Electron and positron each with kinetic energy 220kev are generated by photon, what is the energy and wavelength

Answer:

100 m/s

Explanation:

Speed increases at a rate of 10 m/s (actually 9.8 m/s) every second. Thus after 10 seconds, the speed is 10 x 10 = 100 m/s.

Answer: the electromagnetic spectrum

Explanation:

The full range of frequencies of electromagnetic radiation is called the electromagnetic spectrum. From longest to shortest wavelengths, it includes radio waves, microwaves, infrared light, visible light, ultraviolet light, X rays, and gamma rays.

Hope I have helped, and have a good day!!!

One effect of the events resulting from the response to this letter is the spread of Christianity throughout the Americas (option 4). The discovery of the Americas by European explorers and subsequent colonization led to the introduction of Christianity to the indigenous populations. European colonizers, particularly Spanish and Portuguese, undertook missionary efforts to convert the indigenous peoples to Christianity. This resulted in the establishment of Christian institutions, the construction of churches, and the integration of Christian beliefs and practices into the cultures of the native populations. The spread of Christianity throughout the Americas had a lasting impact on the religious, cultural, and social landscape of the region. It influenced the beliefs, customs, and traditions of the indigenous peoples and played a significant role in shaping the history of the Americas.

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The ASC PPS conversion factor is different from the OPPS conversion factor because of the following reason:

The OPPS conversion factor is applied to each APC to determine payment rates for outpatient services. Furthermore, Palliative care is specialized medical care that aims to improve the quality of life for individuals with serious illnesses. It is focused on relieving symptoms and stress associated with serious illnesses. The goal of palliative care is to help patients feel more comfortable and enhance their quality of life. Palliative care is not the same as hospice care because it is given to patients at any stage of an illness, and it may be provided alongside curative treatments.

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It is not possible to guess if the electroscope is charged or neutral just by looking at it.

An electroscope is a tool used to find electrical charges on objects. At the top is a conducting sphere, and there are metal leaves and a rod inside. This is enclosed in a glass jar. The electroscope's top is approached by an electrically charged object. As a result, electrons move to or away from the charged item.

The leaves reject one another and move apart if the electroscope contains charge. As a result, both leaves and the metallic sphere are electrically charged. The leaves open up and repel one another when they have the same charge. No change occurs in neutral state.

As the leaves have similar charges and repel one another whether it is positive or negative charge, we cannot tell from an electroscope alone what kind of charge it has. Thus, we cannot differentiate the charge of electroscope.

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The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.

Velocity is the rate of change of displacement over time.

As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.

So option A is correct.

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Long-term exercisers often report that intrinsic exercise rewards are their primary motivation.

They are often report that the long-term health benefits and feeling of well-being are their primary motivation for continuing to exercise. While short-term rewards such as weight loss and increased energy are also motivating factors, it is the sustained benefits that keep dedicated exercisers committed to their fitness routine.

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Answer:

A

Explanation:

I guess but not sure cause wind is soemthing you can get back electricity is soemthing you can't

The woman will be moving at a speed of 5.2 m/s after the push.

Speed is the rate at which an object or person moves from one place to another. It is measured in distance over time, such as meters per second, miles per hour, or kilometers per hour. Speed is a scalar quantity, meaning it has magnitude but no direction.

The man and woman are moving with the same speed before the push, so they must be moving with the same speed after the push. This is because momentum must be conserved. Momentum is equal to the mass times the velocity, so the momentum of the two-stater system before the push is equal to the momentum of the system after the push. We can calculate the momentum before the push by multiplying the total mass (85kg + 66kg = 151 kg) and the velocity (2.3 m/s), and find it to be 344.3 kg*m/s. We can then calculate the velocity of the woman after the push by dividing the momentum by the mass, and find it to be 344.3/66 = 5.2 m/s. Therefore, the woman will be moving at a speed of 5.2 m/s after the push.

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Answer:

increasing; speeding up is my answer

Your average velocity was zero, thus choice (b) will be accurate.

Let x be the separation between my home and my friend's home. I leave my home and travel to my friend's home, where I spend some time. I then return home after that. My initial position and final position are identical, hence there is no displacement.

However, the following determines how far my car travels: d = 2x.

Let t represent the whole amount of time it takes me to travel from home to home. My instantaneous velocity will be zero at my friend's place because I spent some time there. The average velocity will be given by: Because the total displacement is zero, the average velocity will be:

\(V_{avg} = \frac{8}{t}=0\)

The acceleration changed as I traveled and stayed at a friend's house; it was never continuous. My average speed as I covered a distance of d=2x is shown by: \(v^{'}_{avg} = \frac{d}{t} = \frac{2x}{t}\)

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After considering all the given data we arrive at the conclusion that the charge flowing through the lawnmower is 18 C, under the given condition that a 12v battery is used to re charge an electric lawnmower  and a charge of 216 J is  transferred.

Now in order to evaluate the charge flowing we have to apply the formula

Q = E / V

Here,

Q =  charge flowing through the lawnmower,

E= energy transferred (216 J),

V = potential difference across the battery (12 V).

