When a constant force acts upon an object, the acceleration of the object varies inversely with its mass. When a certain constant force acts upon an object with mass 2 kg, the acceleration of the object is 34 /ms2. If the same force acts upon another object whose mass is 17 kg, what is this object's acceleration?

The minimum speed that each particle must have when they are 100 fm apart in order to escape each other and eventually stop is \(2.187 * 10^8 m/s.\)

The coulomb's constant k = 8.988 × 10^9

q1 = q2 (charges of electron and positron) =\(1.602 * 10^-^1^9 C\)

r = 100

fm =\(100 * 10^-^1^5 m\)

m = mass of electron or positron =\(9.109 * 10^-^3^1 kg\)

The minimum speed is then :

vi = √((2 * k * (q1 * q2)) / (m * r))

vi = √(\((2 * (8.988 * 10^9 N m^2/C^2) * (1.602 * 10^-^1^9 C)^2) / ((9.109 * 10^-^3^1 kg) * (100 * 10^-^1^5 m\))))

vi =  \(2.187 * 10^8 m/s\)

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The minimum speed required for an electron and positron, released with a speed of \(v_i\), to escape each other and eventually stop, when they are 100 femto meters apart, is \(2.6 \times 10^6 m/s\).

According to Coulomb's Law, the electric force between two electrically charged particles is proportional to the product of the charges on the particles and inversely proportional to the square of the distance between them.
The formula for the force between two point charges is given by: \(F = \frac {(k \times q_1 \times q_2)}{r^2}\) where F is the force between the charges, q1 and q2 are the charges on the particles, r is the distance between the particles, and k is the Coulomb's constant, whose value is 9x10⁹ Nm²/C².
The force between an electron and positron, having equal charges but opposite signs, is given by: \(F = \frac {(ke^2)}{r^2}\) where e is the charge on one of the particles.

Since the charges on both particles are equal, the force between them will be F = (ke²) / r². The formula for kinetic energy is given by: K.E = ½ mv² where K.E is the kinetic energy of the particle, m is its mass, and v is its velocity. When the electron and positron are 100 femto meters apart, the force between them is: \(F = \frac {(9 \times 10^9 Nm²/C²) \times (1.6 \times 10^-19 C)^{2} }{(100 \times 10^{-15} m)^2}\)

\(= 2.304 \times 10^{-8} N\).
The potential energy of the system is given by:

U = (ke²) / rU =\(\frac { (9 \times 10^9 Nm^2/C^2) \times (1.6 \times 10^-19 C)^2}{100 \times 10^-15 m)}= 2.304 \times 10^{-25} J\). At the minimum distance between the particles, the kinetic energy of each particle is equal to half the potential energy of the system.

Therefore, we have: K.E = ½ mv² = \(\sqrt{\frac {\frac {U}{m}}{2}}\)

Substituting the values, we get: \(v = \sqrt{\frac {(2 \times 2.304 \times 10^{-25} J / 9.1 \times 10^{-31} kg)}{2}} = 2.6 \times 10^6 m/s.\)

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Answer: Soils with smaller particles (silt and clay) have a larger surface area than those with larger sand particles, and a large surface area allows a soil to hold more water. In other words, a soil with a high percentage of silt and clay particles, which describes fine soil, has a higher water-holding capacity.

Silty clay loam: 1.80-2.00

Texture: Inches of water storage per foot of soil .

Explanation: hope this helps!!!!

In my opinion it's picture D

Answer:

Published ✎ ↪ The image formed from a convex mirror is always upright, diminished and virtual, regardless of where the object is placed. Rays that are parallel to the principal axis reflect in a direction directly away from the focal point, which is halfway between the mirror and the centre of curvature for the mirror.

Explanation:

This might sound like a school assignment, but it actually demonstrates the forces acting on a rotor hub. Considering that the Cof G is halfway up the blade, or 3.9 m, the G force will operate on the blade.

Science has a particular definition for the word "force." Using the terms "push" or "pull" to describe a force at this level is perfectly acceptable. . A force from some other thing is felt by something else. A force is a force, regardless of whether anything is alive or not.

A body's propensity to modify to change its structure as a reaction of an external factor is referred to as "force." The body may also change in size, shape, or direction as a result of a force being applied to it. A 448 G force is calculated to be applied to its blade. Correct: 400 for Six!

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The appropriate term for each statement is as follows;

Weight is the force on an object due to the gravitational attraction between it and the Earth (or whatever astronomical object it is primarily influenced by).

