What property is primarily responsible for determining the type of electromagnetic energy and peak wavelength emitted by a star such as the Sun?

density
temperature
volume
composition

36 feet I'm hoping because that's what I got

Answer:

Its should be 46 feet.

Explanation:

Im so sorry if im wrong. Im learning this too rn. ahahh

Answer:

A)  two voltages are equal, B) the two voltages are different

C) voltage is the same V = 0, D)  V_{battery} = V_{Lamp} > V_{wire}

Explanation:

For this exercise, it is asked to build a circuit with the plug, the lamp and the battery, the circuit must be a series circuit

Before connecting the battery voltage is Vo as they indicate that it is ideal there are no losses, the voltages of the other elements are zero.

A) Voltages battery

a) single battery Vo

b) the battery is connected to the lamp this takes something current, but the electromotive force does not change therefore the voltage is Vo; This is because the battery's energy comes from a chemical reaction of the elements inside it.

in summary the two voltages are equal

B) voltage Lamp

a) when the bulb is single, its voltage is zero V = 0

since it has no energy

b) when in the circuit V = V₀ - V_r

where V_r is the voltage across the wire, due to its resistance, the energy for these voltages is given by the battery

in this case the two voltages are different

C) the voltage across the wire

a) unconnected V = 0

b) connected V = V₀ - V_L

where V_L is the voltage across the lamp due to its resistance

we can write the wire voltage

                V_r = i R

as they indicate that the wire is ideal, its resistance is zero R = 0, consequently

               V_r = 0

the voltage is the same V = 0

D) circuit voltage

 For this part we must write Ohm's law for this circuit

            V₀ = V_L + V_r

where V₀ is the battery voltage, V_L and V_r are the voltage of the lamp and the wire, respectively.

The voltage of each element is

                   V_L = i R_L

                   V_r = i R

This is a series circuit so the current is also constant

                 V₀ = i (R_L + R)

therefore the voltage in the battery is the highest V₀

the voltage across the wire if it is ideal is zero V_r = 0, if it is ideal its resistance is zero

therefore the voltage on the lamp is equal to the voltage of the battery

          V_{battery} = V_{Lamp} > V_{wire}

The radius of the orbit, measured from the center of Mars, should be approximately 1.04 x 10^7 meters to make the satellite take 8 times longer to complete one revolution of its orbit.

What is Orbit?

In physics, an orbit refers to the path that an object takes around another object under the influence of gravity. The object being orbited can be a planet, a star, a moon, or any other massive object. The object in orbit is constantly pulled towards the center of the object being orbited, but also has a forward velocity that keeps it moving in a curved path around the object

We can start by using the formula for the period of an orbit:

T = 2π √(r^3/GM)

where T is the period, r is the radius of the orbit, G is the gravitational constant, and M is the mass of the planet.

We can solve for r:

r = [(GMT^2)/(4π^2)]^(1/3)

We know that the satellite currently takes 9.2 hours to complete one revolution, so its current period is:

T1 = 9.2 hours = 33,120 seconds

We also know that we want the satellite to take 8 times longer to complete one revolution, so its new period will be:

T2 = 8 x T1 = 265,000 seconds

We can now plug in the given values into the equation to solve for the new radius:

r = [(G x mmars x T2^2)/(4π^2)]^(1/3)

r = [(6.67428 x 10^-11 N-m^2/kg^2) x (6.4191 x 10^23 kg) x (265,000 s)^2 / (4π^2)]^(1/3)

r ≈ 1.38 x 10^7 meters

However, we were asked for the radius measured from the center of Mars, so we need to subtract the radius of Mars to find the altitude above the surface:

altitude = r - rmars = 1.38 x 10^7 meters - 3.397 x 10^6 meters ≈ 1.04 x 10^7 meters

Therefore, the radius of the orbit, measured from the center of Mars, should be approximately 1.04 x 10^7 meters to make the satellite take 8 times longer to complete one revolution of its orbit.

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Answer:

it will go in my boy they get that tuchdown

Explanation:

because I said so

The bar would have been 3.048 meters above the ground and the goalpost would have been 10.9728 meters away as per the SI units.

A unit of measurement is a specified magnitude of a quantity that is established and used as a standard for measuring other quantities of the same kind. It is determined by convention or regulation.

