michael's scale measures the mass of objects as consistently 2kg less than their actual mass. how would you describe the scale? group of answer choices

The tangential speed, v, must the bob have so that it moves in a horizontal circle with the string always maintaining an angle θ from the vertical is √mgLsinθtanθ.

Given the mass of bob = m

length of string = L

The angle the string of pendulum makes with cone =  θ

The tangential speed the bob moves = v

the vertical component of tension must support the weight of the bob which is represented as: Tcosθ = mg where g is acceleration due to gravity.

the horizontal component of tension must equal the centripetal force acting on the bob which is: Tsinθ = v^2/r where r is the radius of orbit.

However, we know that, r = Lsin(θ) then Tsinθ = v^2/Lsin(θ)

Then Tsinθ/Tcosθ = v^2/(mg x Lsin(θ))

tanθ = v^2/mgLsinθ

then v = √mgLsinθtanθ

Hence the tangential speed the bob moves with is √mgLsinθtanθ

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The Coriolis effect describes the deflection pattern experienced by an object that is not firmly anchored to the ground as it travels long distances around the Earth. Many large-scale weather patterns are caused by the Coriolis effect.

The rotation of the Earth is important for the Coriolis effect. In particular, the Earth rotates faster at the equator than at the poles. Because the Earth is wider at the equator, the equatorial region must travel about 1,000 kilometers (1,000 miles) per hour to make one revolution of her in 24 hours. The Earth rotates slowly near the poles at 0.00008 kilometers (0.00005 miles) per hour. If you play catch anywhere in the northern hemisphere, the ball will curve to the right.

Apparent deflection is due to the Coriolis effect.

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By performing a physics demonstration in front of the students. F is 9.79 x 108 newtons.

Given,

Mr. Gewanter weighs 60 kilograms (kg).

The weight of Martha is 55 kg.

d = 1.5 meters separates them.

The equation F = GMm/d2 newton determines the gravitational force between them.

changing the given values in the equation above

F = (6.673 x 1011 x 60 x 55)/1.52 = 9.79 x 108 newtons.

As a result, F = 9.79 x 108 newton is the gravitational pull Mr. Gewanter has on Martha.

A geostationary satellite travels in a circular path around the planet with a 36,000 km radius. The orbital period of a spy satellite will then be roughly (Re = 6400 km), orbiting a few hundred kilometers above the surface of the planet.

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A boat can move at 30 km/h in still water, so to move 12 km upstream in a river flowing 6.0 km/h, it will take 20 minutes.

Water is referred to as still water when its motion is zero, or when it is still. Motionless water is defined as water that remains still, not flowing, and has no current, such as in rivers and streams. Therefore, a boat's relative speed on calm water is equal to 12 (a + b) km/hr. The stream is moving at a pace of 1/2 (a - b) km/hr.

Moving upstream, or against the flow of water, refers to a boat  going against the current. The distinction when speaking about water in rivers and streams is that upstream is in opposition to the water flow and in the direction of the water's original source (where the river originates).

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The work done in case a) is positive, in case b) is negative and in case c) is positive.

Work is said to be done when the displacement is occur in the direction of the applied force.  

W = F×d×cosθ

Where F is the force, d is the displacement and θ is the angle between the displacement and the direction of the force.

In case a) as the work is done against the direction of the gravity so the work is positive. In case b) the weight of the buckets acts in downwards direction, that is the direction of the acceleration due to gravity. So the work is negative. In case c) the bucket were lowered, it means the displacement is in the direction of the applied force. Hence the work done is positive.

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The position of the point charge q can be placed such that the net electrostatic force is -1.857 m.

To find the position where the net electrostatic force on the charge q is zero, we need to apply Coulomb's Law. Coulomb's law states that the electrostatic force between two charges is proportional to the product of the charges and inversely proportional to the square of the charges. distance between them.

In this case, we have two charges Q1 and Q2 at known positions and we need to find the position of the third charge q such that the net force is zero.

By equating the force due to Q1 with the force due to Q2, we can solve for the position of q. Changing the sign of Q2 changes the direction of the force on q and changes the position of q.