Mass, on the other hand, is a quantity of matter cohering together so as to make one body, or an aggregation of particles or things which collectively make one body or quantity.

Weight is measured in Newton's because it is a force while mass is measured in kilograms. The weight is affected by the gravity of the planet the object exists.

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Addition of vectors is done by adding the components of the vectors

The total speed of the fan  is approximately 9.43 m/s,

Direction of total wind 58° counterclockwise from the positive x-axis

The reason the value is correct is as follows:

The given parameters are:

The direction at which the fan blowing at 5 m/s is blowing = Easterly

The direction in which the fan blowing 8 m/s is blowing = Northerly

The total speed of the van, |v| ≈ 9.43 m/s

Required:

To find the total wind speed of the fans

Solution:

Taken the easterly direction as the ith component, and the northerly direction as the jth component,  the vector representing the speed of the fan is presented as follows

v = 5·i + 8·j

The magnitude of the total wind speed of the fan, |v| = √(5² + 8²) = √(89) ≈ 9.43

The total wind speed of the fan , |v| ≈ 9.43 m/s

The direction of the total speed with respect to the x-axis, θ, is given as follows;

θ = arctan(8/5) ≈ 58°

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Answer:

No

Explanation:

Density determines whether an object sinks or float. if the object is less dense than the medium in which it was submerged, it will float. for example, when you pour oil in water, it floats because water is denser than oil.

Answer:

A. F₀d

Explanation:

The formula for work done on an object is given by:

w= f*d

Work done towards the positive direction is given by ;

Work done under the trapezoid shaped area:

1/2 {a+b} h = 1/2 { 2d + d } F₀

W=3/2dF₀

Work done on the triangle shaped part

W= 1/2 * b * h

W= 1/2 * d * -F₀ =  -1/2dF₀

The net work done :

3/2dF₀ -1/2dF₀ = 1dF₀

Answer:As the Earth rotates on its axis and revolves around the Sun, day and night and seasons result. When the new moon comes between the Earth and the Sun along the ecliptic, a solar eclipse is produced. When the Earth comes between the full moon and the Sun along the ecliptic, a lunar eclipse occurs.

Explanation:

When curling the hair for a thermal design, a hard-rubber or nonflammable comb should be positioned near the base of the hair section.

This is because the heat from the curling iron or other thermal tool can cause the comb to melt or become damaged if it is too close to the heated area. Placing the comb near the base of the hair section also helps to create a smooth and even curl.

Additionally, using a nonflammable comb helps to prevent any potential fire hazards that could occur if a plastic comb were to come into contact with the heat source. Overall, positioning the comb properly and using the right type of comb are important factors in achieving a safe and effective thermal design.

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The uncompressed density of a planet in our solar system varies.

The uncompressed density of a planet in our solar system can vary depending on its composition and structure. Different planets have different compositions, including a mix of rock, metal, gas, and ice. This composition affects their overall density.

For example, terrestrial planets like Earth, Mercury, Venus, and Mars have relatively high uncompressed densities due to their rocky compositions. These planets have solid surfaces and a dense core made of metal and rock.

Gas giants like Jupiter and Saturn have lower uncompressed densities because they are composed mainly of hydrogen and helium gases. These planets have a thick atmosphere surrounding a core, but the overall density is much lower than that of terrestrial planets.

Ice giants like Uranus and Neptune have a combination of gases and icy materials, resulting in a slightly higher uncompressed density compared to gas giants.

It's important to note that the uncompressed density of a planet can vary within its interior, with different layers having different densities. This variation is due to differences in pressure, temperature, and composition as we move deeper into the planet.

Therefore, the uncompressed density of a planet in our solar system cannot be generalized, and it varies depending on the specific planet and its composition.

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Answer:

2892.31 N

Explanation:

Applying,

P = F×v................ Equation 1

Where P = power of the motor, F = Weight of the load the motor can lift, v = velocity

make F the subject of the equation

F = P/v.............. Equation 2

Given: P = 188 W, v = 0.065 m/s

Substitute into eequation 2

F = 188/0.065

F = 2892.31 N

Hence the weight of the load is 2892.31 N

After using  Newton's second law, The acceleration of the balloon as it comes to a stop is -500 m/s², the net force on the balloon during impact is -250 N and the new net force on the balloons during impact with the increased impact time is -31.25 N

a. To find the acceleration of the balloon as it comes to a stop, we can use the equation of motion:

v = u + at

where:

v = final velocity (0 m/s, as the balloon comes to a stop)

u = initial velocity (25 m/s, the terminal velocity of the balloon)

a = acceleration (unknown)

t = time taken to come to a stop (0.05 s)

