A moving coil meter has a resistance of 25 and indicate full scale deflection when a current of 4.0mA flows through it.How could this meter be converted to a millimeter having a full scale deflection for a current of 50 mA?​

Answer:

Due to waves.

Explanation:

The can merely moves up and down because the movement of the waves that propagate away from the disturbance caused by the boat. The Can has low density due to low mass and high volume which allow the can to float on the surface of water after prevent it from the drowning. The wave moves the can up and down but prevent it from going deep inside the water so we can say that the can moves due to movement of waves in water.

a) The total resistance of the circuit in which three 45 ohm lightbulbs and three 75 ohm light bulbs connected in series is 360 ohm.

b) The total resistance of the circuit if all six are wired in parallel is 28.57 ohm.

a) In order to find the series total resistance, we need to add all resistances,

Req = R₁ + R₂ + R₃ + R₄ + R₅ + R₆ = 45 + 45 + 45 + 75 + 75 + 75 = 135+ 225 = 360 ohm

b) Now, since the resistances are in parallel, we need to use the expression below,

1/Req = 1/R₁ + 1/R₂ + 1/R₃ + 1/R₄ + 1/R₅ + 1/R₆

Putting in the values,

1/Req = 1/45 + 1/45 + 1/45 + 1/75 + 1/75 + 1/75

1/Req = 1/0.035

Req = 28.57 ohm

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Answer:

D. Electric energy into mechanical energy

Explanation:

hope it helps

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Answer:

Do you have a picture of your work?, Maybe i could help with it if you did.

Answer:

Hi, can you send the list of topics? I'd be happy to help you review. Also, did you meet with your instructor to complete the discussion-based assessment?

Explanation:

Answer:the answer is B

Explanation:

APE X

The technology that is based on the work of Subrahmanyan Chandrasekhar is an orbiting observatory to detect X-rays from space objects, therefore the correct option is B.

Chandrasekhar's limit is a type of maximum limited value that is used to define the maximum mass of a white dwarf star. The generally internationally considered value of the Chandrasekhar limit is about 1.44 times the mass of the sun which is approximately 2.765×10³⁰ kg.

In other words, one can say that Chandrasekhar limit is the maximum value that can attain 1.44 times the solar mass.

In other words, one can say that star with a mass more than 1.44 times that of the Sun does not form a white dwarf but  continues to collapse, finally forming a neutron star

An orbiting observatory to detect X-rays from space objects is based on the principle of Chandrasekhar's limit. The correct option is B.

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Answer:

Explanation:

I hope this was all you wanted. Everything else seems finished correctly.

Answer:

if its talking about earth then rotate I'll say

Answer:

universe is expanding

The direction of the field is the direction of the force on a positive test charge, which is the right response. This is due to the fact that the electric field's direction is determined by the force that would be applied to a test charge that is placed in the field.

A region of space called an electric field is one in which an electric force can be applied to other charged particles.

A charged particle, such as a positive test charge, will feel a force in an electric field that is proportional to the field's strength and the particle's charge.

This force always exerts itself in a direction perpendicular to the lines of the electric field there.

So, using a positive test charge as a reference, we define the direction of an electric field. A positive test charge will experience a force in one direction if it is placed in an electric field.

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The average acceleration for that time interval will be zero because the velocity is constant.

If an object's velocity changes, it is said to have been accelerated. An object's velocity can alter depending on whether it moves faster or slower or in a different direction. A falling apple, the moon orbiting the earth, and a car stopped at a stop sign are a few instances of acceleration. Through these illustrations, we can see that acceleration happens whenever a moving object changes its direction or speed, or both.

Velocity and speed describe how quickly or slowly an object is moving. We frequently encounter circumstances when we must determine which of two or more moving objects is going faster. If the two are travelling on the same route in the same direction, it is simple to determine which is quicker. It is challenging to identify who is moving the fastest when their motion is in the other direction. The concept of velocity is useful in these circumstances. Learn about the definition of velocity in this article as well as the distinction between speed and velocity.

the velocity is constant at -20 m/s. Hence the average acceleration for that time interval will be zero because the velocity is constant.

