A ball is rolled horizontally off the top of a table. After 3 seconds the ball lands on the ground with a final velocity of −3.5 m/s. Which kinematic equation would be most useful for finding the ball’s initial velocity? (Assume a= −9.8 m/s2)

Answers

Answer 1

The following kinematic equation will be most useful for finding the ball’s initial velocity:

v = u + at

There are three kinematic equations, out of which any one equation can be used according to the given situation. These are:

v = u+atv² -u² = 2ass = ut + 1/2at²

In the above situation, a ball is rolled from the top of a table and the ball lands on the ground after 3 seconds with a final velocity of 3.5 m/s.

We have been provided by the final velocity, acceleration, and time taken by the ball, so the equation that would be most useful for finding the initial velocity will be, v =u +at.

Thus, the following kinematic equation will be most useful for finding the ball’s initial velocity:

v = u + at

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Related Questions

The energy associated with swinging a bat is a type of kinetic energy.
a. true
b. false

Answers

Option a) True, the energy associated with swinging a bat is a type of kinetic energy.

What is kinetic energy?

In the terms of physics, the energy that a body or a particle possesses due to its motion is said to the kinetic motion.

It is also defined as the work that is required in order to accelerate a body from rest to the stated velocity.

If work is done on an object by applying a net force on the body of that object, the speed of the object changes and it thereby gains kinetic energy.

The body after gaining this energy tries to maintain it until and unless its speed changes.

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Car drives uphill at 40 km/h and then back downhill at 60 km/h. what is the average speed for the round trip?

Answers

Answer:

48 km/hr

Explanation:

These are often calculated incorrectly because TIME is ignored

time = distance / rate

               uphill =  d / 40       downhill = d/60

average rate =   distance / time

                      =   2d / ( d/40 + d/60)              2d is uphill + downhill

                        = 2 / ( 1/40 + 1/60 ) =   48 km/hr

If an astronaut goes on a space walk outside the space station, she will quickly float away from the station unless she has a tether holding her to the station. True or false?.

Answers

Answer:

True

Explanation:

Very simple, if the tether aint holding her, what is?

A charge q is located at the origin (0,0). the electric field at (x,y) is given (in terms of its components) by:__________

Answers

A charge q is located at the origin (0,0). the electric field at (x,y) is given (in terms of its components) by E1i^+E2j^+E3k^.

The size of the electric field produced by a point charge Q is determined by this equation. The distance r in the denominator is the separation between the point of interest and the point charge, Q, or the center of a spherical charge. Positive charge is moving in the opposite direction, toward a negative charge. Q1 will produce an E-field vector that points left at the origin, and Q2 will produce an E-field vector that points right. The electric force F, or Coulomb force, exerted per unit positive electric charge q at that place can be used to determine an electric field's strength, or E = F/q.

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How many coulombs of positive charge are there in 1. 21 kg of plutonium, given that its atomic mass is 244 and each plutonium atom has 94 protons?

Answers

By Avogadro's number, the positive charge of plutonium is 4.5 x 10⁸ C.

We need to know about Avogadro's number to solve this problem. Avogadro's number is the number that explains how many atoms are in one mol. The Avogadro's number is

Na =  6,02 × 10²³ atoms / mol

From the question above, we know that

m = 1.21 kg = 1210 g

Ar = 244

λ = 94 protons/atom

By using Avogadro's number, we can calculate how many plutonium atoms

N = Na . n

N = 6,02 × 10²³ x gr/Mr

N = 6,02 × 10²³ x 1210/244

N = 3.01 x 10²⁵ atoms

Find the protons

protons = λ . N

protons = 94 . 3.01 x 10²⁵

protons = 2.83 x 10²⁷

Each proton has a charge 1.6 x 10¯¹⁹ C. Hence, the positive charge of plutonium is

Q = 2.83 x 10²⁷ . 1.6 x 10¯¹⁹ C

Q = 4.5 x 10⁸ C

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A powerful motorcycle can accelerate from rest to 29.2 m/s in only 3.9 s. What is its average acceleration in meters per second squared?

Answers

56 meters have been determined as the distance traveled.

s-displacement, u-initial velocity, v-final velocity, a-acceleration, and t-time variables are equal to v=u + at and v2 = u2 + 2ass, respectively.

