How much work, in kj, can a spring whose spring con-stant is 3 kn/cm produce after it has been compressed 3 cm from its unloaded length?

Answer:

9×1/2×10=45J

Explanation:

\(w = f \times d \times \cot( \beta ) \)

f=9N

d=10m

cos(B)=1/2

The principles demonstrated in the carbon dioxide and water acidity experiment are evident in many real-life situations such as in the process of ocean acidification.

In the process of ocean acidification; as carbon dioxide dissolves in seawater, it reacts to form carbonic acid, which increases the acidity of the ocean. This increased acidity can harm many marine organisms, such as shellfish and coral, by making it more difficult for them to build and maintain their shells and skeletons.

Another example is the effect of carbon dioxide emissions from cars and factories on the acidity of rainwater. When carbon dioxide reacts with water in the atmosphere, it forms carbonic acid, which can make rainwater more acidic. This acid rain can damage buildings, trees, and other structures, and can also harm aquatic ecosystems by lowering the pH of rivers and lakes.

Overall, the principles demonstrated in the Carbon Dioxide and Water Acidity Experiment are relevant to many environmental issues and have important real-life implications.

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Answer:

B

Explanation:

Even though we may not see it, nor feel it, particles in a solid are moving -vibrating. The particles do not move past each other, only vibrate.

Answer:

B. x = 50, Y = 100 ,Z= 150

sorry if it's wrong

Answer:

Inertia depends upon the force applied .

the momentum = m * v

m : mass

v : velocity

momentum = 1 * 50 = 50 kg.m/s

Answer:

A) B) and E)

Explanation:

Answer:

18882.5728

Explanation:

Calculator.

Answer:

47.200,432

Explanation:

6.02 × 104 = 628,08

628.08 × 7,54 = 4720,6432

4720,6432 × 10 = 47.206,432

47.206,432 - 6 = 47.200,432

Answer:

repeat using same variables

Explanation:

have peer repeat using same variables

As the proton moves in a region of space with a non zero electric field, the electric potential energy of the system decreases, and the electric potential that the proton experiences increases.

As a proton is released from rest in a region of space with a non-zero electric field, the electric potential energy of the system decreases. As the proton moves, it experiences a higher electric potential.
When an electron is released from rest in a region of space with a non-zero electric field, the electric potential energy of the system increases. As the electron moves, it experiences a lower electric potential.

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Answer:

All atoms have a dense central core called the atomic nucleus. Forming the nucleus are two kinds of particles: protons, which have a positive electrical charge, and neutrons, which have no charge. All atoms have at least one proton in their core, and the number of protons determines which kind of element an atom is.

Explanation:

Answer:

Speed is a time for how long an object is moving

Velocity is the direction of an object

A. Jupiter largest and most massive planet in the solar system

Jupiter has a huge permanent storm that looks like a red spot in images

Jupiter has at least 61 moons orbiting it, some of which are very large

Jupiter located closer to the sun than Kuiper Belt

Jupiter came on fifth number from the sun and the Jupiter is the massive planet present in our solar system. It contains the big storms like great red spot. The surface of the Jupiter is gas made giant but the surface of the Jupiter is not solid, but it may have a solid inner core about the size of Earth.

The Jupiter contain at least 61 moons which orbiting the Jupiter . The life on the Jupiter is impossible because the Jupiter contain very much pressure, it has volatile surface and the temperature of the Jupiter is very hot than that of the earth.

So we can conclude that option A is the right answer.

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The induced emf in the loop at 0.5s is -0.006301V and at 1.0s is -0.01265V. The magnetic flux is the number of magnetic field lines that move through a surface.

