the battery. Therefore, the charge on the plates will remain constant, regardless of the change in the separation between the plates.

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Answer:

0.84m

Explanation:

0.51+0.43=0.93

πr can be 22/7 or 3.14

radius is 2x2= 4

3.14 divide0.93divide 4

=0.84m/s

Answer:

0.605 m (approx.)

Explanation:

We know, given the radius and the circular velocity we can yield the centripetal acceleration using this equation,

\(a = \frac{v^2}{r}\)

From this equation, we can solve for \($r$\) like this,

\(r = \frac{v^2}{a}\\r = \frac{0.51^2}{0.43} m \\ = 0.605 m\)

Given :

Mass of object, m = 1.5 kg.

To Find :

The momentum of boulder dropped from a cliff after 3 seconds.

Solution :

Speed of boulder after 3 seconds of free fall is given by :

v = u + gt       ( Equation of motion )

v = 0 + 10×3    ( g = acceleration due to gravity )

v = 30 m/s

Now, momentum is given by :

P = m × v

P = 1.5 kg × 30 m/s

P = 45 kg m/s

Therefore, momentum of boulder is 45 kg m/s.

Answer:

Magnitude of frictional force = 30 N

Explanation:

According to the second Newton's law, the net force exerted by an external agent on an object of mass m is:

Fn=m.a

The net force is the vector addition of each individual force. If the sum of all the forces acting on an object is zero, then the acceleration is zero. That means the object moves at a constant speed or is at rest.

When an object is pushed across a horizontal rough surface, there are two forces acting in the direction of the motion: The applied force and the frictional force.

If the applied force is greater than the frictional force, then the object moves at a constant positive acceleration. If the frictional force is greater than the applied force, then the object won't move at all (if it was at rest) or will start a deaccelerated motion (braking).

Finally, if both forces are equal, the object will move at a constant speed or remains at rest. Since the box is moving at a constant speed, we can conclude the frictional force equals the applied force:

Magnitude of frictional force = 30 N

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____________________________

The difference between the two concepts lies in the type of magnitude they represent, speed is a scalar magnitude, while velocity is a vectorial magnitude.

It is the variation of distance in a certain time as a consequence of the movement of a mobile element.

It is the vectorial magnitude that shows and expresses the variation in terms of position of an object and as a function of time.

Therefore, we can conclude that speed is a scalar magnitude that determines the ratio of the distance traveled by a body and velocity is a vectorial magnitude that expresses the relationship between the space traveled by an object, the time used for it and its direction.

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