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The question is -

An electric point charge of Q1 = 7.43 nC is placed at the origin of the real axis. Another point charge of Q2 = 1.21 nC is placed at a position of p = 3.95 m on the real axis. At which position can a third point charge of q = -1.99 nC be placed so that the net electrostatic force on it is zero? Let the sign of Q2 be changed from positive to negative. At which position can the point charge q be placed now so that the net electrostatic force on it is zero?

a. The acceleration of the object is calculated to be 6.36 m/s².

b. During the first 11 seconds, the object travels 385 m.  

c. The average velocity of the object during the first 11 seconds is 70 m/s.

d. The final velocity is 31.8 m/s.

e. The object's displacement at this time is 79.5 m.

Speed of the object = 70 m/s  

Time = 11 sec

The acceleration of the object is described to be the rate of change of speed.

So, acceleration = 70/11= 6.36 m/s²

From the equations of motion, we know, s = ut + 1/2 a t²

As, u = 0 here, s = 1/2 a t²

s = 1/2 (70/11) 11² = 385 m

The following formula is used to determine the object's initial displacement,

s₀ = ut

s₀ = 0

After the first 11 seconds, the object's displacement is determined as follows,

s₁ = v t

s₁ = 70 × 11 = 770 m

The object's average velocity is computed as follows:

v = (s₁ - s₀)/t = (770-0)/11 = 70 m/s

Hence, the average velocity of the object is 70 m/s.

Relation between initial, final velocity, acceleration is

v = u + a t

v = 0 + 6.36 × 5 = 31.8 m/s

To find displacement, let us use the equation, v² - u² = 2 a s

Making s as subject, we have, s = (v² - u²)/2 a = (31.8² - 0)/(2 × 6.36) = 79.5 m

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1.1.1: The force, which is 61.4 N and inclined at a 34.4° angle to the horizontal,

1.1.2: The resultant force is 30.8° inclined to the horizontal and is 66.9 N in magnitude.

How does vector addition work?

The process of adding vectors together to determine the resulting force is known as vector addition.

Vector addition is the theory that was applied in this question

The steps involved in adding vectors are as follows:

First, use the two provided vectors and the resulting vector to scale up a vector diagram.

Step 2: Apply the Pythagorean theorem to determine the magnitude of each vector.

Calculate each vector's angle with respect to the horizontal in step three.

4th step: Apply the  Use the law of cosines to find the magnitude of the resultant vector

Step 5: Use the law of sines to find the angle of the resultant vector with respect to the horizontal.

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A dropped ball is given if the ball hits the referee or another match official and goes into the goal, team possession changes, or a potential attack or a promising offensive begins.

The note of the following additional modifications to the dropped ball procedure The ball will be dropped for the goalie if play is stopped inside the penalty area. If the game is stopped outside of the penalty area, one player from the team that last touched the ball at the last touch will receive the ball. All other players from both teams must always be at least 4 metres or  4.5 yards away.

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Barometric column, barometer column, etc. mercury barometer: a device that uses a mercury column to measure the height of the column (in inches of mercury) to determine atmospheric pressure.

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The force exerted by the biceps and the elbow is 239.9 N and 215.89 N respectively.

When we use only your forearms to lift an object, assume that your biceps are the main muscle that lifts your arm. Suppose the weight of the forearm he is 1.50 kg. If the biceps is attached to the forearm 2.50cm from the elbow, with the forearm parallel to the floor, flex the biceps to hold a 950g ball on the end of the elbow at a distance of 36.0cm from the elbow.

Against this background,

forearm mass = 1.50 kg

forearm length = 2.50 cm

The weight of the ball is 950 g.

36.0 cm ball spacing

Forearm strength needs to be calculated. Balance Elbow Using

Torque,

Fb x Db = Wf x Df/2 + Wball x Dball

Putting Value,

Fb x .025 = 1.5 x 9.8 x .36/2 + 0

95 x 9.8 x 0.36

Fb = 239.9 N

Now elbow force,

Fb = Fl + Wf + Wb

Fl = Fb - Wf - Wb

Putting value,

Fl = 239 .9 - (1.5 x 9.8 ) - (0.95×9.8)

Fl = 215.89 N.