Given that, B = (0.31t i + 0.55t^2 k)T and a square loop of side 17cm lies in the xy plane.At time t = 0.5 sInduced emf, e = -N dΦ/dtWhere, N = number of turnsΦ = Magnetic flux= BA = B (a)² = (0.31 x 0.5) x (0.17)² = 0.006361JWhere a = 0.17m is the length of the side of the square loop.dΦ/dt = dB/dt * A = [(0.31i + 1.1tk)T/s] * (0.17m)²= 0.006301Vi.e., e = -N dΦ/dt= -1 x 0.006301 = -0.006301V

At time t = 1.0 sInduced emf, e = -N dΦ/dtΦ = Magnetic flux= BA = B (a)² = (0.31 x 1.0) x (0.17)² = 0.01272JWhere a = 0.17m is the length of the side of the square loop.dΦ/dt = dB/dt * A = [(0.31i + 1.1tk)T/s] * (0.17m)²= 0.01265Vi.e., e = -N dΦ/dt= -1 x 0.01265= -0.01265V, The number of magnetic field lines that pass through a surface perpendicularly is referred to as magnetic flux.

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The consequences of an equation involving the rest mass (m0) of a particle and the speed of light (c). It asks about the outcome when a specific condition, denoted by "? 55," is met.

Einstein's mass-energy equivalence equation (E = m0c^2), the rest mass (m0) of a particle and the speed of light (c) are involved. When the condition "? 55" is mentioned, it is unclear what specific comparison or action is being referred to. Without further information, it is challenging to determine the consequences or outcome implied by this condition in relation to the given equation. Additional context or clarification would be required to provide a more specific explanation.

It is important to note that Einstein's mass-energy equivalence equation is a fundamental equation in physics, stating that energy (E) is equal to the product of the rest mass (m0) of a particle and the square of the speed of light (c^2). This equation highlights the profound connection between mass and energy, implying that mass can be converted into energy and vice versa. It forms the basis of concepts such as nuclear reactions, particle accelerators, and the understanding of the immense energy released in processes like nuclear fission and fusion. However, without a clear interpretation of the condition "? 55" in relation to the equation, it is not possible to provide a specific explanation of its consequences.

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Answer:

I believe you are talking about Emile Durkheim

Explanation: Fun Fact:

He is most well known as the author of On the Division of Social Labor The Rules of Sociological Method, , and The Elementary Forms of Religious Life

The environment where sediments are deposited  can relate some information about the  the rock that eventually forms.

Depositional environment  can be described as the part of the earth surface  which posses certain chemical, biology, and physics characteristics where sediments are laid on.

It should be noted that  the depositional environments, could be continental as well as  marginal marine, and marine environments, however the in geology the Sediment serves as the solid material  which can be transported and deposited in the location that is different entirely from the normal  location however the Sediment can  posses rocks as well as minerals, along with remains of plants and animals.

In conclusion, the environment where sediments are deposited   is ablke to give some of the  neccessary information about the  the rock that eventually forms.

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A. Assume incompressible flow

Since volumtric flow rate will be same in both section

Q1 = Q2

A1*V1 = A2*V2

V2 = A1*V1/A2

V2 = 6.9*10^-4*288*10^-2/(3.3*10^-4)

V2 = 6.02 m/sec

B. using bernoulli's equation:

P1/rho + v1^2/2 + g*h1 = P2/rho + v2^2/2 + g*h2

Since pipes are horizontal

h1 = h2

P1/rho + v1^2/2 = P2/rho + v2^2/2

P2 = P1 + (v1^2 - v2^2)*rho/2

P2 = 1.5*10^5 + (2.88^2 - 6.02^2)*1100/2

P2 = 1.35*10^5 Pa

The rate of change in position of an object in any course. Speed is measured because the ratio of distance to the time wherein the distance became included. Speed is a scalar amount because it has handiest route and no significance.

Velocity can be notion of as the rate at which an object covers distance. A quick-moving object has a high speed and covers a notably big distance in a given amount of time, whilst a sluggish-shifting item covers a relatively small amount of distance in the same amount of time.

The primary unit or the S.I. unit of velocity is m/s or ms?¹.