1 feet = 0.3048 meters

10 feet = 10×0.3048 meters

            =3.048 meters

1 feet = 0.3048 meters

36.0 feet = 36×0.3048 meters

                =10.9728 meters

According to SI measurements, the goalpost would have been 10.9728 meters away and the bar would have been 3.048 meters above the ground.

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The size of the frictional force on the box is 2N

The size of the normal force on the box is 98.1 N

The ratio of the frictional force to the normal force is 0.02

The size of the frictional force on the box is calculated as follows:

Total force acting on the box = Net force + Normal force

Hence;

Normal force = Total force - Net force

Net force on the box = mass * acceleration

From the formula, v² = u² + 2as

where a = acceleration

v = final velocity

u = initial velocity

s = distance

a = v² - u² / 2s

v = 0 m/s

u = 2 m/s

s = 10 m

a = 0 - 2² / 2 * 10

a = - 0.2 m/s²

Net force = 10 * -0.2 m/s²

Net force = 2 N

The frictional force = Stopping Force = Net force

Hence, frictional force = 2 N.

Normal force = mass * g

Normal force = 10 * 9.81

Normal force = 98.1 N

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The earthquake would occur 13 minutes before 10:05 a.m. which will be at 9.52 am.

The p-waves travel with a constant velocity of 7 km/s

The time can be calculated by using the formula

t = d / v

where

T1 =  10:05 a.m

d is the distance they take to travel from the epicenter

v is the speed of the p-waves

On average, the speed of p-waves is

v = 7 km/s

d = 5600 km (given)

Substituting the values in the formula;

t = d / v

t = 5600 ÷ 7

t = 800 seconds

Converting into minutes,

t = 800 ÷ 60

t = 13.3

≈ 13 mins

T1 -  13 mins = T2

10:05 - 13 mins = 9.52 am

It means the earthquake occurred prior 13 minutes, that is at 9.52 am.

Therefore, the earthquake occurred at 9.52 am.

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Answer:

The energy from food and then from plants and then from sun.

As sun is the ultimate source of energy.

Explanation:

Distance = 100 m, 1000m, marathon

As the distance is covered by the person, so the muscular energy is used and thus the energy comes form out food.

As we know that the energy can neither be created nor be destroyed it can transform from one form to another.

So, the energy form the food which we consume is converted into the kinetic energy as we run.

Answer:

Gironde Ecosystem is an important biological and cultural area.

Explanation:

Answer:

Explanation:

The mass of the object can be found by using the formula

\(m = \frac{f}{a} \\ \)

f is the force

a is the acceleration

From the question we have

\(m = \frac{6}{3} \\ \)

We have the final answer as

Hope this helps you

Each of the five friends needs to pay £12 to cover the cost of their own meals and contribute towards the birthday person's meal. Using mean allows us to distribute the cost equally among the friends, ensuring a fair division of expenses for the meal.

To determine how much each of the five friends needs to pay, we can use the concept of averages (mean) and divide the total cost by the number of people paying.

In this scenario, the total cost of the meal for 6 people is £12 per person. Since the other 5 friends have decided to pay for the birthday person's meal, they will collectively cover the cost of their own meals plus the birthday person's meal.

To calculate the total cost covered by the five friends, we can subtract the cost of one person's meal (since the birthday person's meal is being paid by the group) from the total cost. The cost of one person's meal is £12.

Total cost covered by the five friends = Total cost - Cost of one person's meal

= (£12 x 6) - £12

= £72 - £12

= £60

Now, to find out how much each of the five friends needs to pay, we divide the total cost covered by the five friends (£60) by the number of friends (5).

Amount each friend needs to pay = Total cost covered by the five friends / Number of friends

= £60 / 5

= £12

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Answer:

vlarge = 4vsmall

Explanation:

Khan Academy

Answer:

speed of light

Explanation:

the sun's light is 8 mins behind imaging that a billion fold

Given:

the speed of the car is

Time during which it comes to rest

Required: acceleration is to be calculated

Explanation:

first, convert the speed from miles per hour to meters per second

in doing so we use a conversion factor

that is given as

Then the speed is ,

now calculate the acceleration,

we know that

where v is the final velocity that is zero because finally, the car comes to rest.

plugging all the values in the above relation, we get

negative sign shows that acceleration in the opposite direction

Thus, the acceleration is

When the plate separation is increased, the capacitance decreases, To keep the charge constant when the capacitance diminishes, the voltage between the plates increases. As a result, the energy stored in the capacitor grows. As a result, increasing the plate gap causes an increase in the amount of energy stored in the capacitor.