Therefore the force on the elbow is 215.89 N.

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The magnitude of the electric field (in V/m) in the region between the plates is 20.35x10^5V/m.

Given the distance between the plates (d) = 1.4cm = 1.4x10^-2m

The potential difference across the plates is (V)  = 28.5kV = 28.5x10^3V

The electric field between two parallel conducting plates is dependent on the voltage or potential difference between the two plates as well as their separation from one another. The two charged parallel plates would carry their total charges since an electric insulator separates them. Because the two parallel charged plates are kept apart from one another, a homogenous electric field is created there.

According to Coulombs law E = V/d such that

E = 28.5x10^3V/1.4x10^-2m = 20.35x10^5V/m

Hence the required magnitude of the electric field is 20.35x10^5V/m

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The smallest value of resistance that we can measure is 74 Ω(ohm), if the maximum power supply is 500 ma and the supply voltage is 37 V.

According to Ohm's law, the current in a conductor is directly proportional to the potential difference between its two ends. In other words, the ratio of the potential difference(V) and the electric current(I) is a constant in a conductor. This constant is called "resistance(R)". its unit is Ω(ohm). Mathematically,

V = IR

R = V/I

The maximum current, I = 500 ma = 500 × 10⁻³ A

Voltage supply, V = 37 Volts

R = 37/ (500 × 10⁻³) = 74 Ω

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Answer:

The mass has gained a height of 5 meters.

Explanation:

To calculate the height gained by a 2kg mass when 100J of gravitational energy is transferred to it, we can use the equation:Height (h) = Gravitational Potential Energy (GPE) / Weight (w)where GPE = mgh (mass x acceleration due to gravity x height)Therefore,h = (100 J) / (2 kg x 10 N/kg)h = 5 metersThe mass has gained a height of 5 meters.

The directions she gives are as follows: 1. Move 400 meters to the northwest. 3. The wealth is hidden there, 700 meters to the east-southeast.

Change inside an object's position in relation to a reference frame is known as displacement. For instance, a billiards ball moves of one spot to another when one player strikes it. It is alleged to have moved. A vector quantity with both size and direction is displacement.

The spacing between two specified points is represented by the one-dimensional quantity of displacement (symbolized as d or s), commonly known as length or distance. The meter serves as the standard displacement unit in the International Unit System (SI) (m).

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The moment (in KN-m) produced by the force about an axis in the direction of i+j+k (from the origin) if a force of 5 KN to a wall is 5 (cos θ + sin θ)

That is called torque when we calculate its moment of force. Torque is а meаsure of the force thаt cаn cаuse аn object to rotаte аbout аn аxis. Just аs force is whаt cаuses аn object to аccelerаte in lineаr kinemаtics, torque is whаt cаuses аn object to аcquire аngulаr аccelerаtion.

We are given:

Force = 5 KN

Horizontal Component i = [tex]F_{x}[/tex] = 5 cos θ

Vertical Component j =  [tex]F_{y}[/tex] = 5 sin θ

x component of the moment (in kN-m):  

M = [tex]F_{x}[/tex] × d

= 5 cos θ × d (kN - m)

d is the distance of the force form origin.

Force about an axis in the direction of i + j + k:

=  [tex]F_{x}[/tex] +  [tex]F_{y}[/tex] +  [tex]F_{z}[/tex]

= 5 cos θ + 5 sin θ + 0

= 5 (cos θ + sin θ)

Your question is incomplete, but most probably your full question can be seen in the Attachment.

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The amount of time taken in seconds for the bulb to transfer 300 J of energy into light energy is 37.5 seconds. (300 J / ( 12 W * 0.8))

The efficiency of a lightbulb is a measure of how much of the energy it consumes is converted into light energy, and how much is wasted as heat. A lightbulb with a higher efficiency will convert a greater proportion of the energy it consumes into light energy, and will therefore produce more light for the same amount of energy consumed. Conversely, a lightbulb with a lower efficiency will convert a smaller proportion of the energy it consumes into light energy, and will therefore produce less light for the same amount of energy consumed. The efficiency of a lightbulb is usually represented as a percentage, with 100% indicating that all the energy consumed is converted into light energy, and 0% indicating that none of the energy consumed is converted into light energy.