Staging the given values

Q = 216 J / 12 V

Applying simplification to the given  expression we get

Q = 18 C

Then, the charge flowing through the lawnmower when 216 J are transferred is 18 C

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The emf induced in the loop of wood, compared to if it were made of copper, will be significantly smaller due to the much higher resistivity of wood.

The emf induced in a loop of wire is given by Faraday's law of electromagnetic induction, which states that the emf (ε) is equal to the rate of change of magnetic flux through the loop. Mathematically, ε = -dΦ/dt, where dΦ represents the change in magnetic flux and dt represents the change in time.

In this scenario, the loop of wood is placed next to a long, straight wire carrying an increasing current. The changing current in the wire produces a changing magnetic field around it. This changing magnetic field will induce an emf in the loop of wood.

However, the resistivity of wood is about 10²⁰ times greater than that of copper. Resistivity is a measure of a material's ability to resist the flow of electric current. Higher resistivity means higher opposition to current flow. Therefore, the loop of wood will experience a much larger resistance compared to a loop made of copper.

According to Ohm's law, V = IR, where V is the voltage, I is the current, and R is the resistance. Since the resistance of the wood loop is much higher, the induced emf in the loop will be significantly smaller.

In conclusion, due to the much higher resistivity of wood compared to copper, the emf induced in the loop of wood will be much smaller than if the loop were made of copper.

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Answer:

If the water in the left side drops .2 m then the water on the right side rises by .2 m

The pressure on the gas is due to the height difference of the water on the two sides.

P = ρ g h

ρ g = 9.8 m/s^2 * 1000 kg / m^3 = 9800 N/m^3      weight density of water

P = 9800 N/m^3 * .4 m = 3920 N / m^2 = 3.92E3 N/m^2

Absolute pressure of gas = 3.92E3 / 1.01E5 = .0388 atmosphere

I think its "a dropped penny sinks at the bottom of a pond". Because, non-contact force is a force that you don't touch, like gravity or weight, that falls but you didn't drop it on purpose nature did or gravity itself did.

Answer:

A packing crate of weight 50N is placed on a plane inclined at 35°from the horizontal. If the coefficient of static friction between the crate and the plane is 0.65, will the crate slide down the plane? asked by Siyam February 26, 2022 1 answer normal force = m g cos 35 = 50 cos 35 = 41 Newtons so max friction force up slope = 0.65 * 41 = 26.6 N

Explanation:

1.) Its angular speed is 6.28 rad/s.

2.) The speed of the tip of the hand 9.42 cm every second.

The angular speed of the second hand on a watch is calculated as the ratio of the circumference of the circle the hand follows to the total time taken to complete one rotation, typically measured in radians per second. The radius of the circle the second hand moves on is 1.5 cm. So, the circumference of the circle is 2π ×1.5 cm, which gives us 9.42 cm. Thus, the angular speed of the second hand is 6.28 rad/s.

The speed of the tip of the second hand can be calculated as the product of the radius of the circle it moves on and its angular speed. Thus, the speed of the tip of the second hand is equal to 9.42 cm/6.28s or 1.51 cm/s.

To express the answer in Angular Velocity, we would say the tip of the second hand has a rotational speed of 1.51 cm/s at an angular velocity of 6.28 rad/s. This means that the tip of the second hand spins around six times each second and covers a distance of 9.42 cm every second.

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Answer:

Vx = 80.0 / 5 = 16 m/s         horizontal speed

2.5 sec up, 2.5 sec down     speed of particle in vertical direction after falling for 2.5 sec

Vy = 2.5 * 9.8 = 24.5 m/s   vertical speed of particle

V = (Vx^2 + Vy^2)^1/2 = (16^2 + 24.5^2)^1/2 = 29.3 m/s

The initial speed of the projectile is 20.0 m/s

To solve for the initial speed of the projectile, we can use the fact that the projectile returns to its original height after 5.0 s of flight. This means that the time it takes for the projectile to reach its maximum height is 2.5 s (half of the total flight time).

Using the kinematic equation for vertical motion, we can find the initial vertical velocity of the projectile at launch:

Δy = v₀t + 0.5at²

where Δy = 0 (since the projectile returns to its original height), t = 2.5 s, a = -9.81 m/s² (acceleration due to gravity), and v₀ is the initial vertical velocity.

Solving for v₀, we get:

v₀ = -0.5at² / t

v₀ = -0.5(-9.81 m/s²)(2.5 s) = 12.26 m/s

Now that we know the initial vertical velocity, we can use the horizontal distance traveled (80.0 m) and the total flight time (5.0 s) to find the initial horizontal velocity:

v = d / t

v = 80.0 m / 5.0 s = 16.0 m/s

Therefore, the initial speed of the projectile is:

v₀i = √(v₀² + v²) = √(12.26² + 16.0²) ≈ 20.0 m/s

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Gyroscope is a wheel or a disc in which the axis of rotation can assume any orientation by itself. The rotation of gyroscope is obbserved about the x, y and z-axis. This rotation of gyroscope helps to measure the angular velocity.

