the sports car is traveling along a 30∘ banked road having a radius of curvature of rho = 500 ft

Answer:

A

Explanation:

Image result for Which describes refraction? the reflection of light as it passes through a substance the focusing of light as it passes through a substance the emission of light as it passes through a substance the bending of light as it passes through a substance

When electromagnetic radiation, in the form of visible light, travels from one substance or medium into another, the light waves may undergo a phenomenon known as refraction, which is manifested by a bending or change in direction of the light.

Answer:

Wire length, current value, and potential difference certainly belong to the continuous category.

Perhaps, eye color would be the 4'th value because of the continuity involved

The largest acceleration that can be given to the mass without breaking the string is most nearly 6.86 m/s².

To determine the largest acceleration for the 3kg mass suspended by the thin string without breaking it, you need to consider the maximum force the string can support, which is 50N. Start by calculating the gravitational force acting on the mass (weight) using the formula F = mg, where F is the force, m is the mass (3kg), and g is the acceleration due to gravity (approximately 9.81 m/s²).

F = 3kg × 9.81 m/s² ≈ 29.43N
Since the string can support a maximum force of 50N, subtract the gravitational force to find the additional force it can handle without breaking:
50N - 29.43N ≈ 20.57N
Now, calculate the largest acceleration using Newton's second law, F = ma, where F is the additional force, m is the mass (3kg), and a is the acceleration:
20.57N = 3kg × a
Solve for a:
a ≈ 20.57N / 3kg ≈ 6.86 m/s

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The, speed of the wave is A'f.

The number of complete oscillations made by a wave during a time interval of one second is defined as the frequency of the wave.

The time period of a wave is the time taken by a wave to complete one oscillation. It is the reciprocal of frequency of the wave.

The expression for speed of the wave is given by,

v = fλ

where f is the frequency and λ is the wavelength of the wave.

Here, the wavelength of the wave, λ = A'

Therefore, speed of the wave,

v = A'f

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An oscillator is an electronic device that produces an electrical signal at a specific frequency. A capacitor is an electrical component that stores electrical energy. In recent years, it has become possible to purchase a 1.0 F capacitor. This is an incredibly large amount of capacitance.

Suppose you want to build a 1.1 Hz oscillator using a 1.0 F capacitor and a spool of 0.25-mm-diameter wire and a 4.0-cm-diameter plastic cylinder. We can calculate the required inductance value using the formula:f = 1/2π√(L*C)Where f is the desired frequency, L is the inductance value, and C is the capacitance value. Substituting the given values:

\(f = 1.1 HzC = 1.0 F\)

Plugging these values into the formula and solving for L:

1.1 Hz = 1/2π√(L*1.0 F)2π*1.1 Hz = √(L*1.0 F)6.88 Hz2 = L*1.0 F6.88 H/ F = LL = 6.88 H

\(1.1 Hz = 1/2π√(L*1.0 F)2π*1.1 Hz = √(L*1.0 F)6.88 Hz2 = L*1.0 F6.88 H/ F = LL = 6.88 H\)We need to wrap this inductance value with two layers of closely spaced turns around the plastic cylinder.

The inner diameter of the cylinder is equal to the diameter of the wire, which is 0.25 mm or 0.00025 m. Therefore:d = 0.00025 mThe outer diameter of the cylinder is 4.0 cm or 0.04 m. Therefore:D = 0.04 mPlugging these values into the formula for A:

\(A = (π/4)(0.04² - 0.00025²)A = 0.001257 m²\)

Plugging these values into the formula for L:

\(L = µn²A/lSolving for l:l = µn²A/L\)

Plugging in the given values:

\(µ = 4π x 10^-7 H/mn = 2\)

(since we want two layers)

\(A = 0.001257 m²L = 6.88 Hl = (4π x 10^-7 H/m)(2²)(0.001257 m²)/(6.88 H)l ≈ 0.0015 m\) or 1.5 mm

Therefore, the length of the inductor should be approximately 1.5 mm.

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Answer:

B

Explanation:

Answer:

0 N

Explanation:

suppose, you push a box with 5 N, and another person pushes the box on the opposite side of the box with 5 N, the net force (resultant ) is 0 N, the box will not move if it wasn't moving

hope this helps

A ball is thrown vertically upward with a velocity of 20m/s from the top of a multistory building. The height of the point where the ball is thrown is 25 m from the ground. The height will the ball rise is 20m. 5s long will it be before the ball hip the ground.

The direction of a body or object's movement is defined by its velocity. In its basic form, speed is a scalar quantity. In essence, velocity is a vector quantity. It is the speed at which distance changes. It is the displacement change rate.

