Andrew plays trumpet in the concert band. He holds the trumpet still at his side until it is time for him to play. When it is time, he brings the trumpet up to his mouth and starts to play. Which statement correctly connects the motion of the trumpet with Newton’s first law of motion?

Answer:

The potential area of wind power in the country is about 6074 sq. km with wind power density greater than 300 watt/m2. More than 3,000 MW of electricity could be generated at 5 MW per sq km. The commercially viable wind potential of the country is estimated to be only about 448 MW.

11 A is the amount of current that crosses the wire.

According to Ohm's law,

If all other physical parameters and temperatures remain constant, the voltage across a conductor is directly proportional to the current flowing through it.

V ∝ I

V= IR where,

V = Voltage across a conductor

I = Current flowing through the conductor

R= Resistance and also known as constant of proportionality

Given,

Resistance of wire(R)  = 10 ohms

Voltage applied(V) = 110V

Current(I) = ?

According to the formula

110V  = I × 10Ω

I = 110/10 = 11 A

Hence, current intensity  of 11 A crosses a wire of 10 ohms if the voltage applied to the extremes of the wire is 110 V

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The magnitude of the friction force on the 50 kg skier is 171.4 N.

To calculate the magnitude of the friction force, we can use the equation:

Friction force = coefficient of friction * normal force

First, let's find the normal force acting on the skier. The normal force is the force exerted by the surface perpendicular to the skier's weight. In this case, it is equal to the skier's weight, which is given by:

Weight = mass * gravity

Weight = 50 kg * 9.8 m/s^2 (acceleration due to gravity)

Weight = 490 N

Next, we can substitute the values into the friction force equation:

Friction force = 0.10 * 490 N

Friction force = 49 N

So, the magnitude of the friction force acting on the skier is 49 N.

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It appears that your question is missing crucial information such as the specific differential equations and the particular scenario you want to relate them to. To provide you with an accurate and helpful response, I would need the complete details of the problem. Please feel free to resubmit your question with the necessary information, and I'll be happy to assist you.

An equation is a mathematical statement in the form of a symbol that states that two things are exactly the same. Equations are written with an equal sign, as follows: x + 3 = 5, which states that the value x = 2. 2x + 3 = 5, which states that the value x = 1. The statement above is an equation. In metaphysics, the particular or individual is usually contrasted with the universal. Universal concerns features that can be exemplified by different particulars. Particular things are often seen as concrete spatiotemporal entities as opposed to abstract entities, such as properties or numbers.In metaphysics, the particular or individual is usually contrasted with the universal. Universal concerns features that can be exemplified by different particulars. Particular things are often seen as concrete spatiotemporal entities as opposed to abstract entities, such as properties or numbers.

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Answer:

Non-examples of conduction include convection, radiation, and deformation. Convection is the transfer of heat through the movement of a liquid or gas, whereas radiation is the transfer of energy through electromagnetic waves. Deformation is a change in shape due to force.

Answer:  some examples of non-conductive materials include paper, glass, rubber, porcelain, ceramic and plastic.

Explanation:

Answer:

\(\huge\boxed{\sf F= 350 \ N}\)

Explanation:

Considering pivot as the central point,

Key:

\(F_1r_1=F_2r_2\)

Here,

Substitute the givens in the above formula.

\(F(1.2)=600(0.7)\\\\F(1.2)=420\\\\Divide \ 1.2 \ to \ both \ sides\\\\F=420/1.2\\\\F= 350 \ N\\\\\rule[225]{225}{2}\)

The correct case clause would be A. Case Is >7.

In a Select Case block, the case clauses are used to check different conditions against a selector value. The selector value is compared with each case clause, and the first matching case clause is executed.

To determine which case clause will be true when the selector value is greater than or equal to 7, we need to consider the available options:

A. Case Is >7: This case clause will be true when the selector value is greater than 7.

B. Case Is = 8: This case clause will be true only when the selector value is exactly 8.

Since we are interested in finding the case clause that matches when the selector value is greater than or equal to 7, option A (Case Is >7) is the correct choice. It covers all values greater than 7, including 8 and any other number greater than 8.

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Answer:

20 minutes

Explanation:

.....

.........

Answer:

200 m / min

Explanation:

Total distance = 2000 m

Total time = 2+4+1+3 = 10 minutes

Average speed = 2000 m / 10 min = 200 m/min

Answer:

The resultant force working on the helicopter can be calculated using the formula:

Resultant force = mass x acceleration

We know that the mass of the helicopter is 3000 kg and the acceleration is the acceleration due to gravity, which is 10 m/s^2.

