The change in total energy of a closed system other than changes in kinetic and potential energies are accounted for by the change in

The combination of effects will result in: Option C : the steady-state creep rate increases, the instantaneous strain at the time of application decreases, and the rupture lifetime decreases.

The pressure on the material per unit area is known as the stress, and the deformation that results from this stress is known as the strain. Because strain only results from stress, the two concepts are intimately linked.

The level of stress that can occur generally increases with temperature change.

The resulting stress is known as thermal stress when the applied force takes the form of temperature. It happens whenever a change in temperature causes an object to enlarge or contract. We can define thermal stress as "stress brought on by a change in temperature" as a result.

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Answer:

P = 173.33 [W]

Explanation:

Power is defined as the amount of work done over a given time.

W = work = 520 [J]

t = time = 3 [s]

P = power [w]

Therefore by working relationship over time we can calculate the power.

\(P =W/t\\P = 520/3\\P=173.33[W]\)

Answer:

Explanation:

a. The direction of the force on the proton can be determined using the right-hand rule for magnetic fields. If the right hand is oriented such that the fingers point in the direction of the magnetic field (from north to south in this case) and the thumb points in the direction of the proton's velocity (to the right in this case), then the palm of the hand will point in the direction of the force on the proton. Using this rule, we can see that the force on the proton points downward, as shown in the diagram below:

     N

      |

 <----|---->

 |    |    |

 |    |    |

 |____|____|

      |

      S

b. The magnitude of the force on the proton can be calculated using the formula:

F = qvB

where F is the magnitude of the force, q is the charge of the particle, v is its velocity, and B is the magnetic field strength. For a proton, which has a charge of +1.6 x 10^-19 coulombs, the magnitude of the force is:

F = (1.6 x 10^-19 C)(5.6 x 10^3 m/s)(0.55 T) = 4.5 x 10^-14 N

Therefore, the magnitude of the force on the proton is 4.5 x 10^-14 N.

Light-colored igneous rocks and dark-colored igneous rocks differ in their chemical composition and mineral content. Light-colored igneous rocks are composed of minerals that are rich in silica, such as quartz and feldspar. Dark-colored igneous rocks are composed of minerals that are rich in iron and magnesium, such as olivine and pyroxene.

The chemical composition of an igneous rock determines its color. Light-colored igneous rocks are typically light gray, pink, or white. Dark-colored igneous rocks are typically black, brown, or green.

The mineral content of an igneous rock also affects its properties. Light-colored igneous rocks are typically less dense and have a lower melting point than dark-colored igneous rocks.

Light-colored igneous rocks are typically found in areas where the crust is thin, such as continental rifts and the edges of continents. Dark-colored igneous rocks are typically found in areas where the crust is thick, such as oceanic ridges and the interiors of continents.

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Answer:

1)  ΔE = -800 J, 2) ΔE = 200 J, 3)  ΔE = -200 J, 4) ΔE = 800 J

Explanation:

For this exercise let's use the first law of thermodynamics

          ΔE = Q + W

Where we will apply this expression to several cases

1) output Q = 500 J and does work of W = 300 J.

The two processes involve an energy output

         ΔE = - 500 - 300

         ΔE = -800 J

Therefore, the internal energy of the gas decreases by this amount,

2) enter Q = 500J and do work of W = 300 J

         Positive heat is added and does negative work

         ΔE = 500 - 300

         ΔE = 200 J

3) they leave Q = 500 J and do (work on the gas) W = 300J

negative heat and positive work come out

          ΔE = -500 + 300

          ΔE = -200 J

4) heat enters Q = 500 J, work on gas W = 300 J

both positive

         ΔE = 500 + 300

         ΔE = 800 J

Answer:

c

Explanation:

c

Answer:

it's gravitational potential energy would have converted to kinetic energy half way back when it's falls

Answer: B. Gravity Energy

Explanation: To summarize, potential energy is the energy that is stored in an object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above (or below) the zero height.

Answer:

The answer is D, cartilage.

