HELP Where would you predict the highest atmospheric pressure?
A. In the southwest
B.In the northwest
C. In the southeast
D. In the northeast

The capacitance across the motor must be 86.87 f to increase the power factor to 0.9 lagging.

An electric rotating machine with the capacity to transform electrical energy into mechanical energy is known as a single-phase motor. It functions using a single-phase power source. They have hot and neutral wiring, respectively. Their supply voltages fluctuate in unison and their power can exceed 3Kw.

I1 = 20A, f = 50 Hz

cosϕ1 = 0.75 ⇒ ϕ1 = 41.41∘ ⇒ tanϕ1 = 0.88

cosϕ2 = 0.9 ⇒ ϕ2 = 25.84∘ ⇒ tanϕ2 = 0.48

Ic = I1 cosϕ1 (tanϕ1 − tanϕ2)

= (20) (0.75) (0.88 – 0.48) = 6 A

C = Ie/2πfv

C = 6/2π × 20 × 220

C = 86.87∪f

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Answer:

1200

Explanation:

f=ma

f_ force

m_ mass

a_ acceleration

The average acceleration is 2.33 m/s². the total distance traveled is 1.5 meters, and the total time taken is 0.84 seconds. The average velocity of the object during this period of motion is approximately 1.79 m/s.

The average acceleration of the object can be calculated by dividing the change in velocity by the distance traveled. In this case, the object started from rest and reached an instantaneous velocity of 3.5 m/s over a distance of 1.5 m. The change in velocity is 3.5 m/s - 0 m/s = 3.5 m/s. Therefore, the average acceleration is 3.5 m/s divided by 1.5 m, which equals 2.33 m/s².

distance = (initial velocity × time) + (0.5 × acceleration × time²). Given that the initial velocity is 0 m/s, the distance is 1.5 m, and the average acceleration is 2.33 m/s², we can solve for time. Rearranging the equation, we have 1.5 m = 0.5 × 2.33 m/s² × time². Solving for time, we find that it took approximately 0.84 seconds for the object to travel 1.5 meters. In this case, the total distance traveled is 1.5 meters, and the total time taken is 0.84 seconds. Therefore, the average velocity is 1.5 m divided by 0.84 s, which equals approximately 1.79 m/s.

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The Hall voltage produced in the aorta can be determined using the formula for Hall voltage. Evaluating the expression, we find VH ≈ 5.22 mV.

Given the magnetic field strength, the diameter of the aorta, and the blood velocity, we can calculate the Hall voltage. In this case, the Hall voltage produced is approximately 5.22 mV.

The Hall voltage (VH) in a conducting material can be calculated using the equation VH = B * d * V, where B is the magnetic field strength, d is the thickness or diameter of the conducting material, and V is the velocity of the charged particles (in this case, blood velocity).

Given that the magnetic field strength (B) is 0.160 T and the diameter of the aorta (d) is 2.60 cm, we first need to convert the diameter to meters by dividing it by 100: d = 2.60 cm / 100 = 0.026 m.

Substituting the given values into the formula, we have VH = (0.160 T) * (0.026 m) * (64.0 cm/s).

To ensure consistency in units, we convert the blood velocity to meters per second: V = 64.0 cm/s / 100 = 0.64 m/s.

Evaluating the expression, we find VH ≈ 5.22 mV. Therefore, a Hall voltage of approximately 5.22 millivolts is produced by the applied magnetic field across the aorta when the blood velocity is 64.0 cm/s.

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To drag the box from point A to B on a horizontal surface using a horizontal force of 10 N, a work of 60 joules (J) must be done over a distance of 6 meters (m).

On a horizontal surface, if a box is dragged from point A to B by a horizontal force of 10 N, the work done can be calculated using the formula:

Work = Force x Distance

In this case, the force applied is 10 N and the distance between points A and B is 6 m.

Plugging these values into the formula, we get:

Work = 10 N x 6 m = 60 Nm

The unit for work is joules (J), so the work done in this scenario is 60 J.

When a force is applied to move an object, work is done.

The work done is calculated by multiplying the force applied by the distance over which the force is exerted.

In this case, the force applied is 10 N and the distance is 6 m.

Multiplying these values gives us the work done, which is 60 J.

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Answer:

B. The volume of an object is the same as the

weight of that object.

Explanation:

Every thing else is right and that one is wrong.

Answer:

B. The volume of an object is the same as the

weight of that object.

Explanation:

i hope it helps

The expected magnetic field reading when the current through the coil is -0.2 A would be -0.06 T.