When a parallel-plate capacitor is charged by a battery and then disconnected, the energy stored in the capacitor is given by the formula:

U = (1/2) * C * V^2

Where U is the stored energy, C is the capacitance, and V is the voltage across the plates. When the plate separation is increased, the capacitance decreases, as the formula for capacitance is:

C = (ε * A) / d

Here, ε is the permittivity of the dielectric material, A is the area of the plates, and d is the distance between the plates.

Since the battery is disconnected, the charge Q on the plates remains constant. The relationship between charge, capacitance, and voltage is given by:

Q = C * V

As the capacitance decreases, the voltage across the plates increases in order to keep the charge constant. This, in turn, increases the energy stored in the capacitor. Therefore, the external work done when the plate separation is increased leads to an increase in the energy stored in the capacitor.

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In a DC generator, the generated electromotive force (emf) is directly proportional to the rotational speed of the generator's armature and the strength of the magnetic field within the generator.

This relationship is described by the equation for the generated emf in a DC generator:

Emf = Φ * N * A * Z / 60

Where:

Emf is the generated electromotive force (in volts),

Φ is the magnetic flux density (in Weber/meter^2\(meter^2\) or Tesla),

N is the number of turns in the armature winding,

A is the effective area of the armature coil (in square meters),

Z is the total number of armature conductors, and

60 is a constant representing the conversion from seconds to minutes.

From this equation, we can see that the generated emf is directly proportional to the magnetic flux density (Φ) and the product of the number of turns (N), effective area (A), and the total number of armature conductors (Z). This means that increasing any of these factors will result in a higher generated emf.

The magnetic flux density (Φ) can be increased by using stronger permanent magnets or increasing the strength of the field windings in the generator.

The number of turns (N) and the effective area (A) are design parameters and can be optimized for a specific generator. Increasing the number of turns or the effective area will result in a higher generated emf.

Similarly, the total number of armature conductors (Z) can be increased to enhance the generated emf.

By controlling and optimizing these factors, the generated emf in a DC generator can be increased, resulting in higher electrical output. However, it is important to note that there are practical limits to these factors based on the design and construction of the generator.

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Explanation:

ac = v^2/r

= (7.0 m/s)^2/(0.75 m)

= 65 m/s^2

Answer:

it snaps

Explanation:

the more force you put on it, the wired out it gets than it snaps. I think

Answer:

The power output of the engine is 1,000 Watt

Explanation:

Mechanical Power

Power is the amount of energy transferred or converted per unit of time. In the SI, the unit of power is the watt, equal to one joule per second.

The power can be calculated as:

\(\displaystyle P=\frac {W}{t}\)

Where W is the work and t is the time.

The engine does a work of W=60,000 J during t=60 s. Calculate the power:

\(\displaystyle P=\frac {60,000}{60}\)

P = 1,000 Watt

The power output of the engine is 1,000 Watt

Answer:

Explanation: relationship between the object and the observer's frame of reference.

Explanation:

if we convert it into g/cm it'll be

2000 grams

The distance traveled by by the dolphin is determined as 11.1 m.

The distance traveled by an object is the product of speed and time of motion of the object. It measures the total path covered by the object.

The distance traveled by by the dolphin is calculated as follows;

Distance = speed x time of motion

Distance = 1.85 m/s x 6 s

Distance = 11.1 m

Thus, the distance traveled by by the dolphin is determined as 11.1 m.

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Answer:

The magnitude of the normal force is equal to the weight of the box multiplied by the cosine of the angle θ.

Explanation:

When a box is pulled along a frictionless surface at an angle θ, the normal force acting on the box is perpendicular to the surface and opposes the force of gravity.

In this case, the box is accelerating to the right, which means the force F is greater than the force of gravity pulling the box downward.

The magnitude of the normal force (N) can be determined by breaking down the forces in the vertical direction:

Sum of vertical forces = 0

N - mg * cos(θ) = 0

Here, mg * cos(θ) represents the vertical component of the weight of the box, which is balanced by the normal force.

Rearranging the equation, we have:

N = mg * cos(θ)

The angle to the horizontal the ball was launched at can be determined using trigonometry. Once you have the initial horizontal and vertical velocities, you can use the tangent function to calculate the launch angle.

Velocity is a physical quantity that describes the rate at which an object changes its position. It is a vector quantity, which means it has both magnitude and direction. The magnitude of velocity is the speed of the object, while its direction is the direction of motion.

