chapter 23 problem 32 two charged particles are located on the x axis

Horizontal component = 75 · cosine(65°)  =  31.7 N  

Vertical component = 75 · sine(65°)  =  68.0 N

Answer:

232 N

Explanation:

By Hooke's law, the force applied to a spring is proportional to the stretch of the spring, so

F = kx

Where F is the force, k is the spring constant and x is how much it is stretched.

So, replacing k by 58N/cm and x by 4 cm, we get

F = (58 N/cm)(4 cm)

F = 232 N

Therefore, the force applied is 232 N

1. The atomic mass of the new atom be 243.  Hence, Option (e) is correct.

2. The atomic number of the new atom be 94. Hence, Option (f) is correct.

3. The symbol of the new atom be Pu.  Hence, Option (h) is correct.

4. Alpha decay is demonstrated here. Hence, Option (i) is correct.

A type of radioactive decay known as "alpha decay" occurs when an atomic nucleus emits an alpha particle as it changes or decays into a new atomic nucleus. Here, the newly produced atom will have a four-less atomic mass number and a two-less atomic number. A helium nucleus is another name for the alpha particle that was released. The alpha particles have a positive charge and a sizeable mass.

Ernest Rutherford investigated how radiation is deflected through a magnetic field to distinguish alpha decay from other types of radiation. Given that the particles carry a +2e charge, the alpha decay would deflect a positive charge.

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The distance covered by the cat starting from rest accelerates uniformly at 1.2 m/\(s^2\) For 2.4 seconds after the acceleration is 3.456 meters.

Acceleration describes the speed and direction changes in velocity over time. Acceleration refers to the change in speed or direction of an item or points traveling straight forward. Even though the speed is constant, motion on a circle increases because of the constant change in direction.

Acceleration is a vector quantity since it has both a magnitude and a direction. A vector quantity is also velocity.

Given:

The initial acceleration, a = 1.2 \(m/s^2\),

The time, t = 2.4 seconds,

Calculate the distance by the following formula,

\(s = u * t + 1 / 2 * a * t^2\)

Here s is the distance.

Substitute the values,

s = 0 * 2.4  + 1 / 2 * 1.2 *\(2.4^2\)

s = 3.456 meters

Therefore, the distance covered by the cat starting from rest accelerates uniformly at 1.2 m/\(s^2\) for 2.4 seconds after the acceleration is 3.456 meters.

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A sound wave is produced when a medium begins to vibrate. When an entity vibrates, a pressure wave is formed, which causes sound.

When an object vibrates, a pressure wave is created, which produces sound. The particles in the surrounding medium (air, water, or solid) vibrate as a result of the pressure wave.

The vibrations of the particles move nearby particles, allowing the sound to travel further through the medium.

Hence a sound wave is produced when a medium begins to vibrate.

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Answer:

vibrate

Explanation: slaaauyy

Answer:

both magnesium and strontium have 2 valence electrons

Explanation:

potassium has 8 valence electrons, and nitrogen has 5.

The speed of the object above the moon to become a satellite is 4.95 x 10⁴ m/s.

What is the orbital speed of the satellite?

The orbital speed of the satellite above the moon is calculated by applying the orbital speed equation.

V = √ (GM / r )

where;

The given parameters include;

The orbital speed of the satellite is calculated

V = √ (GM / r )

V = √ (6.67 x 10⁻¹¹ x 7.35 x 10²² / 2000 )

V = 4.95 x 10⁴ m/s

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real and inverted same size

The pressure on the object due to the liquid is 240,000 Pascal.

Given the following data:

We know that acceleration due to gravity is equal to 10 m/s².

To find the pressure on the object due to the liquid, we would use the following formula;

\(Pressure = hpg\)

Where;

Substituting the values into the formula, we have;

\(Pressure = 20\) × \(1200\) × \(10\)

Pressure = 240,000 Pa

In conclusion, the pressure on the object due to the liquid is 240,000 Pascal.

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Answer:

es inglés plis españolejjdkdjdd

Answer: 9 Joules

Explanation:

Kinetic enegry is one half the mass multiplied by the velocity squared

KE = 1/2mv^2

\(KE=1/2(2)(3^2)\\KE=3^2\\KE=9J\)

The kinetic energy of the body is 9J

Kinetic energy is the energy possessed by a body due to its motion.

It is claculated by formula,

K.E = \(\frac{1}{2}mv^{2}\)

Here,

The mass of the body = 2.0kg

speed = 3.0m/s

So kinetic energy K.E = \(\frac{1}{2}mv^{2}\)

K.E = \(\frac{1}{2} (2)3^{2}\) = 9J

So the kinetic energy of the body is 9J

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Answer:

An electrical potential is a difference in electric potential energy.

Explanation:

Electric potential is a location-dependent quantity that expresses the amount of potential energy per unit of charge at a specified location. ... If the electric potential difference between two locations is 3 volts, then one coulomb of charge will gain 3 joules of potential energy when moved between those two locations.

The electric potential, or voltage, is the difference in potential energy per unit charge between two locations in an electric field.

Superposition and interference of waves are inversely related in terms of the frequency and wavelength of traveling waves colliding in uniform media. The given statement is False.

Superposition and interference of waves refer to the phenomenon that occurs when two or more waves collide in a uniform medium.

However, they are not inversely related in terms of frequency and wavelength. Superposition is the principle that states the total displacement of the medium at any point is the sum of the individual wave displacements. Interference, on the other hand, describes the constructive and destructive patterns that result from the superposition of waves.
Both superposition and interference are related to the frequency and wavelength of traveling waves, but they are not inversely related. The frequency and wavelength of individual waves will determine the resulting interference pattern, but the relationship between frequency and wavelength does not determine the superposition or interference directly.
The statement that superposition and interference of waves are inversely related in terms of the frequency and wavelength of traveling waves colliding in uniform media is false. Instead, these phenomena occur when waves collide, and their frequency and wavelength contribute to the resulting interference patterns.

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Answer:

W = 90 J

Explanation:

Data:

Use the formula:

Replace and solve:

The work done was 90 Joules.

Greetings.

Answer:

57.885.8 kg   weight of the container

Explanation:

The volume of the balloon * density of water = buoyant force of balloon

 volume of a sphere = 4/3 pi r^3

                                   = 4/3 pi * (1.5)^3 = 14.14 m^3   <===balloon volume

Now,   find the buoyant force on the container ALONE ....

             5.8 * 2.6 * 2.8  * 1027  = 43 364  kg   <=====  buoyant force

Now add the buoyant force of the balloon to find the weight

             43 364  +   14.14 * 1027 = 57885.8   kg

Answer:

Explanation:

speed of sound in 24 degrees celsius

345.48m/s

hence 345.48m/s x 3s = 1036.44m

Answer:

less force

Explanation:

less force because they is increase in area and not enough energy to balance the whole equation

Answer:

the same

Explanation:

Answer:

A.) 4 revolution

B.) 0.2 revolution

C.) 4 seconds

D.) 2.75 m/s

Explanation:

Given that a merry-go-round a.k.a "the spinny thing" is rotating at 15 RPM, and has a radius of 1.75 m

Solution

1 revolution = 2πr

Where r = 1.75m

A. How many revolutions will it make in 3 minutes?

(2π × 1.75) / 3

10.9955 / 3

3.665 RPM

Number of revolution = 15 / 3.665

Number of revolution = 4 revolution

B. How many revolutions will it make in 10.0 seconds?

First convert 10 seconds to minutes

10/60 = 0.167 minute

(2π × 1.75) / 0.167

10.9955 / 0.167

65.973

Number of revolution = 15 / 65.973

Number of revolution = 0.2 revolution

C. How long does it take for a person to make 1 complete revolution?

15 = 1 / t

Make t the subject of formula

t = 1/15

t = 0.0667 minute

t = 4 seconds

D. What is the velocity in m/s of person standing on its edge?

Velocity in m/ s will be:

Velocity = (15 × 2pi × r) / 60

Velocity = 164.9334 / 60

Velocity = 2.75 m/s

Answer:

yes kinetic energy will be affected it will get increased 16 times.

Explanation:

\(\text{Given that,}\\\\\text{Mass, m = 5 kg}\\\\\text{Velocity, v = 2 m/s}\\\\\\\text{Kinetic energy},~ E_k = \dfrac 12 mv^2 =\dfrac 12 \times 5 \times 2^2 = 10 ~ J\)

Answer:

...?

Explanation:

The Height of the roof is 225 feet .

Calculation :

y = h - gt2/2 = 0;

h = gt2/2;

v(t) = dy/dt = - gt;

t = - v(t)/g;

h = g/2·v2(t)/g2

= v2(t)/(2g)

= 120²ft2/s²/(2·32ft/s²) =

225 ft

In mathematics, height is defined as the vertical distance from top to bottom of an object. Also called "height". The term geometry height refers to the measurement of an object along the coordinate geometry's y-axis.

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The rocket engine that fires against the direction a spacecraft is headed so the spacecraft slows down is called Retro engine.

Spacecraft are the space automobiles that might be capable of flying out of doors of the Earth’s ecosystem in the area. They offer us a method of transportation from the Earth to the area and objects in it. There may be numerous spacecraft that are familiar to most of people e.g. Apollo 11 which took Neil Armstrong and his group to the Moon.

Crewed Spacecraft – Crewed spacecraft are the ones that carry people to the area. There have been several crewed spacecraft to the area consisting of Vostok 1 – the first crewed spacecraft in records dispatched by way of the United States of America.

Earth-Orbit Satellites – all of the satellites, which orbit across the Earth, fall in this class. The maximum tremendous satellite in orbit on the Earth is Hubble Telescope.

Space Probe – these are unmanned spacecraft that might be fitted with medical instruments for exploring objects in space e.g. planets, Moon, and solar.

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It's worth noting that the negative signs in the lens equation and magnification formula indicate that the image formed by a diverging lens is always virtual and upright. This means that the light rays from the object are diverging when they reach the lens, and the lens bends the light rays so that they appear to be coming from a virtual image point on the opposite side of the lens.