A. for solving how high will ball go , velocity at the top point will be 0 this gives ,

s = v² - u² / 2a

= 0 - 20² / -2 × 10

= 20m

B. Time to reach maximum height can be obtained from v = u + at

0 = 20 + ( − 10 ) t

t = 2s

s = ut + 0.5at²

= 20 ( 2 ) + 0.5 ( −10 ) ( 2 )²

= 20m

Therefore, the total distance for maximum height is 45 m

s = ut + 0.5at²

45 = 0 + 0.5 ( 10 ) ( t )²

t = 3s

Then,

Total time = 3+2

= 5s

Thus, A ball is thrown vertically upward with a velocity of 20m/s from the top of a multistory building.The height will the ball rise is 20m. 5s long will it be before the ball hip the ground.

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The speed at the bottom of the valley is 29.7 m/s. The speed at the top of the second hill is 9.9 m/s. The results are independent of the angle of the hills.

Speed of an object can be defined as the total distance covered in a given period of time. It is a scalar quantity because it has only the magnitude and no direction. The SI unit of speed is meter per second (m/s).

Since, there is no frictional force involved we can apply the law of conservation of energy, and the total mechanical energy of a system remains conserved under the action of conservative forces like the gravitational forces.

Total energy = KE + PE

where, KE is Kinetic Energy and PE is Potential Energy

At the top of the hill, KE will be 0 since the skier is at rest, so all the energy is potential energy:

PE = mgh

where,

m is the mass of the skier

g is the acceleration of gravity

h = 45.0 m is the height of the hill

At the bottom, there is only the kinetic energy:

KE = 1/2 mv²

where, v is the speed of the skier at the bottom of the hill

Since the total energy is conserved, then:

KE = PE

1/2 mv² = mgh

v = \(\sqrt{mgh}\)

v = \(\sqrt{2gh\\}\)

v = \(\sqrt{(2)(9.8)(45)}\)

v = 29.7 m/s

The height of the second hill is h' = 40.0 m

Applying the conservation of energy, the kinetic energy at the bottom will be converted to potential energy and remaining kinetic energy for the second hill:

let the speed of the skier at the top of second hill be v', then

1/2 mv² = mgh' + 1/2 mv'²

mgh = mgh' + 1/2 mv'²

v' = \(\sqrt{2g(h-h')}\)

v = \(\sqrt{(2)(9.8)(45-40)}\)

v = 9.8 m/s

We can clearly see in the above results that the results are independent of the angle of the hills.

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Your question is incomplete, most probably the complete question is:

A skier starts from rest at the top of a 45.0-m-high hill, skis down a 30° incline into a valley, and continues up a 40.0-m-high hill. The heights of both hills are measured from the valley floor. Assume that you can neglect friction and the effect of the ski poles. How fast is the skier moving at the bottom of the valley? What is the skier’s speed at the top of the next hill? Do the angles of the hills affect your answers?

Answer:

A: i cant show the graph i did

B: The biker would have gone 3.6 km in 12 minuets

Explanation:

Answer:

fourth quadrant.

Explanation:

First, let us see how many 2 pi radians are there in 40 pi /7. The answer is found by dividing 40 pi / 7 by 2 pi

Meaning ( 40 pi / 7 ) / ( 2pi ) = 2 Remainder 6

Meaning there are 2 complete revolutions in ( 40 pi / 7 ).

How about the revolution that is incomplete?

Now,

Which if we plot, looks like

Meaning that 40 pi / 7 lies in the fourth quadrant.

Answer:

Explanation:

I'll do this in both meters and feet, since you don't specify which you need. Since we are only dealing in the y-dimension:

Δx = ???

a = -9.8 m/s/s

v₀ = 0

t = 16 sec

In the equation:

Δx = v₀t + \(\frac{1}{2}at^2\) we fill in accordingly:

Δx = \(0(16)+\frac{1}{2}(-9.8)(16)^2\) which simplifies to

Δx = \(\frac{1}{2}(-9.8)(256)\) so

Δx = -1300 m. Now in feet, it's the same equation but the acceleration is -32 ft/s/s:

Δx = \(\frac{1}{2}(-32)(256)\) which is

Δx = -4100 ft (the negative signs here just indicate direction: the penny is this distance below the point from which it was dropped. So, obviously, to answer the question regarding the height of the building, you would say it was 1300 m high or 4100 feet high. The negative would be significant if we were asked instead "How far did the penny fall?" which would be the same answer to a slightly different question.)

The swimmer will take 50 seconds to go 100 meters. So, the correct answer is B) 50 seconds.

To determine how long it will take for a swimmer moving at a speed of 2.0 meters per second to go 100 meters, you can use the formula time = distance/speed.

1: Identify the given values - distance (100 meters) and speed (2.0 meters per second).
2: Use the formula time = distance/speed to find the time it takes to cover 100 meters.
3: Plug in the values: time = 100 meters / 2.0 meters per second.
4: Calculate the time: time = 50 seconds.

So, B is the correct option.

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If a single lens forms a virtual image, we can conclude that:

The lens being used is a diverging lens, and the object is placed within the focal length of the lens.

In this situation, light rays diverge after passing through the lens, making it impossible for them to converge at a single point on the other side of the lens.

As a result, the image appears to originate from a point behind the lens, creating a virtual image.

The virtual image produced is upright and magnified, meaning it appears larger than the original object.

Since the image is not formed by the actual convergence of light rays, it cannot be projected onto a screen, and can only be observed by looking through the lens.

In summary, when a single lens forms a virtual image, we can conclude that the lens is diverging, the object is placed within the lens's focal length, and the resulting image is upright, magnified, and cannot be projected onto a screen.

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The snake and rat both share the same ancestor population that had a quadrate bone, which was inherited from an ancestor population.

A homo-logous structure is a trait that may or not have the same function but has a common evolutionary origin.

A homo-logous structure can be used to trace the evolutionary relationships between species.

Conversely, an analogous structure has the same function but it does not reflect an evolutionary origin.

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Answer:

It will decelerate at the rate of \(3.52\ m/s^2\).

Explanation:

Initial speed of the truck, u = 35 m/s

Final speed, v = 5 m/s

Time, t = 8.5 s

We need to find the deceleration of the truck. As the speed is becoming less, it means it will decelerate. It can be calculated as follows :

\(a=\dfrac{v-u}{t}\\\\a=\dfrac{5-35}{8.5}\\\\a=-3.52\ m/s^2\)

So, it will decelerate at the rate of \(3.52\ m/s^2\).

It takes approximately 1.71 seconds for the box to accelerate from rest to a velocity of 3.90 m/s for the force of 4.10N is applied to accelerate a 1.80kg box from rest to 3.90m/s.

To find the time it takes for the box to accelerate from rest to 3.90 m/s with a force of 4.10 N, we can use Newton's second law of motion:

F = ma

Where:

F = force (4.10 N)

m = mass of the box (1.80 kg)

a = acceleration

t = time

From the equation, we can rearrange it to solve for acceleration:

a = F / m

Substituting the given values:

a = 4.10 N / 1.80 kg

a ≈ 2.28 m/s²

Now, we can use the kinematic equation to find the time it takes for the box to reach a velocity of 3.90 m/s:

v = u + at

Where:

v = final velocity (3.90 m/s)

u = initial velocity (0 m/s, as the box starts from rest)

a = acceleration (2.28 m/s²)

t = time

Rearranging the equation to solve for time (t):

t = (v - u) / a

Substituting the given values:

t = (3.90 m/s - 0 m/s) / 2.28 m/s²

t ≈ 1.71 s

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The question is -

A force of 4.10N is applied to accelerate a 1.80kg box from rest to 3.90m/s. How long does it take?

Answer:

Comencemos con la primera:

si tenemos algo como:

7.1*10^n

Simplemente lo que tenemos que hacer es:

si n es positivo, movemos n veces el punto para la derecha, si no tenemos dígitos, completamos con ceros.

si n es negativo, movemos n veces el punto a la izquierda.

a) 7.1*10

aca tenemos n = 1

entonces movemos una vez el punto a la derecha:

7.1*10 = 71. = 71

b) 2.3*10^3

aca n = 3, entonces movemos el punto 3 veces a la derecha:

2.3*10^3 = 23__.

Tenemos dos huecos ahí, los cuales serán completados con ceros, entonces:

2.3*10^3 = 2,300. = 2,300

c) 1.56*10

n = 1, entonces movemos el punto una vez a la derecha:

1.56*10 = 15.6

d) 4.10^4

acá tenemos n = 4

entonces movemos el punto 4 veces a la derecha, recordar que debemos completar con ceros:

4.10^4 = 40,000. = 40,000

Answer:

Central City is the county seat and the most populous municipality of Gilpin County. The city is a historic mining settlement founded in 1859 during the Pike's Peak Gold Rush and came to be known as the "Richest Square Mile on Earth".

When examining a piston crown that has vertical cracks through the edges of the piston's combustion chamber bowl, Technician A suggests the piston crown was not getting properly cooled due to low mass airflow in the combustion chamber during the valve overlap period. The correct suggestion is Technician A because the piston crown to not get properly cooled and thus causes cracks

While examining a piston crown that has vertical cracks through the edges of the piston's combustion chamber bowl, it was found that the technician A suggested that the piston crown was not getting properly cooled due to low mass airflow in the combustion chamber during the valve overlap period. While technician B suggests the cracks were caused by inadequate cooling by the oil cooler nozzles.

In this situation, technician A is correct. During valve overlap, a low-mass airflow occurs, which leads to an increased temperature of the combustion chamber. This causes the piston crown to not get properly cooled and thus causes cracks. Therefore, technician A's suggestion is correct.

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Answer:

B. Luminosity

Explanation:

The luminosity of a star is a measure of its brightness.

Have a good day and stay safe!

The correct answer is E) This is impossible. You cannot walk 200m and be only 100m away from where you started. To determine the number of degrees you turned, we can use basic geometry.

You started in the middle of a field and walked 100m in a straight line. This forms a right triangle, where one side is the distance you walked (100m) and the other side is the distance from the starting point to the final position (100m).

Since the triangle is a right triangle, we can use the Pythagorean theorem to find the length of the hypotenuse, which represents the distance you are from the starting point.

Using the Pythagorean theorem:

\(c^2 = a^2 + b^2\)

\(c^2 = 100^2 + 100^2\)

\(c^2 = 20000\)

c = √20000

c ≈ 141.42 m

From this, we can see that the distance from the starting point is approximately 141.42m, not 100m. Therefore, the given situation is impossible.

The correct answer is E) This is impossible. You cannot walk 200m and be only 100m away from where you started.

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Full Question ;

You are in the middle of a large field. You walk in a straight line for 100m, then turn left and walk 100m more in start line before stopping. When you stop, you are 100m from the starting point.By how many degrees did you turn?

A) 90

B) 120

C) 30

D) 180

E) This is impossible. You cannot walk 200m and be the only 100m away from where you started.

The change in position in degrees will be 57.30°

angular velocity = change in angular rotation / change in time

given

angular velocity = 2 rad/s

time = 0.5 seconds

change in position  = angular velocity  * change in time

                                                  = 2 * 0.5 = 1 rad

1 radian = 180 / π = 57.30 °

The change in position in degrees will be 57.30°

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The Federal Reserve helps to regulate the economy of the United States. So, the correct option is D.

Marketing is defined as the activities done for promoting the products through creating offers and communicating to the customers.

Here,

The Federal Reserve of the United state is functioning as a Central Bank, such that they are maintaining the financial aspects of the system.

The Federal Reserve has a great role in regulating the financial system and at the same time, the establishing of the monetary policies.

The primary functions of the Federal Reserve includes the functions of maintaining the banking operations and reliable payments for the system.

Hence,

The Federal Reserve helps to regulate the economy of the United States.

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Explanation:

The density of a solid copper is 8960kg/m^3 while the density of a molten copper is 7900kg/m^3 this is due to the difference in the state of matter, the solid copper is in solid state while the molten copper is in form of a liquid. In the solid copper atoms are tightly pack while they atom are not tightly packed.

Answer:

???

Explanation:

Answer:

1)  10 kg-m/s

2)  2 kg

3)  20 m/s

Explanation:

The momentum of an object can be calculated using the equation:

\(\large\boxed{p=mv}\)

where:

\(\hrulefill\)

For this question we need to find the momentum of a bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s.

Given values:

Substitute the given values into the momentum formula and solve for p:

\(p=4.0\;\text{kg} \cdot 2.5\;\text{m/s}\)

\(p=10\;\text{kg m/s}\)

Therefore, the momentum of the bowling ball is 10 kg-m/s.

\(\hrulefill\)

For this question we need to find the mass of a skateboard rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s.

Given values:

As we want to find mass, rearrange the momentum formula to isolate m:

\(\large\boxed{m=\dfrac{p}{v}}\)

Substitute the given values into the formula and solve for m:

\(m=\dfrac{6.0\; \text{kg m/s}}{3.0\; \text{m/s}}\)

\(m=2\;\text{kg}\)

Therefore, the mass of the skateboard is 2 kg.

\(\hrulefill\)

For this question we need to find the velocity of a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s.

Given values:

As we want to find velocity, rearrange the momentum formula to isolate v:

\(\large\boxed{v=\dfrac{p}{m}}\)

Substitute the given values into the formula and solve for v:

\(v=\dfrac{10\; \text{kg m/s}}{0.5\; \text{kg}}\)

\(v=20\;\text{m/s}\)

Therefore, the velocity of the baseball is 20 m/s.

Givne densities are,

The density of water is ρ=1 g/cm³.

Any object will float if the denisty of the object is less than the density of water, if the density of object is greater than the dnesity of water, then the object sink in the water.

In the given case, all the objects have density greater than the density of water. Therefore, all the objects will sink in the water.

Thus, option E is corret, no object will flot on the water.