Describe how energy from the sun interact with substances

The mutual inductance between the two solenoids is 26.42 H.

The mutual inductance (M) between the two solenoids in the spark coil of an automobile can be calculated using the formula:

M = ΔV x Δt / ΔI

where:
- M is the mutual inductance,
- ΔV is the change in the voltage (emf) induced in the second solenoid (35 kV or 35,000 V),
- Δt is the time it takes for the current to fall (5.8 ms or 0.0058 s),
- ΔI is the change in current in the first solenoid (7.7 A - 0 A = 7.7 A).

Plugging in the values, we get:

M = (35,000 V) x (0.0058 s) / (7.7 A)
M = 26.42 H (Henry)

So, the mutual inductance between the two solenoids is approximately 26.42 H.

This value represents the degree of coupling between the two solenoids, as it quantifies how effectively a change in current in one solenoid induces a voltage in the other solenoid. In the case of a spark coil in an automobile, this high mutual inductance allows for efficient energy transfer and the generation of the high voltage necessary for ignition.

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Answer:

Planets that are farther from the sun than the earth (all but Mercury and Venus) will exhibit retrograde motion.

If the position of the planet is observed relative to the background stars, the planet will appear to move backward relative to the stars when the earth is moving in an Eastward direction faster than the planet, and the planet appears to move backwards relative to the stars

(The planet will be on the side of the earth that is opposite that of the sun)

Answer:

D. flammability

Explanation:

I took the test and got it right

The resistance of the 30.0 cm long piece of carbon with a 0.900 mm x 0.900 mm square cross-section is approximately 12.96 ohms.

To find the resistance of a 30.0 cm long piece of carbon with a 0.900 mm x 0.900 mm square cross-section, you can use the formula:

Resistance (R) = (Resistivity × Length) / Cross-sectional Area

First, we need the resistivity of carbon, which is approximately 3.5 x 10⁻⁵ ohm meters (Ω·m). Next, convert the given dimensions to meters:

Length: 30.0 cm = 0.30 m
Cross-sectional dimensions: 0.900 mm = 0.0009 m

Now, calculate the cross-sectional area of the square:

Area = 0.0009 m x 0.0009 m = 8.1 x 10⁻⁷ m²

Finally, plug the values into the formula:

R = (3.5 x 10⁻⁵ Ω·m × 0.30 m) / (8.1 x 10⁻⁷ m²)
R ≈ 12.96 ohms

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The period of oscillation of the system is 0.038 s.

The angular frequency of the system and the period of oscillation of a 0.313-kg mass attached to a spring with a force constant of 51.7 N/m are given as follows:

Angular frequency:

Angular frequency is defined as the ratio of the spring constant to the mass of an object and is denoted by the symbol ω. Mathematically, angular frequency, ω = k/mHere, the spring constant k = 51.7 N/m, and mass m = 0.313 kg. Substitute the values in the formula and solve for ω.ω = k/m = 51.7/0.313 = 165.1 rad/Therefore, the angular frequency of the system is 165.1 rad/s.Period of oscillation: The period of oscillation is defined as the time taken by the object to complete one full oscillation and is denoted by the symbol T. It is given by the formula: T = 2π/ωHere, ω = 165.1 rad/s.Substitute the values in the formula and solve for T.T = 2π/ω = 2π/165.1 = 0.038

Therefore, the period of oscillation of the system is 0.038 s.

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Answer:

When the object is placed between centre of curvature and principal focus of a concave mirror the image formed is beyond C as shown in the figure and it is real, inverted and magnified.

solution

Answer: I think ions I’m not 100% sure if it’s not let me know

Explanation:

If a ball is given a push so that it has an initial velocity of 2 m/s down a certain inclined plane, then the distance it has rolled after t seconds is s = 2t + t². Then it takes 11 seconds for the velocity to reach 24 m/s. The correct option is D.

To find the time it takes for the velocity of the ball to reach 24 m/s, we need to solve for the time when the velocity function equals 24 m/s.

The velocity function is the derivative of the distance function, so we'll first find the derivative of the distance function s = 2t + t² with respect to time t:

ds/dt = d/dt(2t + t²)

ds/dt = 2 + 2t

Now we can set the velocity function equal to 24 m/s and solve for t:

2 + 2t = 24

Subtracting 2 from both sides:

2t = 22

Dividing both sides by 2:

t = 11

Therefore, it takes 11 seconds for the velocity to reach 24 m/s.

The correct answer is (d) 11 seconds.

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From conservation of energy, the height he will reach when he has gravitational potential energy 250J is 0.42 meters approximately

The given weight of Elliot is 600 N

From conservation of energy, the total mechanical energy of Elliot must have been converted to elastic potential energy. Then, the elastic potential energy from the spring was later converted to maximum potential energy P.E of Elliot.

P.E = mgh

where mg = Weight = 600

To find the height Elliot will reach, substitute all necessary parameters into the equation above.