The motion of the gyroscope is not rapid about the two or more axes.

Thus, the given statement is false.

Answer:

DMs are not accessible anymore. I assume Zuka is a staff member? the only way to talk to a staff member anymore is to report something, but even then, the probably won't even look at what they're deleting :/

May I have brainliest please? :)

The altitude gained by the rocket is 588km

If an object's velocity changes, it is said to have been accelerated. An object's velocity can alter depending on whether it moves faster or slower or in a different direction.

Since acceleration has both a magnitude and a direction, it is a vector quantity. Additionally, it is the first derivative of velocity with respect to time or the second derivative of position with respect to time.

We know that the second equation of motion is

h = ut + 1/2 at²

Initial speed, u = 2.50km/s

acceleration, a = 40m/s² = 0.04km/s²   [1m = 0.001km]

time, t = 120s

Altitude gain during this time, h

h = ut + 1/2 at²

h = 2.50 * 120 + 1/2 * 0.04 * 120²

h = 588km

Hence, the altitude gained by the rocket is 588km

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Answer:

mountains, earthquakes, tsunamis

Explanation:

The probability: Probability = Number of favorable outcomes / Total number of possible outcomes = 28 / 100 = 0.28 (or 28%)..The probability that a random integer between 1 and 100 is a multiple of 5 or a perfect square is 0.28 or 28%.

To calculate the probability that a randomly chosen integer between 1 and 100 (inclusive) is either a multiple of 5 or a perfect square, we need to determine the number of favorable outcomes and the total number of possible outcomes.

First, let's find the number of multiples of 5 between 1 and 100. We can divide 100 by 5 to get the number of multiples:

Number of multiples of 5 = floor(100/5) = 20

Next, let's find the number of perfect squares between 1 and 100. The perfect squares in this range are 1, 4, 9, 16, 25, 36, 49, 64, 81, and 100. So, there are 10 perfect squares.

However, we need to be careful because some of the numbers are counted in both categories (multiples of 5 and perfect squares). We need to account for this overlap.

The numbers that are both multiples of 5 and perfect squares are 25 and 100. So, we subtract 2 from the total count of perfect squares to avoid double-counting.

Adjusted count of perfect squares = 10 - 2 = 8

Now, let's find the total number of possible outcomes, which is the number of integers between 1 and 100, inclusive:

Total number of integers = 100 - 1 + 1 = 100

Therefore, the probability of randomly choosing an integer between 1 and 100 that is either a multiple of 5 or a perfect square is:

Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

= (20 + 8) / 100

= 28 / 100

= 0.28

So, the probability is 0.28, which can also be expressed as 28%.

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Answer:

The answer would be 10.8 billion light years

Answer:

10.8 billion light years is most likely the distance between the Milky Way and another galaxy.

Hope this helps :)

The correct statement regarding the work and impulse required to move a box on the floor from 2v to 3v and from 3v to 4v is Case i requires less work, but i and ii require the same amount of impulse.

W = ΔKE

W = Work done

ΔKE = Change in Kinetic energy

ΔKE = 1 / 2 m ( v2 - v1 )²

J = m Δv

J = Impulse

m = Mass

Δv = Change in velocity

For ( i ),

W = 1 / 2 m ( ( 3 v )² - ( 2 v )² )

W = 1 / 2 m ( 9 v² - 4 v² )

W = 2.5 m v²

J = m ( 3 v - 2 v )

J = m v

For ( ii ),

W = 1 / 2 m ( ( 4 v )² - ( 3 v )² )

W = 1 / 2 m ( 16 v² - 9 v² )

W = 3.5 m v²

J = m ( 4 v - 3 v )

J = m v

Therefore,

i ) W1 < W2

ii ) J1 = J2

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Net force = 4 N

Direction is right

Answer: 4N right

Explanation:

The aperture of a telescope is a measure of its ability to increase brightness.

Aperture refers to the diameter of the objective lens or mirror of a telescope. The larger the aperture, the more light the telescope can gather, and the brighter the image will appear. The ability of a telescope to increase brightness is crucial for observing faint celestial objects, such as galaxies and nebulae. However, a larger aperture also means a larger and more expensive telescope, so it is important to balance the desired level of brightness with practical considerations such as portability and cost when selecting a telescope.

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The specific heat of copper is 0.385J/(g°C) and the heat that has been added to the copper block is 13044.724J/(g°C)

To calculate the amount of heat added to the copper block, we can use the formula:

Q = mcΔT

Where:

Q is the heat added (in joules),

m is the mass of the copper block (in grams),

c is the specific heat of copper (in J/g°C), and

ΔT is the change in temperature (in °C).

Given:

Mass of the copper block, m = 103.3 g

Initial temperature, T_initial = -77°C

Final temperature, T_final = 251°C

Specific heat of copper, c = 0.385J/(g°C)

Q = 103.3×0.385×(251+77)

Q = 13044.724J/(g°C)

The amount of the heat added to the copper block is 13044.724J/(g°C)

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