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Answer:

Average speed will be 50km/hr

Explanation:

Distance/Time

100/2

50kmph

plz mark as brainliest

Answer:

50km/hr

Explanation:

avgspeed=Δdistance/Δtime

Δd=100km

Δt=2hr

=100km/2hr

=50km/hr

Answer:

A

Explanation:

Answer:

Brazil, France, Spain ,Puerto rico,Venezuela, Yemen

Explanation:

Acceleration due to gravity is 9.8 m/s² then the book weighs 3.06 kg in total.

where d denotes the separation between the object's and the earth's centers. The acceleration of gravity is denoted by the symbol g in the first equation above. Its value on Earth is 9.8 m/s2. Alternatively put, the acceleration of gravity at sea level on earth's surface is 9.8 m/s2. Weight of a body on the moon is calculated as follows: mass of the body x lunar gravitational acceleration (30 x 1.62 = 48 N).

Mass times Gravitational Acceleration equals weight.

Weight plus gravitational acceleration equals mass.

mass = 30N ÷ 9.8 m/s²

mass = 3.06 kg

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The element of the discrete sequence corresponding to the function f(t) = t with k = 3 and t = 6.5 seconds is 19.5 seconds (rounded to the nearest first decimal place).

To find the element of the discrete sequence corresponding to the function and t = 6.5 seconds, we can substitute the given value of t into the function and multiply it by the value of k.

f(t) = t

f(6.5) = 6.5

Now, multiply the result by k = 3:

Element = 6.5 * 3 = 19.5

Therefore, the element of the discrete sequence corresponding to the function f(t) = t with k = 3 and t = 6.5 seconds is 19.5 seconds (rounded to the nearest first decimal place).

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The overall momentum of a closed system stays constant if no external forces are acting on it, according to the law of conservation of momentum. The relationship between mass and speed is known as momentum.

The overall momentum of a closed system stays constant if no external forces are acting on it, according to the law of conservation of momentum. The relationship between mass and speed is known as momentum.

According to mathematics, the following can be said of this law: The initial momentum, which existed before any interactions, and the final momentum, which followed those interactions, are equivalent in an isolated system. This indicates that, both before and after an event, the system's overall momentum, made up of all its objects, is unaffected.

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Answer:

The pressure at the bottom of the river is less than that at the bottom of the lake.

Explanation:

From Bernoulli's equation, the pressure difference is given by

ΔP = ρgΔh + ρ(v₂² - v₁²)/2 where ρ = density of water, g = acceleration due to gravity, Δh = depth, v₁ = velocity at top, v₂ = velocity at bottom

For the lake, v₁ = v₂, since the velocity at the top and bottom are the same. So,

ΔP₁ = ρgΔh + ρ(v₁² - v₁²)/2 = ρgΔh + 0 = ρgΔh

P₂ - P₁ = ρgΔh

P₂ = P₁ + ρgΔh

For the river, v₁ < v₂, since the velocity at the top of the river is greater than at the bottom.

So,

ΔP₂ = ρgΔh + ρ(v₂² - v₁²)/2.

Since  v₁ < v₂, ρ(v₂² - v₁²)/2 will be negative,

So,

ΔP₂ = ρgΔh - ρ(v₂² - v₁²)/2.

Since ρ(v₂² - v₁²)/2 is negative, making ΔP less than that in the lake.

So, ΔP₂ = ΔP₁ -  ρ(v₂² - v₁²)/2.

ΔP₂ = P₃ - P₁

P₃ - P₁ = P₂ - P₁ -  ρ(v₂² - v₁²)/2.

P₃ = P₂ - ρ(v₂² - v₁²)/2.

where P₃ = pressure at bottom of the river and P₂ = pressure at bottom of the lake and P₁ = atmospheric pressure at top of river and lake respectively.

Since the factor ρ(v₂² - v₁²)/2 is removed from the pressure at the bottom of the lake, the pressure at the bottom of the river is therefore less than that at the bottom of the lake.

Resistance (R) = 9.375 ohm (Ω)

Steps:

\(R = \frac{V}{I} \)

\( = \frac{12 \: volt}{1280 \: milliampere} \)

\( = \frac{12 \: volt}{1.28 \: ampare} \)

\( = 9.375 \: ohm (Ω)\)

Answer:

The answer is B

Explanation:

Only things that are moving have kinetic energy, therefore B is the only correct answer