250 = 600h

Make h the subject of the formula

h = 250/600

h = 0.4167 meters

Therefore, the height he will reach when he has gravitational potential energy 250J is 0.42 meters approximately

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The mass of satellite B is equal to 2 X 10³ Kg.

Mass of satellite A = m = 1.5 X 10³ Kg

Mass of satellite B = m'

Velocity of satellite A = v = 8 X 10³ m/s

Velocity of satellite B = v' = 6 X 10³ m/s

To find mass of satellite B = m' =

Using the theorem of conservation of linear momentum we get,

= momentum of satellites initially = momentum of satellites finally

= mv + m'v' = m(0) + m'(0)

= mv + m'(-v') = 0

= mv = + (m'v')

= 1.5 X 10³ X 8 X 10³ = m' X 6 X 10³

= m' = ( 1.5 X 10³ X 8 X 10³ ) / 6 X 10³

= m' = 2000 Kg

Thus, mass of satellite B is 2 X 10³ Kg.

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The conversion of a star's core to iron marks the end of its life because iron is the most stable element in terms of nuclear binding energy per nucleon.

Fusion reactions that produce elements lighter than iron release energy, while fusion reactions that produce elements heavier than iron require energy input. Therefore, once a star's core has converted to iron, further fusion reactions can no longer sustain the star against gravitational collapse.

Stars with masses below a certain threshold, known as the Chandrasekhar limit, can end up with iron cores. This limit is approximately 1.4 times the mass of the Sun.

These stars, known as low- to medium-mass stars, go through a series of fusion reactions in their cores, gradually building up heavier elements until they reach the production of iron. Once the core is predominantly composed of iron, the fusion reactions cease, leading to the star's collapse and the subsequent stellar explosion, such as a supernova or a planetary nebula.

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Answer:

1080 meters is the answer

Answer:

a)     1: 100  F₂ = 100 F₁,  b) P₁ = P₂   1:1

Explanation:

The pressure in a system is the same for a given horizontal line, therefore

          P₁ = P₂

where subscript 1 is for small piston and index 2 is for large piston 2

a) they ask the relation of the forces

pressure is defined by

        P = F / A

for the small piston

        P₁ = F₁ / A₁

the area of ​​the piston is

        A₁ =π r₁²

        P₁ = F₁ /π r₁²

for big piston

         P₂ = F₂ / A₂

in the exercise indicates that the diameter of the large piston is 10 times the diameter of the small piston

         A = π r₂²

         r₂ = 10 r₁

          r₂ = π 10² r₁²

we substitute

         P₂ = \(\frac{F_2}{ \pi \ 100 \ r_1^2}\)

we equalize the pressures

          \(\frac{F_1 }{ \pi \ r_1^2 } = \frac{F_2}{ \pi \ 100 r_1^2}\)

           F₁ = F₂ / 100

            F₂ / F₁ = 100

therefore the force ratio is

             1: 100

b) according to Pascal's principle for the same height the pressure is the same regardless of the shape of the container, therefore the pressure of the two pistons is the same

           P1 = P2

             1: 1

40.47 m/s is the speed at which the arrow departs the bow.

Does velocity not depend on gravity?

An object's horizontal velocity is constant for small displacements and operates independently of the vertical force of gravity. The horizontal and vertical halves of an object that is projected at an angle to gravity can also be separated. The force of gravity has no impact on the horizontal velocity component either.

The arrow will start moving and accelerating as soon as it is let go from the bow. The arrow obeys the second law of motion, according to Newton. The method

m = mass of the arrow (kg) = 0.0850 kg

a = acceleration of the arrow (m/s²)

F = force (N) = 89.0 N

F=m*a

a = 1,047.059 m/s²

When an object accelerates, it will travel in a non-uniform manner. The method

\(v^{2} = v_{0} ^{2} +2*a*d\)

= 40.47 m/s

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A 200-pound man carries about 120 pounds of water.

The human body is made up of a variety of substances, including water, fat, protein, and minerals. The percentage of body weight that is made up of water varies depending on a person's age, sex, and body composition.

On average, the human body is about 60% water. This means that if a person weighs 200 pounds, about 60% of their body weight is water:

Weight of water = 0.6 x 200 pounds

Weight of water = 120 pounds

Therefore, a 200-pound man carries about 120 pounds of water. However, this is only an estimate, as the actual amount of water a person carries may vary depending on factors such as hydration status, muscle mass, and body fat percentage.

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Answer:

Sustainable energy is essential to meet uncontrolled rising demand for energy, reduce pollution and shift to resources that can be used again and again.

Explanation:

Considering the Sustainable Goals floated by United Nation, it is essential for all countries to improve their score in all the SD goals.

One of the SD goal is to shift to sustainable energy.

Sustainable energy is essential from following three points

- Reuse of energy source again and again to outcome the fear of resource depletion

- Sustainable energy source shall ensure cleaner environment

- Sustainable energy sources are also essential to meet the rising consumption of energy with time all across the globe.

Some common examples are - Solar energy, Wind Energy, Energy from nuclear fuels etc.