The force of lift that opposes the weight of the helicopter is equal to:

Resultant force = 3000 kg x (10 m/s^2 + 25 m/s^2)

Resultant force = 3000 kg x 35 m/s^2 = 105,000 N

So the resultant force working on the helicopter is 105,000 N, this is the force that the helicopter's engines need to exert to overcome the force of gravity and maintain its constant speed of 25m/s.

Answer:

Explanation:

Given:

F = 10 N

m = m₁

R = R₁

_________

F₁ - ?

Centripetal force:

F = m·V² / R

F₁ = m₁·(V₁)² / R₁ = m·(2·V)² / R =  4·m·V² / R = 4·F

Strength will increase by 4 times:

F₁ = 4·10 = 40 N

Remember to use colons to introduce a list, a quote, or an explanation, and semicolons to separate closely related independent clauses or items in a list with internal punctuation.

1. Incorrect: I have a few favorite foods; pizza, sushi, and pasta.
  Correct: I have a few favorite foods: pizza, sushi, and pasta.

In this example, a colon is used to introduce a list.

2. Incorrect: She has three hobbies: painting, reading, and running; she spends her weekends doing them.
  Correct: She has three hobbies: painting, reading, and running; she spends her weekends enjoying them.

In this example, a colon is used to introduce a list, and a semicolon separates two independent clauses.

3. Incorrect: I wanted to visit my friend; however: the weather was bad.
  Correct: I wanted to visit my friend; however, the weather was bad.

Here, a semicolon is used to join two independent clauses, while a comma follows a transitional phrase.

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The car is traveling at a speed of 16.96 m/s.Resonance occurs because the bumps are spaced 1 wheel circumference apart.Given the parameters of wheel radius, suspension spring constant, and car mass.

To find the speed of the car during resonance, we can use the relationship between the natural frequency of the suspension system and the speed of the car. The natural frequency of the system is given by the formula: f = (1 / 2\(\pi\)) * \(\sqrt{(k / m)}\), where k is the spring constant and m is the mass of the car. In this case, the bumps occur at intervals of 1 wheel circumference, which is equivalent to the distance traveled in one period of oscillation. We can relate this distance to the speed of the car using the formula: v = f * λ, where λ is the wavelength (2\(\pi\)r), and r is the wheel radius. Solving these equations, we find that the car is traveling at a speed of 16.96 m/s.

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Answer: 17cm.

Explanation:

The equation you're using is:

Δd = df - di

Which means the change in position is equal to the final position minus the starting position. In this case that works out to 20cm - 3cm = 17cm. We're only interested in how much the snail moved, not how long it took to move, so even though they give a time it actually doesn't matter for this question.

Answer:

electrical to mechanical

Explanation:

we can equate the two quantities of heat to find c: m_water * c_water * ΔT = m_material * c * ΔT, c = (m_water * c_water * ΔT) / (m_material * ΔT)

the above expression yields c = 0.20 kcal/kg * C°.

The formula for calculating the specific heat (c) of a material is:

ΔQ = m * c * ΔT

c = ΔQ / (m * ΔT)

ΔT = 100°C - 40°C = 60°C

m_water = 100 gΔQ = m_water * c_water * ΔT = 100 g * 1.00 kcal/kg * ΔT

m_material = 50 g

ΔT = 40°C - 0°C = 40°C

ΔQ = m_material * c * ΔT

So, we can equate the two quantities of heat to find c:

m_water * c_water * ΔT = m_material * c * ΔT

c = (m_water * c_water * ΔT) / (m_material * ΔT)

the above expression yields  temperature c = 0.20 kcal/kg * C°.

The first container's mass and temperature are multiplied together, and the result is added to the second container's mass and temperature to determine the mixture's water temperature. Finally, divide that outcome by the combined water masses in each container.

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The various process used by farmers from sowing of seeds to the market-ready products are:

Here are the various processes used by farmers from sowing of seeds to the market-ready products:

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Answer:

I believe its a vector quantity

Hope this helps!!!

Answer:

Both scalar and vector qualities

Explanation:

To determine the most inexpensive way to ship the jewelry boxes, we need to know the dimensions and cost of the available flat-rate shipping boxes from the post office. Once we have this information, we can compare the cost of shipping 270 jewelry boxes using each of the available flat-rate shipping boxes and choose the one with the lowest cost.