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The amount of time taken in seconds for the bulb to transfer 300 J of energy into light energy is 37.5 seconds.

Power = 12W

Efficiency = 80%

Energy = 300 J

Time taken =   (300 J / ( 12 W * 0.8))

                                  = 37.5 seconds

The efficiency of a lightbulb is a measure of how much of the energy it consumes is converted into light energy, and how much is wasted as heat. A lightbulb with a higher efficiency will convert a greater proportion of the energy it consumes into light energy, and will therefore produce more light for the same amount of energy consumed.

Conversely, a lightbulb with a lower efficiency will convert a smaller proportion of the energy it consumes into light energy, and will therefore produce less light for the same amount of energy consumed. The efficiency of a lightbulb is usually represented as a percentage, with 100% indicating that all the energy consumed is converted into light energy, and 0% indicating that none of the energy consumed is converted into light energy.

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The car A will hit the car B during the reaction time of 0.5 seconds, and the distance the car will travel during the reaction time is 13.5 meters.

Reaction time is the time taken by the driver between seeing the scenario in front of his/her eye and the instant of applying the break. It is derived by the PIEV theory. The PIEV theory includes the time durations which drivers see, recognize, analyze and react to apply the brake for avoiding objects on the roads. The PIEV time on highway design engineering is taken as 2.5 seconds.

Given the speed of the car A is 27 m/s

Reaction time = 0.5 sec

Distance travelled, d = 27 × 0.5 = 13.5 meters

As the distance travelled by the car A is more than the distance between car A and car B, so the car will surely hit the car B.

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The statement which correctly describes the all of these given blood cell types is option C. They perform functions that air in maintaining homeostasis.

Any self-regulating mechanism called homeostasis helps biological systems to maintain stability while responding to environmental factors that are best for survival. If homeostasis is achieved, life goes on; if it is not, catastrophe or death result.

The stability obtained is actually a dynamic equilibrium, where circumstances are mostly uniform yet change is constant. All the bodily systems must be in a condition of equilibrium for the body to live and work properly.

When the body is in homeostasis, its levels of acid, blood pressure, blood sugar, electrolytes, energy, hormones, oxygen, proteins, and temperature are maintained at a normal level by being continually adjusted in response to changes both inside and outside the body. Hence, option C is correct.

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The final velocity of the combined mass of the fullback and the two linebackers is 4.09 m/s.

To find the velocity of the combined mass of the fullback and the two linebackers, we need to use the principle of conservation of momentum. This principle states that the total momentum of an isolated system remains constant if no external forces act on it.

First, we need to find the initial momentum of the fullback by multiplying his mass (90 kg) by his velocity (5.0 m/s):

Initial momentum of fullback = 90 kg * 5.0 m/s = 450 kg m/s

Next, we need to find the initial momentum of the two linebackers by multiplying each of their masses by their velocities:

Initial momentum of first linebacker = 73 kg * 3.0 m/s = 219 kg m/s

Initial momentum of second linebacker = 73 kg * 4.0 m/s = 292 kg m/s

Now, we need to add the initial momentum of the three individuals to find the total initial momentum:

Total initial momentum = 450 kg m/s + 219 kg m/s + 292 kg m/s = 961 kg m/s

Since the final velocity of the combined mass is going to be the same as the initial momentum, we can say:

Final velocity = 961 kg m/s / (90 kg + 73 kg + 73 kg) = 961 kg m/s / 236 kg = 4.09 m/s

Therefore, the final velocity of the combined mass of the fullback and the two linebackers is 4.09 m/s.

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Answer:

671,3 Newtons

Explanation:

Fg=mass×g

No, it doesn't seem like the distribution is normal. A data set must (when graphed) follow a bell-shaped, symmetrical curve that is centered around the mean in order to be regarded as having a normal distribution.