Answer:

They first spend it on necessities.

Answer:

I = 5[amp]

Explanation:

Electrical power is defined as the product of voltage by current.

\(P=V*I\)

where:

P = power = 1150 [W]

V = voltage = 230 [V]

I = current [amp]

Now replacing:

\(1150=230*I\\I=1150/230\\I=5[amp]\)

A 15 [amp] fuse must be used. Always the fuse must be larger than the operating current, to protect the equipment from very high currents. above 15 [amp]

Just divide the both, you will get the answer!

does it sound rude?

im sorry for that!

Answer:

10

Explanation:

When you apply a force of one pound over an area of one square inch, the pressure exerted is one pound per square inch (psi). This is because pressure is defined as the force exerted per unit area. True.

Therefore, if you increase the force or decrease the area, the pressure will increase accordingly. For example, if you apply a force of two pounds over an area of one square inch, the pressure will be two psi. Conversely, if you apply a force of one pound over an area of two square inches, the pressure will be 0.5 psi. Understanding the relationship between force, area, and pressure is important in many fields, including engineering, physics, and mechanics.

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The acceleration rate of the car travelling at 27m/s in 1.2metres is 303.8m/s².

Acceleration of a body refers to the amount by which a speed or velocity increases. The acceleration of a moving body can be calculated using one of the equation of motion as follows:

v² = u² + 2as

Where;

According to this question, a car traveling at 27 m/s hits a tree. if the front end of the car is 1.2 meters, the acceleration rate of the car can be calculated as follows:

27² = 0² + 2(a)(1.2)

729 = 2.4a

a = 303.8m/s²

Therefore, 303.8m/s² is the acceleration of the car.

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Answer:

direction of the afar and somali people

Answer:

How much you pay in taxes depends on the amount of your taxable income

Explanation:

The total amount expected to be payed as taxes is a factor of the amount of taxable income earned within the given tax period.

The taxable income is found by subtracting the amount of deductions and exemption allowed in the tax year from the gross income. It is also specified as the adjusted gross income

The set marginal  tax rate indicates the percentage of the taxable income that is to be paid as taxes, such that there are three different ranges or tax brackets and taxes are paid according to the bracket to which a taxable income belongs.

Answer:

\(from \: first \: equation \: of \: motion \\ v = u + at \\ a = \frac{v - u}{t} \\ a = \frac{15 - 24}{12} \\ a = - 0.75 \: {ms}^{ - 2} \)

Answer:

a = -0.75 m/s^-2

when parallel rays from a distant object travel in air and then are incident on the concave end of a glass rod with a radius of curvature of 15.0 cm and a refractive index of 1.50, they undergo refraction. The exact path of the rays can be determined using Snell's Law, but without specific incident angles or distances, we cannot provide a precise answer.

When parallel rays from a distant object travel in air and then are incident on the concave end of a glass rod with a radius of curvature of 15.0 cm and a refractive index of 1.50, they undergo refraction.

Refraction is the bending of light as it passes from one medium to another. The refractive index of a medium determines how much the light is bent when it enters that medium.

To understand how the rays are bent in this scenario, we can use Snell's Law. Snell's Law relates the angles of incidence and refraction to the refractive indices of the two media involved.

In this case, the rays are traveling from air to glass. The refractive index of air is approximately 1.00, and the refractive index of the glass is given as 1.50. The angle of incidence is the angle between the incident ray and the normal to the surface of the glass, and the angle of refraction is the angle between the refracted ray and the normal.

Using Snell's Law, we can write:

n1 * sin(angle of incidence) = n2 * sin(angle of refraction)

Substituting the given values, we have:

1.00 * sin(angle of incidence) = 1.50 * sin(angle of refraction)

Since the rays are incident on the concave end of the glass rod, they will converge towards the axis of the rod. The exact path of the rays can be determined using geometrical optics, but we are not given the specific incident angles or the distance of the object. Therefore, we cannot provide a precise answer in this case.

However, it is important to note that the refractive index of the glass and the curvature of the rod will cause the rays to bend towards the axis of the rod. The specific angles of incidence and refraction will depend on the exact geometry of the situation.
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Answer:

Explanation:

Kinetic energy involves motion so something that is not moving has zero kinetic energy.

Potential energy does not involve motion and is based on position in a field like gravity and magnetic.

Answer:

After 3 seconds, the velocity is 4.5+3×1.5=9 m/s.

The coefficient of friction between the soap and the tub is 0.1.

The coefficient of static friction is the ratio of the maximum static friction force between the surfaces in contact before movement commences to the normal force.

Mathematically, the coefficient of static friction is given as;

μ = F/N

where;

Before an object start moving, the static friction must be overcame since it resists the motion of the object.

The normal force on the soap is the vertical downward force on the soap applied by Alan, N = 500 N

The force of friction on the soap, F = 50 N

μ = F/N

μ = 50 / 500

μ =  0.1

Thus, the coefficient of friction increases with increase in the horizontal force of friction and decrease in the normal force on the object.

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