Assuming we have this information, here is a plan for finding the most inexpensive way to ship the jewelry boxes:

1. List the available flat-rate shipping boxes from the post office along with their dimensions and cost.
2. Calculate the volume of each jewelry box by multiplying its dimensions (1 3/4 inches by 2 1/4 inches by 3/4 inch) to get 2.53125 cubic inches.
3. Calculate the total volume of the 270 jewelry boxes by multiplying the volume of one jewelry box by the number of boxes (2.53125 x 270 = 683.4375 cubic inches).
4. For each flat-rate shipping box, calculate the number of jewelry boxes that can fit inside by dividing the volume of the shipping box by the volume of one jewelry box.
5. Calculate the cost of shipping 270 jewelry boxes using each of the available flat-rate shipping boxes.
6. Choose the flat-rate shipping box with the lowest cost.

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A 0.1mm diameter glass tube is inserted into an ethyl alcohol at 20 degrees centigrade in a cup. The angle of alcohol with the tube is 0 degrees. D = 0.1 mm = 0.001m, alcohol angle is 0 degrees, ethyl alcohol

\(η=1.1×10^-3 N⋅sec/ m², s_g\)

=0.79.

We have to determine how much glycerin rises in the tube. The force that moves the liquid through the tube is the difference between the downward force of gravity on the liquid column and the upward capillary force produced by the surface tension of the liquid against the walls of the tube.

The height to which the fluid rises in a capillary tube may be measured by balancing the capillary force against the force of gravity on the column.

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Answer:

Abiotic referfers to non-living and biotic factors are living or once living

Explanation:

Answer:

YES

Explanation:

The temperature of the system remains constant in isothermal compression, and the internal energy is the function of the temperature only so, the internal energy also remains constant. Thus, for the isothermal compression, there will be no change in the internal energy of the system.

Answer:

An image can be seen in the mirror because the light reflected from an object falls on the mirror and it is reflected.

The definitions that apply to either rotational or linear accelerations are:

The rate of change of the velocity.

The rate of change of the rotational velocity.

Accelerations can be either linear or rotational, depending on the type of motion being considered. Linear acceleration describes the change in velocity of an object that is moving in a straight line, while rotational acceleration describes the change in rotational velocity of an object that is spinning around an axi

In both cases, acceleration is defined as the rate of change of velocity. This means that the acceleration of an object can be calculated by determining the change in velocity over a certain time period.

Linear acceleration is often measured in units of meters per second squared (m/s²), while rotational acceleration is typically measured in units of radians per second squared (rad/s²).

Both types of acceleration are important concepts in physics, and are used to describe a wide range of phenomena, from the motion of vehicles and machines to the behavior of celestial bodies in space.

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Answer:

Thus, the time for the remaining 120 miles: 8.5 - 6 = 2.5 h

Explanation:

The remaining 120 miles was (1 - 5/9 = 4/9) of the total journey.

Then, total distance: 120 ÷ 4/9 = 120 × 9/4 = 270 miles

The distance for 25 mph: 270 × 5/9 = 150 miles

The time for 25 mph: 150 ÷ 25 = 6 h

The boat spent 2.5 hours on the remaining 120 miles.

Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.

According to the question, The remaining 120 miles was (1 - 5/9) = 4/9of the total journey.

Then, total distance travelled by the boat: 120 ÷ 4/9 = 120 × 9/4 = 270 miles.

The distance travelled by the boat at 25 mph: 270 × 5/9 = 150 miles.

The time taken to travel this distance: 150 ÷ 25 = 6 hours.

Hence, the time for the remaining 120 miles is: 8.5 - 6 = 2.5 hours.

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The magnitude of the resultant vector is 13.9m.

The size of the resulting vector can be determined using the Pythagorean theorem. As you can see from these two examples, the result of adding three or more rectangular vectors is easy to determine using the Pythagorean theorem. The vectors should be added in a different order. Equation 2 Subtracts the vectors in opposite directions from each other to get the resulting vector.

Where vector B is in the opposite direction to vector A and R is the resulting vector. The resulting vector is defined as a single vector that produces the same effect as many vectors produced together. The size of a vector is the length of the vector. The absolute value of vector a is represented by |a|. For more information on vector sizes, see Vectors overview. The formulas for the sizes of 2D and 3D vectors in terms of coordinates are derived on this page.

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The answer is five dots.

sorry i  meant three dots not five

If the thermal coefficient of resistivity for nichrome is 4.5 x 10-4 1/co, the   temperature of the coil of the coil is 0.56 a.

Resistivity is a central property of a material, and it shows how unequivocally the material opposes or transmits electric flow. A low resistivity is an obvious sign of a material which promptly permits electric flow. The resistivity increments implies that the conductivity of the material abatements. For metals or transmitters, it is said that they have a positive temperature co effective. The worth α is positive. Electrical resistivity is a property interesting to each material, which is fundamental to comprehend prior to making and planning electrical and electronic frameworks.

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