Time is a concept that refers to the sequence of events that occur in a continuous progression, from the past, through the present, and into the future. It is a way to measure the duration or the length of events or periods, and it is a fundamental aspect of our experience and understanding of the world.

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Answer:

E = 389 MeV

Explanation:

The total energy of particle A, will be equal to the sum of rest mass energy and relative energy of particle A. Therefore,

Total Energy of A = E = Rest Mass Energy + Relative Energy

Using Einstein's Equation: E = mc²

E = m₀c² + mc²

From Einstein's Special Theory of Relativity, we know that:

m = m₀/[√(1-v²/c²)]

Therefore,

E = m₀c² + m₀c²/[√(1-v²/c²)]

E = m₀c²[1 + 1/√(1-v²/c²)]

where,

m₀c² = rest mass energy = 140 MeV

v = relative speed = 0.827 c

Therefore,

E = (140 MeV)[1 + 1/√(1 - (0.827c)²/c²)]

E = (140 MeV)(2.78)

E = 389 MeV

Answer:

Perpendicular to the polarization

Explanation:

In this question, we are interested in selecting the option that best complete the question.

The direction of propagation of light is perpendicular to the polarization. Polarized and unpolarized light behave in different manners.

In unpolarized light, the oscillation of the magnetic and electric occurs in all directions to the propagated light.

However, in the case of polarized light, there is a restriction of the electric field oscillation. And thus, it only oscillates in a direction which is perpendicular to the propagation light

The description that tells two processes that scientists think move Earth's lithospheric plates is convection in the mantle and pressure of magma on the edge of the plate.

The Earth's lithosphere is the rocky outer part of Earth which is made up of the brittle crust and the top part of the upper mantle.

The Earth's lithosphere deflects the convections and as the convections churn clockwise of anticlockwise, they drag the  lithosphere with it via friction an this is what is stipulated to cause tectonic plate movements.  

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Answer: convection in the mantle and pressure of magma on the edge of the plate

Explanation: I took the unit test

The significant figure of a value or measurement is the number of important digits that it contains

The main purpose for learning about significant figures in science and/or technology courses is precision of measurements.

In science and technology experiments and reseaches, we always want to ensure that measured values are as close to the true values as possible. This is because any deviation from the true value can invalidate the result of the experiment. Also, errors due to repeated approximations can have cummulative effects on the experimental results.

Therefore, the knowledge of significant figures is useful in science and technology to be able to record values of experimental measurements as close as possible to the actual value.

To determine the image characteristics using the 3 principal rays and SALTS (Size, Attitude, Location, Type), we'll consider both lenses and mirrors separately. Here's how you can analyze each case:

Lenses:

Place an object at different distances to the left of a lens with a focal length (f).

a) Object placed beyond 2f:

In this case, the object is placed far beyond twice the focal length of the lens.

Principal ray 1: A ray parallel to the principal axis will pass through the focal point on the opposite side.

Principal ray 2: A ray passing through the optical center will continue in a straight line without any deviation.

Principal ray 3: A ray passing through the focal point on the object side will emerge parallel to the principal axis.

The image will be formed on the opposite side of the lens, between the focal point and twice the focal length.

SALTS:

Size: The image will be smaller than the object.

Attitude: The image will be inverted.

Location: The image will be located between the focal point and twice the focal length.

Type: The image will be real.

b) Object placed at 2f:

In this case, the object is placed at twice the focal length of the lens.

Principal ray 1: A ray parallel to the principal axis will pass through the focal point on the opposite side.

Principal ray 2: A ray passing through the optical center will continue in a straight line without any deviation.

Principal ray 3: A ray passing through the focal point on the object side will emerge parallel to the principal axis.

The image will be formed on the opposite side of the lens at twice the focal length.

SALTS:

Size: The image will be the same size as the object.

Attitude: The image will be inverted.

Location: The image will be located at twice the focal length.

Type: The image will be real.

c) Object placed between f and 2f:

In this case, the object is placed between the focal point and twice the focal length of the lens.

In this case, the object is placed far beyond twice the focal length of the mirror.

Principal ray 1: A ray parallel to the principal axis will reflect through the focal point on the same side.

Principal ray 2: A ray passing through the focal point on the object side will reflect parallel to the principal axis.

Principal ray 3: A ray passing through the center of curvature will reflect back along the same path.

The image will be formed on the opposite side of the mirror, between the focal point and twice the focal length.

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