To determine the expected magnetic field when the current through the coil is -0.2 A, we can use Ampere's law, which states that the magnetic field inside a coil is directly proportional to the current passing through it.

Given that the magnetic field (B) inside the coil is 0.03 T when the current (I) through the coil is 0.1 A, we can establish a proportionality relationship:

B1 / I1 = B2 / I2

where B1 is the initial magnetic field, I1 is the initial current, B2 is the expected magnetic field, and I2 is the expected current.

Substituting the known values into the equation:

0.03 T / 0.1 A = B2 / (-0.2 A)

Now we can solve for B2:

B2 = (0.03 T / 0.1 A) * (-0.2 A)

Simplifying the expression:

B2 = -0.06 T

Therefore, the expected magnetic field reading when the current through the coil is -0.2 A would be -0.06 T.

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I = 0.00744 A (Amps)

Hi there !

Ohm's law formula

I = V/R

I = 3.5V/470Ω

I = 0.00744 A

Good luck !

Answer:

Mendeleev

Explanation:

He discovered the periodic table trying to organize the elements in 1869

Answer:

The sun and other stars consist of plasma. Plasma is also found naturally in lightning and the northern and southern lights. Human-made plasma is found in fluorescent lights, plasma TV screens, and plasma spheres

Explanation:

hope this helps if so mark me brainliest <3

Answer:

D. Pearl Harbor

Explanation:

You double your distance from a sound source that is radiating equally in all directions. The intensity of the sound reduces to one-sixteenth its original value.

The pace at which light disperses over a surface of a specific region some distance from a source is referred to as intensity. The intensity changes depending on the source's power and distance from it.

The degree, volume, or magnitude of something is its intensity. Examples include fire, emotion, weather, work, or passion. The word "intensity" is occasionally linked to fervour, fire, and violence. It is employed when describing the intensity of something like a flame or possibly a love affair.

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NOTE: The given question is incomplete on the portal. Here is the complete question

QUESTION: You double your distance from a sound source that is radiating equally in all directions. What happens to the intensity of the sound? It reduces to

(A) one-fourth its original value.

(B) one-eighth its original value.

(C) one-sixteenth its original value.

(D) none of the above

The momentum equation for photons is given by p = h/λ, where p is the momentum, h is the Planck's constant, and λ is the wavelength.

The momentum equation for photons is an important equation in quantum mechanics that relates the momentum of a photon to its wavelength. It is given by the equation p = h/λ, where p represents the momentum of the photon, h is Planck's constant (approximately 6.626 x 10^-34 J·s), and λ denotes the wavelength of the photon. This equation shows that the momentum of a photon is inversely proportional to its wavelength. As the wavelength increases, the momentum of the photon decreases, and vice versa.

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The new speed of the glider is 42.2 m/s.

The new speed of the glider can be calculated using the principle of the law of conservation of energy.

Note: Total energy of the glider before the dive = Total energy of the glider after the dive.

Simplifying the equation above,

make V the subject of the equation.

From the question,

Substitute these values into equation 2.

Hence, The new speed of the glider is 42.2 m/s.

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The person above me is an idiot

Answer:

The correct answer is 10

Explanation:

10 times the singular magnesium which means: 10 times 1

There are 10 magnesium atoms in 10 MgCl₂ as depicted in the chemical formula.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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(a) The initial temperature is 373.95 K.

(b) The final temperature is 546.15 K.

(c) The total internal energy change of the fluid during this process is 515.4 kJ.

(d) The process can be represented as an isochoric heating process on the P-v diagram and as an isobaric expansion process on the T-v diagram.

(a) To find the initial temperature, we can use the saturated steam tables. At a pressure of 200 kPa, the corresponding saturation temperature is 373.95 K.

(b) Since the volume doubles, the process is an isochoric (constant volume) heating process. Using the ideal gas law, we can determine the final temperature. The initial and final volumes are related by the equation V_final = 2V_initial. Since the mass remains constant, the specific volume (v) is inversely proportional to the density (ρ). Therefore, ρ_final = ρ_initial/2. Using the ideal gas law, we can calculate the final temperature to be 546.15 K.

(c) The total internal energy change can be calculated using the equation ΔU = mC_vΔT, where m is the mass of the fluid and C_v is the specific heat at constant volume. Given the mass as 0.5 kg, the specific heat of water at constant volume, and the temperature change, we can find that the total internal energy change is 515.4 kJ.

(d) On the P-v diagram, the process is represented as a vertical line at 200 kPa, indicating constant pressure. On the T-v diagram, the process is shown as an upward-sloping line, indicating an isobaric expansion process. The initial state is represented as a point on the left, and the final state is represented as a point on the right. The path between the initial and final states is a straight line connecting these two points.

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power is reffering to force

Answer:

Voltmeter

Explanation:

Voltmeter is used to measure both terminal potential difference as well as electromotive force (e.m.f.) depending upon the connection state of the battery or cell.

Explanation:

4.2 converted to grams equal 119.067997125

Advantages of making a telescope mirror thin are Lightweight, Reduces sag, Reduces cooling time, Easier to make and Cost-effective.

Advantages of making a telescope mirror thin :

Lightweight: A thin mirror makes the telescope lightweight, which is essential for portable telescopes. It helps in mounting the device to a support mechanism or mount, preventing vibrations and turbulence in the image.

Reduces sag: The thin mirror also reduces the chances of sagging, which can cause aberrations in the image. With a thin mirror, the weight of the device is concentrated in the center, preventing flexure in the center of the mirror.

Reduces cooling time: A thin mirror has a reduced cooling time, allowing the device to be used quickly. It minimizes the time taken for the mirror to achieve thermal equilibrium with the surroundings.

Easier to make: A thin mirror is easier to manufacture than a thick mirror due to the reduced weight. It makes the process of grinding and polishing simpler, resulting in a better-finished product with a smooth surface.

Cost-effective: Making a thin mirror requires less material and is, therefore, more cost-effective than a thick mirror. It reduces the cost of manufacturing the telescope, making it more affordable for consumers. For instance, a 150mm thin mirror would be cheaper than a 150mm thick mirror.

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Answer: The correct option would be (Put it in the refrigerator)

Explanation: Have a good day :)

Answer:

C

Explanation:

Decreasing its temp decreases particle movement

According to Boyle's Law, there is an inverse relationship between pressure and gas volume.

Therefore, option b. There is an inverse relationship between pressure and gas volume is the correct answer.

Boyle's Law is defined as the principle that explains the relationship between the volume and pressure of a gas at a constant temperature. It is formulated by Robert Boyle, an Irish physicist and chemist, in the 17th century. Boyle's Law states that the pressure of a given amount of gas is inversely proportional to its volume, provided the temperature remains constant.

Mathematically, it can be expressed as

P₁V₁ = P₂V₂,

where P₁ and V₁ are the initial pressure and volume of the gas, respectively, and P₂ and V₂ are the final pressure and volume of the gas. Therefore, option b. There is an inverse relationship between pressure and gas volume is the correct answer.

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In a vacuum all colors of light travel with same speed and this is the reason a white ray travels through the vacuum without going through any dispersion..

Speed of light is the distance per time light waves propagate through different materials. The value for the speed of light in a vacuum is now defined as exactly 299,792,458 metres per second.

Therefore, In a vacuum all colors of light travel with same speed and this is the reason a white ray travels through the vacuum without going through any dispersion

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The causes air mass movement is option B which is  heat rising from the equator, cooling and condensing in the air causing a convection current.

Air mass movement refers to the horizontal movement of large bodies of air that have similar temperature and humidity characteristics. Air masses can form over large areas of land or water, and they can take on the characteristics of those areas. When an air mass encounters a boundary or front between another air mass with different temperature or humidity characteristics, it can cause weather changes, such as the formation of storms, precipitation, or changes in temperature and wind patterns. The movement of air masses is an important factor in determining the weather conditions in a particular region.

The correct answer is B. Heat rising from the equator causes air to warm, expand, and rise. As it rises, it cools and condenses, forming clouds and precipitation. This process creates a convection current, with warm air rising at the equator and cooler air sinking near the poles.

Therefore, this movement of air masses is what drives much of the Earth's weather patterns, including the formation of high and low-pressure systems, jet streams, and storms.

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The efficiency of the machine will be calculated from the ratio of output force to input force.

Efficiency is defined as the rate at which a machine does work.

Mathematically, efficiency is given as the ratio of output force to input force.

Eff = (output force / input force) x 100%

Eff = (load x distance moved by load) / (effort x distance moved by effort)

Thus, the efficiency of the machine will be calculated from the ratio of output force to input force.

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Answer: For a pull box housing shielded conductors carrying over 1000V and used in an angled pull, the distance between a conductor entry and exit must be 36 times the outside diameter.

Explanation: To find the correct explanation to the question, we have to find more about the pull box housing shielded conductors.

Thus, we can conclude that, for a pull box housing shielded conductors carrying over 1000V and used in an angled pull, the distance between a conductor entry and exit must be 36 times the outside diameter.

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