The motorcycle's values are as follows:

u= 0m/s

v=28m/s

t=4s

a=??

s=??

v=u +at

28= 0 + 4a

4a=28

a= 7m/s2

As a result, the typical acceleration is 7 m/s2.

displacement u2+2as, v2=s

28^2= 0^2+ (2x7s)

784= 14s

s= 784/14

s= 56

Therefore, the journey's distance was 56 meters.

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What is the purpose of preheating the crucible and its cover prior to measuring its mass?

Answers

It is crucial to warm crucibles before use to lessen thermal stress on them.

Crucibles and covers are made up of porcelain that are like ceramic that contains pores in it. Any kind of water molecules from the air gets trapped in the pores of these crucible and cover.

These water molecules need to be driven out before the initial massing of the crucible and cover. The preheating helps to drive out these water molecules from the pores.

What does it mean to pre-heat a crucible?

By raising the crucible’s temperature to 200°C, moisture will be removed in this step. Crucibles are protected from potential moister risk by the moister elimination procedure.

Crucibles that are brand-new or have seen a lengthy pause should be progressively heated to 200°C.

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Which objects are found outside of solar systems but not inside it?

Answers

Exoplanets are found outside of solar systems but not inside it.

What are exoplanets?A planet outside the Solar System is referred to as an exoplanet or extrasolar planet. In 1917, the first potential sign of an exoplanet was observed, but it was not taken seriously. Exoplanets can be found using a variety of techniques. The majority of exoplanets have been discovered using transit photometry and Doppler spectroscopy, but these techniques suffer from a glaring observational bias that favors the discovery of planets close to the star; as a result, 85% of exoplanets discovered are located within the tidal locking zone. Multiple planets have been seen around a star in many instances. There is a "Earth-sized" planet in the habitable zone for about 1 in 5 Sun-like stars.

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A rock is dropped from a 134-m-high cliff. how long does it take to fall (a) the first 67.0 m and (b) the second 67.0 m?

Answers

The time taken by the rock to travel another 67m is 1.5 s.

Briefing :

Taking +y direction downward and y₀= 0, we have y = V₀t+1/2 gt², which (with V₀≠0) yields t= [tex]\sqrt{\frac{2y}{g(a)} }[/tex]

(a) For this part of motion, y₁ = 67m, so that

                           t₁ = [tex]\sqrt{\frac{2(67)}{9.8 m/s^{2} } }[/tex] = 3.7 s

(b) For this next part of motion. we note that the total displacement is

                      y₂= 134m

Therefore, the total time is t₂ = [tex]\sqrt{\frac{2(134)}{9.8m/s^{2} } }[/tex] = 5.2 s

The difference between this and the answer to part (a) is the time required to fall through that second 67m distance:

Δt = t₂-t₁ = 5.2s - 3.7s = 1.5s

Therefore the time taken by the rock to travel another 67m is 1.5 s.

Gravity causes a body to descend faster, and as it does, the air resistance that slows it down rises. This keeps happening until the weight of the object and the force of air resistance are equal.

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Wich part of the mind uses conscious-making to find a compromise between the id and the superego

Answers

The Id

The id, according to Freud, is the main element of personality because it is the source of all psychic energy.

The only aspect of personality that is present from birth is the id.

This element of personality, which consists of innate and primordial behaviors, is essentially unconscious.

The pleasure principle, which aims for instant fulfillment of all needs, wants, and desires, is what motivates the id.

A condition of tension or anxiety results if these demands are not met right away. An increase in hunger or thirst, for instance, should prompt a prompt attempt to eat or drink.

Early in life, the id is crucial since it guarantees that an infant's wants are addressed. if the infant is uneasy or hungry.

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According to the newton's law of viscosity, the proportional constant that satisfies the relation between the shear strain rate and the velocity gradient is the _____. multiple choice question.

Answers

According to the newton's law of viscosity, the proportional constant that satisfies the relation between the shear strain rate and the velocity gradient is the Viscosity coefficient.

What is Viscosity coefficient ?

The fluid's resistance to flowing is measured by the coefficient of viscosity. The viscosity of a gas is often lower than that of a liquid. Fluidity is the opposite of viscosity. A liquid with a high viscosity thus has a poor fluidity. There are two forms of viscosity that are frequently used: dynamic viscosity and kinematic viscosity. Dynamic viscosity and kinematic viscosity are connected by the equation dynamic viscosity = kinematic viscosity, where is the density of the fluid. Centipoise is the definition of dynamic viscosity. Kinematic viscosity is measured in centistoke, whereas fluid density is measured in g/cc. One centistoke is determined by dividing one centipoise by one g/cc. Darcy's law uses dynamic viscosity to determine the rate of fluid flow in porous material.

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A fan blows the air and gives it kinetic energy. an hour after the fan has been turned off, what has happened to the kinetic energy of the air?

Answers

A fan blows the air and gives it kinetic energy, an hour after the fan has been turned off, the kinetic energy turns into thermal energy.

The fact that all energy is conserved causes a heat flow, which raises internal (or thermal) energy, as the air molecules slow and lose kinetic energy.

Kinetic energy, which may be seen in the movement of an object, particle, or group of particles, is the energy of motion. Any moving item uses kinetic energy, such as a person walking, a baseball being thrown, a piece of food falling from a table, or a charged particle in an electric field.

The energy of a body in motion, or kinetic energy (KE), is essentially the energy of all moving objects. Along with potential energy, which is the stored energy present in objects at rest, it is one of the two primary types of energy.

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This pie chart shows several ways that the United States made electricity in 2009. The chart shows that

Answers

The correct answer is Sustainability.

Sustainability is the main issue when evaluating energy sources for future generations.

Sustainable development is used to fulfill present demands without compromising the capacity of future generations to meet their own requirements. The assertion is accurate and offers a goal that many people want, but it makes no recommendations or guarantees about how to gauge progress toward sustainable development. Sustainability is frequently used interchangeably with "sustainable development".

The twenty-first century's primary engine of progress is energy. This query does not have the graph displaying the various energy sources, but I will do my best to assist you.

You must keep in mind that when choosing energy sources to reduce environmental deterioration, sustainability is the main consideration for future generations.

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The correct answers are:

The chart shows that (A. coal) was the main source of energy used in power plants.

To understand this chart in terms of climate change, scientists need to find out (B. how much carbon dioxide is emitted by each source).

For future generations, they also need to think about (B. how to maximize the use of clean sources of energy).

Both astronomy and astrology study the stars. which one is considered a natural science? explain your reasoning.

Answers

Astronomy is a branch of natural science since it focuses on the observation and prediction of celestial occurrences using physical rules. Astrology is a branch of natural science since it involves watching and forecasting celestial events and has an impact on both human affairs and the natural world.

What do astrology and astronomy involve ?

Everything in the universe excluding the atmosphere of our planet is covered in the study of astronomy. The Sun, Moon, planets, and stars are examples of celestial objects that humans can view with our unaided eyes. It also includes objects like remote galaxies and tiny particles, which we can only see with the use of telescopes or other devices.

Astrology is a sort of divination that includes predicting events that happen on Earth and in the world of Humans by observing and interpreting the fixed stars, the Sun, the Moon, and the planets.

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A long, straight metal rod has a radius of 5. 00cm and a charge per unit length of 30. 0nC/m. Find the electric field (c) 100cm from the axis of the rod, where distances are measured perpendicular to the rod's axis

Answers

The electric field at 100cm is 5.39 x 10² N/C.

We need to know about the electric field to solve this problem. The electric field is the area affected by electric force. The magnitude of electric field at a distance from long infinite length and constant charge per unit length is given by

E = λ / (2πε₀d)

From the question above, we know that

λ = 30 nC/m

λ = 30 x 10¯⁹ C/m

d = 100 cm = 1 m

By substituting the given parameter, we get

E = λ / (2πε₀d)

E = 30 x 10¯⁹ / (2π . 8.85 x 10¯¹² . 1)

E = 5.39 x 10² N/C

Hence, the electric field at 100cm is 5.39 x 10² N/C.

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A person of weight 80 kg jumped off a platform of height 1 m and safely landed on their feet. what is the magnitude of the momentum change during the collision? give answer in si units.

Answers

The momentum change is 125440 kg.m/s.

We need to know about momentum to solve this problem. Momentum can be defined as the degree of difficulty to stop a moving object. It can be determined by

P = m . v

where P is momentum, m is mass and v is velocity.

Momentum also can be defined by kinetic energy

KE = 1/2 . m . v²

KE = P² / 2m

where KE is kinetic energy

From the question above, we know that:

m = 80 kg

h = 1 m

g = 9.8 m/s²

By conservation of energy, the initial kinetic energy is zero because of the person is in static condition. Hence, the initial momentum is

KEo = Po² / 2m

Po = 0 kgm/s

After the jump, the person will have maximum kinetic energy before landing which can be written

KE = PE

P² / 2m = m . g . h

P² = 2m² . 9.8 . 1

P² = 2.80² . 9.8 . 1

P² = 125440 kg.m/s

The momentum change is

ΔP = P - Po

ΔP = 125440 - 0

ΔP = 125440 kgm/s

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How much heat is required to evaporate 230 lb. of water per hour under a pressure of 111.3 psig, of the water enters the boiler at 190 f?

Answers

Heat required to evaporate the water to steam is 5342 KJ

We know that,

[tex]Q_{t}[/tex] = c * m * ( [tex]T_{f}[/tex] - [tex]T_{i}[/tex] )

where,

[tex]Q_{t}[/tex] = Heat required to raise the temperature

c = Specific heat capacity

m = Mass

[tex]T_{f}[/tex] = Final temperature

[tex]T_{i}[/tex]  = Initial temperature

Given that,

m = 230 lb = 104.33 kg

[tex]T_{i}[/tex]  = 190 F = 87.78 °C

[tex]T_{f}[/tex]  = 100 °C (Because water boils at 100 °C to turn into steam)

c = 4190 J / kg °C

[tex]Q_{t}[/tex] = c * m * ( [tex]T_{f}[/tex] - [tex]T_{i}[/tex] )

    = 4190 * 104.33 * 12.22

[tex]Q_{t}[/tex] = 5341883.79 J = 5342 KJ

Heat is the amount of energy transferred between two bodies

Therefore, Heat required to evaporate the water to steam is 5342 KJ

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What is the molarity of a 10.5 % by mass glucose (c6h12o6) solution? (the density of the solution is 1.03 g/ml .)

Answers

When listening to this issue, add 10.5% by mass glucose solution. We must ascertain the density, modularity, and morality of the answer. Given currently 10.5% by mass glucose solution, 1.3 milliliters.

Calculation

Molarity = 54.50 M

Explanation:

Thus, a 100 g solution would contain 10.5 g of glucose. Therefore, the solvent in this instance has a huge mass and is a solution. That is 100 g less the solute’s mass.

Molarity is defined as the number of moles of a solute in 1 liter of solution. It has mol/l unit.

Molar mass of glucose, C6H12O6 = (6*12) + (1*12) + (16*6)

= 72 + 12 + 96 = 180g/mol

Density of glucose solution = 1.03g/ml

Density in g/l = 1.03g/ml * 1ml/10^-3l

= 1030g/l

10.5% mass of glucose = 10.5/100 * 180

= 18.9g/mol

Molarity = density (g/l)/molar mass (g/mol)

= 1030/18.9

= 54.50 M

Therefore, we arrive at the solution of 54.50M

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The energy required to warm one gram of water by one celsius degree is called a _______

Answers

The energy required to warm one gram of water by one celsius degree is called a specific heat

The specific heat also known as specific heat capacity, is an intensive property specific, and representative of each substance. It is defined as the energy or amount of heat required to raise the temperature of 1 kilogram (kg) of mass by one degree Celsius (°C).  

In the International units system of measurement the specific heat is expressed  in Joules per kilogram per degree Kelvin.

What is temperature?

It is the physical magnitude that allows us to know the degree of heat that a body or an environment has. The higher the temperature, the greater the degree of heat.

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An object is pulled northward with a force of 10 n and southward with a force of 15 n. the magnitude of the net force on the object is:________
a. 0 n.
b. 5 n.
c. 10 n.
d. 15 n.
e. none of these

Answers

The correct option is (b) 5n

A result, the object is being acted upon by a net downward force of 5N.

Briefing :

The force that is produced by summing the vector sums of all the forces acting on an object is known as the resultant force. The effect of the resulting force is the same as the sum of all the acting forces operating on the object. The direction of the forces must be considered when calculating the resulting force.

The northward force is Fn = 10N, given.

Fs = 15N is the southern force.

The net force on the phone is Fnet =?N, which is necessary.

Downward pressure is applied by the object's weight, and upward pressure is applied by upward resistance. The vector sum of these two forces will represent the net force.

Fnet = Fs - Fn (Considering the direction downward as positive)

Fnet = 15N - 10N

Fnet = 5N

There is a net downward force of 5 N acting on the object as a result.

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An object in mechanical equilibrium is an object:________
a. at rest.
b. moving with constant velocity.
c. having no acceleration.
d. all of these

Answers

An object in mechanical equilibrium is an object: a. at rest.

A system is at rest or equilibrium when the sum of all the forces acting on the body or the resultant force of the system is equal to zero (0), therefore, there is an equilibrium between them.

The general formula for calculating the resultant force on an object and determined if it is in mechanical equilibrium is the following:

Fr = ∑F

Where:

Fr = resultant force∑Fr = F1 + F2 + Fn

What is resultant force?

We can say that the resultant force is the algebraic sum of all the forces acting on a body.

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A one dimensional array data is declared as follows: char data[4]; the base address is 2222 and each value takes up one location in memory. what is the address of the fourth element?

Answers

The correct answer for the address of the fourth element will be 2225.

The fourth element will be data -.

So if the data[0] element starts at 2222, and each char element takes 1 byte, then

data[0] starts at 2222

data[1] starts at 2223

data[2] starts at 2224

data[3] starts at 2225

Answer: 2225

A linear data structure that collects elements of the same data type and stores them in contiguous and adjacent memory locations is known as an array. Arrays use an index system that ranges from 0 to (n-1), where n is the array's size.

The array data type is a compound data type represented in the database dictionary by the number 8. Arrays are collections of elements of the same data type that are accessed via an index (attribute) number. The terms array, list, vector, and sequence are all synonymous

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A test rocket at ground level is fired straight up from rest with a net upward acceleration of 20 m/s2. After 4.0 s, the motor turns off, but the rocket continues to coast upward with insignificant air resistance. What maximum elevation does the rocket reach?

Answers

The maximum elevation the rocket will reach is 160 m.

Maximum height attained by the rocket

The maximum height reached by the rocket is calculated as follows;

h = vt + ¹/₂at²

where;

v is the initial velocity of the rocket = 0t is the time of motiona is the acceleration of the rocket

substitute the given parameters and solve for maximum height.

h = 0  +  ¹/₂(20)(4)²

h = 160 m

Thus, the maximum elevation the rocket will reach is 160 m.

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In lecture, it was discussed measurements of mass, temperature, time, volume and length. which of these is not an si base unit (hint - only one)?

Answers

From the options provided in the question, the measurement which is not an SI base unit is volume.

What is SI base unit?

This is referred to as the standard and fundamental unit of measurement of various quantities or variables which is defined arbitrarily and not by combinations of other units.

Volume is a quantity which is derived from the combination of lengths in a  three-dimensional manner which is why the formula is length× breadth×height and the unit is cm³. This is gotten from the combination of the unit of length which is cm.

This is therefore the reason why volume was chosen as the most appropriate choice.

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A random sample of 10 subjects have weights with a standard deviation of 12.3898 kg. what is the variance of their weights? be sure to include the appropriate units with the result.

Answers

Answer:

The variance is 153.507 kg2 for a random sample of 10 subjects that have weights with a standard deviation of 12.3898 kg

Explanation:

Variance is a measure of variation. It is determined by averaging the squared deviations from the mean.

The degree of dispersion in your data collection is indicated by variation. The greater the spread of the data, the greater the variance in proportion to the mean.

The standard deviation is generated from variance and indicates how much each number deviates from the mean on average. The square of the standard deviation gives the formula for variance in this case.

S = σ2

where

s= variance

σ    = standard

s= 12.38982

s= 153.507 kg2

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Explain why the properties of polycrystalline materials are most often isotropic?

Answers

Most polycrystalline materials consist of randomly arranged crystals or "grains." Although individual grains have different orientations and behave anisotropic ally by themselves that's why the properties of polycrystalline materials are most often isotropic.

What are polycrystalline materials?

Polycrystalline materials, or polycrystals, are solids that are made out of numerous crystallites of shifting size and direction. Most materials are polycrystalline, made of countless crystallites kept intact by meager layers of shapeless strong. Most inorganic solids are polycrystalline, including all normal metals, numerous earthenware production, shakes, and ice. The crystallite size can be determined from the full width at half most extreme force (FWHM) estimated on the adjusted diffraction profile. The guideline of crystallite size estimations by x-beam diffraction depends on the way that the Fourier change of various size crystallites shifts contrarily with the size of the crystallite.

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1. Convert the following measurements to the units specified.
2.5 days to seconds

Answers

Answer: 216000

Explanation:

60 seconds in 1 hour

24 hours in a day = 1440

148 hours in 7 days

An electron travels at a speed of 28700 km/s parallel to an electric field of magnitude 12000 n/c. what distance will the electron travel before coming to a stop?

Answers

Answer:

The distance the electron travelled before coming to a stop is 195.19 x 10-13m

Explanation:

Flux in an electric field is given by;

Fe = qE

E= 12000 n/c.

q= 1.602x10-19 (charge of an electron)

Fe = 1.602x10-19c x 12000 n/c.

Fe= 1.92x10-17 N

Since F=ma

M = mass of an electron = 9.11x 10-31

a=?

1.92x10-17 N = 9.11x 10-31 x a

a = 1.92x10-17 N/9.11x 10-31

a = 2.11 x 1013

Given

V2= u2 +2as

Since v= 0 (final velocity is zero)

- u2 = 2as

(28.7)2 = -2 x (2.11 x 1013) x s

823.69 = -4.22 x 1013xs

S = 823.69/ -4.22 x 1013

S = 195.19 x 10-13m

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Tabitha walked a distance of 1.80 km in 30 min. Find her average speed.

Answers

Formula:
distance traveled divided by time taken.

So 1.80 Divided by 30 =  0.06
Tabitha's average speed = 0.06

All Done!

Enter the chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than hbr, e.g. have a smaller ka.

Answers

The chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than HBr is HF

Group 7a that forms binary molecular compounds of Hydrogen are  Halogens such as Iodine I, Bromine Br, Chlorine Cl and Fluorine F. Out of these four HF is the least acidic. This is calculated based on Acid dissociation constant. HF has the least value out of these four, so it is the least acidic.

A  binary molecular compound is a compound that consists of two non metals elements only.

Therefore, the chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than HBr is HF.

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In the case lowe v. california league of professional baseball, lowe was struck in the face by a foul ball after being distracted by a team mascot. in this case:_________ What term describes the pursuit of individualistic goals so as to produce a sense of specialness? a. need for uniqueness b. desire for dominance c. self-righteousness d. arrogance Explain the idea of restorative justice and the possibility of alternatives to incarceration. Fix any punctuation or capitalization error below Based on the details of the scenario, determine what will most likely occur. lincoln has been taking advantage of benson through an unfair contract for several years. eventually, benson seeks relief and legal freedom from his contract. Which of the following presidentswas in office when portions of theNational Park System were sold tolumberjacks?A. Teddy RooseveltB. William TaftC. William McKinleyD. Herbert Hgover Why would there need to be regular adjustments to the range lines between different townships over very large areas such as the states of arizona and nevada? - " ?" Raphael's the school of athens provides the viewer with the illusion of the three-dimensional world on a two-dimensional surface by the use of:_________ Exercise 1 Draw a vertical line between the complete subject and the complete predicate. Label each direct object D.O. and each indirect object I.O. Draw one line under each predicate nominative. Draw two lines under each predicate adjective. Circle each object complement. I.O. D.O.Fred gave Dave a baseball.My cousin Jessica wants a new stereo. A nurse practitioner is assessing the tympanic membrane of a client who has come to the clinic. what would the nurse practitioner expect to visualize if the client has a normal otoscopic evaluation? To make cost allocation easier and less tedious, managers often combine several costs into a(n):________ According to the behavioral perspective, psychological science should be rooted in what? What is the symbol for the element which contains 5 electrons in the neutral state? Different payout policies will attract different types of investors due to the _______. A group of children are playing house sharing the same kitchen and set of dishes. the nurse knows this is an activity exhibited by which age group? A teacher surveys a random group of students about their preference for doing classworkonline or on paper. The results are shown in the table below.STUDENT CLASSWORKPREFERENCEPreferenceOnlinePaperNumber ofStudents178Based on the results, how many students out of 350 will most likely have a preference todo their classwork online?Show your work. A person, place, object, event or concept about which the organization wishes to maintain data is called a(n):_____. A poleward moving (northward moving in the northern hemisphere) ocean current is:_____. Describe at least 3 obstacles/challenges faced by railroad workers