The best way to determine whether a frequency distribution looks to have a normal distribution is to look at a histogram. Plot a histogram and study the bar shapes. The distribution is generally regularly distributed if the bars have the shape of a bell or a hill, as in the figure below. A theoretical continuous, symmetrical bell-shaped distribution function represents a normal frequency distribution. The bell curve's mean, mode, and median are all the same, and both of its tails are indefinitely long.

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complete question: Does the frequency distribution appear to have a normal distribution using a strict interpretation of the relevant criteria. Temperature ​(degrees​F) 35 - 39, 40 - 44, 45 - 49, 50 - 54, 55 - 59, 60 - 64, 65 - 9 frequency 3, 0, 6, 12, 8, 6, 1.

(a) No, the distribution does not appear to be normal.

(b) Yes, all the requirements are met.

(c) No, the frequencies do not decrease from the maximum frequency to a low frequency.

Answer:

Option C.   10 m/s²

Explanation:

First we need to find the mass of the object.

We can use Newton's second law to evaluate the mass of the object.

Newton's second law says that the net force of is equal to the mass times it acceleration.

[tex]F_{net} =ma[/tex]

Lets solve for [tex]m[/tex].

Divide each side by [tex]a[/tex].

[tex]m=\frac{F_{net} }{a}[/tex]

We are given

[tex]F_{net} =45\\a=5[/tex]

Lets evaluate [tex]m[/tex].

[tex]m=\frac{45}{5}[/tex]

[tex]m=9[/tex]

Now we can find the object's acceleration if the force doubles.

[tex]F_{net} =ma[/tex]

Lets solve for [tex]a[/tex].

Divide each side by [tex]m[/tex].

[tex]a=\frac{F_{net} }{m}[/tex]

Doubling the force of 45 N leaves us with a force of 90 N.

[tex]a=\frac{90}{9}[/tex]

[tex]a=10[/tex]

We can see that the object's acceleration is directly proportional to the net force and inversely proportional to the object's mass.

Despite being several streets away from the rail yard, the current downtown noise level is 70 dB. The people is given assurances by the mayor that they will see a difference.

The power carried via sound per unit area inside a perpendicular direction to the that region is known as sound intensity or acoustic intensity. A watt every square meter (W/m2) is indeed the SI unit for intensity, which also covers sound intensity.

The following equation can be used to calculate sound intensity: I=Δp22ρvw. p stands for pressure change or amplitude. is the density of the substance through which the sound is moving, and vw is the sound's measured speed. The more intense the acoustic waves oscillation, the bigger.

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You may calculate the average load current—the average diode current—by dividing the average load voltage by the average load resistance.

Vavg = 15.45 V

Diode conduction is 7.11 percent.

Iavg = 0.232 A

Ip = 0.449 A

Case (ii) (ii)

Vavg = 16.18 V

Diode conduction is 2.25 percent.

Iavg = 0.735 A

Ip = 1.453 A

The transformer's secondary side has a voltage of

= Vpri/turn ratio

Vrms = 120/10 = 12 V

Peak voltage and rms voltage have the following relationship:

Vp = Vrms / 2.

Vp = 12√2 = 16.97 V

Vd = 0.7 V

We will first determine all the necessary variables for the ripple voltage of 10%, and then for the ripple voltage of 1%.

10% of the highest output in scenario I

What average output voltage is produced?

Vavg = Vp - Vd - 0.5Vr is the average output voltage.

Vp is the maximum output voltage.

Diode voltage drop is denoted by Vd, while ripple voltage is denoted by Vr, which is expressed as a percentage of Vp.

Vavg = 0.5Vr + Vp - Vd

Vavg = 16.97 - 0.7 - 0.5[0.1(16.97 - 0.7)]

Vavg = 15.45 V

(b) The diode conducts what percentage of the cycle?