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Answer:

0

Explanation:

i did it on khan academy

The potential difference in volts required in the first part of the experiment to accelerate electrons to a speed of 6.1 × 107 m/s is 73 kV.

Potential difference is the amount of energy that is required to move a unit charge through an electric field from one point to another. The unit of potential difference is volts (V), and it is a scalar quantity. It is also known as voltage or electric potential difference.

The formula for calculating potential difference is as follows: Potential difference (V) = work done (J) / charge (C) or

V = W / Q,

where W is the work done and Q is the charge involved in the process

Work done is given as: W = F × d × cosθ

where, F is the force, d is the displacement, and θ is the angle between the force and the displacement.

Therefore, V = (F × d × cosθ) / Q

Field strength = 0.55 T

Charge on the electron, -e = 1.6 × 10¹⁹ C

Mass of the electron, me = 9.1 × 10⁻³¹ kg

Speed of the electron = 6.1 × 10⁷ m/s

The electric field (E) is given as: E = V / d

F = Q × E = -e × V/d = -1.6 × 10⁻¹⁹ × V / 0.5 = -3.2 x 10⁻¹⁹ × V N

θ = 0° (as the force and displacement are parallel)

W = F × d × cosθ = F × d = -3.2 × 10⁻¹⁹ × V × 0.5 = -1.6 × 10⁻¹⁹ × V J

Now, the kinetic energy (KE) of the electron is given as: KE = 1/2 mv²

Substituting the values, we get: KE = 1/2 mev² = 1/2 × 9.1 × 10⁻³¹ × (6.1 × 10⁷)² = 2.8 × 10⁻¹⁷ J

As the work done by the electric field is equal to the kinetic energy of the electron, we can equate the values:

1.6 × 10⁻¹⁹ × V = 2.8 × 10⁻¹⁷

Solving for V, we get: V = -2.8 × 10⁻¹⁷ / -1.6 × 10⁻¹⁹

V = 175 V

Therefore, the potential difference in volts required in the first part of the experiment to accelerate electrons to a speed of 6.1 × 10⁷ m/s is 175 V.

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To determine the number of storage bits required in the controller memory for the twisting joint (type T) of the industrial robot, we need to calculate the repeatability, round the deviations to a reasonable precision, and then calculate the number of addressable positions based on the range of the joint and the chosen accuracy level.

First, let's calculate the repeatability of the joint. Given that the range of rotation is 322°, the repeatability can be calculated as 6 times the standard deviation. Since the standard deviation is a measure of how spread out the data is, multiplying it by 6 ensures that the accuracy of the joint is as close as possible to, but less than, its repeatability.
Next, let's analyze the given data. The 10 samples of deviations from the commanded angles are: 0.176, 0.04, -0.345, 0.079, 0.309, -0.004, -0.102, 0.12, 0.075, and 0.1.
To calculate the standard deviation of these deviations, we need to find the mean and then calculate the differences from the mean. Squaring these differences and taking the average will give us the variance, which we can then take the square root of to obtain the standard deviation.

After calculating the standard deviation, we multiply it by 6 to obtain the repeatability.
Now, to determine the number of storage bits required, we need to consider the accuracy of the joint. The accuracy depends on the precision required for representing the deviations. Assuming a reasonable level of precision, we can round the deviations to, for example, 3 decimal places.
Finally, the number of storage bits required in the controller memory can be calculated by multiplying the range of the joint (322°) by the accuracy (e.g., 0.001°, considering 3 decimal places). This will give us the number of addressable positions, which can be represented by the required number of storage bits.

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Answer:

Point D

Explanation:

The epicenter of a hypothetical earthquake is located at the point where the earthquake begins.

(See the attached image).

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The  final speed of the combined masses is 0.186m/s

According to the law of collision, the sum of the momentum of the bodies before the collision is equal to the momentum after the collision.

Mathematically;

m1u1 - m2u2 = (m1+m1)v

Substituting the given parameters;

0.24(0.6) - 0.26(0.2) = (0.24+0.26)v

0.144 - 0.052 = 0.5v

0.092 = 0.5v

v = 0.092/0.5

v = 0.184m/s

Hence the final speed of the combined masses is 0.186m/s

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In a deep mine, temperatures typically rise as you go deeper into the Earth. This increase in temperature is known as the geothermal gradient.

On average, the temperature rises by approximately 1 degree Celsius for every 33 meters (or 1.8 degrees Fahrenheit for every 100 feet) of depth. However, it's important to understand that this rate can vary depending on several factors.

Geological conditions, local geothermal activity, and the specific location of the mine can all influence the actual rate of temperature increase. Some mines may experience a steeper geothermal gradient, meaning temperatures rise more rapidly with depth, while others may have a more moderate gradient.

The temperature increase poses challenges for miners, as it can lead to uncomfortable working conditions and the need for additional cooling systems. Proper ventilation and cooling strategies are crucial in deep mines to ensure the safety and well-being of workers.

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The complete question is:

In a deep mine, temperatures increase at the rate of approximately ____________ per kilometer.

A. 2.5°C

B. 25°C

C. 250°C

D. 2,500°C

When the wood is floating in the beaker of water then force is balanced.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

The mass of a small piece of wood and a beaker of water is equal to the mass when the wood is floating in the beaker of water, upward force is balanced by downward force so floating happen.

When the wood is floating in the beaker of water then force is balanced.

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Answer: 12.5 m/s.

v = d/t

(60 s/1 min)*(4 min) = 240 s

v = 3000 m/240 s  

v = 12.5 m/s  

Angular acceleration refers to the rate at which an object's angular velocity changes over time. It is a measure of how quickly an object's rotation is speeding up or slowing down. To find the angular acceleration, you will need to use the formula: angular acceleration = change in angular velocity / change in time.

To begin, you will need to have two sets of data: the initial angular velocity of the object and the final angular velocity of the object, as well as the time it took for the object to change from the initial velocity to the final velocity. Once you have this data, you can use the formula to calculate the angular acceleration.

For example, let's say an object starts with an angular velocity of 2 radians per second and after 5 seconds it has an angular velocity of 4 radians per second. To find the angular acceleration, you would use the formula: angular acceleration = (4 radians/second - 2 radians/second) / 5 seconds = 0.4 radians/second^2.

It's also important to note that the angular acceleration is a vector quantity and it has the same direction as the net torque applied on the body.

In summary, finding the angular acceleration is done by taking the change in angular velocity and dividing it by the change in time. By using this formula and having the necessary data, you can easily calculate the angular acceleration of an object.

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Intrinsic attributes refer to the inherent characteristics or qualities of an object, concept, or entity. These attributes are essential in defining and understanding the nature of something.

The use of intrinsic attributes can vary depending on the context, but here are a few common applications:

1. Classification and categorization: Intrinsic attributes help in categorizing and classifying objects or entities based on their inherent properties. For example, in a product catalog, intrinsic attributes such as size, color, and material are used to classify items into different categories.

2. Descriptive analysis: Intrinsic attributes analyze and describe objects by detailing their characteristics and features. Product reviews use attributes like performance, durability, and design for comprehensive evaluations.

3. Search and retrieval: Intrinsic attributes aid information retrieval by enabling efficient search and filtering. Attributes like author, title, and genre in a book database facilitate specific book searches.

4. Decision making: Intrinsic attributes are often used as factors in decision-making processes. By considering the intrinsic attributes of various options, individuals or systems can make informed choices. For example, when purchasing a car, attributes such as fuel efficiency, safety features, and price are considered to make a decision.

5. Personalization and customization: Intrinsic attributes personalize experiences by tailoring offerings to individual preferences. E-commerce websites utilize attributes like purchase history and preferences for personalized recommendations. Customization based on intrinsic attributes enhances user satisfaction and engagement.

Overall, the use of intrinsic attributes helps in understanding, organizing, and making informed decisions about objects, concepts, or entities by considering their inherent qualities and characteristics.