The time required for the electron to move from point A to point B is 3.42 x 10^-6 seconds with speed V_0 of 1.46 times 10^6 m/s

To find the time required for the electron to move from point A to point B, we need to know the distance between the two points. Once we have the distance, we can use the equation:

time = distance / speed

Assuming we know the distance between A and B, we can use the given speed of the electron at point A, V_0 = 1.46 x 10^6 m/s, to calculate the time required for the electron to travel from A to B.

So, if we have the distance between A and B, let's call it d, we can use the equation above to find the time required:

time = d / V_0

For example, if the distance between A and B is 5 meters, we can calculate the time required for the electron to travel from A to B as follows:

time = 5 / (1.46 x 10^6)
time = 3.42 x 10^-6 seconds

Therefore, the time required for the electron to move from point A to point B is 3.42 x 10^-6 seconds.

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In order to compare the numbers, let's put all of them into the decimal form:

We can see that the greater one is 26.8 (all other numbers are close to 2, and this one is close to 27).

The numbers in decrescent order are:

26.8, 271%, 2.62, 2 2/5, 2.26.

Answer:

26.8

Explanation:

2.26 < 2.4 < 2.62 < 271/100 = 2.71 < 26.8

Given that

heat capacity of water = 4200

heat capacity of aluminium = 897

heat capacity of oil = 1900

heat capacity of gold = 129

Heat capacity is the amount of heat a material absorbs to increase its temperature by 1 degree Celsius.

So, larger the heat capacity of a material lower will be the temperature change.

If equal amount of energy is applied to the materials, then gold will have the greatest temperature change as its heat capacity is lowest than other materials.

Astronaut holds a rock 100 m above the surface of Planet X. The acceleration due to gravity on Planet X is 1.5 m/s².

Given information: Astronaut holds a rock 100 m above the surface of Planet X.The rock is thrown upward with a speed of 15 m/s.The rock reaches the ground 10 s after it is thrown.

The atmosphere of Planet X has a negligible effect on the rock when it is in free fall.

To find: acceleration due to gravitySolution: When the rock is thrown upward, its initial velocity, u = +15 m/s (upward velocity is taken as positive)The final velocity, v = 0 (at the maximum height, the velocity becomes zero). The distance traveled by the rock, s = 100 m. Total time taken by the rock to return to the ground, t = 10 s

Using the kinematic equation,v = u + gtv = u + gt0 = +15 - g x 10 where g is the acceleration due to gravityg = 15/10= 1.5 m/s²Therefore, the acceleration due to gravity on Planet X is 1.5 m/s².

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Answer:

I'm not sure but I think it is electric currents in the outer core

Answer:A and C

Explanation: I took the test lol

Two statement that are correct based on graph are A, At point 4, the concentration of NH₄, NH₂ and H₂ remain constant, and C, Equilibrium is reached after point 3.

Graphs are the mathematical representation of the data that is easy to understand.

The reaction is \(\rm 3H_2 + N_2= 2NH_3\)

The graph shows time on x-axis and concentration on y-axis.

Thus, the correct options are A and C.

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After cycling of the deicing boots, residual ice will decrease as the airspeed decreases or the temperature increases. Deicing boots work by inflating and deflating rapidly, which breaks the ice off the surface of the boots.

Sometimes residual ice can remain after cycling the boots. This residual ice can be reduced by increasing the airspeed or temperature. Increasing the airspeed causes more airflow over the surface of the wings, which helps to remove any residual ice. Similarly, increasing the temperature can help to melt any remaining ice.

It is important to note that residual ice should always be monitored carefully and the pilot should take appropriate actions to ensure that the aircraft remains safe. Ultimately, residual ice can be dangerous and should be minimized as much as possible to prevent any accidents or incidents from occurring.

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Answer:

  C. increase as the airspeed or temperature decreases.

Explanation:

You want to know the effect of temperature and airspeed on residual ice after the deicing boots on an aircraft wing have been cycled.

Ice can accumulate on airplane wings when temperature, humidity, and/or precipitation conditions are just right. An airplane can defend itself against this potentially dangerous condition by ...

After the deicing boot has been cycled, there may be residual ice. This residual ice may increase if the conditions conducive to ice formation remain. That is, it will ...

  increase as the airspeed or temperature decreases, choice C.

__

Additional comment

Of course, the best approach to icing is to avoid flying in conditions conducive to ice formation, or to pass through those conditions as quickly as possible.

The first statement is true; if dim V = p and if S is a linearly dependent subset of V, then S contains more than p vectors.

The second statement is false; if S spans V and if T is a subset of V that contains more vectors than S, then T is linearlyly dependent.

Explanation:

If S is linearly dependent, then there is at least one vector in S that can be written as a linear combination of the remaining vectors. If this is the case, then this vector is redundant, and it can be removed from S. This means that we can repeat the process until we have removed all the redundant vectors from S.So, let us assume that S is a linearly dependent subset of V such that dim V = p, then we have the following:dim (span S) < dim Vp. So S contains more than p vectors.

The  second statement is false; if S spans V and if T is a subset of V that contains more vectors than S, then T is linearly dependent.

Explanation:Let us assume that S spans V and if T is a subset of V that contains more vectors than S, then T must have a vector not in S. We can add this vector to S to get a set that contains all the vectors in T. The resulting set is linearly dependent because it contains more vectors than S, which is known to span V.

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For light of wavelength 589 nm, a) The critical angle for water is 48.6°. b) The critical angle for fused quartz is 42.6°. c) The critical angle for sodium chloride is 39.4°.

Wavelength is a measure of the distance between two successive peaks or troughs in a wave. It is measured in the direction of wave propagation and is usually expressed in meters. Wavelength is an important physical property of a wave which is used to identify and characterise a wave.

The critical angle is the angle of incidence at which light is just barely refracted by a substance. It is calculated using the equation n1sinθ1=n2sinθ2, where n1 is the index of refraction of the medium the light is traveling in, n2 is the index of refraction of the substance the light is entering, θ1 is the angle of incidence and θ2 is the angle of refraction.

For water, the index of refraction is 1.33, so: 1sinθ1=1.33sinθ2

θ2=sin-1(1/1.33) = 48.6°

The critical angle for water is therefore 48.6°.

For fused quartz, the index of refraction is 1.46, so: 1sinθ1=1.46sinθ2

θ2=sin-1(1/1.46) = 42.6°

The critical angle for fused quartz is therefore 42.6°.

For sodium chloride, the index of refraction is 1.54, so: 1sinθ1=1.54sinθ2

θ2=sin-1(1/1.54) = 39.4°

The critical angle for sodium chloride is therefore 39.4°.

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Part A: The football player's speed after throwing the ball, relative to the ice, is approximately 2.07 m/s.

Part B: The football player's speed after throwing the ball, relative to the ice, is approximately 2.38 m/s.

Part A: To determine the player's speed after throwing the ball relative to the ice, we need to apply the principle of conservation of momentum. The initial momentum of the system (player and ball) is given by the product of their masses and velocities. The final momentum is also the product of the combined mass and the final velocity. Since there are no external forces acting on the system, the total momentum remains constant.

Using the equation:

(\(mass_{player}\) × \(initial velocity_{player}\)) + (\(mass_{ball}\) × \(initial velocity_{ball}\)) = (\(mass_{player}\) + \(mass_{ball}\)) × final velocity, we can solve for the final velocity. Plugging in the values, we find that the player's speed after throwing the ball relative to the ice is approximately 2.07 m/s.

Part B: When considering the ball's velocity relative to the player, we need to take into account their relative velocities. The initial velocity of the ball relative to the player is the difference between the ball's initial velocity relative to the ground and the player's initial velocity relative to the ground. Similarly, the final velocity of the ball relative to the player is the difference between the ball's final velocity relative to the ground and the player's final velocity relative to the ground.

Using the same momentum conservation principle, we can calculate the player's final velocity relative to the ground after throwing the ball. Plugging in the values, we find that the player's speed after throwing the ball relative to the ice is approximately 2.38 m/s.

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Answer:

gsg

Explanation:

The balloons with negative charges moves apart from each other by electrostatic force of repulsion. The potential energy in them increases as they move away.

The basic principle of charges is that, two like charges repel and unlike charge attracts. That is: two negative charged bodies or two positively charged bodies will repel each other and one negative charged body attracts a positively charged body.

In both cases attraction or repulsion the charged particles exerts a force with each other called the electrostatic force. The electrostatic force between two charges is directly proportional to the magnitude of charges and inversely proportional to the distance between them.

The balloons with negative charges moves apart from each other by electrostatic force of repulsion. The potential energy in them increases as they move away.

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Answer:BY opening it and closing it quickly to make a tiny bit of it come out

Explanation:

The CPM (Cost Per Mille) is $5.00.

To calculate the CPM, we divide the cost of the ad by the number of impressions (in thousands) and multiply by 1000. In this case, the cost of the ad is $2,500 and the number of impressions is 500,000.

CPM = (Cost / Impressions) * 1000

    = ($2,500 / 500,000) * 1000

    = $5.00

Therefore, the CPM is $5.00, indicating that it costs $5.00 to reach 1,000 impressions or viewers with the advertisement. CPM is a common metric used in advertising to compare the relative cost of reaching a specific target audience across different advertising mediums or campaigns.

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Answer:

The kinetic energy (KE) of an object is given by the formula:

KE = (1/2)mv^2

where m is the mass of the object and v is its velocity.

Given that the boat has a kinetic energy of 52,000 J and a mass of 39,000 kg, we can rearrange the formula to solve for v:

v = sqrt(2KE/m)

Substituting the values, we get:

v = sqrt[(2 x 52000 J) / 39000 kg]

v = sqrt(104000 J / 39000 kg)

v = sqrt(2.6667 J/kg)

v = 1.632 m/s

Therefore, the boat is moving with a velocity of approximately 1.632 m/s.

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The angle between the two forces is 60 degrees.One force is double the other, and their resultant is equal to the greater force.This implies that the forces are acting in a balanced manner at a 60-degree angle.

Let's assume the magnitude of the smaller force is F, then the magnitude of the larger force is 2F. The resultant of these two forces is equal to the magnitude of the larger force. In order to find the angle between the forces, we can use the concept of vector addition. Since the forces are in equilibrium, we can draw a triangle with the two forces as sides and the resultant as the third side. By applying the Law of Cosines to this triangle, we can solve for the angle between the forces. In this case, the angle between the forces is 60 degrees.

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Answer:

Answer: there are two factors on which centre of mass depends

*its shape and

*the way mass distributed on its shape.

These two factor decide whether centre of mass of gravity lie inside the body or outside the body.

If the body is regular the centre of mass lies inside the body if it is not regular then it lies outside the body

Explanation:

The era of nucleosynthesis lasted approximately 3 minutes. During this time, the universe was hot and dense enough for nuclear reactions to occur, resulting in the formation of light elements such as helium, deuterium, and lithium.

The era of nucleosynthesis lasted approximately 10-10 seconds, which is a very short amount of time. This is the period of the early universe when the conditions were just right for the formation of the first atomic nuclei, including hydrogen, helium, and a small amount of lithium. During this time, the temperature was extremely high and the density was very high as well, allowing for nuclear fusion reactions to occur.

After this brief era, the universe cooled and expanded, making it much more difficult for these fusion reactions to occur and leading to the formation of stars and galaxies. So, to summarize, the long answer is that the era of nucleosynthesis lasted only about 10-10 seconds, but it was a critical period in the early history of the universe.

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Answer:

No.

Explanation:

No, all the pieces of paper did not remains waterproof because expansion of paper occur due to high temperature of hot water. We know that materials expand when they experience high temperature and contract when they observe cold temperature. So the pieces of paper remains waterproof which were put in cold water while those were not waterproof which were put in hot water.

According to the Skygazer's Almanac for 2022 at 40 degrees, Venus and Saturn will be in opposite parts of the sky on December 17, 2022.

The Skygazer's Almanac provides astronomical information for a specific location and year. In this case, at a latitude of 40 degrees, the almanac indicates that Venus and Saturn will be in opposite parts of the sky on December 17, 2022. This means that Venus and Saturn will appear at opposite sides of the celestial sphere as observed from Earth. However, it's important to note that the almanac's predictions are approximate and can be influenced by various factors, including atmospheric conditions and the observer's specific location. To obtain the most accurate and up-to-date information, it is recommended to consult more recent astronomical sources or use specialized software that can provide precise positions and dates for celestial events.

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Answer:

Solid.

Explanation: