FILL IN THE BLANK The first step you should take to decelerate is to _______.

(a) Angular speed = 1344.8 revs per minute

(b) Centripetal acceleration is equal to 8473.4 m/s2.

Force = 8.4734 10-12N in (c).

(d) The force-to-weight ratio for bacteria is 864.6.

The rate of change in velocity is known as acceleration. Acceleration typically signals a change in speed, though this is not always the case.

(A) Angle speed (w) = volume/radian

d=0.850m, r=0.850m/2, and v=60m/s=0.425m

w = 60/0.425 = 141.2rad/s, which is equal to 141.29.524 rev/min, or 1344.8 rev/min.

(b) Centripetal acceleration is calculated as follows: w2r = 141.2 0.425 = 8473.4 m/s2.

The rate of change in velocity is known as acceleration. Acceleration typically signals a change in speed, though this is not always the case.

(c) Force Equals mass centripetal acceleration, which is 1/1015 8/773.41 = 8.4734/10-12N.

(d) The weight of a bacterium is calculated as follows: mass acceleration due to gravity = 1 10-15 9.8 = 9.8 10-15N

Force to bacteria weight ratio is 8.473410-12N/9.810-15N, or 864.6.

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2.1. The acceleration of the ball immediately after it leaves the girl's hand is -9.8 m/s², directed downwards.

2.2. Yes, the ball is in free fall while it moves downwards. This is because the only force acting on the ball is gravity, which is a constant downward force.

The magnitude of the velocity with which the ball hits the floor can be calculated using the equation v² = u² + 2as, where u is the initial velocity, a is the acceleration, v is the final velocity, and so is the distance traveled. In this case, u = 8 m/s, a = -9.8 m/s², and s = 1.8 m. Plugging these values into the equation, we get v = √ (8² - 2 × (-9.8) × 1.8) = √ (64 + 35.28) = √ (99.28) = 9.96 m/s.The time it takes for the ball to hit the floor can be calculated using the equation t = (v-u)/a, where t is the time, v is the final velocity, a is the acceleration and u is the initial velocity. In this case, v = 9.96 m/s, u = 8 m/s, and a = -9.8 m/s². Plugging these values into the equation, we get t = (9.96 - 8)/-9.8 = 1.97 s.

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A nuclear accident would most likely result in the release of fission products from the containment building, which is designed to contain radiation from a nuclear accident.

Radiation is the emission or transmission of energy in the form of electromagnetic waves (such as gamma rays and X-rays), particles (such as alpha particles and beta particles), or acoustic waves (such as ultrasound). Radiation is a form of energy that is all around us, in the air we breathe, the food and water we consume, and even in our own bodies. Different types of radiation have different properties and effects on living organisms. Types of radiation include ionizing radiation, which can cause cell damage and can be hazardous to living organisms, and non-ionizing radiation, which is generally considered harmless.

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The kinetic energy of the body at 30m above the ground will be 1960 joules.

First, We have to calculate the final velocity when the object is 30m above the ground. We know that :

[tex]v^{2} + u^{2}[/tex]= 2as , where v is the final velocity, u is the initial velocity, s is the displacement and a is the acceleration . Since the body is dropped , the initial velocity will be 0 and a = 9.8m/s (acceleration by gravity), and since the body is 30m above the ground the displacement achieved by it will be 40-30 = 10m

∴ [tex]v ^{2} =[/tex] 2as

⇒[tex]v^{2}[/tex] = 2 x 9.8 x 10

⇒[tex]v^{2}[/tex] = 196

We can directly use this value to find the kinetic energy of the system. We know that kinetic energy is [tex]\frac{1}{2} m v^{2}[/tex].

⇒ 1/2 x 20kg x 196

⇒1960

∴ Kinetic system of the body from 30m above the ground will be 1960 joules

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Geologymagnetic reversals of the earth's magnetic field are when the earth's magnetic poles change direction: False.

Change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged is called a geomagnetic reversal.

During an excursion or a reversal, magnetic field is considerably weakened and allows many cosmic rays to reach the surface of the planet. These energetic particles from space can be damaging to life on Earth if too many of them reach the surface.

Without magnetic field around the Earth, life could not exist on the planet. Solar radiation would strip away the atmosphere.

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The bottle's speed, as a percentage of the ball's incoming speed hence 6.5% Initial=Final  The left side of Initial is and the right side of Final m1v1+m2v2= 0.065

the name's initial letter. initials plural: each word's first letter in a whole name. discovered that they shared the same initials: a capital letter that starts a sentence, paragraph, or division.The ball weighs 0.12 kilogram.

m1= 0.12 kg Ball

m2= 2.4 kg Wooden Bottle

Initial=Final ( no impulse going on) Initial is the left side and Final the right side

m1v1+m2v2= - m1v1+m2v2 (negative the final m1v1 because it goes contrary as it bounces back)

Your equation should look:

0.12kg(v1)+0 (bottle was on rest)= -0.12(0.3)v1+ 2.4kgv2

0.12kgv1 + 0.036v1=2.4kgV2

0.156V1=2.4kgV2

0.065=(v2/v1)

hence 6.5%

Your family is known by your last name. It is also known as "last name." When completing applications, type your last name exactly as it appears on your identity or travel document. Use only full names.

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The correct question is

At the county fair, Chris throws a 0.12kg baseball at a 2.4kg wooden milk bottle, hoping to knock it off its stand and win a prize. The ball bounces straight back at 30% of its incoming speed, knocking the bottle straight forward.

What is the bottle's speed, as a percentage of the ball's incoming speed?

Express your answer using two significant figures.

50 housescould have their full energy needs provided for one year by the turbine above if it continued to operate as described for one year.

Energy is characterized as having the "ability to accomplish work, namely the capacity to apply a force sufficient to move an object." Despite this unclear definition, the concept is actually quite straightforward: energy is simply the force that moves objects.

1 week 10.5MWh

we know,

1 week = 7days.

Enregy produce per day

10.5

E

=

1-day

7

=1.5 MWh

also, 1 year = 365 days.

E1-year

Energy produce by turbine per year is:

= E × 365 days 1-day

=1.5 × 365

=547.5 MWh

E1-house

Energy consumption of 1- house per year:

= 10900 KWH

in MWh

10900

E

-MWh

1- house

103

= 10.9 MWh

Albert Einstein created the equation E = mc2, which typically reads as follows: "When the power of a body functions by such an amount E (regardless of the form the power takes), its mass of the physical change by an equivalent amount to E/c2.

Total numbe of house =

Energy produce by turbine per year Energy consume by 1 houe per year

=

547.5

10.9

=50.229

= 50 houses (appromately)

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The correct question is

If a typical house uses 10,900 kWh per year, calculate how many houses could have their full energy needs provided for one year by the turbine above (the turbine above produces 10.5 MW per week) if it continued to operate as described for one year.

The tension in the chain is the force acting on the child which is 394.76N.

What is tension the chain and calculate it?

The tension in the chain is equal to the force acting on the child in the seat. This force is equal to the child's weight, which is the force of gravity acting on the child's mass.

The weight of an object can be calculated using the formula:

Weight = mass x gravity

where mass is measured in kilograms and gravity is measured in meters per second squared. On Earth, the acceleration due to gravity is approximately 9.8 m/s^2.

So, for a child with a mass of 40.2 kg, the weight would be:

Weight = 40.2 kg x 9.8 m/s^2 = 394.76 N

The tension in the chain is the force acting on the child which is 394.76N. However, it's important to note that this tension is in the direction of the force of gravity, which is downwards.

If the angle of the chain is different from the vertical direction, the tension in the chain will be affected by the angle and the force of gravity.

In this case, you would need the angle to determine the tension in the chain.

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The minimum constant acceleration necessary for the car to stop without hitting the deer is -8420.21 mi/h^2. The negative sign means that the car is deaccelerating.

Consider a particle traveling uniformly in a circle; it experiences acceleration since the motion's direction is changing, but it maintains a constant speed along the tangential axis throughout the motion. Yes, it is feasible to have to change speed and constant acceleration.

The pace at which a distance changes over time is referred to as speed. It has a dimension of time distance. As a result, the fundamental unit of time and the basic unit of distance are combined to form the SI unit of speed. As a result, meters per second is the SI unit of speed.

Given:

Speed = 34.7 mi/h

Distance = 114.5 m = 114.5 m×0.000621371 = 0.0715 mi

[tex]V_f=V_i+2ad[/tex]

[tex]0=34.7^2+2a*0.0715[/tex]

[tex]0.143a=-1204.09[/tex]

[tex]a=\frac{-1204.09}{0.143}[/tex]

[tex]a=-8420.21mi/h^2[/tex]

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The tension between the cars when the train's speed is constant will be zero and when the train is accelerating then there will be more tension between first two cars than last two.

The coupling's tension T is equal to the force is used against it. It moves in the opposite direction of the force being applied. The acceleration will be 0 while the train is running at constant speed. Thus, there is tension at the value of the two specified cars will be zero.

The link between the vehicles feels tension as the train accelerates. Assume the train has n number of cars for the sake of clarity. T1 and T2 refer to the tension at the first two and last two cars, respectively.

Let m represent the car's mass. Due to its need to draw the (n-11) masses, the coupling between the first two vehicles is under the most strain. Consequently, there is tension on the coupling between first two vehicles are,

T₁= (n-1)ma

However, because they are only required to pull the final two cars, there is no friction between them. Hence,

T= ma

As a result, there is more tension between the first two cars than the last two.

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(a) [tex]\mathbf{S = 30,000e^{(-k/t)}}[/tex] & (b) [tex]\mathbf{S = 30,000e^{(-k/5)}}[/tex] are the number of units that will have been sοld after 5 years is [tex]\mathbf{30,000e^{(-k/5)}}[/tex], as per the sales S (in thousands of units) of a new product after it has been οn the market for t years is given by S = Cek/t .

What is cumulative sales?

Cumulative sales is the total amοunt of sales earned in a given period of time. It is the sum of all sales made during a specific periοd, including all sales before and during the current period. Cumulative sales is a measure of οverall performance and progress. It allοws businesses to identify trends in their sales and perfοrmance οver time.

Given that 5000 units have been sοld after 1 year and the saturation pοint for the market is 30,000 units, we can write the equatiοn S = Cek/t as follοws:

[tex]\mathrm{30,000 = 5000e^{(k/1)}}[/tex]

Rearranging this equatiοn, we get:

[tex]\mathrm{e^{(k/1)}=6}[/tex]

Therefore, k = ln(6)

Substituting this value of k intο the equation S = Cek/t, we get:

[tex]\mathrm{S = 30,000e^{(-ln(6)/t)}}[/tex]

Simplifying this equatiοn, we get:

[tex]\mathrm{S = 30,000e^{(-1/t)}}[/tex]

Therefore, [tex]\mathrm{S = 30,000e^{(-1/t)}}[/tex] is the equation for the sales S (in thousands of units) of a new product after it has been οn the market for t years when 5000 units have been sοld after 1 year and the saturation point for the market is 30,000 units.

To find the number of units that will have been sοld after 5 years, we can substitute t = 5 into the equatiοn [tex]\mathrm{S = 30,000e^{(-1/t)}}[/tex]. This gives us:

[tex]\mathrm{S = 30,000e^{(-1/5)}}[/tex]

Therefore, the number of units that will have been sοld after 5 years is [tex]\mathbf{30,000e^{(-k/5)}}[/tex]

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The Position-Time graph is the graph where the time t and the particle's instantaneous position x are shown on the y-axis and x-axis, respectively.

A position-time graph, can be used to depict an object's motion. The y-axis of this sort of graph denotes position in relation to the starting point, while the x-axis denotes time. An object's distance from its beginning position at any given moment since it began moving is displayed on a position-time graph.

Velocity=Δd/Δt

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Despite the fact that it was screwed up in, the displacement will be S of seven minus.

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The inverse of the mass is referred to as acceleration. The acceleration will be slower the more mass there is.

Acceleration is the rate of change in an object's velocity over time in mechanics. One of the vector quantities is speed. The direction of the net force exerted on an object is what determines its acceleration. The change in velocity rate is referred to as acceleration. Usually, but not always, acceleration implies a change in velocity.

A circular object moving at a constant velocity is still accelerating because its velocity is changing in the opposite direction. In physics, acceleration is the rate of change in an object's velocity over time.  According to Newton's second law, the sum of all forces acting on an object determines its acceleration. Meters per second (ms²) is the SI unit for acceleration.

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The voltage across the inductor is 69.82V

In an RL series circuit connected to an AC source, the voltage across the resistor and the voltage across the inductor are in phase with each other.

This means that the voltage across the resistor and the voltage across the inductor will have the same frequency and will be in the same phase. Since we know the voltage across the resistor is 85 V, the remaining voltage must be across the inductor.

The voltage across the inductor is equal to the total voltage from the AC source minus the voltage across the resistor, so the voltage across the inductor is

110V = [tex]\sqrt{VR2^{2}+VL2^{2} } \\\sqrt{85V^{2}+VL2^{2} } \\V_{L2} = \sqrt{110V^{2}- 85V^{2} } = 69.82V[/tex]

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The horizontal velocity of a projectile with a horizontal component of motion will never change. At the top of its trajectory, a projectile's horizontal velocity is zero meters per second.

What does motion imply? Simply put?

Motion is the slow, long-term shift in an object's location. Motion is defined in terms of displacement, distance, momentum, acceleration, time, and speed. Motion can be experienced while walking, cycling, leaping, bathing, eating, drinking, playing, typing, watching moving cars, and tossing a ball.

Why is movement important to your well-being?

Motionless is death. As much as it needs food, water, or air, your body needs movement. It provides the brain with the essential nutrients it needs to be stimulated (known as proprioception).

The vertical and horizontal velocities of a projectile are independent of one another; the horizontal velocity is unaffected by the vertical velocity.

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The maximum force in the floor exert on the ball is 60N.

Step 1: Calculate the change in momentum of the ball when it collides with the floor.

Step 2: Recall the impulse-momentum theorem, which states that the impulse imparted by an applied force is equal to the change in momentum of an object.

Step 3: Use the impulse-momentum theorem to calculate the force exerted by the floor on the ball.

Step 4: The force exerted by the floor on the ball can be calculated as follows:

Force = Impulse / Time = (150 g * (2.2 m - 1.5 m)) / (5.0 ms) = 60 N

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The interference will cause the voltage of the bits read by the receiver to be shifted by +0.5V.

Generally,  This is because the induced voltage will add to the original signal voltage, resulting in an overall increase in the voltage level of the bits traveling on wires A and B.

This shift in voltage can potentially cause errors in the signal being received, as the receiver may interpret the higher voltage levels as a different signal or data bit.

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Ukrainian Sergei Bubka mass is 79.8 kJ t the midpoint of his jump.

What is mass?

Mass can be experimentally defined as a measure of the body's inertia, meaning the resistance to acceleration (change of velocity) when a net force is applied.

h=6.13 meters

mg=9.81 m/s2

PEg= 4.80  ×10^3J

The mas is Unknown=

We will Use the equation for gravitational potential energy, and rearrange it to solve for mass

Therefore  PEg = mgh

mass = PEg / gh

mass =  4.80  ×10^3 / 9.81  x 6.13

mass = 79.8 kJ

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The size of this induced voltage is related to the speed or velocity of the movement, which causes a coil or loop of wire to experience a voltage as a result of moving it through a magnetic field.

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Answer:

62°

Explanation:

Variables:

x=0.65m (distance up ladder)

L=2.5m (ladder length)

m = 22.5kg (mass)

g = 9.8 (gravity)

μ = 0.11 (static friction)

N = Normal Force (Weight in this context)

Formulas:

Weight(W)=mg

Friction Force(F)=μN

Torque(T)= [tex]Frsin[/tex]θ

Substitute Force and length in each torque we're calculating

[tex]T_{counterclockwise} =[/tex] (μN)*L*sinθ

[tex]T_{clockwise} =[/tex] mg*x*cosθ

They need to be equal:

[tex]T_{counterclockwise} = T_{clockwise}[/tex]

(μN)*L*sinθ = mg*x*cosθ

[tex]\frac{sin}{cos}=tan[/tex]

tanθ= (mg*x) / (μ*N*L)

Since W=mg=N, they cancel out.

tanθ= (x) / (μ*L)

Inverse tangent

θ= [tex]tan^{-1}[/tex](x / (μ*L))

Plug in variable:

θ= [tex]tan^{-1}[/tex](0.65 / (0.11*2.5))

θ= [tex]tan^{-1}[/tex](2.3636)

θ= 62.0676° ≈ 62°

Hope this helps ;)

The candles should be lit at 12 PM (noon) for the stub of the first candle to be twice the length of the second candle at 4 PM.

To determine the time at which the candles should be lit so that at 4 PM one stub is twice the length of the other, we need to use the concept of similar triangles.

Let's call the length of the first candle (the one that burns out in 3 hours) as x. The length of the second candle (the one that burns out in 4 hours) as y.

At 4 PM, the first candle will have burnt out completely, while the second candle will have only burnt out (4/3) of its length.

So, the length of the stub of the second candle is y(4/3). Now we know that x = 2(y(4/3))

We can solve for x and y by using the proportion (x/3 = y/4).

Comparing both equations we can conclude that the first candle should be lit at 12:00 PM in order to fulfill the condition.

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When blocks are forced together, they compress a massless spring between them, storing 0.75 J of potential energy in the process.

Potential energy in physics is the energy that an object retains as a result of its position in relation to other objects, internal stresses, electric charge, or other elements. Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases.

Here,

let velocity of A be uf.

Maui+Mbvi=Mauf+Mbvb

0=1*uf+2*0.5

uf=-1 m/s

PE=ΔKE

=1/2*Ma*uf²+1/2*Mb*vf²

=1/2*1*1²+1/2*2*0.5²

PE=0.75 J

When blocks are forced together, a massless spring between them is compressed, storing 0.75 J of potential energy.

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complete question:

Block A in the figure has a mass of 1 kg and block B has a mass of 2 kg. The blocks are forced together compressing a mass-less spring between them and the system is released from rest on a level friction less surface. The spring is not fastened to either of the blocks, when spring regains its natural length, block B acquired a speed of 0.5 m/s. How much potential energy was stored in the compressed spring?

Temperature is a measure of the random motion of particles and heat is the transfer of energy between two objects due to temperature difference.

What do you call a measure of particle movement?

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If the hole has a diameter of 3.50 mm, the height h of the water level in the tank is 9×10-2m.

Explain about Mechanical Properties of Fluids?

Mechanical properties of fluids are those properties that describe a fluid's behavior under a force or load. Examples of mechanical properties include viscosity, compressibility, surface tension and elasticity.

Step 1: Calculate the volume of water in the tank.

Volume = πr2h

where r is the radius of the tank and h is the height of the water level.

Step 2: Calculate the velocity of the jet of water.

Velocity = (2gh)1/2

where g is the acceleration due to gravity and h is the height of the water level.

Step 3: Calculate the mass flow rate of the jet of water.

Mass flow rate = ρAV

where ρ is the density of the water, A is the area of the hole and V is the velocity of the jet of water.

Step 4: Calculate the height h of the water level in the tank.

Height = (mass flow rate/πr2)1/2

where r is the radius of the hole.

Substituting the values,

h = 9×10-2m

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The molecule were increased in kinetic energy but in a random structure. Thus, option 2 is correct.

Energy can take many different forms. Some examples of these are: nuclear and atomic energy, thermal energy, energy of motion, gravitational energy, electrical energy, elastic energy, fuel cells, and so on.

Things are heated, water is boiled, eggs are fried, and metal is melted for automobile construction. Heat is converted into electricity at a thermal power plant, which powers our daily activities. The term "temperature" refers to the degree to which something is hot or cold. The temperature is measured in degrees Celsius.

Given:

At 3 p.m., the water temperature is raised.

The average kinetic energy of an object is proportional to its temperature. As a result, as temperature rises, so does average kinetic energy. Kinetic energy is caused by the random movement of molecules.

Correct answer: The kinetic energy of the molecule was increased, but in a random structure.

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Complete question:

The measure of the angle between three-dimensional vectors a and b; θ = acos(-0.5235) = 2.0463 radians, rounded to two decimal places.

In physics, vector is that quantity that has both direction and magnitude.

As, cos(θ) = (a · b) / (||a|| * ||b||)

Given, a = 3i - j - 2k, b = v + w where v = -2i - 3j + 2k and w = i +2k

So, a · b = (3i - j - 2k) · (v + w) = (3i - j - 2k) · (-2i - 3j + 2k + i + 2k)

a · b = (3i - j - 2k) · (-2i - 3j + 2k + i + 2k) = (-6i^2 + ji - 4ik) + (-3j - 2k + i + 2k) = -6 + 1 - 4 + (-3 - 2 + 1 + 2) = -4

||a|| = sqrt((3i - j - 2k) · (3i - j - 2k)) = sqrt(9 + 1 + 4) = sqrt(14) = 3.74166

||b|| = sqrt((v + w) · (v + w)) = sqrt((-2i - 3j + 2k + i + 2k) · (-2i - 3j + 2k + i + 2k)) = sqrt((-2i - 3j + 2k + i + 2k) · (-2i - 3j + 2k + i + 2k)) = sqrt((-4 - 6 + 4 + 1 + 4)) = sqrt(9) = 3

cos(θ) = (a · b) / (||a|| * ||b||) = -4 / (3.74166 * 3) = -0.5235

Hence, θ = acos(-0.5235) = 2.0463 radians, rounded to two decimal places.

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A comet that is moving southward from north celestial pole towards equator can be described as having its declination decrease with time.

Comets are frozen leftovers from the formation of solar system composed of dust, rock and ices. They range from few miles to tens of miles wide, but as they orbit closer to the Sun, they heat up and spew gases and dust into the glowing head that is larger than a planet.

Short-period comets takes less than 200 years whereas long-period comets take over 200 years with some taking 100,000 to 1 million years to orbit the Sun. Short-period comets are found near the ecliptic, which means they are orbiting the Sun in same plane as planets.

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a. In the first 4.0 seconds of its motion, the car is accelerating from rest to a certain velocity. From the velocity-versus-time graph, we can see that the velocity increases linearly with time. Therefore, we can use the equation: distance = (initial velocity + final velocity) / 2 * time to calculate the distance covered by the car in the first 4.0 seconds.

In this case, the initial velocity is 0 m/s and the final velocity is V, where V is the velocity after 4.0 s. Therefore, the distance covered by the car in the first 4.0 seconds is (0 + V) / 2 * 4 = 2V * 4.

b. In the last 2.0 seconds of its motion, the car is decelerating from a certain velocity to come to rest again. From the velocity-versus-time graph, we can see that the velocity decreases linearly with time. Therefore, we can use the equation: distance = (initial velocity + final velocity) / 2 * time to calculate the distance covered by the car in the last 2.0 seconds.

In this case, the initial velocity is V, where V is the velocity before 2.0 s and the final velocity is 0 m/s. Therefore, the distance covered by the car in the last 2.0 seconds is (V + 0) / 2 * 2 = V * 2

c. The middle portion of the car's motion corresponds to the constant velocity segment of the graph. From the graph, we can see that the velocity is a constant value for the middle portion of the motion. Therefore, we can read the value of V from the graph, it is the slope of the line from the graph, which is 22/8 = 2.75 m/s.

Despite touching the egg, the automobile won't crack it. The automobile cannot reach the egg because the egg on Hill 3 is higher than the starting height of the car on Hill 1.

The car's position at the top of the hill's potential energy is turning into kinetic energy as it descends. where "g," which is equal to 9.8 m/s2, is the gravitational constant.

The original spring potential energy held within the block-spring system is subtracted from the ultimate kinetic energy of the system.

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Answer:

The car will never reach the egg.

Explanation: Because the egg on Hill 3 is higher than the initial height of the car on Hill 1, the car will not be able to reach the egg. Unless it has some starting speed, the car will not be able to rise higher than its starting position.