In terms of the magnification, a magnification of 0.40 means that the image is 40% the size of the object, but it is also inverted. So, if the object is an upright arrow, the image will be a smaller, inverted arrow. It's also worth noting that a diverging lens always has a negative focal length, which means that it always forms virtual images that are smaller than the object. Diverging lenses are used in eyeglasses to correct nearsightedness, and in certain optical instruments to spread out light or reduce its intensity.

The magnification formula for a diverging lens is:

m = -di/do

where m is the magnification, di is the image distance, and do is the object distance.

The focal length (f) of the lens is related to the image and object distances by the lens equation:

1/f = 1/di + 1/do

Substituting the given value of focal length (f = -10 cm) into the lens equation, we get:

1/-10 cm = 1/di + 1/do

Simplifying this equation, we can rearrange it to solve for di:

di = -do / (m - 1)

Substituting the given magnification (m = 0.40) into this equation, we get:

di = -do / (0.40 - 1)

di = -do / (-0.60)

di = 1.67 do

Therefore, the image distance is 1.67 times the object distance. To find the object distance that gives a magnification of 0.40, we can set di = -0.40 do (since m = -di/do) and solve for do:

-0.40 do = 1.67 do

Simplifying this equation, we get:

do = di / (-0.40)

do = -1.67 di

Therefore, the object distance that gives a magnification of 0.40 is 1.67 times the image distance. If we assume that the image is formed at the lens' focal length (di = -10 cm), then the object distance is:

do = -1.67 di

do = -1.67 (-10 cm)

do = 16.7 cm

Therefore, the object distance at which the magnification is 0.40 is 16.7 cm.

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The stroking method of magnetization is a technique used to magnetize ferromagnetic materials. It is based on the principles of domain theory, which helps us understand the behavior of magnetic materials at the atomic and microscopic level.

In domain theory, a ferromagnetic material is composed of many tiny regions called magnetic domains. Each domain consists of a large number of aligned atomic magnetic moments, creating a net magnetic field within the domain.
However, the magnetic moments in different domains can be randomly oriented, resulting in a lack of overall magnetization in the material.

The stroking method takes advantage of the fact that magnetic domains can be influenced and aligned by an external magnetic field. When a ferromagnetic material is subjected to an external magnetic field, the field causes the magnetic moments in the domains to align in the direction of the applied field. As a result, the domains merge and grow in size, leading to an overall magnetization of the material.

To apply the stroking method, a non-magnetized ferromagnetic material, such as a piece of iron, is taken and a strong permanent magnet is brought close to it.
The magnet is then repeatedly stroked along the length of the material in the same direction. The stroking motion ensures that the external magnetic field from the permanent magnet is consistently applied to the material.

As the magnet is stroked, the aligned magnetic domains within the material start to merge and grow. This process continues with each stroke, gradually increasing the overall magnetization of the material. Eventually, after several strokes, the material becomes fully magnetized, with the majority of the magnetic domains aligned in the direction of the stroking.

The stroking method is effective because the repeated application of the external magnetic field helps overcome the resistance of domain boundaries within the material.
These boundaries are regions where magnetic moments change orientation between adjacent domains, and they can hinder the alignment process.
By stroking the material, the external field continuously acts on the domains, encouraging them to overcome these barriers and align more uniformly.

It's important to note that the stroking method is a relatively simple and basic technique for magnetizing materials. In practical applications, more sophisticated methods, such as using electromagnets or specialized machinery, are often employed to achieve precise and controlled magnetization. However, the underlying principle of domain alignment remains a fundamental concept in magnetism.

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The “sum of forces” acting on a cart can be explained as the net force or resultant force acting on it. This term refers to the total amount of force acting on an object, considering both the direction and magnitude. The cart's acceleration is influenced by this force, which is critical in the laws of physics.

The following is a description of the “sum of forces” acting on a cart: The sum of forces can be calculated using the formula F = ma, where F is the force acting on the cart, m is the mass of the cart, and a is the acceleration produced by the force. If there is more than one force acting on the cart, it is necessary to calculate the net force, which is the sum of all the forces acting on the cart.
The sum of forces can be split into two components: internal and external forces. Internal forces are those generated within the object, whereas external forces are exerted by other objects. The frictional force between the wheels of the cart and the surface is an example of an internal force acting on the cart.
The gravitational force exerted by the Earth is an example of an external force acting on the cart. If there are more than two forces acting on the cart, vector addition must be used to determine the net force.
The sum of forces acting on the cart is critical in the laws of physics. If the sum of forces acting on the cart is zero, it implies that there is no net force acting on it, and it is either stationary or moving at a constant velocity. If the sum of forces is nonzero, it implies that there is a net force acting on the cart, and it is either accelerating or decelerating.

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The specific heat capacity of the metal sample is determined from the ratio of quantity heat to the product of mass and temperature rise.

The specific heat capacity of a substance is the quantity of heat required to raise a unit mass of the substance.

Q = mcΔθ

where;

c = Q/mΔθ

Thus, the specific heat capacity of the metal sample is determined from the ratio of quantity heat to the product of mass and temperature rise.

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Answer:

7 Seconds

Explanation:

P=W/t

t=W/P

t=875,000/125,000

t=7 seconds