In each part below, find the exact value of the probability if it is possible to do so with the information given. If it is not possible, provide the best lower and upper bounds you can. a) the chance that at least one of 10 flights at an airport is late, if each flight at the airport has a 1% chance of being late b) the chance that not all suits appear in a bridge hand of 13 cards dealt at random without replacement from a standard deck [A standard deck consists of 13 cards in each of 4 suits, making 52 cards in all.] c) the chance that all s office hours slots are selected, if each of g GSis selects one of the s slots at random without being influenced by the choices of others d) the chance that it rains every day next week if the daily chances of rain are given by Sun Mon Tue Wed Thu Fri Sat 0.9 0.95 0.95 0.9 0.9 0.85 0.8

Problem 1:Consider the waveform shown in figure 7-71 to be the input waveform of an active-low s-r latch. The solution to the problem is as follows:A clock pulse is used to trigger the latch. As a result, the input is latched into the output. When the clock pulse goes low, the latch is turned off, and the output is latched.

As a result, the output is determined by the input. As seen from the waveform, the output follows the input in a digital waveform. In this way, a simple waveform is converted to a digital waveform.The active low s-r latch consists of two NAND gates and two NOR gates. As a result, the inputs of the NAND gates should be connected to the NOR gates. The outputs of the NAND gates should be connected to the input of the NOR gates.

To construct an active low s-r latch, this arrangement is necessary. The S-R latch, in general, has four types of outputs, and the output is determined by the input. Thus, the solution to the problem is that the waveform of figure 7-71 is latched into the output of the active low s-r latch.

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Answer:

The speed of the box just as it hits the ground is 5.8 m/s

Explanation:

Given;

initial velocity of the box, u = 2 m/s

height of the table, h = 1.5 m

The speed of the box, just before it hits the ground is given by;

v² = u² + 2gh

v² = (2)² + 2 x 9.8 x 1.5

v² = 4 + 29.4

v² = 33.4

v = √33.4

v = 5.8 m/s

Therefore, the speed of the box just as it hits the ground is 5.8 m/s

The weight of the log is 980N

The force of gravity acting on an object is its weight, which is equal to its mass times the acceleration of gravity, or w = mg. The newton is the SI unit for weight since it is a force.

The weight of a 100 kg log can be calculated using the equation w = mg,

where m is the mass of the log (100 kg) and g is the acceleration due to gravity (9.8 m/s^2).

So, w = (100 kg)(9.8 m/s^2) = 980 N.

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Answer: Radioactive decay is the breakdown of a material into stable isotopes which are used for determining the age of the ancient material.

Explanation:

The radioactive decay is a natural process in which an ancient or old material whether in the form of rock, object or fossil break down into elements. Carbon 14 is an unstable isotope which decays to produce stable elements, the dating procedure uses these stable elements and the rate of decay of the isotopes to determine the age of absolute ancient of the objects but exact age cannot be determined just an approximation can be accepted.

Answer:

Explanation:

For refraction , the formula is

sin i / sin r = μ₂ / μ₁

where light is travelling from medium 1 to 2 having refractive index of μ₁ and μ₂ . Angle of incidence in medium 1 is i and angle of refraction in medium 2 is r .

Here i = 70°, r = 37°

μ₁ = 1.8 ,μ₂ = ?

sin70 / sin 37 = μ₂ / 1.8

.939 / .602 = μ₂ / 1.8

1.56 =  μ₂ / 1.8

μ₂ = 2.81 .

The value of refraction index for the second medium will be  \(\mu_2=2.16\)

Every material has a different refractive index. The refracted index of any material shows that the light is refracted by how much angle.

So like for water its value will be different also for glass its value will be different.

Now it is given in the question that

Angle of incidence \(i=70^o\)

Refractive index of the first medium \(\mu_1=1.8\)

Angle of refraction \(r=37^o\)

Now from snells law

\(\dfrac{Sin \ i}{Sin \ r} = \dfrac{\mu_2}{\mu_1}\)

\(\dfrac{Sin70}{Sin37} = \dfrac{\mu_2}{1.8}\)

\(\mu_2= \dfrac{Sin70\times1.8}{Sin37}\)

\(\mu_2=2.16\)

Thus the value of the refraction index for the second medium will be  \(\mu_2=2.16\)

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Answer:

this is the answer

Explanation:

This is the solution, hope it helps

Answer: Polar and Nonpolar

Polar molecules occur when there is an electronegativity difference between the bonded atoms.

Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out

Answer:

The observer will say that galaxy 2 is moving away from galaxy 3 where he stands.

Explanation:

Since the galaxies are expanding, each one would move away from the others. Observers on all three galaxies have their frame of reference fixed on their own galaxies. Judging from their own galaxies, each observer will perceive the other galaxies moving away from his/or galaxy.

The observer at galaxy 3 will talk about galaxy 2 by doing is; he will say that galaxy 2 is moving far from him.

We are told that the universe is expanding and as such, the galaxies would be expanding and moving away from each other.

Since the galaxies are expanding, it means that they will be moving away from each other.

From time dilation principle, an observer at galaxy 3 will say that galaxy 2 is moving far from him.

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Uranium belongs to the f-block of the periodic table. The correct option is fourth.

The f-block is located at the bottom of the periodic table, and it consists of the lanthanide and actinide series. Uranium is an actinide element, which means it is part of the second row of the f-block. It is widely used in nuclear power plants, as well as in nuclear weapons.

The f-block elements are known for their unique electron configurations, which include partially filled f-orbitals. These elements are also called "inner transition metals" because they fill their d-orbitals before filling their f-orbitals. Uranium is a radioactive metal that has 92 protons in its nucleus.

In summary, uranium belongs to the f-block of the periodic table, specifically the actinide series.

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Order from fastest to slowest

\(1\geq 2\geq 3\geq 4\geq 5\)

Sort the items in order of speed. Overlap items to rank them equally.

The wheel in the is rolling to the right without slipping.

Rank in order, from fastest to slowest, the speeds of the points labaled 1 through 5.

Rank items from fastest to slowest. To rank items as equivalent, overlap them.

an sphere is pure rolling speed of context point 5 meet be zero w.r.t ground.

Hence, v-ωR=0

v=ωR

\(v_5_/_g\geq v_5_/_c+v_c_/_g...............(1)\)

part.5

speed= 0 \(v_5=0\)

part.2

\(v_2=\sqrt{v^2+v^2}\)

\(= \sqrt{2} v\)

=(1.414)v

part.3

\(v_3= \sqrt{v^2\)ω\(^{2}\)\(R^2/4\) = 1.118v

part. 1

\(v_1\)=v+ωR

=2v

part. 4

\(v_4\)=v

order from fastest to slowest

\(1\geq 2\geq 3\geq 4\geq 5\)

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Answer:

Acceleration at its most basic is the act of increasing your running speed. From a standing start (or blocks), you explode into action. If you’re already running, you pick up the pace. Acceleration continues until you can no longer increase your speed, at which point you achieve maximum velocity (top-end speed). Acceleration seems simple enough. The plus means your increasing speed, the k=minus means your decreasing in speed.

Explanation:

Gas particles can change to solid particles if the temperature decreases.

The state of matter of a substance is determined by its temperature and pressure. When the temperature of a gas decreases, its particles lose kinetic energy and slow down. This decrease in kinetic energy leads to a decrease in the average speed of gas particles.

As the temperature continues to decrease, the particles lose energy and move closer together. At a certain temperature known as the condensation point or the freezing point, the gas particles no longer have enough energy to overcome the intermolecular forces holding them together.

At this point, the gas undergoes a phase transition and changes into a solid. The process of gas turning into a solid is called condensation or freezing, depending on the specific substance.

During condensation, the gas particles arrange themselves in a more orderly and structured manner, forming a solid. The transition from gas to solid involves the release of energy, known as heat of fusion.

In summary, when the temperature of a gas decreases below its condensation or freezing point, the gas particles lose energy, slow down, and eventually come together to form a solid.

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Answer:

C. Exothermic Reaction

Explanation:

Let's go through the choices

A. Combustion - Combustion is a highly exothermic / redox reaction which produces light and heat (i.e basically it bursts into flames). In the description, the only reaction is that it feels warm, hence this is not the answer.

B. Endothermic - Recall that endothermic reactions absorbs heat and thus cools the surroundings thereby making test tube feel cooler. this is obviously not the case so this is not the answer.

C. Exothermic - Recall that exothermic reactions releases heat and thus causes the surroundings thereby making the test tube feel warmer (or hotter in some cases). This describes our situation so THIS IS THE ANSWER.

