Which particle is used as a beam to treat cancer? electron neutron proton

\(w = F * S\)

\(F = 20\\S = 10\\F * S = 20 * 10 = 200\) Joules <- 1st answer

\(w = F * S\)

\(1234 = F * 100\)

\(F = \frac{1234}{100}\)

\(F = 12.34 N\)  <- 2nd answer

The presence of heavy elements in stars correlates with their positions because these elements show which star formed first, and a star's brightness and spectral type show where it is in the galaxy.

Heavy elements are present in population I stars. It is concentrated in the discs of spiral galaxies and typically contains the sun. It is also hot, youthful, and brilliant. The majority of them are found in spiral arms. In globular clusters and the outer galactic halo, where the concentration of heavy elements is relatively low, population II stars are born. The important information to compare the locations of the stars is therefore their abundances of heavy metals. Energy must be added in order for elements heavier than iron and nickel to develop.

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Answer:

When r1 – r2 equal the wavelength of the monochromatic light

Explanation:

This is because to observe a bright fringe a constructive interference pattern of path difference, r1 – r2 = mλ is observed, where m is an integer and λ = wavelength of monochromatic light.

For bright fringes and thus constructive interference, r1 – r2 must be integral multiples of the wavelength, λ. When r1 – r2 , we have the central bright fringe and thus m = 0.

The first order bright fringe which is adjacent to the central bright fringe is obtained when m = 1,

So r1 – r2 = 1 × λ

r1 – r2 = λ

Thus, the path difference required to produce the first order bright fringe that is adjacent to the central bright fringe is when r1 – r2 = λ, the wavelength of the monochromatic light.

The relationship between the pressure, volume and temperature of a gas at constant temperature is given by the Ideal Gas Law: PV = nRT, where P is the pressure, V is the volume, T is the temperature, n is the number of moles of the gas and R is the ideal gas constant.

Given that the temperature is constant, we can assume that the number of moles of argon (n) is also constant. Therefore, we can use the following formula:

V1/P1 = V2/P2

Where V1 and P1 are the initial volume and pressure, and V2 and P2 are the new volume and pressure.

Substituting the given values into this formula:

V1/4.00 atm = V2/8.00 atm

V2 = (V1 * P2) / P1

V2 = (500 L * 8 atm) / 4.00 atm = 1000 L

So the new volume of argon gas will be 1000 L when the pressure is changed to 8 atm, assuming that the temperature is kept constant.

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The main driving force thought to be behind the slowing of the Gulf Stream is believed to be climate change. As the atmosphere and oceans warm, the Gulf Stream is losing heat to the atmosphere.

The Gulf Stream is a powerful ocean current that originates in the Gulf of Mexico and flows northward along the eastern coast of the United States. It is part of the North Atlantic gyre, a system of circulating ocean currents. The Gulf Stream is an important part of the global conveyor belt, a system that helps regulate the ocean's climate by transporting warm tropical waters to cooler regions of the world. The Gulf Stream is so powerful that it is able to move more water than all of the world's rivers combined. It transports more than 100 million cubic meters of water per second and has a maximum speed of up to 5.6 km per hour.

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Answer:

Rust occurs when iron or its alloys, such as steel, corrode. The surface of a piece of iron will corrode first in the presence of oxygen and water.The process of rusting is a combustion reaction, similar to fire. Left in contact with oxygen, iron will react with the oxygen to form rust.

Hope this helps!!

Answer:

iron is oxidation reaction

Explanation:

it occurs when iron reacts with water and oxygen to form hydrated iron(iii) oxide

Answer:

Ans :- 3.1415

The value of ππ correct to 55 significant figures is 3.1415

Answer:

True

Explanation:

mass, length, time, electric current, temperature, luminous intensity and amount of substance

Answer:ture

Explanation:

Orbital velocity of satellite

\(v = \sqrt{ \frac{gm}{r} } \)

Radius of new orbit r' =6r

Thus new orbital velocity of satellite:

\(v = \sqrt{ \frac{gm}{6r} } = \frac{v}{ \sqrt{6} } \)

For satellites in circular orbits, the relationship between orbital velocity and altitude is strict. The task of a satellite launch rocket is to release the satellite at a suitable place in space, with the appropriate speed and direction of movement to put it in the desired orbit.