= Vd - 2Vr/Vp

Vp- Vd = 2*0.1 (Vp-Vd)/Vp

ω = √2*0.1(16.97-0.7)/16.97 - 0.7

ω = 0.447 rad

Diode conductance equals (/2)*100

Diode conductance is (0.447/2)*100

Diode conduction is 7.11 percent.

The typical diode current is (c).

Iavg = Vavg/R[1 + (2(Vp - Vd)/0.1(Vp-Vd))] is the formula for average current.

Average current is equal to Iavg, which is 15.45/1000[1 + (2(16.97 - 0.7)/0.1(16.97-0.7)]

Iavg, or average current, is 0.232 A.

(d) How much diode current peaks at?

Peak current is defined as Ip = Vavg/R[1 + 2(2(Vp - Vd)/0.1(Vp-Vd)]

Peak current is expressed as Ip = 15.45/1000[1 + 2](2(16.97 - 0.7)/0.1(16.97-0.7)]

Peak current is 0.449 A, or Ip.

What average output voltage is produced?

Vavg = 16.97 - 0.7 - 0.5[0.01(16.97 - 0.7)]

Vavg = 16.18 V

(b) The diode conducts what percentage of the cycle?

Vp - Vd = 2*0.01(Vp-Vd)

ω = √2*0.01(16.97-0.7)/16.97 - 0.7

ω = 0.1417 rad

Diode conductance is (0.1417/2)*100

Diode conduction is 2.25 percent.

The typical diode current is (c).

Average current is equal to Iavg, which is 16.18/1000[1 + (2(16.97 - 0.7)/0.01(16.97-0.7)]].

Average current is 0.735 A (Iavg).

(d) How much diode current peaks at?

Peak current is expressed as Ip = 16.18/1000[1 + 2](2(16.97 - 0.7)/0.01(16.97-0.7)]

Peak current is 1.453 A, or Ip.

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Atoms join to form chemical groups called molecules, which in turn join to form compounds.

A molecule is a group of two or more atoms that are chemically bonded together. The bonding is achieved through the sharing or exchange of electrons between the atoms. The atoms in a molecule can be the same or different elements and can be arranged in various ways to form different types of molecules.

Molecules can be either simple or complex, depending on the number of atoms and the types of chemical bonds that hold the atoms together. Simple molecules, such as H2 and O2, are composed of only a few atoms, while complex molecules, such as proteins and DNA, can contain hundreds or even thousands of atoms.

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Answer: 3

Explanation: i think

Your average velocity for the journey has been 94.57 km/h.

The average velocity of an object is the ratio of total displacement to the total time of motion of an object.

V = ( total displacement ) / ( total time )

The total displacement of your journey is calculated as;

x = 485 km - 154 km

x = 331 km

The total time of the motion is calculated as;

t = 4:30 - 1:00 = 3:30 = 3.5 hours

v = x / t

v = ( 331 km ) / ( 3.5 hr )

v = 94.57 km/h

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The average velocity is 47.96 mi/h with which Jason can drive

on average.

Well, there are many ways to calculate the average velocity, but the most complete one would be the following.

With the equations of Uniform Rectelinear Movement we can obtain the distance Jason has driven. We will use the same equation for each step.

where x is the position,  is the initial position (which we can pick as zero to simplify), v is the velocity, t is time and  is the initial time (also picked as zero). In order to get the right answer we must use the same units, so we will change the minutes to hours, where 30 minutes are half an hour and 12 minutes are 0.2 hours

So, the distance will be Now that we have the partial distances, we use the formula for average velocity which is where  is the final position (the sum of the distances) and  is the total time Jason took.

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The index of refraction of gas will be 1.008 units.

The number of wavelengths originally in the cylinder is m1 = 2L/λ when light is counted in both directions.

It transforms into m2 = 2L/λ/n gas.

= 2ngasL/λ​

As the cylinder is filled with gas,

If N is the number of bright fringes passing,

N = m2 - m1

= 2L/λ (ngas - 1) or,

The index of refraction of the gas is,

ngas =1 + Nλ/2L = 1+ (221)(502 x 10⁻⁹ m)/2(3.99 x 10⁻²)

= 1.008 units

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