A 3,65 kg mass attached to a
light string rotates on a
horizontal, frictionless table. The
radius of the circle is 1.21 m, and
the string can support a mass of
32.4 kg before breaking. The
acceleration of gravity is
9.8m/s2. What maximum
speed can the mass have before
the string breaks?
S

when an object is placed in a fluid and then released ,The object will float if the density of object ( Pobject )is less than the density of fluid ( Pfluid ) .Pobject < Pfluid -> object will float .

The object will sink if density of object ( Pobject ) is more than the density of fluid ( Pfluid ) .Pobject > Peluid - object will sink

Here , the object is floating on the surface of liquid of first container . So , the density of object is less than the density of liquid .

object < Pliquid 1

Now , the object is removed and placed in second container with Liquid 2 having density greater . Puquid 1 < Pliquida

so ,Pobject < Pliquids < Pliquidz

In this case , object well float also , but its depth will be less than it was in thefirst container,( Liquid 2 is denser).

Here , in this case, we will observe :The object will float submerged less deeply than in the first containers.

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Answer:

Correct Answer: Option B

Explanation:

Explanation

P1/T1 = P2/T2

80/(273+47) = P1/(273+27) = 75Nm-2

Answer: 75.0 Nm^-2

Explanation:

P1/T1 = P2/T2 80/(273+47) = P1/(273+27) = 75Nm-2

Answer:

The awnser is d

Explanation:

i know cause i took the test

Answer:

D  34 m/s east

Explanation:

Took the test got 100%

The 200 g ball lands at a distance of 2.0 m from the base of the table.

We are given the masses of the balls (100 g and 200 g), the distance from the base of the table (2.0 m), and we need to determine the distance the 200 g ball lands from the base of the table.

To solve this problem, we'll assume that the only force acting on the balls after they leave the table is gravity, and that air resistance is negligible.

Since both balls roll off the table with the same speed and are only affected by gravity, their horizontal motion should be the same.

Recognize that both balls have the same initial horizontal speed and are under the influence of gravity.

Understand that their masses (100 g and 200 g) do not affect their horizontal motion because gravity affects all objects equally.

Since their horizontal motion is the same, the 200 g ball will also land 2.0 m from the base of the table, just like the 100 g ball.

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The amount of work done, given that the block moved to a distance of 3 m is 38.97 J

Work is defined as the product of force and distance moved in the direction of the force.

Work done (Wd) = force (F) × distance (d)

Wd = fd

Considering angle projection,

Wd = FdCosθ

With the above formula, we can detertmine the work done as follow:

Wd = FdCosθ

Wd = 15 × 3 × Cos 30

Wd = 45 × Cos 30

Wd = 38.97 J

Therefore, we can conclude that the work done is 38.97 J

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The English Bill of Rights helped to shape the colonists' views of government by promoting the ideas of individual liberty, representative democracy, and limited government.

The English Bill of Rights is a document that was passed by the Parliament of England in 1689. It was a key moment in the development of modern democratic government, as it established certain rights and protections for English citizens, such as the right to bear arms, the right to a fair trial, and the prohibition of cruel and unusual punishment.

The English Bill of Rights also limited the power of the monarchy, requiring the king or queen to obtain the consent of Parliament before levying taxes or making other important decisions. Its influence can still be seen today in many democracies around the world.

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The warm beaker and the white solid that falls are both evidence of a chemical reaction.

A chemical reaction entails the progression wherein one or more substances, known as reactants, undergo a conversion into one or more distinct substances, referred to as products.

The reactants and products are intricately interconnected, as they are bound together by chemical forces. Within the reactants, the chemical bonds are disassembled, while novel chemical bonds are fashioned within the products. This phenomenon is identified as a chemical metamorphosis, signifying a transformative endeavor.

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Complete question:

As two solutions are mixed in a beaker the beaker gets warm and a white solid fall. what does this indicate?

Answer:

a semi truck

Explanation:

Answer:

30,000 kgm/s

Explanation:

m = 1000 kg

v = 30 m/s

Plug those values into the equation:

p = mv

p = (1000 kg)(30 m/s)

p = 30,000 kgm/s

The momentum of a 1000 kg sports car traveling at 30 m/s is 30,000 kgm/s.Linear momentum = Mass x Speed.

The product of an object's mass, m, and its velocity, v, is the vector quantity known as linear momentum. It is represented by the letter "p," which is also used to denote momentum.

Mass of car = 1000 kg

Speed by which car moves = 30 m/s. The momentum of the car =?

Recall that:

Linear momentum = Mass x Speed

= 1000 kg x 30 m/s.

= 30,000 kgm/s

The sum of an object's mass (m) and velocity (v) is known as the object's linear momentum. An equation can be used to explain this relationship. Momentum is defined as the body's mass times its velocity. P = m times v, etc.

Therefore,  the momentum of a 1000 kg sports car is 30,000 kgm/s if travels at 30 m/s.

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Based on the data furnished, we can determine that the space-dock employees could have elderly much less compared to the ship's captain when the rocket returns to the space dock.

This conclusion is based on the concept of special relativity, which states that point dilation takes place as an object approaches the rate of mild. In this scenario, the rocket ship Adventure is transferring at a velocity of 0.5 c (half of the speed of light) relative to the distance dock.

When an item moves at excessive speeds relative to an observer, time seems to skip more slowly for that item compared to a stationary observer. This approach is that as the Adventure travels at 0.5 c, time onboard the rocket ship will skip extra slowly relative to the time experienced by the gap-dock employees. The size discrepancy inside the length of the rocket deliver similarly helps this.

According to the ship's captain, the Adventure is 50 m lengthy, while the space-dock employee's degree it to be 43. Three m long whilst it's miles moving at 0.5 c. This phenomenon is called duration contraction, where objects in motion appear shorter within the direction of their movement while determined from a desk-bound body of reference.

Since time dilation happens and period contraction is determined for the rocket ship Adventure because it acts at relativistic speeds, the delivery's captain reports time passing more slowly in comparison to the distance-dock employees. As an end result, when the rocket ship returns to the distance dock, the distance-dock personnel might have elderly in comparison to the delivery's captain.

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Using the time dilation formula we find that the required speed is 0.79 0.79 0.79 c. It move very fast.

Definition of time dilation

A slowing of time in accordance with the theory of relativity that occurs in a system in motion relative to an outside observer and that becomes apparent especially as the speed of the system approaches that of light. — called also time dilatation.

The idea of "absolute time" was our default for millennia. But time is relative, as gravity and motion both cause time to dilate. Both space and time coordinates are needed to describe an object in our Universe.

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Answer:

c 1386J

Explanation:

You use the formula MCΔT where m is mass, C is specific heat, and delta t is change in temperature

A vacuum between the two panes of glass in storm windows aids in the prevention of three principal mechanisms of thermal transfer: conduction, convection, and radiation.

Conduction is the transfer of heat through direct contact between materials. The vacuum acts as an excellent insulator, impeding the flow of heat between the two panes of glass. Without air molecules to transfer heat, conduction is significantly reduced.

Convection is the movement of fluids or gases that transfers heat. Storm windows eliminate the likelihood of convective heat transfer by eliminating the air and producing a vacuum, as there is no medium for heat to circulate..

The emission and absorption of heat energy via electromagnetic waves is referred to as radiation. The vacuum between the glass panes acts as a barrier, limiting thermal radiation transfer and so lowering heat loss or gain through radiation.

The vacuum between the glass panes of storm windows considerably improves energy efficiency by limiting heat loss during colder months and minimising heat gain during hot months by prohibiting these modes of thermal transmission.

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The new angular velocity of the two disks is lower than the initial angular velocity of the first disk. This is because the moment of inertia of the combined system (the two disks) is higher than the moment of inertia of the first disk alone. When the second disk is added, the total moment of inertia increases, which means that more torque is required to maintain the same angular velocity.

However, since the system is still rotating with uniform angular velocity, the torque must remain constant. This means that the new angular velocity is lower in order to compensate for the increased moment of inertia. The exact relationship between the old and new angular velocities depends on the masses and radii of the disks, as well as the initial angular velocity of the first disk.

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Answer:

the wheels on a bike

Explanation:

do you go to k-12 if you do can you help me please have a good night/day :) ❤

The Linbo3 crystal is a negative uniaxial crystal.

This means that it has one optic axis that is perpendicular to the crystal's surface. The indices of refraction for the ordinary and extraordinary waves at room temperature are given by the Sellmeier equations:

n_o(λ) = √(1 + (2.6734λ²)/( λ- 0.01764) + (1.2290λ²)/(λ²- 0.05914) + (12.614λ²)/(λ² - 474.6))

n_e(λ) = √(1 + (2.9804λ²)/(λ² - 0.02047) + (0.5981λ²)/(λ² - 0.0666) + (8.9543λ²)/(λ^²- 416.08))

Where n_o and n_e are the indices of refraction for the ordinary and extraordinary waves, respectively, and λ is the optical wavelength.

To find the indices of refraction for a specific wavelength, simply plug in the value of λ into the equations and solve for n_o and n_e. For example, if the optical wavelength is 500 nm, then:

n_o(500) = √(1 + (2.6734(500)²)/(500² - 0.01764) + (1.2290(500)²)/(500² - 0.05914) + (12.614(500)²)/(500² - 474.6))

n_e(500) = √(1 + (2.9804(500)²)/(500² - 0.02047) + (0.5981(500)²)/(500² - 0.0666) + (8.9543(500)²)/(500² - 416.08))

Solving these equations will give you the indices of refraction for the ordinary and extraordinary waves at a wavelength of 500 nm.

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Answer:

9.80 kg

Explanation:

F = ma

96 N = m(9.8 m/s^2)

m = 9.80 kg

The mass of the ball will be m= 9.8 kg

It states that the force is equal to the rate of change of momentum . For a constant mass , force is equal to mass times acceleration

given :

Force due to gravity = 96 N

g = acceleration due to gravity = 9.8 m /s^2

using Newton's second law of motion

Since , F = ma

          96 = m g

          m = 96/9.8

          m= 9.8 kg

The mass of the ball will be m= 9.8 kg

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According to the given statement the electric field in the conductor will be 1.70 × 10⁻⁸ V/m.

The electric field in the conductor can be calculated using the formula:

Electric field (E) = Drift velocity (v) / Mobility (µ)

In this case, the magnitude of the drift velocity of free electrons in a copper wire is given as 8.52 × 10⁻⁴ m/s. However, we need to determine the mobility of the electrons in order to calculate the electric field.

The mobility of electrons in a material depends on its resistivity (ρ) and the charge of the electron (e). The formula for mobility is:

Mobility (µ) = Drift velocity (v) / Electric field (E)

We can rearrange this equation to solve for the electric field:

Electric field (E) = Drift velocity (v) / Mobility (µ)

Now, let's find the mobility. Since copper is the material in question, we need to know its resistivity. The resistivity of copper is approximately 1.7 × 10^-8 Ωm.

Substituting the given values into the equation, we can solve for the mobility:

Mobility (µ) = 8.52 × 10⁻⁴ m/s / (1.7 × 10⁻⁸ Ωm)

Simplifying this expression, we get:

Mobility (µ) = 5.012 × 10⁴ C/m²V

Now that we have the mobility, we can calculate the electric field using the formula mentioned earlier:

Electric field (E) = 8.52 × 10⁻⁴ m/s / (5.012 × 10⁴ C/m^2V)

Simplifying this expression, we find:

Electric field (E) = 1.70 × 10⁻⁸ V/m

So, the electric field in the conductor is 1.70 × 10⁻⁸ V/m.

In conclusion, the electric field in the conductor is 1.70 × 10⁻⁸ V/m.

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When you see the error message "could not find angular material core theme. most material components may not work as expected," it means that the Angular Material theme is missing, and the application is having difficulty displaying Material components.

Here are some steps to resolve this issue:

1. You should first ensure that Angular Material has been installed in your application. You may use the following command to install Angular Material:ng add ("at" symbol)angular/material

2. Then, import the necessary styles in the styles.scss file to include the Angular Material theme.

Once you've completed these steps, restart your server and see if the error has been resolved. The Material Design components should now display correctly.

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No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

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The unit of pressure known as pascal is equal to 1 Newton / (metre)^2

It is the pressure exerted by a force of 1 newton , which is applied on an area of 1 metre square.

1 pascal pressure means that 1 newton force is equally distributed over an area of 1 metre square .

It is a small unit used for low pressures.

Pascal is denoted by the symbol Pa

It is derived from the formula pressure = force / area.

During a solar eclipse, the Moon will be positioned between the Earth and the Sun, blocking the Sun's light from reaching the Earth. Based on the diagram provided, the position of the Moon during a solar eclipse would be at position Z. This is because in this position, the Moon is directly aligned with the Earth and the Sun, creating a shadow that falls on the Earth, resulting in a solar eclipse.

It's important to note that a solar eclipse is a rare occurrence and can only happen during a New Moon phase, where the Moon is positioned between the Earth and the Sun. In contrast, a lunar eclipse occurs when the Earth is positioned between the Sun and the Moon, causing the Earth's shadow to fall on the Moon.

In the second diagram, the four coastline locations (A, B, C, and D) have different positions relative to the Moon and the Sun. The diagram shows the relative positions during high tide and low tide, indicating the effects of the Moon's gravitational pull on ocean tides.

Coastline location A experiences a high tide because it is closest to the Moon, which has a greater gravitational pull on the water. Coastline location B experiences a low tide because it is on the opposite side of the Earth from the Moon, where the Moon's gravitational pull is weakest. Coastline location C experiences another high tide because it is on the side of the Earth facing away from the Moon, where the water is also being pulled towards the Moon. Lastly, coastline location D experiences a low tide because it is in a position where the gravitational pull of the Moon and the Sun is canceling out, resulting in less of a tidal effect.

In summary, understanding the position of the Moon and its effects on the Earth is important in predicting natural phenomena such as eclipses and tides.

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(a) The impulse reaction of the gadget is h(n) = δ(n+1) + δ(n-1). (b) The system is causal due to the fact the output simplest relies upon present and beyond inputs, x(n+1) and x(n-1), respectively. (c) The system is linear because it satisfies the homes of superposition and homogeneity.

(d) This is an IIR (Infinite Impulse Response) filter out because the output relies upon beyond inputs. (e) The frequency response of the machine is H(z) = \(z^(-1) + z\). (f) The device is BIBO strong considering its miles are linear and causal, and its impulse response is finite, ensuring bounded output for bounded enter.

(a) To discover the impulse reaction of the gadget, we want to enter an impulse signal. An impulse signal is represented as δ(n), that is 1 at n = 0 and 0 for all different values of n.

Let's alternative δ(n) into the given equation:

y(n) = x(n+1) + x(n-1)

For n = 0:

y(0) = x(1) + x(-1)

For n = 1:

y(1) = x(2) + x(0)

For n = -1:

y(-1) = x(0) + x(-2)

For n ≠ 0, 1, -1, y(n) = 0 considering the fact that x(n) = 0.

So, the impulse reaction of the gadget is:

h(n) = δ(n+1) + δ(n-1)

(b) The machine is causal if the output y(n) relies upon only on the present and beyond inputs x(n), x(n-1), x(n-2), and so forth. In this case, due to the fact that y(n) simplest depends on x(n+1) and x(n-1), it does not depend on future inputs. Therefore, the machine is causal.

(c) The system is linear if it satisfies the properties of superposition and homogeneity. Let's confirm these houses:

Superposition:

For two inputs \(x1(n)\)and \(x2(n)\) their corresponding outputs \(y1(n)\) , \(y2(n)\), we've got:

\(y1(n) = x1(n+1) + x1(n-1)\)

\(y2(n) = x2(n+1) + x2(n-1)\)

Now, allow's apply the machine to the linear aggregate of inputs:

\(y(n) = ax1(n) + bx2(n)\)

=\(a(x1(n+1) + x1(n-1)) + b(x2(n+1) + x2(n-1))\)

= \(ax1(n+1) + ax1(n-1) + bx2(n+1) + bx2(n-1)\)

This fits the output received when the system is carried out to the linear mixture of the person inputs. Therefore, the device is linear.

(d) This is an IIR (Infinite Impulse Response) clear out due to the fact the output depends on each contemporary and past input, as visible inside the equation y(n) = x(n+1) + x(n-1).

(e) To locate the frequency response, we will take the Z-remodel of the gadget's impulse response. Applying the Z-transform to the impulse response h(n) = δ(n+1) + δ(n-1), we get:

H(z) =\(Zh(n) = z^(-1) + z\)

The frequency response of the device is the Z-transform of the impulse reaction.

(f) BIBO (Bounded-Input Bounded-Output) stability refers to the belongings of the device to produce bounded output for any bounded input. In this example, because the system is linear and causal, and the impulse reaction is finite, the device is BIBO stable.

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The correct question is:

"A system with input x(n) and output y(n) is characterized by the following equation: y(n) = x(n+1) + x(n-1) (a) Find the impulse response of this system. (b) Is the system causal? Why or why not? (c) Is the system linear? Why or why not? (d) Is this an FIR or IIR filter? (e) Find the frequency response of the system. (f)Is this system BIBO stable? Why or why not?"

Answer:

2min

Explanation:

i think it will be clear from photo

Answer: The formula for current is charge/time

so here we have to change subject so we are asked to look for time  

Explanation: so it would be T=Q/I

T=4/2

T=2s

hope this helpss

Answer:

the correct answer is

Explanation:

The small intestine absorbs most of the nutrients in your food,and your circulatory system passes them on to other parts of your body to store or use. Special cells helped absorbed nutrients cross the intestinal lining into your blood stream.

hope this works out!!!!

The velocity after 1.5seconds is 0.3 m/s.

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

Initial upward velocity: u = 15 m/s.

Time interval: t = 1.5 second.

Acceleration due to gravity acting downward is = 9.78 m/s².

Let the final velocity is v.

Therefore,

v = u -gt

= (15 - 9.8 × 1.5) m/s

= 0.3 m/s.

So, the velocity after 1.5seconds is 0.3 m/s.

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Ann's speed with sandbags is 400 meters in 5 minutes, or an average of 80 meters per minute.

In everyday use and in kinematics, the speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.Speed is defined as. The rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude.There are four types of speed which are uniform speed, variable speed, average speed, and instantaneous speed.

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