How a satellite stays in orbit can be thought of in two equivalent ways, both of which explain the relationship between the satellite's altitude and velocity.

The motion of the satellite can be seen as creating a centrifugal force that opposes the gravitational pull. For example, imagine attaching an object to a string and swinging it in a circle. The object is pulling outward against the string, and that outward force (centrifugal force) becomes greater the faster the object swings. At the right speed, the centrifugal force of the satellite due to motion around the earth just balances the gravitational pull, and the satellite remains in orbit.

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Answer:

ture

Explanation:

It is true that the climate of a town on the coast will have less dramatic changes than a town further inland.

The coast, also known as the coastline or seashore, is the area where land meets the ocean, or a line that forms the boundary between the land and the coastline. The Earth's coastline is approximately 620,000 kilometers long.

It is well-known for its sandy beaches, surfable waves, mild climate, and diverse population.

The coastal plains of several major rivers define the region, which is bounded by the Transverse Mountain Ranges, which include the Santa Monica and Santa Susana Mountains.

A town on the coast's climate will change less dramatically than a town further inland.

Thus, the given statement is true.

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The mean of the ASPD group is likely higher than the mean of the no ASPD group.

ASPD stands for Antisocial Personality Disorder, which is a mental health condition characterized by a persistent pattern of disregarding the rights of others and engaging in illegal or unethical behavior. If a study were conducted to compare the means of the ASPD and no ASPD groups in terms of narcissism scores, it would likely show that the mean of the ASPD group is higher than the mean of the no ASPD group.

Narcissism is a personality trait characterized by a grandiose sense of self-importance, a sense of entitlement, and a lack of empathy for others. People with ASPD are often considered to be narcissistic, so it is likely that the mean narcissism score for the ASPD group would be higher than the mean score for the no ASPD group.

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The potential energy of the block raised up an incline would be less than if it were raised vertically to the same height.

This is because the force required to push the block up the incline is less than the force required to lift the block vertically against gravity. Therefore, less work is done on the block, resulting in less potential energy. The exact amount of potential energy difference depends on the incline angle and the weight of the block. Since the block is being raised along an inclined plane, the actual distance traveled along the incline is longer than the vertical height gained. This is due to the inclined path being longer than the vertical path.

Therefore, when the block is raised along an incline, it requires less force (compared to lifting it vertically) but covers a longer distance. As a result, the potential energy it possesses is the same as when raised vertically to the same vertical height.

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With the use of vertical motion formula, the shirt will take 3 s to reach the top of its arc. And the maximum height reached is 44.7 m

The motion of an object under is the vertical motion of the object under the influence of acceleration due to gravity.

Given that a cheerleader launches a t-shirt from an air gun. The shirt leaves the gun with a speed of 29 m/s.

A. Ignoring air resistance, the time it will take the shirt to reach the top of its arc can be found by using the equation

v = u - gt

Where

Substitute all the parameters into the equation

0 = 29 - 9.8t

9.8t = 29

t = 29/9.8

t = 2.96 s

t = 3 s approximately

B. Ignoring air resistance, if the cheerleader launches with an initial height of 1.75m, let us first calculate the maximum height reached by the shirt by using the formula

v² = u² - 2gH

At maximum height, v = 0

0 = 29² - 2 × 9.8 × H

0 = 841 - 19.6H

19.6H = 841

H = 841/19.6

H = 841/19.6

H = 42.9 m

The maximum height reached = 42.9 + 1.75 = 44.7 m

Therefore, the time taken for the shirt to reach the top of its arc is 3 s  and the maximum height reached is 44.7 m

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The optimal angle at the ball should be struck to keep it in the air for the longest is 90 degrees

Angles of incidence and reflection are equal when waves strike a boundary and are reflected. The angle of incidence is the angle formed by a line drawn perpendicular to the reflecting barrier and the wave's direction of motion.

The angle between a ray incident on a surface and the line perpendicular to the surface at the point of incidence is known as the angle of incidence (called as normal).

The angle of incidence is the angle formed by the incident beam and the normal. The angle of reflection is the angle formed by the reflected beam and the normal. i.e:∠i=∠r.

Longer time will be the outcome of a higher trajectory. Therefore, a 90-degree angle takes longer to complete than other angles.

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Answer:

we conclude that visible light is that electromagnetic wave that makes up the colors of a rainbow seen after a storm.

Hence, option A is correct.

Explanation:

Generally, after the storm, we can witness the presence of a rainbow with our naked eyes. Rainbow, visible to our eyes, consists of all the seven constituent colors of white light. Those seven colors range from violet to red, all having different wavelengths. When water particles present in our atmosphere get exposed to light, all the constituent colors of a white light tend to deviate at a variety of angles. It happens due to their refraction through water particles; thus, a spectrum is obtained.

As we cannot see X-rays, UV rays, and infrared waves through our naked eye, visible light is the kind of electromagnetic wave that makes anyone able to see the objects.  

Please note that all the constitute colors of a beautiful rainbow associate with the visible region of the electromagnetic spectrum.

Therefore, we conclude that visible light is that electromagnetic wave that makes up the colors of a rainbow seen after a storm.

Hence, option A is correct.

Answer: A.) Visible light

Explanation: Edge 2020 good luck friend ^__^

Answer: A

Explanation:

that the change in the momentum of the probe in the time interval from 22.6 seconds after the probe is launched to 22.7 seconds after the launch can be determined by using the formula Δp = FΔt where Δp represents the change in momentum F is the net force the time interval.

In this case, we assume that the net force on the probe is approximately constant during this time interval, so we can use the following formula:Δp = FΔtThe long answer to this question is that the change in momentum of an object can be determined by multiplying the force acting on the object by the time interval during which the force is acting. This is known as the impulse-momentum theorem. Mathematically, it can be expressed as:Δp = FΔtwhere Δp represents the change in momentum, F is the net force, and Δt is the time interval. If the net force acting on an object is constant, then we can use the above formula to determine the change in momentum during a particular time interval. In this case, we are given that the net force on the probe is approximately constant during the time interval from 22.6 seconds after the probe is launched to 22.7 seconds after the launch. we can use the above formula to determine the change in momentum of the probe during this time interval.

Time interval from 22.6 seconds after the probe is launched to 22.7 seconds after the launch We assume that the net force on the probe is approximately constant during this time interval .We know that,Δp = FΔtWhere, Δp = Change in momentumF = Net forceΔt = Time interval Substitute the given values,Δt = 22.7 s - 22.6 sΔt = 0.1  Since we assume that the net force on the probe is approximately constant during this time interval, we can take the force acting on the probe at any point during this interval as the net force acting on the probe. So, the change in the momentum of the probe can be determined by multiplying the force acting on the probe by the time interval during which the force is acting. Mathematically, it can be expressed as:Δp = FΔtTherefore, the change of the momentum of the probe in the time interval from 22.6 seconds after the probe is launched to 22.7 seconds after the launch can be determined using the formula:Δp = FΔt.

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If an organism were 5 μm long, its length in millimeters would be 0.005mm. The correct answer is C

When comparing two items, width is used to measure the width between the sides of the objects, whereas length measures the total length between the ends of the objects. An object's height is measured from top to bottom.

One can measure length in a variety of quantities, such as centimeters, inches, meters, and so on, in addition to using handspan, foot span, and other techniques. The various length measurement units can be categorized into two groups: non-standard units and standard units.

1μm = 0.001 mm

5 μm = 5 × 0.001 mm = 0.005 mm

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Correct question -

A microorganism measures 5 μm in length. Its length in mm would be

A) 500 mm. B) 50 mm. C) 0.5 mm. D) 0.05 mm. E) 0.005 mm.

Answer:

5N NORTH

Explanation:right on edge

Frequency is measured in hertz (Hz) (frequency = cycles/seconds). Simply divide 1 by the frequency that is equal to the time interval.

Time interval=1/ frequency

What is frequency?

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This statement is true. If the rock contained 6 grams of radium-226 at the closure temperature and 0.375 grams at the time of discovery, the remaining mass difference (6 - 0.375 = 5.625 grams) is attributed to the decay of radium-226 into radon-222. Therefore, the rock had 3.375 grams of radon-222 when it was discovered. Based on the given information, statement 5 is the only true statement.

To determine the statements that are true, let's consider the information provided.

The rock reached its closure temperature 6,400 years ago.

This statement is not true. The closure temperature is the temperature at which a mineral retains its daughter isotopes without any further loss or gain. However, the closure temperature is not directly related to the half-life of the parent isotope.

The rock reached its closure temperature 4,800 years ago.

This statement is not true. Similar to the previous statement, the closure temperature is not determined solely based on the half-life of the parent isotope.

The rock had 2.625 grams of radon-222 1,600 years ago.

This statement is not true. The amount of radon-222 present 1,600 years ago cannot be determined directly from the information provided.

When the rock was discovered, it had 5.625 grams of radon-222.

This statement is not true. The amount of radon-222 when the rock was discovered is given as 0.375 grams, not 5.625 grams.

When the rock was discovered, it had 3.375 grams of radon-222.

This statement is true. If the rock contained 6 grams of radium-226 at the closure temperature and 0.375 grams at the time of discovery, the remaining mass difference (6 - 0.375 = 5.625 grams) is attributed to the decay of radium-226 into radon-222. Therefore, the rock had 3.375 grams of radon-222 when it was discovered.

Based on the given information, statement 5 is the only true statement.

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Answer:

The answer is D. Balanced forces

Hope it helps.......... pls mark as brainliest

Given data

*The weight of the box is W = 500 N

*The distance of the plank from the fulcrum is d = 5 m

*The given force at a distance from the fulcrum is D = 10 m

The minimum force is required to lift the box is given by the net torque as

Substitute the known values in the above expression as

Hence, the minimum force is required to lift the box is F = 250 N

Mineralogically, barite is a sulfate, bornite is a sulfide, cuprite is an oxide, magnesite is a carbonate.

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Among the mineral groups, barite is a sulfide mineral, bornite is a sulfide mineral, cuprite is an oxide mineral, and magnesite is a carbonate mineral.

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Answer:

you need to include the units for both axis to be able to answer this

Explanation:

average speed in uniform motion is the slope anywhere on the line but you could always pick 2 points and do it that way and speed is just rise over run

or y2-y1/x2-x1

Pick two points on the line and determine their coordinates.

Determine the difference in y-coordinates of these two points (rise).

Determine the difference in x-coordinates for these two points (run).

Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

the second bit i think they are looking for this calculation y = mx + b, where m is the slope and b is the y-intercept (where the line crosses the y axis (the vertical one that has no units

Then use that formula for the last question and put in the x value of 10 and complete the formula to find out what y is

a) Average speed v1 = h/t

b) Average speed v2 = (h - h_c)/t

c) v = (h - h_c)/(2t) = (1000 - 200)/(2 * 40) = 400/80 = 5 m/s.

a) The skydiver's average speed, v1, before opening the chute can be expressed as v1 = h/t, where h is the initial height of the skydiver and t is the time taken for the skydiver to reach the chute opening height.

b) The skydiver's average speed, v2, after opening the chute can be expressed as v2 = (h - h_c)/t, where h_c is the height at which the chute is opened.

c) The skydiver's average speed, v_a, during the entire fall can be expressed as v_a = (h - h_c)/(2t),

where h_c is the height at which the chute is opened and t is the total time taken for the skydiver to reach the ground.

d) Calculating the skydiver's average speed during the entire fall, v, in meters per second, we get v = (h - h_c)/(2t) = (1000 - 200)/(2 * 40) = 400/80 = 5 m/s.

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The freezing Point of water is a physical property

The ability of oxygen to react with iron to cause rust is chemical property

Explanation: