a small, single engine airplane is about to take off. the airplane becomes airborne, when its speed reaches 173.0 km/h. the conditions at the airport are ideal, there is no wind. when the engine is running at its full power, the acceleration of the airplane is 3.80 m/s2. what is the minimum required length of the runway?

Answer:

the level on the top

Explanation:

_+$+$

The fact that the speed of light is constant as it travels through a vacuum means that the relationship between the wavelength and frequency of photons is essential to understanding the electromagnetic spectrum. The correct options are a and b.

This constant speed of light is represented by the equation c = λν, where c is the speed of light, λ is the wavelength, and ν is the frequency.

Option a is correct. Since the speed of light is constant, if the wavelength of a photon is longer, its frequency must be lower to maintain the constant speed. This inverse relationship means that photons with longer wavelengths indeed have lower frequencies.

Option b is also correct. Radio wave photons have longer wavelengths and lower frequencies than gamma ray photons. This is because gamma rays are at the higher energy end of the electromagnetic spectrum, while radio waves are at the lower energy end.

Option c is incorrect. X-rays have difficulty penetrating the Earth's atmosphere due to their high energy and short wavelengths. This means they cannot be transmitted through the atmosphere around the world as easily as radio waves or other lower energy waves.

Option d is incorrect. Ultraviolet photons actually have more energy than visible photons. They have shorter wavelengths and higher frequencies, which results in higher energy levels according to the equation E = hν, where E is energy and h is Planck's constant.

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The magnitude of the total acceleration of the pin when t=0 is 1.2 in/s^2.

To explain further, the acceleration of the pin is the sum of two components: tangential acceleration and centripetal acceleration. The tangential acceleration is responsible for increasing the speed of the pin, and its magnitude is constant at 1.2 in/s^2.

The centripetal acceleration is due to the circular motion of the pin in the slot CD and is directed towards the center of the circle.

To find the magnitude of the total acceleration at t=0, we need to first find the magnitude of the tangential acceleration and the centripetal acceleration separately. We know that the tangential acceleration is 1.2 in/s^2, and we can use the formula for centripetal acceleration, a_c = v^2/r, where v is the velocity of the pin and r is the radius of the circle. At t=0, the velocity of the pin is zero, and the radius of the circle is 3.5 inches.

Therefore, the centripetal acceleration is also zero.

Since the centripetal acceleration is zero, the magnitude of the total acceleration is equal to the magnitude of the tangential acceleration, which is 1.2 in/s^2.

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Answer:

Explanation:

Resultant of 12 and 3 ohm in series = 15 ohm

Resultant of 6 and 3 ohm = 9 ohm

Total resultant resistance of circuit = 15 x 9 / (15 + 9)

= 5.625 ohm

current drawn from battery = 4 / 5.625

= .711 A

ii )current through 12 ohm = 4 / (12 + 3 )   , because potential  diff over 12 and 6 ohm will be 4 V .

current through 12 ohm = .267 A

iii )

current through 6 ohm

= .711 - .267

= .444 A

potential difference

= .444 x 6

= 2.664 V .

Answer:

-1.24 m/s

Explanation:

Total momentum before collision = total momentum after collision

Total momentum before collision = (mass of full back * velocity of fullback) + (mass of lineman * velocity of line man).

Mass of full back = 112 kg, mass of line bag = 120 kg, velocity of full back  6 m/s (east), velocity of line back = -8 m/s (west). Hence:

Total momentum before collision = (112 * 6) + (120 * -8) = 672 - 960 = -288 kgm/s

The total momentum after collision = (mass of full back + mass of line back) * velocity after collision.

Let velocity after collision be v, hence:

The total momentum after collision = (112 + 120)v = 232v

Total momentum before collision = total momentum after collision

-288 = 232v

v = -288 / 232

v = -1.24 m/s

Therefore after collision, the two players would move at a velocity 1.24 m/s west (the same direction as the lineman).

The word "kinetic" in the Kinetic Theory Model says particles are moving. Option B

The Kinetic Theory Model helps us to explain the physical properties of gases.

The model famously states that gases are made up of tiny particles that are in constant, random motion.

How slow or fast the motion is, and thus the kinetic energy, depends on the temperature.

When the temperature is high, it will result in greater motion.

The Kinetic Theory Model is a very popular and has been used to explain many different physical phenomena.

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If A is a matrix, its projection onto its column space is always represented by the matrix P=A(AA)1A. This simplifies to AA in the scenario where A is orthogonal.

Orthogonal objects are connected by their perpendicularity to one another in Euclidean geometry. Lines of line segments that cross at a perpendicular angle are said to be connected orthogonally. Similar to this, two vectors are said to be orthogonal if they intersect at a 90-degree angle.

When two systems are orthogonal, they do not impact one another through interaction. At some point or junction, they come together, but other from that, neither system affects the other. Because of this independence, moving, testing, or changing things in one system does not affect components in the other system.

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Answer:

\(\lambda=4.81\times 10^{-8}\ m\)

Explanation:

We have,

The surface temperature of the star is 60,000 K

It is required to find the wavelength of a star that radiated greatest amount of energy. Wein's displacement law gives the relation between wavelength and temperature such that :

\(\lambda T=2.89\times 10^{-3}\)

Here,

\(\lambda\) = wavelength

\(\lambda=\dfrac{2.89\times 10^{-3}}{60000}\\\\\lambda=4.81\times 10^{-8}\ m\)

So, the wavelength of the star is \(4.81\times 10^{-8}\ m\).

The truck is moving at approximately 50.9 km/h.

First, we need to find the kinetic energy of the car. Kinetic energy is given by the equation KE = (1/2)mv^2, where m is the mass of the object and v is its velocity. Plugging in the values we have, we get:

KE(car) = (1/2)(1000.0 kg)(15.0 km/h)^2

Note that we need to convert the velocity from km/h to m/s, since the unit of kinetic energy is joules (J), which is a unit of energy per unit mass per unit distance squared per unit time squared. To do this, we can use the conversion factor 1 km/h = 0.2778 m/s.

KE(car) = (1/2)(1000.0 kg)(15.0 km/h x 0.2778 m/s/km)^2
       = (1/2)(1000.0 kg)(4.17 m/s)^2
       = 8687.5 J

Now we can use the fact that the truck has 23 times the kinetic energy of the car to find the kinetic energy of the truck:

KE(truck) = 23 KE(car)
         = 23 x 8687.5 J
         = 199962.5 J

Finally, we can use the same equation as before to solve for the velocity of the truck:

KE(truck) = (1/2)mv^2

Rearranging and plugging in the values we have, we get:

v = sqrt(2 KE(truck) / m(truck))

Where m(truck) is the mass of the truck, which is given as 2000.0 kg. So:

v = sqrt(2 x 199962.5 J / 2000.0 kg)
 = sqrt(199.9625 J/kg)
 = sqrt(199.9625 m^2/s^2/kg)
 = sqrt(199.9625) m/s

Rounding to the nearest tenth of a meter per second, we get:
v = 14.1 m/s

So the truck is moving at about 14.1 meters per second, or approximately 50.7 km/h.

To answer your question, we first need to calculate the kinetic energy of the car and then use that information to find the speed of the truck.

1. Calculate the kinetic energy of the car:
Kinetic Energy (KE) = (1/2) * mass * velocity^2
First, convert the car's velocity from km/h to m/s: 15.0 km/h * (1000 m/km) / (3600 s/h) = 4.17 m/s

KE_car = (1/2) * 1000.0 kg * (4.17 m/s)^2 = 8689.72 J

2. Find the kinetic energy of the truck:
KE_truck = 23 * KE_car = 23 * 8689.72 J = 199,863.56 J

3. Calculate the truck's speed:
KE_truck = (1/2) * mass * velocity^2
Rearrange the equation for velocity:
velocity = sqrt(2 * KE_truck / mass)

velocity = sqrt(2 * 199,863.56 J / 2000.0 kg) = 14.14 m/s

Now, convert the truck's velocity back to km/h: 14.14 m/s * (3600 s/h) / (1000 m/km) = 50.9 km/h

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Answer:

so i believe your answer is abt 1800-2400

Explanation:

According to the Dietary Guidelines for Americans 2010, sedentary teen girls between the ages of 13 and 18 need 1,600 to 1,800 calories per day, while active girls require 2,200 to 2,400 calories each day

The force exerted on the test charge is 0.07 N when it is placed in an electric field with a magnitude of 2.0 * 10^2 N/C.

To determine the force exerted on a test charge in an electric field, we can use the formula:

Force (F) = Charge (q) * Electric Field (E)

Given:

Charge (q) = 0.00035 C

Electric Field (E) = 2.0 * 10^2 N/C

Substituting the values into the formula:

Force (F) = 0.00035 C * 2.0 * 10^2 N/C

To multiply the values, we multiply the numeric parts and keep the units:

Force (F) = (0.00035 * 2.0) C * 10^2 N/C

Calculating the numeric part of the multiplication:

Force (F) = 0.0007 C * 10^2 N/C

To simplify the expression, we can multiply the numeric part and adjust the units:

Force (F) = 0.07 N

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Raising the temperature results in the radiator giving off photons of high-energy ultraviolet light. As heat is added, the radiator emits photons across a wide range of visible-light frequencies

Answer:

North Korea I'm pretty sure

A. Controlled Variable.

I hope this helps!

Answer:

The force exerted by the rope on the bucket of water is 66.195 N.

Explanation:

Given;

mass of the bucket, m = 4.5 kg

acceleration of gravity, g = 9.81 m/s²

upward acceleration of the bucket, a = 4.9 m/s²

The upward force applied on the bucket by the rope is calculated as;

F = ma + mg

F = m(a + g)

F = 4.5(4.9 + 9.81)

F = 4.5(14.71)

F = 66.195 N

Therefore, the force exerted by the rope on the bucket of water is 66.195 N.

The change in volume of 0.800 m³ of seawater carried from the surface to the deepest point of the Mariana Trench is approximately -0.036 m³

To calculate the change in volume of seawater when it is carried from the surface to the deepest point of the Mariana Trench, we can use the formula for the bulk modulus of a fluid:

ΔV = -(V * ΔP) / B

Where: ΔV is the change in volume, V is the initial volume of seawater, ΔP is the change in pressure, B is the bulk modulus of seawater.

Given values: V = 0.800 m³, ΔP = 1.13 * 10⁸ N/m², B = 2.34 * 10⁹ N/m².

Let's calculate the change in volume: ΔV = -(0.800 m³* 1.13 * 10⁸ N/m²) / (2.34 * 10⁹ N/m²)

= -0.036 m³

Therefore, the change in volume of 0.800 m³ of seawater carried from the surface to the deepest point of the Mariana Trench is approximately -0.036 m³. Note that the negative sign indicates a decrease in volume due to the high pressure at that depth.

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Answer:

The Total Mechanical Energy

The total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy (abbreviated TME).

Thermal energy and mechanical energy describes the sum of potential energy and kinetic energy of objects or systems. Correct option is D.

Potential Energy: This is the energy that an object possesses due to its position or condition. For example, a book placed on a shelf has potential energy because it can potentially fall down. The higher the object is positioned, the more potential energy it has.

Kinetic Energy: This is the energy of motion. An object that is moving has kinetic energy. The kinetic energy of an object depends on its mass and its velocity (speed).

Thermal Energy: This is the energy associated with the random motion of particles within a substance. It's related to temperature and is a form of kinetic energy at the microscopic level.

Mechanical Energy: This is the sum of potential energy and kinetic energy in a mechanical system. In other words, it accounts for both the energy an object has due to its position and the energy it has due to its motion.

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Differentials are the components of a car that transfer engine torque to the axles allowing the wheels on the same axle to turn at different speeds.

There are two differentials in a car. The first one is located on the rare wheels and the second one is located on the front wheels.

The purpose of differentials is to allow the wheels to turn at different speeds required when the car is making a turn. The differentials send the torque from the transmission to the drive wheels.

During the turn, the differentials allow the front and rare wheels to turn at different speeds.

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Transformation of Energy

Answer:

x rays is the correct answer

Answer:

D.

Explanation:

There are three physical properties of matter that involves solid, liquid and gas.

The last statement is correct as it says: boiling and melting points are similar as both changes the physical state of matter. But are different as boiling point changes liquid into gas for example: liquid at high boiling point changes into vapors (gas) and melting point changes solid into liquid for example: ice at high melting point changes into liquid.

Hence, the correct option is "D".

The skier will have the highest speed at the bottom of the hill where the gravitational potential energy is converted entirely into kinetic energy. This means that the height of the hill will determine the speed at the bottom, and the higher the hill, the higher the speed.

Therefore, the skier will have the highest speed at the bottom of hill (d) if we ignore friction.

Gravitational potential energy is the energy that an object possesses by virtue of its position in a gravitational field. It is the energy that an object has due to its height above the ground or reference level in a gravitational field.

The formula for gravitational potential energy is:

PE = mgh

Where PE is the gravitational potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height of the object above the ground or reference level.

Comparing the heights of the hills, we can see that hill (d) is the highest, followed by hill (c), hill (b), and finally hill (a).

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Explain

A skier starts from rest at the top of each of the hills shown in the figure.

Image for A skier starts from rest at the top of each of the hills shown in the figure. On which hill will the skier

On which hill will the skier have the highest speed at the bottom if we ignore friction:

Answer:

d

Explanation:

the answer of the above mentioned question is 2N to the left.

hope this helps!

Answer:

21.75 miles is 35km.

Explanation:

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To sterilise a 50.0-g glass infant bottle, we must increase its heat from 22.0 to 95.0 degrees Celsius, or 3066 J of heat is transferred.

Heat is the result of the movement of kinetic energy within a material or an item, or from form of energy to a material or an object. Electromagnetic energy can be transported using three different mechanisms: radiation, conduction, and convection. Conduction of heat through solids, convection of liquids and gases, and electromagnetic radiation (radiation).

When a substance is subjected to a material-specific phase-change temperature, the material immediately undergoes a phase shift from a solid to a liquid. sources include solar energy, heat pumps, deep geothermal heat pumps, nat gas, lpg (LP), oil, coal, and wood.

50.0 g (0.84 J/g C) of heat was transported (95 C - 22 C)

= 3066 J of heat transferred

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Answer:

792J

Explanation:

Use the formula Force × Distance

With 110 newtons being the force and 7.2 meters being the distance

Which gives 792 and work us measured in joules therefore its joules

Work done is the dot product of force and displacement. The work done on the box to push across the surface for 7.2 m by applying a force of 110 N is 792 J.

Force is an external agent acting on a body tp change it from the state of motion or rest.  Force is a vector quantity thus, it is characterized by a magnitude and direction.

When force acting on a body results in displacement of the body, it is said to be work done on the body. The work done on the body is the product of force and displacement.

W = F d.

Given the force acting on the box = 110 N

 displacement d = 7.2 m

Work done w = 110 N × 7.2 m

                       = 792 J.

Therefore, the work done on the box is 792 J.

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Answer:

the object's position.

Explanation: might help ion know