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Answer:

D. attraction

Answer:

attraction

Explanation:

gravity attracts, electromagnetic force can attract, and both strong and weak nuclear forces hold together an atom, attracting at some points

edge2020

The normative statement in this list is b.

The normative statement in this list is b. "You should wear a helmet when cycling." This is because it is expressing a value judgment and prescribing a course of action, rather than simply stating a fact like the other options. The other statements are all descriptive and objective, stating things that are generally true or observable, such as the number of wheels on a bicycle or the color of the sky. The statement about electricity is a scientific principle, but it is still not normative in nature.

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The value of the normal reaction force will be 4.65 kN and 31.76 kN.

Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.

The normal force on the car is,Na= Nb =1 kN

The force of the cable on the car is,F=1 kN

The force of the gravity is,W=mg

The balancing equation of force;

\(\rm N_A+N_B+F sin \theta_2 -mg cos \theta_2 =0 \\\\ \rm -Fcos \theta_2 +mg sin \theta_1 =0 \\\\ Fcos \theta_2 \times a -F sin \theta_2 \times b -mg cos \theta_1 \times c -mg sin \theta_1 \times e +N_B (c+d)=0 \\\\ N_A+N_B+F sin 30^0 - 5 \times 9.81 cos 30^0 =0 \\\\ -\)

Putting the value further;

\(\rm N_A+N_B+F sin 30^0 - 5 \times 9.81 cos 30^0 =0 \\\\ -F cos 30^0 + 9.81 sin 20^0 =0 \\\\ F cos 30^ 0 (0.6)-F sin30^0 (1.5)-(5 \times 10^6) \times 9.81 \times cos 20^0 (1)-(5)(9.81)sin 20^0 +N_B \times 1.75 =0\)

Solving the equation, we get;

\(\rm F_A = 19.37 \ kN \\\\ N_A=4.65 \ kN \\\\ N_B=31.76 \ kN\)

Hence, the value of the normal force swill be 4.65 kN and 31.76 kN.

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The height of the image is 27.56 inches, the area of the image is 1709.72 square inches, the height of each black bar at the top and bottom of the screen is 3.66 inches, and the area of each black bar is 226.92 square inches.

Image aspect ratio = 2.25:1

Image height = Image width / 2.25 = 27.56 inches

The image area is:

Image area = Image width x Image height = 62 inches x 27.56 inches = 1709.72 square inches

Now we can calculate the height of each black bar:

Black bar height = (TV height - Image height) / 2 = (34.88 inches - 27.56 inches) / 2 = 3.66 inches

The area of each black bar is:

Black bar area = Black bar width x Black bar height

To find the width of the black bars, we need to consider that the total height of the screen is the sum of the image height and the height of the black bars:

Total screen height = Image height + (2 x Black bar height) = 34.88 inches

So the width of the black bars is:

Black bar width = TV width = 62 inches

And the area of each black bar is:

Black bar area = Black bar width x Black bar height = 62 inches x 3.66 inches = 226.92 square inches

A black bar can refer to a variety of things depending on the context. In video editing, a black bar can refer to a strip of black that is added to the top or bottom of a video to create a widescreen effect, also known as letterboxing. This is often done to ensure that the video fits properly on screens with different aspect ratios.

In computing, a black bar can refer to a blank space that appears on a computer screen due to incorrect resolution settings or a display driver issue. This can be fixed by adjusting the display settings or updating the driver. In printing, a black bar can refer to a bar or stripe of black ink that is added to the edge of a document to indicate the end of a page or section. This is commonly seen in newspapers and magazines.

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Answer: 25 ° C is equal to 77 ° F

Explanation:

No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

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Answer:

the acceleration is 13.53m/s^2

Explanation:

The computation of the acceleration is given below:

As we know that

Total force = Mass × acceleration

where

Total force is 230 N

And, the mass is 17 kg

So, the acceleration is

= 230 ÷ 17

= 13.53 m/s^2

hence, the acceleration is 13.53m/s^2

Answer:

The resistance of a cylindrical segment of a conductor is equal to the resistivity of the material times the length divided by the area: R≡VI=ρLA. The unit of resistance is the ohm, Ω.

Explanation: