alpha particles are emitted in nuclear decay processes with typical energies of 5 mev. in analogy with example 4.9, determine the range of kinetic energies of an alpha particle trapped in a nucleus-sized region and deduce whether the alpha particle can exist inside the nucleus.

Their wavelengths for an FM radio frequency of 88 MHz is 34.1 cm and for a frequency of 108 MHz 27.8 cm.

The wavelength of an electromagnetic wave is inversely proportional to its frequency. So, the higher the frequency, the shorter the wavelength.

what is The formula to calculate the wavelength (λ) of an electromagnetic wave is ?

λ = c / f

where c is the speed of light (3 x 10^8 meters per second) and f is the frequency in hertz.

So, for an FM radio frequency of 88 MHz, the wavelength can be calculated as follows:

λ = c / f = 3 x 10^8 / 88 x 10^6 = 0.0341 meters = 34.1 cm

And for a frequency of 108 MHz:

λ = c / f = 3 x 10^8 / 108 x 10^6 = 0.0278 meters = 27.8 cm

These are the approximate wavelengths for FM radio frequencies in the range of 88 MHz to 108 MHz.

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Answer:

26.58 atm

Explanation:

By the ideal gas law, we have that:

Where P is the pressure, V is the volume, n is the number of moles, R is a constant equal to 0.08206 L atm/ mol K, and T is the temperature.

If we have 32 grams of water vapor, the number of moles will be equal to:

Because 18.01 gr is the molar mass of the vapor water.

On the other hand, the standard temperature is 273 K. So, replacing the values for each constant, we get:

So, dividing both sides by 1.5 L:

Therefore, the pressure is 26.58 atm.

Answer:

time is 3 seconds.

Explanation:

formula is given in the picture

Answer:

Motion is a powerful  experience

Motion brings out the best in people

Motion can flow like oceans

Explanation:

The frequency of the dripping is 1.33 Hz.

The number of full oscillations that any wave element performs in one unit of time is how we determine the frequency of a sinusoidal wave.

The frequency of the dripping can be calculated using the formula:

frequency = number of cycles ÷ time

In this case, each drip is a cycle, and we know that there are 40 drips in 30.0 s, so:

frequency = 40 ÷ 30.0 s = 1.33 Hz

Therefore, the frequency of the dripping is 1.33 Hz.

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I believe Kalpana gave the correct explanation.

The reason is that density is a property of a material that remains the same regardless of the size of the sample. Density is defined as mass divided by volume (density = mass/volume), and it is a characteristic property of a particular type of rock.

Bigger stones will indeed be heavier, but their volume will also increase proportionally, maintaining the same density value. So, the density will be the same for any size of the stone, as long as the type of rock is the same.

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complete question not found in search engine.

Answer:

2s

Explanation:

Given parameters:

Distance  = 30m

Speed  = 15m/s

Unknown:

Time before Laurence caught it = ?

Solution:

To solve this problem;

    Speed  = \(\frac{disance }{time}\)  

 Time taken  = \(\frac{distance }{speed }\)   = \(\frac{30}{15}\)  = 2s

The time it takes is 2s

Given:

We will solve:

Speed  = \(\frac{distance}{time}\)

Time taken  = \(\frac{distance}{time}\) = \(\frac{30m}{15m/s}\) = 2s

The time it takes is 2s

The minimum non-zero distance from the first speaker we can place a second speaker playing the same tone for maximally constructive interference can be determined by considering the conditions for constructive interference between two waves.

The wavelength of a wave can be calculated using the formula:

\(Wavelength = Speed of sound / Frequency\).

In this case, the frequency is 680 Hz and the speed of sound is 340 m/s:

\(Wavelength = 340 m/s / 680 Hz = 0.5 m\).

For maximally constructive interference, the path difference between the two speakers should be an integer multiple of the wavelength. Since we want the minimum non-zero distance, the path difference should be equal to one wavelength.

Therefore, the minimum non-zero distance from the first speaker to place a second speaker for maximally constructive interference is equal to one wavelength, which is 0.5 m.

Thus, the correct answer is e) 0.5 m.

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The correct answer is e. None of the above alternatives gives a true statement. None of the statements in options a, b, c, and d are true when it comes to a modulus M over a ring R having a finite basis.

When a modulus M can be formed entirely from a finite set of elements, the modulus M is said to be finitely generated. M's finite basis does not, however, automatically imply that M is finitely generated. A basis is a set of linearly independent elements, and it might not be enough to produce all of the components of the modulus.

According to the assertion in option b, M must include nonzero items of nonzero order if it has a finite basis. This is untrue, though. The smallest positive number k, such that the element raised to the power of k equals the identity element, is referred to as the order of an element.

According to option c, every non-null element in a modulus with a finite basis has a null. Nevertheless, this claim is likewise untrue. It is possible for a modulus with a finite basis to have non-null elements without a null element.

According to option d, a ring R is a body, or a field, and only then can a modulus have a finite basis. However, this assertion is also untrue. Even though the ring R is not a field, a modulus can nonetheless have a finite basis. None of the given alternatives provides a true statement about a modulus M over a ring R having a finite basis.

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Answer:

24° north of east

Explanation:

tan(x)=90/200 ie x=arctan(90/200)=24°

So the plane took off 24° east.

Answer:

24° north of east

Explanation:

Hope this will help

The duty cycle of a square wave with a frequency of 10 Hz and a positive pulse width (i.e., high time) of 0.03 seconds is 30%.

The duty cycle is defined as the percentage of time the waveform spends at the high voltage level. To calculate the duty cycle of a square wave, divide the high time by the total period, then multiply by 100. The duty cycle equation is as follows:Duty cycle (%) = (High time / Period) * 100Where,High time is the time duration when the waveform is at a high level.Period is the time duration between the beginning of two consecutive high levels. Frequency is the inverse of the period.The high time is 0.03 seconds, and the period is 1 / 10 = 0.1 seconds, using the frequency given. As a result, the duty cycle can be calculated:Duty cycle = (0.03 / 0.1) * 100 = 30%Thus, the duty cycle of a square wave with a frequency of 10 Hz and a positive pulse width (i.e., high time) of 0.03 seconds is 30%.

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Answer:

16 m/s.

Explanation:

The following data were obtained from the question:

Mass of truck = 5000 Kg

Velocity of truck = 8 m/s

Mass of car = 2500 kg

Velocity of car =..?

Next, we shall determine the momentum of the truck. This can be obtained as follow:

Mass of truck = 5000 Kg

Velocity of truck = 8 m/s

Momentum of truck =.?

Momentum = mass × velocity

Momentum = 5000 × 8

Momentum of the truck = 40000 Kg.m/s

Finally, we shall determine the velocity of the car as follow:

From the question given above, we were told that the car and truck has the same momentum.

This implies that:

Momentum of the truck = momentum of car = 40000 Kg.m/s

Thus, the velocity of the car can be obtained as shown below:

Mass of car = 2500 kg

Momentum of the car = 40000 Kg.m/s

Velocity of car =..?

Momentum = mass × velocity

40000 = 2500 × velocity

Divide both side by 2500

Velocity = 40000/2500

Velocity = 16 m/s

Therefore, the velocity of the car is 16 m/s.

Positive acceleration speeds the object up. Negative acceleration, aka deceleration, slows the object down. Zero acceleration means the object either keeps the same speed or isn't moving at all (we can say the speed is 0).

When an object speeds up, the positive acceleration occurs.

The acceleration is the time rate of change of velocity.

a = dv /dt

If the velocity is increased, the acceleration also increases, time remains same to cover a fixed distance.
Speeding up the object means positive acceleration.  Negative acceleration also called deceleration slows the speed. Zero acceleration represents that the object is moving with constant velocity.

Thus, the positive acceleration occurs.

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The voltage across one of the lamps will be 220V. This is because when components are connected in parallel, the voltage across each component is the same as the voltage across the source.

Voltage is a measure of the potential difference in electrical energy between two points. It is measured in volts and is the electrical force that causes current to flow in an electrical circuit. Voltage is the energy per unit charge that causes a current to flow through a conductor. It can be compared to the pressure of water in a pipe, where the greater the pressure, the more water that can be pushed through the pipe. Voltage is the primary factor in determining the amount of electrical current that can be produced in an electrical circuit. Voltage is also related to the amount of power that can be produced in an electrical circuit. Voltage can be generated by a variety of sources, such as batteries, generators, and rectifiers.

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If an electron is passing through a field but no force is acting on it, it must be moving in a direction perpendicular to the direction of the field.

In the case of an electric field, the electron must be moving perpendicular to the field lines. This is because the force experienced by a charged particle in an electric field is proportional to the strength of the field and the charge of the particle, and acts in the direction of the field lines. If the electron is moving perpendicular to the field lines, there will be no force acting on it.

In the case of a magnetic field, the electron must be moving parallel to the field lines. This is because the force experienced by a charged particle in a magnetic field is proportional to the strength of the field, the charge of the particle, and the velocity of the particle, and acts perpendicular to both the field lines and the velocity of the particle. If the electron is moving parallel to the field lines, there will be no force acting on it.

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The full question is:
An electron is passing through a field but no force is acting on it. Under what conditions is it possible, if the motion of the electron be in the (i) electric field (ii) magnetic field?

Method of section is a significant method of determining forces in members of a structure.

The basic concept of the method of section is to find out the forces acting on the sections by separating them from the rest of the structure.

In this problem, the moment at point b has to be determined using the method of section.

The given weight of the beam is

w = 40.3 lb/ft.

Let's draw the free-body diagram for the given beam:

Free-Body Diagram:

As we can see from the above diagram, the section has been drawn which passes through point b.

We have to determine the moment at point b using this section.

Now, we will write the equation for the moment of the section passing through point b as:

- 12(6) - 4(8) - (20)(12) - (32)(20) - (40.3)(12/2) = 0Mb = 1126.05 lb-ft

the moment at point b is 1126.05 lb-ft.

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For people who don't speak Spanish.

translation:  

Identify the type of variable for each given situation (qualitative: nominal or ordinal) or (quantitative: continuous or discrete)

sorry though I cant answer your question.

On Waxing Gibbous, more than half of the moon will be illuminated. And this phase is called waxing gibbous.

As mentioned above the phase of the moon depends upon the relative orientation of the sun, moon, and earth.

Accordingly the portion of the moon which will be bright (illuminated )and dark will change. So in the above diagram, we can see the portion of the moon will be illuminated and the portion that is facing away from sun I marked black.

The half we can see from the surface of the earth in this orientation is also, marked by the white line.

Now, we can draw the phase of the moon, accordingly. (see image)

On Waxing Gibbous, more than half of the moon will be illuminated. And this phase is called as waxing gibbous.

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Answer:

TOWARD the North pole.

Explanation:

Thermal energy is the energy associated with the movement of particles within a substance. The mechanisms by which thermal energy is generated in a solid are varied and include electric resistance heating, the release of thermal energy stored in the solid, endothermic chemical reactions, and exothermic chemical reactions.

However, one mechanism by which thermal energy is not generated in a solid is the absorption of neutrons.
Absorption of neutrons can lead to the formation of new isotopes, but it does not directly generate thermal energy. This is because neutrons do not carry an electric charge, and therefore cannot directly interact with the electrons in a solid to generate heat. Instead, the energy associated with the absorbed neutron is typically released through subsequent nuclear reactions, which can generate thermal energy indirectly.
In summary, while electric resistance heating, the release of thermal energy stored in the solid, endothermic chemical reactions, and exothermic chemical reactions are all mechanisms by which thermal energy can be generated in a solid, absorption of neutrons is not.

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Answer:

T = 40.08 °C

Explanation:

Given:

m₁ = 0.33 kg, mass of iron horseshoe

T₁ = 693°C, initial temperature of horseshoe

c₁ = 448 J/(g-°C), specific heat

m₂ = 24 kg, mass of water

T₂ = 39°C, initial temperature of water

c₂ = 4186 J/(g-°C), specific heat of water

let T be the equilibrium temperature.

For energy balance,

m₁c₁(T₁ - T) = m₂c₂(T - T₂)

(0.330) * (448) * (693 - T) = (24) * (4186) * (T - 39)

147.84 * (693 - T) = 100,464 * (T - 39)

102,453.12 - 147.84T = 100,464T - 3,918,096

102,453.12 + 3,918,096 = 100,464T - 147.84T

4020549.12 = 100316.16T

T = 40.08 °C

0.5Ω

Since different currents are passing through the resistors, then the resistors are most probably connected in parallel. This also means that the same voltage will pass across them.

Using Ohm's law, the voltage across a resistor in a circuit is given by;

V = I(R + r)            -----------(i)

For the 1ohm resistor, the voltage across it is given by;

Where;

I = current passing through the 1 ohm resistor = 0.6A

R = resistance of the 1 ohm resistor = 1Ω

r = internal resistance of the cell = r

Substitute these values into equation (i) as follows;

V = 0.6(1 + r)                 -------------------(ii)

For the 4.0ohm resistor, the voltage across it is given by;

Where;

I = current passing through the 4.0 ohms resistor = 0.2A

R = resistance of the 4.0 ohms resistor = 4.0Ω

r = internal resistance of the cell = r

Substitute these values into equation (i) as follows;

V = 0.2(4.0 + r)                 -------------------(iii)

Now solve equations (ii) and (iii) simultaneously;

V = 0.6(1 + r)

V = 0.2(4.0 + r)

Substitute the value of V in equation (ii) into equation (iii). Therefore, we have;

0.6(1 + r) = 0.2(4.0 + r)

Solve for r

0.6 + 0.6r = 0.8 + 0.2r

0.6r - 0.2r = 0.8 - 0.6

0.4r = 0.2

r = \(\frac{0.2}{0.4}\)

r = 0.5

Therefore, the internal resistance of the cell is 0.5Ω

Answer: Inertia

Explanation: It's known as the law of inertia, and the entire law has to do with inertia.

Answer: inertia.

Explanation: sometimes referred to as the law of inertia.

Answer:

blue

Explanation:

blue is the only color being reflected, meaning it's the only one that will be visible

The momentum of the system is always constant. Therefore, the example that best fits the criteria is "A freely falling metal ball, with the ball and Earth as the system." So, C is the correct option.

When considering the examples given, we can eliminate options (a) and (d) as they suggest that the momentum of the system is always constant.

The momentum of a system is the product of the mass and velocity of an object. When the metal ball is falling freely, the momentum of the ball and the Earth system changes continuously as the velocity of the ball changes due to the force of gravity. Therefore, the momentum of the system is not constant in this case.

So, the correct option is C.

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Answer:

y = (-1/3)x + 5

Explanation:

the gradient of required equation (m2)

the gradient of given equation (m1) = 3

m1*m2 = -1 ( they are perpendicular)

3*m2 = -1

m2 = -1/3

required equation

y = m2 + c

( 9,2) satisfy the above equation

2 = (-1/3)*9 + c

c = 5

y = (-1/3)x + 5

Answer:

1. 7.105 kg    2. 69.629 N    3. 7.105 kg    4. 11.368 N

Explanation:

Firstly the main point is that " mass " is independentnof the the place wheather it is no earth or moon or some else place.

So mass is

   W = mg

    27 = m 3.8

     m =7.105 kg

1. Mass on Earth :

     m = 7.105 kg

2. Weight on Earth:

    W=mg

    W=7.105 × 9.8

   W = 69.629 N

3.Mass on Moon:

   m = 7.105 kg

4. Weight on Moon:

    W =mg

    W =7.015 ×1.6

    W= 11.368 N