Rearranging the equation, we have:

a = (v - u) / t

  = (0 m/s - 25 m/s) / 0.05 s

  = -25 m/s / 0.05 s

  = -500 m/s²

Therefore, the acceleration of the balloon as it comes to a stop is -500 m/s² (negative sign indicates the direction opposite to the initial velocity).

b. To find the net force on the balloon during impact, we can use Newton's second law of motion:

F = ma

where:

F = net force (unknown)

m = mass of the balloon (0.5 kg)

a = acceleration (from part a, -500 m/s²)

Substituting the values, we get:

F = (0.5 kg) * (-500 m/s²)

  = -250 N

Therefore, the net force on the balloon during impact is -250 N (negative sign indicates the direction opposite to the initial velocity).

c. With the introduction of pillows, the impact time increases to 0.4 seconds.

To find the new acceleration, we can use the equation of motion:

a = (v - u) / t

  = (0 m/s - 25 m/s) / 0.4 s

  = -25 m/s / 0.4 s

  = -62.5 m/s²

Therefore, the new acceleration of the balloons with the increased impact time is -62.5 m/s².

To calculate the new net force during impact, we can use Newton's second law:

F = ma

  = (0.5 kg) * (-62.5 m/s²)

  = -31.25 N

Therefore, the new net force on the balloons during impact with the increased impact time is -31.25 N (negative sign indicates the direction opposite to the initial velocity).

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The weight of the rock at the surface of Venus is 66.5 N

What is the weight of the rock at the surface of Venus ?

On earth,

The weight of the rock at the surface of earth = 75 N

The weight of an object on earth's surface is:

W = m g

Here, m = mass of rock

acceleration due to gravity (g) = 10 m/s²

W= mg

m = \(\frac{W}{g}\)

m = \(\frac{75}{10}\)

m = 7.5 kg

On Venus,

mass (m) = 7.5 kg

acceleration due to gravity(g) = 8.87 m/s²

W= mg

  = 7.5 * 8.87

   =66.5 N

What is acceleration due to gravity?

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Answer:

If it is pure, the substance is either an element or a compound. If a substance can be separated into its elements, it is a compound. If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture. If its composition is uniform throughout, it is a homogeneous mixture.

Explanation:

A football player throws a football 30 meters in 2.5 seconds, divide 30 by 2.5 and get 12.

An object's speed, also known as "v," is the amount by which its position changes over time or by how much it changes per unit of time, making it a scalar number.  

The instantaneous speed is the upper limit of the average speed as the duration of the time interval approaches zero. The average speed of an item in a period of time is equal to the distance traveled by the object divided by the duration of the period. Velocity and speed are not the same thing.

The parameters of speed are time divided by distance. The metre per second (m/s), the SI measure of speed, is the most widely used unit of speed in daily life.

Therefore, A football player throws a football 30 meters in 2.5 seconds, divide 30 by 2.5 and get 12.

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To determine how many times a minute a leaf bobs up and down on ocean waves with a wavelength of 25 m and a propagation speed of 5.5 m/s, we need to use the equation: Frequency = Propagation Speed / Wavelength

To determine how many times a minute a leaf bobs up and down on ocean waves with a wavelength of 25 m and a propagation speed of 5.5 m/s, we need to find the wave frequency.

Step 1: Use the wave speed formula to find the frequency. The formula is:

Wave speed = Wavelength × Frequency

Step 2: Rearrange the formula to solve for frequency:

Frequency = Wave speed / Wavelength

Step 3: Plug in the given values:

Frequency = 5.5 m/s / 25 m

Step 4: Calculate the frequency:

Frequency = 0.22 Hz

Step 5: Convert the frequency from Hz (cycles per second) to cycles per minute:

Cycles per minute = 0.22 Hz × 60 seconds/minute

Cycles per minute ≈ 13.2

Therefore, the leaf bobs up and down approximately 13 times a minute on ocean waves with a wavelength of 25 m and a propagation speed of 5.5 m/s.

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The highest pressure which can be read in the closed-end glass manometer is given by option e 620 torr

At the highest pressure, the height of mercury in the closed end will be 80 cm. The height of mercury in the open end will be 18 cm. The pressure read on the manometer = pressure exerted be difference in heights of mercury in the closed end manometer = 80-18 cm of mercury = 62 cm of mercury= 62 cm of Hg

62 cm of Hg = 620 mm of Hg

We know that 1 mm Hg = 1 Torr.

Therefore 620 mm Hg = 620 Torr. answer

Thus the answer for the highest pressure that can be read in torr on this manometer is option e which is 620 torr

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Answer:

Thin, aluminium and buried underground.

Explanation:

When it comes to electrification of a state or province, some characteristics of the wire to use must be considered. This would help to minimize and avoid power loss and wire burns.

i. The wire to use should be thin, and a quite number can be twisted one against the other so as to increase the surface area for heat dissipation.

ii. Aluminium wire is more preferable for this project. It has a high melting point, and reduces energy loss.

iii. Burying the wire underground through an insulator is the best choice, though expensive but would preserve the wire from external influence.

An individual's capacity to notice and learn about a stimulus is diminished if they have previously been exposed to it in a neutral or irrelevant environment. This phenomenon is known as latent inhibition.

With the use of traditional training procedures, latent inhibition is frequently examined. In a typical experiment, an individual or an animal is repeatedly exposed to an unimportant stimulus with no noticeable results. In following trials, the neutral stimulus is coupled with a physiologically important stimulus (such as food or an electric shock).

The goal is to determine how the subject's capacity to build an association between the neutral stimulus and the important stimulus is affected by the subject's prior exposure to the neutral stimulus. According to the phenomena of latent inhibition, prior exposure to a stimulus without any discernible effects results in a reduction in attention or learning when the stimulus is subsequently encountered in a pertinent context.

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Answer:

Explanation:

NEWTON'S FIRST LAW OF MOTION:

a body continues its state of rest or of uniform motion in a straight line provided no net force acts on it. Fnet=0

NEWTON'S SECOND LAW OF MOTION:

when a net force acts on a body it produces acceleration in the body which is directly proportional to the magnitude of the net force and inversely to the mass of the body.F=ma

NEWTON'S THIRD LAW OF MOTION:

to every action there is always an equal but opposite reaction.

Answer:

Newton’s laws of motion can be summarized as follows:

An object will remain at rest, or in a uniform, straight-line motion if moving, unless an external force acts upon it.

Force equals change in momentum per change in time. For an object with constant mass, force equals mass times acceleration.

For every action, there is an equal and opposite reaction.

In Depth:

A rock resting on level ground won’t suddenly start moving unless you push it. This is Newton’s first law, which introduces the principle of inertia. Inertia tells us that objects at rest stay at rest, and objects in motion stay in motion at a constant velocity (speed in one direction). When a force acts on the object, it changes its behavior.

For example, when you push the rock along the ground, you apply an external force that causes the rock to break out of inertia and begin moving. When you throw the rock through the air, the force of gravity acts upon it and slows it down, pulling it back to earth. If you threw that rock in outer space with no external force of gravity acting upon it, the flying rock would travel indefinitely forward at constant velocity because of inertia.

Force (F) equals mass (m) times acceleration (a). An object’s mass is the amount of matter it contains. An object’s acceleration is its change in velocity—whether the object is speeding up or slowing down as it moves.

If this seems complicated, just think about how everyday objects react to force. It’s easier to push a soccer ball a certain distance than it is to push a car that same distance. That’s because the soccer ball has much less mass than the car, so it requires less force to create the same amount of acceleration.

A rocket has to fire its engines forcefully to overcome gravity and propel itself into outer space. The force of gas propelling downwards creates a reaction that pushes the rocket in the opposite direction with equal force. This is Newton’s third law: every action has an equal and opposite reaction.

As a result of Newton’s third law, all forces come in pairs. When you push against solid ground with your foot, the ground doesn’t fly off —it pushes back against you. This law helps us understand how objects with different forces interact.

The inclination of a system refers to the angle between the plane of the system and the plane of the sky as seen from Earth. A system with greater amplitude will have larger variations in brightness and thus will be easier to observe.

The amplitude of a system depends on the geometry of the system and the angle at which it is viewed. For example, a system viewed edge-on (i.e. with an inclination of 90°) will have a larger amplitude than a system viewed face-on (i.e. with an inclination of 0°), because the edge-on view will show more of the system's structure and produce larger variations in brightness.

Therefore, if we assume that systems with greater amplitude are easier to observe, we would be more likely to observe a system with an inclination near 90° than one with an inclination near 0°. This is because an edge-on view would produce larger variations in brightness, making the system easier to detect and study. However, it is important to note that the inclination angle is just one factor affecting the detectability of a system, and other factors such as distance, size, and brightness also play a role.

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Answer:

NaCl (Sodium Chloride)

Explanation:

This is the answer

The orange liquid would stay near the top of the lava lamp if the heat did not conduct out of the top of the lava lamp.

