Although electromagnetic waves can always be represented as either photons or waves, in the radio part of the spectrum we typically do not discuss photons (like we do in the visible) because they are at such a low energy. Nevertheless, they exist. Consider such a photon in a radio wave from an AM station has a 1545 kHz broadcast frequency.

Required:
What is the energy, in joules, of the photon?

The field lines start from a positive charge and end at a negative charge. The lines from two similar charges move away from each other.

The field lines between two electrons are given as,

The field lines between a proton and a neutron is given by,

Answer:

585lb

Explanation:

Given the following

F1 = 235lb

F2 = 350lb

The resultant is expressed as;

FR = F1+F2

Substitute the given values

FR = 235+350

FR = 585lb

Hence the magnitude of the resultant is 585lb

Answer:

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun

The break shot speed of the player is determined as 96.5 ft/s.

use the following kinematic equation to determine the time of motion of the player.

h = vt + ¹/₂gt²

h = 0 + ¹/₂gt²

h = ¹/₂gt²

t = √(2h/g)

t = √(2 x 2.75/32.17)

t = 0.171 s

vx = x/t

vx = 16.5 ft / 0.171 s

vx = 96.5 ft/s

Thus, the break shot speed of the player is determined as 96.5 ft/s.

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Answer:

 e = 50.27 give / s

Explanation:

The expression for simple harmonic motion is

    x = A cos (wt + Ф)

in this case they give us the amplitude A = 3.9 cm and frequency f = 8.0 Hz

The angular and linФear variables are related

      e = 2π d

      e = 2π 8

      e = 50.27 give / s

let's look for the constant fi

       so let's find the time to have the maximum displacement

       v = dx / dt

       v = -A w sin (wt +Ф)

for the point of maximum displacement the speed is I think

        0 = - sin (0 + Ф)

therefore fi = 0

Let's put together the equation of motion

          x = 0.039 sin (50.27 t)

          v = 0.039 50.27 sin (50.27 3)

           v = 1.96 50 0.01355

            v = 0.0266 m / s

Explanation:

time = Charge / Current.

time = 80/5

time = 16 seconds.

Answer:

25N

it will float since the water displaced is less than the weight. buoyancy = 25n down

Explanation:

40 newtons - 25 newtons = 25 newtons

The buoyant force on the ball is 25 Newton and the ball will float.

From the information given, we're informed that a hollow ball weighs 40 newtons and a water tank displaces 15 newtons of water.

Therefore, the buoyant force on the ball will be:

= 40N - 15N = 25N

Since we got a positive value, it means that the ball will float on water.

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Answer:

5gbyb5hn6 kub5yyb6hb5 Hi hi7ki6mh4yutyimimy mjymyjmjyhnttbr

equal in magnitude but opposite in direction

Answer: expansion

Explanation: yw

Answer:

Polarization.

Reason being that phenomena verifies the transverse nature of light

The mass of the object is approximately 0.457 kg.

The mass of the object attached to the trolley can be calculated using the principle of conservation of momentum. Since the two trolleys couple together and move as a single system after the collision, the total momentum before and after the collision should be the same. Given the mass of one trolley is 0.80 kg and the initial speed is 1.1 m/s, the momentum before the collision is 0.80 kg * 1.1 m/s = 0.88 kg·m/s. After the collision, the total mass is the sum of the two trolleys, and the final speed is 0.70 m/s.

Using the momentum equation, the mass of the object can be calculated as follows:

Total momentum before collision = Total momentum after collision

0.88 kg·m/s = (0.80 kg + mass of the object) * 0.70 m/s

Solving for the mass of the object, we get:

0.88 kg·m/s = (0.80 kg + mass of the object) * 0.70 m/s

0.88 kg·m/s = 0.56 kg + 0.70 kg * mass of the object

0.88 kg·m/s - 0.56 kg = 0.70 kg * mass of the object

0.32 kg = 0.70 kg * mass of the object

Dividing both sides by 0.70 kg, we find:

mass of the object = 0.32 kg / 0.70 kg = 0.457 kg

The two trolleys collide and couple together, the total momentum before the collision is equal to the total momentum after the collision according to the principle of conservation of momentum.

The momentum of an object is defined as the product of its mass and velocity. In this case, the mass of one trolley is known (0.80 kg) and the initial speed is given (1.1 m/s), allowing us to calculate the momentum before the collision.

After the collision, the two trolleys move together at a new speed (0.70 m/s). By setting the initial momentum equal to the final momentum and solving for the unknown mass of the object, we can find its value.

In the calculation, we subtract the masses of the two trolleys from the total mass in order to isolate the mass of the object.

Dividing the difference in momentum by the product of the known mass and the new speed, we obtain the mass of the object. In this case, the mass of the object is approximately 0.457 kg.

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Because of the way our eyes have developed, we can only detect waves that have the specific duration and frequency that define them; this is why we can really see white light but not electromagnetic radiation or gamma radiation.

Bands : "Wavelength of 0.11 nm" for band "X ray band alone".

band "visible light band only": speed of \(3\) × \(10^{8} m/s\)  frequency of \(2.331. 10^{16}\)Hz, frequency of  \(5.48 10^{14}\) Hz. a wave length of 637 nm.

The aforementioned waves share any characteristics with the other band. We might be able to view the X-rays if they were like that.

band "neither band": "speed of 3 × \(10^{8} km/s"\). The light moves more quickly than anything else.

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Answer:

200 meters

Explanation:

20 x 10 = 200

Answer:

Explanation:

We shall find first the velocity of ball at the time when string breaks. Let it be v . During its fall on the ground , 1.02 m below, we use the formula

h = 1/2 gt² where t is time of fall .

1.02 = 1/2 x 9.8 x t²

t²= .2081

t = .456

During this time it travels horizontally at distance of 2.5 m with uniform velocity of v

v x .456 = 2.5

v  = 5.48 m /s

centripetal acceleration

= v² / r where r is radius of the circular path

= 5.48² / .478

= 62.82 m /s²

Explanation:

Let's calculate the components of the football's velocity:

\(v_{0x} = (23.9\:\text{m/s})\cos{51.5°} = 14.9\:\text{m/s}\)

\(v_{0y} = (23.9\:\text{m/s})\sin{51.5°} = 18.7\:\text{m/s}\)

a) The time it takes for the football to travel 36.0 m horizontally is

\(t = \dfrac{x}{v_{0x}} = \dfrac{36.0\:\text{m}}{14.9\:\text{m/s}} = 2.4\:\text{s}\)

During this time, the y-displacement of the football is

\(y = v_{0x}t - \frac{1}{2}gt^2\)

\(\:\:\:\:= (18.7\:\text{m/s})(2.4\:\text{s}) - \frac{1}{2}(9.8\:\text{m/s}^2)(2.4\:\text{s})^2\)

\(\:\:\:\:= 16.7\:\text{m}\)

This means that the football cleared the crossbar by 16.7 m - 3.05 m = 13.7 m

b) To determine whether the football was rising or falling while clearing the crossbar, let's look at the y-component of its velocity after 2.4 s:

\(v_y = v_{0y} - gt = 18.7\:\text{m/s} - (9.8\:\text{m/s}^2)(2.4\:\text{s})\)

\(\:\:\:\:\:\:= -4.82\:\text{s}\)

Since its sign is negative, this means that the football was already on its way down.

Answer:

the principal energy level is d because electrons are 2 times more

Answer:

The two charged objects will exert equal and opposite forces on each other.

Explanation:

Coulomb's law states that the electrical force between two charged objects is directly proportional to the product of charges on the objects and inversely proportional to the square of the distance between the two objects.

This force of attraction or repulsion between the two charged objects is always equal and opposite.

Therefore, the two charged objects will exert equal and opposite forces on each other.

Answer:

2

Explanation:

Because 2 waves 4 secs means 1 in 2s

The period of these waves is 2s. and The right option is A)2s.

The period of a wave is the time taken by a wave to complete one cycle.

The formula of period from the question is given below.

⇒ Formula:

⇒ Where:

From the question,

⇒ Given:

⇒ Substitute these value above into equation 1

Hence, The period of these waves is 2s.

The right option is A)2s

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The electric heater draws a current of 4.5 amps.

Using Ohm's Law, we can calculate the current drawn by the electric heater. Ohm's Law states that the current (I) flowing through a conductor is equal to the voltage (V) applied to the conductor divided by its resistance (R):

In this case, the voltage (V) is 120 V and the power (P) of the electric heater is 540 W. We can use the formula P = VI, where P is the power in watts, V is the voltage in volts, and I is the current in amperes. Solving for I, we get:

Therefore, the electric heater draws a current of 4.5 amperes (A) when operated at 120 volts (V).

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According to Chargaff's rule, the amounts of adenine (A), thymine (T), and guanine (G) in the DNA molecule are equal to each other. The amounts of cytosine (C) and guanine (G) are also equal.

Erwin Chargaff was a biochemist, author, Bucovinian Jew who immigrated to America during the Nazi era, and professor of biochemistry at Columbia University's medical school.

Chargaff found patterns among the four bases, or chemical building blocks, of DNA, which are directly related to DNA's function as the genetic material of living things.

He was born in Austria-Hungary. Heraclitean Fire: Sketches from a Life Before Nature, an autobiography he penned, received positive reviews.

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Answer:

The  internal resistance is  \(r = 0.5 \ \Omega\)

Explanation:

From the question we are told that the resistance of

   The  resistance of the resistor is  \(R = 20.0\ \Omega\)

    The  voltage is \(V = 12.0 \ V\)

     The magnitude of the voltage fall is  \(e = 0.300\ V\)

Generally the current flowing through the terminal due to the voltage of the battery  is  mathematically represented as

        \(I = \frac{V}{R}\)

substituting values

        \(I = \frac{12.0 }{20 }\)

       \(I = 0.6 \ A\)

The internal resistance of the battery is mathematically represented as

      \(r = \frac{e}{I}\)

substituting values

     \(r = \frac{0.300}{ 0.6 }\)

    \(r = 0.5 \ \Omega\)

The internal resistance of the battery is 0.5 ohms.

To calculate the internal resistance of the battery, we use the formula below

Formula:

Where:

Make r the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, The internal resistance of the battery is 0.5 ohms.

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Due to the use of lenses and mirrors to focus and gather light, binoculars have a magnifying effect when used to view light reflections, making objects appear closer and larger, much as under a microscope.

Binoculars use a variety of lenses to collect and focus light from a distant object, so when viewing the reflection of light through them, the image seems magnified. A prism or mirror then bounces back the focused picture, which is then sent to the binoculars' eyepiece where it is further enlarged before being seen by the viewer's eyes.

The binoculars' magnification effect can make items seem much closer and larger, much like a microscope, which likewise utilises lenses to magnify small objects. Contrarily, binoculars utilise lenses and mirrors to first collect and focus distant light before magnifying the focused image. The microscope, on the other hand, uses a set of lenses to magnify an image of an item directly.

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The ray does not bend when it enters the semi circular glass block - Light ray incident on semicircular block at 90 degrees, therefore there is no change in the direction of ray at P.

Electromagnetic radiation that falls within the region of the electromagnetic spectrum that the human eye can see is known as light or visible light.

Light is electromagnetic radiation that the human eye can perceive. From radio waves with wavelengths measured in meters to gamma rays with wavelengths shorter than around 1 1011 meters, electromagnetic radiation occurs throughout an incredibly broad range of wavelengths.

Light governs our sleep-wake cycle and is crucial to our health and wellbeing. In actuality, "light" that is visible is a type of radiation, which is just energy that moves in the form of electromagnetic waves. It can alternatively be explained as a flow of "wave-packets," or particles, known as photons.

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When materials vibrate, waves are created that travel through the substance, and this energy is what we hear as sound. Earthquakes are earth vibrations that cause the (potential) energy held within rocks to be released (as a result of their pressure-generating relative positions). Seismic waves are produced by earthquakes.

How do sound waves and earthquakes compare?

The waves lose energy as they move through the air with sound or through the ground with shaking during an earthquake. Therefore, a band can be heard louder close to the stage than farther away, and an earthquake can be felt more strongly close to the fault than farther away.

In actuality, sound in the air cannot match how quickly earthquake waves move. In rock, the compressional or "P" wave of an earthquake moves at the In actuality, sound in the air cannot match how quickly earthquake waves move. The speed of a P wave is typically 10,000 mph. The speed of sound through air is roughly 750 mph.

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Gender inequality in mechanical engineering can manifest through biased hiring practices, limited opportunities for women to advance to leadership roles, and a lack of representation in the industry.

Despite efforts to promote gender equality, women are still underrepresented in the field of mechanical engineering. This can be due to a variety of factors, including biased hiring practices, limited opportunities for career advancement, and a lack of representation in the industry.

To address these issues, it is important for companies and organizations to promote diversity and inclusion initiatives, such as actively recruiting women and people of diverse backgrounds, providing mentorship and networking opportunities, and advocating for policies that support work-life balance and equal pay. By creating a more inclusive environment, the field of mechanical engineering can attract and retain more talented individuals and foster innovation and growth.

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--The complete question is, How does gender inequality manifest in the field of mechanical engineering, and what are some potential solutions to address this issue?--

Force on the rocket at 3 s is 212.5 N.

Acceleration of the rocket at 3 s is 26.56 m/s².

Force is defined as a strength that can change the state of rest or motion of an object when applied on it. Force is the product of mass and acceleration of the object.

Here,

Mass of the rocket = 8 kg

Given that,

F = a + bt²

Force at t = 0 is 100 N

100 = a + bx0 = a

Therefore, a = 100 N

Force at t = 2 s is 150 N

150 = a + b x2²

150 = 100 + 4b

b = 50/4 = 12.5 N

Net force on the rocket at 3 s, F = 100 + 12.5 x 3²

F = 100 + 112.5

F = 212.5 N

Acceleration of the rocket at 3 s, a = F/m

a = 212.5/8

a = 26.56 m/s²

Hence,

Force on the rocket at 3 s is 212.5 N.

Acceleration of the rocket at 3 s is 26.56 m/s².

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Answer:

Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.

Answer:

25.0 N

Explanation:

Just took the test

Electromotive force is the electrical activity produced by a non-electrical source and is measured in volts.. Electrical transducers, which include batteries and generators, transform other forms of energy into electrical energy to produce an emf.

Due to the high internal resistance of the 8-dry cells compared to the low internal resistance of the accumulators, the current generated by the dry cells is too low compared to the current generated by the accumulators. The accumulators will generate the bigger currents required to start the engine because the dry cells' internal resistance is far higher than that of the accumulators. NB. Generally speaking, accumulators have low internal resistance. mostly because the acid therein is a superb conductor.

The effort done by the battery to transform the chemical energy of the cell into electrical energy is what creates the voltage that the electromotive force (e.m.f.) of a battery correlates to (the current in the circuit).

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