D. Endergonic reactions require an input of energy from an external source that is adsorbed by the reaction (for example if heat was applied by an external source). In this case, there is no mention of additional energy sources. Hence this is probably not the answer.

Answer:

Divide by the number 100

Explanation:

Since there are 100 centimeters in 1 meter, we can see that if you are given a number in centimeters, the number of meters is that number divided by 100. Hope this helps!

Answer:

Divide by 100

Explanation:

Answer:

it would be c, there are fewer atoms in the reactants than in the products, and the total mass is less in the reactants than in the products.

Explanation:

Answer:

ccccccccccccccccc

Explanation:

:DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

··

ω

Δ

ω

The volume of aluminum that contains the same number of atoms as 9.0 cm³ of mercury is approximately 0.622 cm³.

To find the volume of aluminum that contains the same number of atoms as 9.0 cm³ of mercury, we need to consider the densities and molar masses of the two elements.

First, let's find the number of atoms in 9.0 cm³ of mercury. To do this, we need to know the density of mercury, which is approximately 13.6 g/cm³.

Using the density formula: density = mass/volume, we can find the mass of 9.0 cm³ of mercury. mass = density × volume mass = 13.6 g/cm³ × 9.0 cm³ mass ≈ 122.4 g

Next, we need to convert the mass of mercury to the number of atoms. To do this, we use Avogadro's number, which tells us the number of atoms in one mole of a substance.

Avogadro's number is approximately 6.022 × 10²³ atoms/mol.

Number of atoms = (mass in grams / molar mass) × Avogadro's number

The molar mass of mercury is 200.59 g/mol. Number of atoms = (122.4 g / 200.59 g/mol) × (6.022 × 10²³ atoms/mol) Number of atoms ≈ 3.68 × 10²² atoms

Now, let's find the volume of aluminum that contains the same number of atoms. We'll use the molar mass and density of aluminum. The molar mass of aluminum is 26.98 g/mol, and the density is 2.70 g/cm³.

First, we calculate the mass of aluminum:

mass = (number of atoms / Avogadro's number) × molar mass mass

= (3.68 × 10²² atoms / 6.022 × 10²³ atoms/mol) × 26.98 g/mol mass

≈ 1.68 g

Next, we find the volume of aluminum using its density:

volume = mass / density volume = 1.68 g / 2.70 g/cm³

volume ≈ 0.622 cm³

Therefore, the volume of aluminum that contains the same number of atoms as 9.0 cm³ of mercury is approximately 0.622 cm³.

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Answer:

The statements are not given, so I will answer in a general way.

We know that when one object is moving with a velocity V, and it wants to come to stop, it needs to accelerate in the opposite direction to the initial velocity (Or decelerate).

As larger this acceleration is, the faster the object will come to a full stop.

Now we have a car (with a mass m) and a truck (with a mass M) are moving with a velocity V.

We can assume that the mass of the truck is larger than the mass of the car, then:

M > m.

Now also remember Newton's second law:

F = m*a

Force equals mass times acceleration.

And we know that both vehicles stop with the same stopping force.

Then the acceleration (deceleration actually) that experiences the car is:

a = F/m

While the acceleration that experiences the truck is:

a' = F/M

Because M is larger than m, we will have:

a' < a

Then the deceleration of the truck is smaller than the one of the car, which means that the car will come to a full stop faster than the truck (or the truck needs more time to stop)

Answer:

I feel like it's Convection because if its dry , then the water comes over it and it warms it also the sun gives it light it's gonna be more warmer. So I think your answer will be Convection.

Explanation:

Because conduction is Anything being warmed by objects touching.

And radiation is Anything being warmed by heat transferring through space.

And the meaning of Convection is Anything being warmed in WATER.

I hope this is right and I hope this will help you in any way!! <3

when the brakes are applied, the groceries will start sliding off the seat immediately. There is no stopping distance without the groceries sliding off the seat.

The shortest distance in which you can stop without the groceries sliding off the seat depends on the friction between the groceries and the seat. In this case, the static and kinetic coefficients of friction are given as 0.65 and 0.45, respectively.

To determine the stopping distance, we need to consider the forces acting on the groceries. When the brakes are applied, a force is exerted on the groceries in the forward direction. This force can be calculated using the equation:

Force = mass x acceleration

Since the groceries are at rest initially, the acceleration can be assumed to be zero. Therefore, the force exerted on the groceries is also zero.

When the brakes are applied, the force of static friction acts in the opposite direction of the applied force. The maximum force of static friction can be calculated using the equation:

Force of static friction = static coefficient of friction x normal force

In this case, the normal force is equal to the weight of the groceries. However, since the surface of the seat is horizontal, the weight of the groceries is balanced by the normal force, resulting in a net normal force of zero. Therefore, the force of static friction is also zero.

Since the force of static friction is zero, the groceries will not experience any frictional force that prevents them from sliding off the seat. Therefore, they will start sliding as soon as the brakes are applied, and there is no stopping distance without the groceries sliding off the seat.

In conclusion, when the brakes are applied, the groceries will start sliding off the seat immediately. There is no stopping distance without the groceries sliding off the seat.

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Answer:

X = A sin ω t      is the simplest equation for SH

V = ω A cos ω t   describes the velocity where    ω A is the maximum speed

cos ω t = 1/2       describes 1/2 the maximum speed

then ω t = 60 deg      (cos 60 = 1/2)

X = A sin 60   will then be the displacement at 1/2 the maximum speed

or X = .866 A = 3^1/2 / 2 A

At 0.866 displacement from the point of equilibrium, the speed of the SHO is half the maximum value.

Equilibrium is the state of such a system in which neither its internal heat state nor its state or motion tend to change over time. If a simple mechanical body experiences neither accelerometers nor angular acceleration, it is considered to be in equilibrium.

That state will last as long as it is not disturbed by an external factor. Equilibrium for a single particle occurs when the vector sum of the forces acting on the particle is zero.

X = A sin ω t    

V = ω A cos ω t, it describes the velocity.

Here,

ω A = maximum speed

cos ω t = 1/2      

then ω t = 60 deg      

∵ cos 60 = 1/2

X = A sin 60, then the displacement will be at half the maximum speed.

X = 0.866 A

= \(3^{1/2}\) / 2 A

= 0.866

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Explanation:

Using equations of motion :

(A) we know that,

u = 0

a = 3.7 m/s^2

S = 63

\( {v}^{2} = {u}^{2} + 2as\)

\(v = \sqrt{0 + 2 \times 3.7 \times 63} = 21.6 \: m{s}^{ - 1} \)

(B)

v = u + at

21.6 = 0 + 3.7 * t

t (time to reach 63 m) = 5.83 seconds

The star is located at a distance of 31.62 parsecs from us.

To determine the distance of the star, we need to use the inverse square law, which states that the apparent brightness of a star decreases as the square of its distance increases. Mathematically, it can be represented as:
Apparent brightness ∝ 1/Distance²
Given that the star's apparent brightness is 10⁻⁴ times its absolute brightness, we can write:
Apparent brightness = Absolute brightness/ (Distance)²
10⁻⁴ = Absolute brightness/ (Distance)²
Solving for distance, we get:
Distance = √(Absolute brightness/10⁻⁴)
However, we don't have the value of absolute brightness. But we can use the information that the star is observed to have an apparent magnitude of 10. Since apparent magnitude is a logarithmic scale, we know that a difference of 5 magnitudes corresponds to a difference of 100 times in brightness. Therefore, the star's absolute magnitude can be calculated as:
Absolute magnitude = Apparent magnitude - 5 log(distance/10)
Substituting the values, we get:
10 = Absolute magnitude - 5 log(distance/10)
Absolute magnitude = 10 + 5 log(10⁻⁴) = 14
Therefore, the distance can be calculated as:
Distance = 10^(1+((Apparent magnitude - Absolute magnitude)/5))
= 10^(1+((10 - 14)/5))
= 31.62 parsecs
Thus, the star is located at a distance of 31.62 parsecs from us.

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Answer:

С. 10.41 Ampere

Explanation:

Given that,

Power, P = 125 watts

Voltage, V = 12 volts

We need to find current. Power in terms of current and voltage is given by :

P = VI, I = current

\(I=\dfrac{P}{V}\\\\I=\dfrac{125\ W}{12\ V}\\\\I=10.41\ A\)

So, the current is 10.41 A.

bullet points are for week people got to have more heart

The statement indicating that 'Gravitation always does negative work' is FALSE.

Gravitation is a fundamental physical force that makes objects attract each other in the Universe.

This force (Gravitation) is required to maintain both constant positions and movement of objects.

In conclusion, the statement indicating that 'Gravitation always does negative work' is FALSE.

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Answer:false

Explanation:

The weight of the object out of water is 800 kg.

To solve this problem, we need to use the principle of buoyancy. When an object is placed in water, it experiences an upward force called buoyant force, which is equal to the weight of the water displaced by the object.

In this case, the object has a volume of 1.00 m³, and 20.0% of its volume is above the waterline. Therefore, the volume of the object submerged in water is:

Vsubmerged = 1.00 m3 - 0.20 x 1.00 m³ = 0.80 m³

We also know the density of water is 1000 kg/m³. Therefore, the weight of the water displaced by the object is:

Wwater = density of water x volume of water displaced
Wwater = 1000 kg/m³ x 0.80 m³
Wwater = 800 kg

This means the buoyant force acting on the object is 800 kg. In order for the object to float, the buoyant force must be equal to the weight of the object. Therefore, we can find the weight of the object as:

Weight of object = Buoyant force = 800 kg

So the object weighs 800 kg out of the water.

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Answer:

.6 A

Explanation:

Battery 15 VOLTS

V = IR

V / R = I

15 / ( 5+20) = .6 amps

Thermal expansion is the phenomenon in which the length of a material changes as a result of temperature changes. When heated, most materials expand, whereas when cooled, they shrink. As a result, we can determine the difference in length between a heated and a cooled object using thermal expansion.

Thermal expansion is a phenomenon in which the length of a material changes as a result of temperature changes. When a substance is heated, its constituent atoms vibrate more quickly and energetically, causing them to spread out and take up more space. The difference in length between an object that is heated and when it is cooled can be calculated using the following formula:ΔL = αL₀ΔTWhere:ΔL is the change in length of the object, α is the coefficient of linear expansion, L₀ is the original length of the object, and ΔT is the temperature difference experienced by the object. The coefficient of linear expansion is a measure of how much a material's length changes in response to temperature changes. It is represented by the symbol α and has units of per degree Celsius (°C⁻¹) or per kelvin (K⁻¹).

Thermal expansion is a phenomenon in which the length of a material changes as a result of temperature changes. When a substance is heated, its constituent atoms vibrate more quickly and energetically, causing them to spread out and take up more space. As a result, the substance's volume expands as well as its length. Similarly, when a substance is cooled, its atoms vibrate less quickly and energetically, causing them to pack together more tightly and take up less space. The temperature difference is the difference between the object's temperature when it is heated and when it is cooled.To illustrate this, consider an iron rod that is 1.0 meter long at a temperature of 20°C. The coefficient of linear expansion for iron is 1.2 x 10⁻⁵ K⁻¹. Suppose the rod is heated to a temperature of 200°C and then cooled back to its original temperature. The temperature difference experienced by the rod is therefore ΔT = 200 - 20 = 180°C. Using the formula above, we can calculate the difference in length of the rod as follows:ΔL = αL₀ΔT = (1.2 x 10⁻⁵ K⁻¹) (1.0 m) (180°C) = 0.00216 m = 2.16 mmTherefore, the difference in length between the rod when it is heated and when it is cooled is 2.16 mm.

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The correct statement is " Negative charge flows from the smaller sphere to the larger sphere until the electric potential of each sphere is the same." The correct Option (E).

When the two spheres are connected with a conducting wire, the negative charge will flow from the smaller sphere to the larger sphere until the electric potential of each sphere is the same. This is because the electric potential at a point in space is proportional to the amount of charge present at that point and inversely proportional to the distance from the point to the center of the charged sphere.

Option (A) is not true because charge will flow due to the difference in potential between the two spheres.

Option (B) is not true because the electric field at the surface of each sphere will not necessarily be the same after charge flows.

Option (C) is not true because the electric potential at a point in space is the same for all charged conductors connected by a wire.

Option (D) is not true because the negative charge will flow from the smaller sphere to the larger sphere, not the other way around.

Therefore, The correct answer is option E.

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Two conducting spheres of different radii with each negative charge connected with a conducting wire, Negative charges flow from the smaller sphere to the larger sphere until the potential becomes the same. Thus, option E is correct.

The potential V = kQ / r,  Potential and charge are directly proportional to each other, more potential gives more negative charge. More negative charge gives lower potential. The potential always flows from a lower to a higher potential. Thus the negative charge flows from the smaller sphere to the larger sphere to equal the potential.

Thus, the correct option is E.

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