distance also plays a role in the force of gravity. explain how the force changes with respect to distance.

Answers

Answer 1

Since gravitational force is proportional to the ratio of both the distances that separate two interacting objects, greater separation distance will result in reduced gravitational forces.

What in science is a force?

In science, the word "force" has a particular definition. Labeling a motion a push or a pull at this level is perfectly appropriate. There was no such thing as a power that anything "has in it" or "contains." A force is applied to one item by another. The idea of a force encompasses both living and non-living entities.

What four primary forces are there?

The strong force, weak force, electromagnetic force, and gravitational force are the four basic forces operating in the universe. They each operate under various parameters and have unique strengths.

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Related Questions

is a fine-grained wind-deposited sediment that can cover wide areas. (enter only one word per blank.)

Answers

Answer:

I'm not entirely sure of this is correct but I think it is loess

Study the scenario. The particles in some system are moving around quickly. A few minutes later, the particles are moving, on average, more slowly. How does this change in motion affect the temperature of the system? A. The temperature of the system did not change. The speed of the particles has no effect on the temperature, only the type of atom affects the temperature. B. The temperature of the system is higher now than it was initially. Slower moving particles result in a higher temperature for the system. C. The temperature of the system did not change. The speed of the particles does not affect temperature, the number of particles affects the temperature. D. The temperature of the system is lower now than it was initially. Faster moving particles result in a higher temperature for the system.

Answers

Answer:

The correct answer is option D.

Explanation:

With an increase in temperature, the particles increase kinetic energy and move quicker. The normal speed of the particles relies upon their mass just as the temperature – heavier particles move more gradually than lighter ones at a similar temperature.

The temperature increase in this system since the average kinetic energy of the particles increases and particles move quickly. And after some time the temperature of the system is lower now than it was initially.

Thus, the correct answer is option D.

The impact of the change in motion should be option D.

Impact on the temperature:

In the case when there is an increase in temperature, the particles should increase kinetic energy and move faster. The normal speed of the particles believes their mass is like the temperature. The temperature rises in this system because the average kinetic energy of the particles should rised and particles move faster.

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If Siobhan hits a 0.25 kg volleyball with 0.5 N of force, what is the acceleration of the ball?

m/s2

Answers

Answer:

2ms-2

Explanation:

F = ma

a = F/m

= 0.5 / 0.25

= 2ms-2

Answer 2m/s^2

Explanation:

mass=0.25kg

Force =0.5N

Acceleration=force/ mass

Acceleration=0.5/0.25

Acceleration=2

Acceleration =2m/s^2

a person stands on a scale in an elevator. as the elevator starts, the scale has a constant reading of 598 n. as the elevator later stops, the scale reading is 384 n. assume the magnitude of the acceleration is the same during starting and stopping. (a) determine the weight of the person. n (b) determine the person's mass. kg (c) determine the magnitude of acceleration of the elevator.

Answers

The magnitude of the acceleration of the elevator is approximately 3.51 \(m/s^2\).

(a) The scale reading when the elevator is at rest gives the normal force acting on the person, which is equal in magnitude to the person's weight. Thus, the weight of the person is 598 N when the elevator is at rest.

(b) The weight of an object is given by the product of its mass and the acceleration due to gravity.

weight = mass x acceleration due to gravity

598 N = mass x 9.81 \(m/s^2\)

mass = 60.9 kg

Therefore, the person's mass is approximately 60.9 kg.

(c) We can use Newton's second law (F = ma) to find the acceleration of the elevator. The net force acting on the person is given by:

net force = final force - initial force

net force = 384 N - 598 N

net force = -214 N

net force = mass x acceleration

-214 N = 60.9 kg x acceleration

acceleration = -3.51 \(m/s^2\)

Therefore, the magnitude of the acceleration of the elevator is approximately 3.51 \(m/s^2\).

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17) Name two ways you could decrease the potential energy of a bucket full of water sitting on a bench.

Answers

Answer: Two ways you could decrease the potential energy of a bucket full of water sitting on a bench are: -(i) Lift it in such a way that you decrease its height as compared to the bench.(ii) Put it on a stool whose height is lower than the bench.

Explanation:

The potential energy of an object has the following formula

         Potential energy = mgh

      where m = mass of the object

                   g = acceleration due to gravity

                   h = height of the object

This means that the potential energy of an object depends upon its mass, acceleration due to gravity, and height.

In the given situation we have a bucket full of water. If the mass and acceleration due to gravity are not changed, the only way the potential energy can be decreased is by reducing the height of the bucket full of water.

This can be done by: -

         (i) Lifting the bucket full of water in such a way that you

             decrease its height as compared to the bench.

        (ii) Put the bucket full of water on a stool whose height is

            lower than the bench.

Answer:

1.By decreasing it's contents- this decreases the weight of the bucket thus decreasing the potential energy of the bucket.

2.By decreasing the height of the bench we have decreased the amount of potential energy stored in the bucket

An object has an acceleration of 12.0m/s/s. If the mass of this object were doubled (with no change in its net force), then it’s new acceleration would be ___ m/s/s.

Answers

Answer:

6m/s^2

Explanation: this is because when the object is mass is increasing the object's acceleration will divide into two.

An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the
right. What is the displacement of the object?

Answers

Answer: The displacement of the object is 5 units to the right.

Explanation: 0 + 3 - 4 + 6 = 5

(left is in the negative direction, whereas right is in the positive.)

can you give me an example about radiation

Answers

Explanation:

 A burning candle emits radiation in the form of heat and light. The Sun emits radiation in the form of light, heat, and particles.

Answer: The energy from the sun is one great example of radiation. The sun emits light in a broad range of wavelengths which all contain energy. These waves are also discussed in the climate section for energy balance. The waves are emitted from the sun and travel through space and hit the earth and other planets.

EXTRA EXAMPLES: heat from a stove burner.

visible light from a candle.

x-rays from an x-ray machine.

alpha particles emitted from the radioactive decay of uranium.

sound waves from your stereo.

microwaves from a microwave oven.

electromagnetic radiation from your cell phone.

When a car velocity is negative and its acceleration is negative, what is happening to the cars motion?

Answers

Answer:

The car is speeding up in a negative direction.

Explanation:

it takes less and less time to fuse heavier and heavier elements inside a high-mass star.

Answers

This statement is partially correct. It takes less and less time to fuse heavier elements up to iron inside a high-mass star, but beyond iron, fusion requires energy instead of releasing energy and is not sustainable.

It takes less and less time to fuse heavier and heavier elements inside a high mass star. Iron is the most stably bonded atomic nucleus. When a stellar iron core collapses, large numbers of neutrinos are formed, and then: they immediately pass through the core and escape to space.

Higher mass stars will switch from helium to carbon burning and extend their lifetimes. Even higher mass stars will burn neon after carbon is used up. However, once iron is reached, fusion is halted since iron is so tightly bound that no energy can be extracted by fusion

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what do linguists call small units of sound that carry meaning on their own?

Answers

Linguists call small units of sound that carry meaning on their own "morphemes".

Actually, phonemes are the smallest units of sound in a language that can distinguish meaning. They are abstract units of sound that differentiate one word from another word in a language. For example, in English, the sounds /p/ and /b/ are phonemes because they distinguish words like "pat" and "bat".

Morphemes, on the other hand, are the smallest units of language that carry meaning. They can be made up of one or more phonemes. For example, the word "cats" has two morphemes: "cat" and "-s" (which indicates plurality), and each of these morphemes is made up of phonemes.

So while phonemes are important in distinguishing meaning, morphemes are the smallest units of language that carry meaning on their own.

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a high-speed drill reaches 2500 rpm in 0.59 s .
a) What is the drill's angular acceleration? b)Through how many revolutions does it turn during this first 0.50s?

Answers

A high-speed drill reaches 2500 rpm in 0.59 s, a) The drill's angular acceleration is approximately 443.73 rad/s^2. b) The drill turns approximately 10.41 revolutions during the first 0.50s.

a) The drill's angular acceleration can be calculated using the formula:

Angular acceleration (α) = (Final angular velocity (ωf) - Initial angular velocity (ωi)) / Time taken (t)

Given:

ωi = 0 (initially at rest)

ωf = 2500 rpm = 261.8 rad/s (converted to radians per second)

t = 0.59 s

Substituting the values, we get:

α = (261.8 rad/s - 0) / 0.59 s

α ≈ 443.73 rad/s^2

b) The number of revolutions the drill turns during the first 0.50s can be calculated using the formula:

Number of revolutions = (Angular displacement (θ)) / (2π)

Given:

ωi = 0 (initially at rest)

ωf = 2500 rpm = 261.8 rad/s (converted to radians per second)

t = 0.50 s

Using the formula, we can first calculate the angular displacement (θ) of the drill:

θ = (ωf + ωi) / 2 * t

θ = (261.8 rad/s + 0) / 2 * 0.50 s

θ = 65.45 radians

Substituting this value in the formula for the number of revolutions, we get:

Number of revolutions = 65.45 radians / (2π)

Number of revolutions ≈ 10.41 revolutions

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What is a similar Mid-Ocean Ridge on dry land compared to?

Answers

Answer:

Mid-ocean ridges around the globe are linked by plate tectonic boundaries and the trace of the ridges across the ocean floor appears similar to the seam of a baseball.

Explanation:

if the ac current applied to the primary coil is 4.1 4.1 a, what current is present in its secondary coil? $$​

Answers

The current present in secondary coil is 75.19A.

Transformers are used in a wide range of electrical and electronic applications, performing a variety of tasks including isolation, stepping up or down voltage and current, noise rejection, signal measurement, regulation, and a host of other tasks specific to a given application.

Turns ratio testing is one of the most popular tests used to determine whether a transformer will perform according to its design specifications.

The fundamental theory of turns ratio will be briefly reviewed in this technical note, after which we'll discuss some new concerns that should be taken into account when testing this crucial transformer property.

The induced voltage effect in any coil caused by a shifting magnetic flux surrounding the coil is described by Faraday's law of induction, which was discovered in 1831.

Mathematics-

\(i=2\pi\alpha I/\sqrt{2}\)

i=current through secondary coil

I= current through primary coil

α= standard energy gap

Calculations-

=2 x 3.13 x 4.13 x 4.1/1.414

=75.19A

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PLEASE HELP!!

A student fires a cannonball diagonally with a speed of 34.om/s from a height of 66.0m as shown. Neglect drag. Determine all unknowns and answer the following questions.


How long did the ball rise?

What was the ball's maximum height above the ground?

How long did the ball remain in the air?

How far from the base of the building did the ball land?

How fast was the ball moving as it struck the ground?

PLEASE HELP!!A student fires a cannonball diagonally with a speed of 34.om/s from a height of 66.0m as

Answers

The ball rises for approximately 3.6 seconds.The ball reaches a maximum height of approximately 117 meters above the ground.The ball lands approximately 241 meters from the base of the building.The ball was moving at approximately 29.1 m/s when it struck the ground.Projectile motion problem

We can use the equations of projectile motion to determine the unknowns and answer the following questions:

The time it takes for the ball to reach its maximum height can be found using the following equation:

Vy = Voy - gt

where Voy is the initial vertical velocity and g is the acceleration due to gravity. At the maximum height, the vertical velocity of the ball is zero, so we have:

0 = Voy - gt

t = Voy/g

t = (34.0 m/s)sin(73°)/9.81 m/s^2 ≈ 3.6 s

The maximum height reached by the ball can be found using the following equation:

         y = Voyt - 1/2 gt^2

where y is the vertical displacement of the ball. At the maximum height, the vertical displacement is equal to the initial height of the ball, so we have:

66.0 m = (34.0 m/s)sin(73°)t - 1/2 (9.81 m/s^2)t^2

t ≈ 3.6 s

y = (34.0 m/s)sin(73°)(3.6 s) - 1/2 (9.81 m/s^2)(3.6 s)^2 ≈ 117 m

The total time of flight can be found using the following equation:

         t_total = 2t

where t is the time it takes for the ball to reach its maximum height. Substituting the value of t from above, we get:

t_total = 2(3.6 s) ≈ 7.2 s

The horizontal distance traveled by the ball can be found using the following equation:

        x = Vx t

where Vx is the initial horizontal velocity of the ball. Substituting the given values, we get:

x = (34.0 m/s)cos(73°)(7.2 s) ≈ 241 m

The final velocity of the ball can be found using the following equation:

        Vf = sqrt(Vx^2 + Vy^2 - 2gy)

where Vx and Vy are the horizontal and vertical components of the velocity, respectively, and y is the vertical displacement of the ball. At the instant of impact, the vertical displacement is equal to the initial height of the ball, so we have:

y = 66.0 m

Substituting the given values, we get:

Vf = sqrt[(8.9 m/s)^2 + (32.7 m/s)^2 - 2(9.81 m/s^2)(66.0 m)] ≈ 29.1 m/s

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which of the following are research findings on the impact of family processes on divorced families? (select all that apply.)

Answers

The question asks for research findings on the impact of family processes on divorced families.

Numerous research studies have been conducted to understand the impact of family processes on divorced families. Some of the research findings in this area include:

1. Increased conflict: Research indicates that divorced families often experience higher levels of conflict compared to intact families. The process of divorce itself, along with ongoing co-parenting challenges, can contribute to elevated conflict between parents. This conflict can have negative effects on children's well-being and adjustment.

2. Co-parenting quality: Research has shown that the quality of co-parenting relationships post-divorce significantly impacts children's outcomes. Positive co-parenting, characterized by effective communication, cooperation, and shared decision-making, is associated with better psychological and behavioral adjustment in children. In contrast, high levels of conflict and poor co-parenting quality can increase children's risk of experiencing negative outcomes.

3. Parent-child relationships: Research findings indicate that the quality of parent-child relationships can be affected by the divorce process. Divorce can disrupt parent-child dynamics, leading to changes in parenting styles, decreased involvement, or strained relationships. However, research also highlights that post-divorce interventions and support can help improve parent-child relationships and mitigate the negative effects of divorce on children.

In summary, research on the impact of family processes on divorced families suggests increased conflict, the importance of co-parenting quality, and the potential effects on parent-child relationships. These findings highlight the significance of fostering positive family processes and providing support to divorced families to promote better outcomes for children.

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a 65-kg skydiver jumps out of an airplane and falls 310 m, reaching a maximum speed of 53 m/s before opening her parachute.

Answers

The equation for the final velocity of an object undergoing \(t ≈ 5.41 s\)

Why will be reaching a maximum speed of 53 m/s?

We can use the equations of motion to solve this problem. The key is to break the problem into two parts: the freefall part before the parachute is opened, and the part where the parachute is used to slow down the skydiver.

First, we can use the equation for the final velocity of an object undergoing constant acceleration to find the time it takes for the skydiver to reach her maximum speed:

\(v_f = v_i + at\)

where v_f is the final velocity, v_i is the initial velocity (which is 0 in this case), a is the acceleration (which is due to gravity, -9.8 m/s^2), and t is the time.

Rearranging the equation to solve for t, we get:

\(t = v_f / a\)

Substituting the values given, we get:

\(t = 53 m/s / 9.8 m/s^2\)

Simplifying, we get:

\(t ≈ 5.41 s\)

This tells us that it takes 5.41 seconds for the skydiver to reach her maximum speed of 53 m/s.

Next, we can use the equation for the distance traveled by an object undergoing constant acceleration to find the distance the skydiver falls during this time:

\(d = v_i t + (1/2)\)\(at^2\)

where d is the distance, v_i is the initial velocity (which is 0 in this case), a is the acceleration (which is due to gravity, -9.8 m/s^2), and t is the time.

Substituting the values given, we get:

\(d = 0 + (1/2)(-9.8 m/s^2)(5.41 s)^2\)

Simplifying, we get:

d ≈ 147.9 m

This tells us that the skydiver falls about 147.9 meters during the freefall part of the jump.

Now we can calculate the velocity of the skydiver just before opening her parachute using the equation:

\(v_f^2 = v_i^2 + 2ad\)

where v_f is the final velocity (which is 0 in this case), v_i is the initial velocity (which is 53 m/s), a is the acceleration (which is due to gravity, -9.8 m/s^2), and d is the distance traveled during the deceleration phase (which is 310 m - 147.9 m = 162.1 m).

Substituting the values given, we get:

\(0 = (53 m/s)^2 + 2(-9.8 m/s^2)(162.1 m - 147.9 m)\)

Simplifying, we get:

\(0 = 2809 - 6176\)

This is not possible, since it means that the final velocity is imaginary. This suggests that we made an error in our calculations. Checking our work, we find that the error is in the equation we used to calculate the distance traveled during the freefall part of the jump. We used the wrong value for the acceleration due to gravity - it should be positive, not negative:

\(d = v_i t + (1/2)at^2\)

Substituting the correct value for a, we get:

\(d = 0 + (1/2)(9.8 m/s^2)(5.41 s)^2\)

Simplifying, we get:

\(d ≈ 147.9 m\)

This is the same value we found earlier, but with the correct sign for the acceleration. Now we can redo our calculations for the deceleration phase:

\(v_f^2 = v_i^2 + 2ad\)

Substituting the values given, we

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What is the Kinetic Energy of a 210g object that is

moving with a si 17.7m/s? a speed of .

Answers

Answer:

32.89545 joules

Explanation:

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A uniform plank of 5 m is rested across the banks of a stream the plank weighs 50 N how far from the center would the weight appear to act

Answers

Answer:

kenaoaccff da di rumah aja deh biar aman aja nih orang bikin emosi mudah marah sama aja deh kalo gue juga bingung nih anak gaul banget

A satellite is in orbit 35600 km above the surface of the Earth. Its angular velocity is 7.27 * 10 ^ - 5 rad/s. What is the velocity of the satellite? (The radius of the Earth is 6400 km.)

Answers

The linear velocity of the satellite  at the given angular speed and position is determined as 3,053.4 m/s.

What is the linear velocity of the satellite?

The linear velocity of the satellite is calculated by applying the following equations.

v = ωr

where;

ω is the angular velocity of the satellite r is the distance of the satellite from the center of the Earth

The linear velocity of the satellite is the tangential velocity of the satellite and it is measured along the axis or circumference of the Earth.

The distance of the satellite from the center of the Earth is calculated as follows;

r = 35600 km + 6400 km

r = 42,000 km

r = 42,000,000 m

The linear velocity of the satellite is calculated as follows;

v = (7.27 x 10⁻⁵ rad/s) x (42,000,000)

v = 3,053.4 m/s

Thus, the linear velocity of the satellite depends on the angular velocity and distance.

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A 0.5-kg steel (c = 0.5 kj/kg-k) rivet cools from 800 k to 300 k upon being installed in a riveted building structure. the entropy change of this rivet is:_________

Answers

According to the given statement:

The entropy change of this rivet is  -0.245 kJ/K.

The correct option is B.

Why do you use the term entropy change?

Entropy change is a phenomenon that quantifies how disorder or randomness has changed in a thermodynamic process. It has to do with the heat or enthalpy conversion that occurs during work. More randomness indicates a high entropy in a thermodynamic system.

What alters the entropy?

A substance's entropy rises when it is divided into several components. Entropy is increased during the dissolution process because the solute become kept separate from each other when a solution is created. As temperature increases, entropy rises as well.

According to the given information :

When the TDS equation is simplified for this circumstance and integrated, the outcome is:

Temperature1 =  800 k

Temperature2 =  300 k

Mass =   0.5-kg steel

the formula of entropy change:

S2 - S1= mC

(T2 / T1) = 0.5 (0.5)

(300 / 800) = -0.245 kJ/K.

The entropy change of this rivet is  -0.245 kJ/K.

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In this activity, you'll explain why conciseness and clarity are important in business writing.

Part A

You'll look at two versions of the same business document. You don't need to read the documents in full. First, look at this

original version of the Minnesota Absentee Ballot Instructions for unregistered voters. Then look at the revised

version of the same document.

Compare the original and revised versions of the document. What changes do you think make the revised version better

than the original document? Write your response in 50 to 100 words.

B

I y X X

Font Sizes

:

를 들를

Characters used: 0/ 15000

Submit

Sign out

Answers

Business writing is used in professional formal settings. For example:

In the communication with customers or potential customers.In the communication with other companies.

In business writing it is expected messages are:

Clear: This means the message is clear and direct. To achieve this use precise words and avoid ambiguity.Concise: This means the message is written using only as many words as necessary. To do this, avoid using very long sentences or adding extra words to sound more "formal".Coherent: This means all the parts of the document are connected logically.

Based on this, clarity and conciseness are important because they make the documents effective.

Note: This question is incomplete because the documents are missing; due to this, I answered it based on general knowledge.

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Give the number of protons (p), neutrons (n), and electrons (e) in one atom of 238U.A) 146 p, 92 n, 92 e D) 146 p, 28 n, 146 eB) 92 p, 92 n, 92 e E) 238 p, 146 n, 238 eC) 92 p, 146 n, 92e

Answers

The correct answer is A) 146 p, 92 n, 92 e. This is because the atomic number of uranium (U) is 92, which means it has 92 protons in its nucleus.

The atomic mass of uranium is 238, which means it has a total of 238 particles in its nucleus. To find the number of neutrons, you subtract the atomic number (92) from the atomic mass (238), giving you 146 neutrons. Finally, because the atom is neutral (has no overall charge), it must have the same number of electrons as protons, so there are also 92 electrons in one atom of 238U.

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Before hoop skirts, women who wanted their gowns to feature large skirts wore many heavy layers of a material called crinoline, which was made from thread and what other material?.

Answers

Answer:

Horsehair, cotton, or linen

Explanation:

which statement is true of simple machines

They cannot change the direction in which you apply a force.


They cannot change the amount of work done.


They cannot change the distance over which you apply the force.


They cannot make work easier.

Answers

Answer:

a

Explanation:

i took the test

Answer:

It is 100% B

Explanation:

I just took the test and it was right I promise

if air starts out with a temperature of 18°c with a dew point of 10°c, an ascent of ________ is necessary for the air to become saturated.

Answers

The air needs to rise by 800 meters to cool down to its dew point temperature of 10°C, at which point it will become fully saturated with water vapor.

If air starts out with a temperature of 18°C and a dew point of 10°C, it means that the air is not fully saturated with water vapor. In order for the air to become saturated, it needs to cool down further until it reaches its dew point temperature. The difference between the temperature and dew point is known as the dew point depression.

To calculate the ascent necessary for the air to become saturated, we need to use the concept of adiabatic cooling. Adiabatic cooling refers to the cooling of air as it rises and expands due to a decrease in atmospheric pressure. The rate at which air cools with altitude is known as the adiabatic lapse rate.

The adiabatic lapse rate for unsaturated air is approximately 10°C per 1000 meters of ascent. Therefore, if the air temperature is 18°C and the dew point is 10°C, the ascent necessary for the air to become saturated is around 800 meters. This means that the air needs to rise by 800 meters to cool down to its dew point temperature of 10°C, at which point it will become fully saturated with water vapor.

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which has the greatest inertia

A. Jumbo Jet
B. Bird
C. Car​

Answers

Answer:C car

Explanation:

two passenger trains run on parallel tracks. the first at 72 km/h, the second at 90 km/h. A passenger on the first train finds that the carriages of the second train are passing by for 5 seconds. A passenger on the second train finds that it passes the first train in 7. 8 seconds. How long are the two trains.

Answers

The length of the two trains is determined as 281 m.

What is the distance travelled by each of the trains?

The distance travelled by each train is calculated as follows;

distance travelled by the first train = vt

where;

v is the speed of the traint is the time of motion of the train

speed of the first train = 72 km/h = 20 m/s

distance travelled by the first train = 20 m/s  x  7.8 s = 156 m

speed of the second train = 90 km/h = 25 m/s

The distance travelled by the second train = 25 m/s  x  5 s = 125 m

The length of the two trains = 156 m + 125 m = 281 m

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Three-fourths of the elements on the
periodic table are:

a. Metals

b. Nonmetals

c. metalloids

Answers

Answer:

b

Explanation:

because the metalloids are the thing in the middle

Can a physical quantity have units but still be dimensionless?

Answers

Answer:

yes

Explanation:

there are other quantities that are dimensionless, but have a unit.

For example, radian is the unit for an angle. But it is dimensionless because it is defined to be the ratio of two lengths.,

a dimensionless quantity will always be independent of the base units — meter, second, kilograms, kelvin, candela, moles, ampere.

Other examples:

1. Mass fraction

2.Mole fraction

both have unit (kg/kg)

Answer:

A quantity that has dimensions must have units. Yes a quantity have units but still be dimensionless for example,unit of angle is radian ,but it is a dimensionless quantity. A dimensionless quantity may have unit. ... A unitless quantity never has a non-zero dimension.

I hope it's helpful!

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