Lava lamp - A lava lamp is a decorative lamp, It consists of a bolus of a special coloured wax mixture inside a glass vessel, the remainder of which contains clear or translucent liquid.

The lava lamp contains two liquids with different densities that do not mix and that expand at different rates when heated.

We observe that in the lava lamp experiment, the density of oil is much lower than that of water. Although the water and oil layers separate due to the densities the food couriering has the same density as that of water.

So, If heat did not conduct out of the top of the lava lamp, the orange liquid would stay near the top of the lava lamp

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Data obtained from the measurements of potential difference as well as the corresponding distances (r) from the center of solid conducting sphere, can be used to determine the net charge on the sphere.

When the data is plotted as VAB versus 1/r, it forms a straight line with a slope of -18.0 V⋅m. The slope of this line is related to the charge on the sphere.

To find the net charge, we can use the relationship between electric potential difference (V), charge (Q), and distance (r):

V = k * (Q/r)

Where:
- V is the electric potential difference between points A and B
- k is the electrostatic constant (9.0 x 10⁹ N⋅m²/C²)
- Q is the net charge on the sphere
- r is the distance from the center of the sphere to point B

Since the slope of the straight line in the plot is -18.0 V⋅m, we can equate this to the expression for V:

-18.0 V⋅m = k * (Q/r)

Simplifying the equation, we have:

(Q/r) = -18.0 V⋅m / k

Now, to find the net charge on the sphere, we need to solve for Q. We can rearrange the equation as follows:

Q = (-18.0 V⋅m / k) * r

Since the radius of the sphere is given as 5.00 cm (or 0.05 m), we can substitute this value into the equation:

Q = (-18.0 V⋅m / k) * 0.05 m

Calculating the value using the given value of k, we find:

Q ≈ -18.0 V⋅m * 0.05 m / (9.0 x 10⁹ N⋅m²/C²)

This calculation gives us the net charge on the solid conducting sphere. However, it is important to note that the negative sign in the equation indicates that the net charge is negative.

So, the data obtained from the measurements of the potential difference and the corresponding distances allows us to determine the net charge on the sphere.

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When the difference is small, that is the starting orbit is just one level above the ending orbit, the wavelength of the photon will have a relatively small value.

Atomic emission is the process of light emission from an atom that occurs when the atom gets excited by either heating, bombarding with electrons, or a discharge of electric current. When an atom is excited, the electrons gain energy and move to a higher energy level or shell. When they return to the lower energy state, they emit energy in the form of electromagnetic radiation or light.

The energy of the emitted photon or light is directly proportional to the difference in the energy levels of the atom before and after the emission process. The relationship is given by:E=hfwhere E is the energy of the emitted photon, h is the Planck's constant, and f is the frequency of the emitted photon. The frequency of the emitted photon can be calculated using the formula:f=c/λwhere c is the speed of light and λ is the wavelength of the photon.

Thus, for an atom to emit radiation of a particular wavelength, the difference in energy levels of the atom must correspond to that wavelength. If the difference is small, the wavelength of the emitted photon will also be small, and if the difference is large, the wavelength of the emitted photon will be large.

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(a) The Moon  is about the same age as Earth.The widely accepted theory of the Moon's origin is the giant impact hypothesis.

According to this hypothesis, around 4.5 billion years ago, a Mars-sized object collided with the early Earth, ejecting debris into space. This debris eventually coalesced and formed the Moon. Therefore, the Moon and Earth are believed to have formed around the same time.

On the scale of the 5-billion-year age of the solar system, the Moon is about the same age as Earth

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Answer:

\(a)uf = 205 + 35 - 11 \\ = 240 - 11 \\ = 229j \\ b)q(heat \: transferd) = 229 - 205 - 11 \\ = 24 - 11 \\ = 13j \\ thank \: you\)

The heat transferred is

a) u f = 205+35-11

      =240-11

      = 229 j

b) q (heat transferred ) = 223-205-11

   = 24-11

   = 13 j

While a thermodynamic gadget passes thru an exchange in the state, a succession of states exceeded could be termed as a course of the device or direction of an alternate country. If the route of change of kingdom is completely distinctive, route of alternate of the nation may be termed as thermodynamic manner.

The technique is described via a direction, which is the non-stop collection of consecutive states via which the machine passes, consisting of the initial nation, the intermediate states, and the very last state. The process has a course along the course.

An asset whose price would not depend upon the course taken to attain that unique price is thought to as kingdom capabilities or point features. In contrast, those capabilities which do depend upon the direction from points are referred to as course features.

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