The mining-resource cycle determines the use of ore materials. Which step is not part of the cycle?

A)
exploring and extracting ores
B)
refining ores and creating products from ore materials
C)
marketing and selling products that use ore materials
D)
recycling and disposing of wastes from the steps and the products

The formula for calculating density is expressed as

Density = mass/volume

From the information given,

mass of empty pycnometer = 10.2

mass of the same pycnometer with an unknown liquid is 21.8.

Mass of unkown liquid = 21.8 - 10.2 = 11.6

volume of unknown liquid = 7

Thus,

Density = 11.6/7

Density = 1.7 g/ml

Answer:

Option 2

Explanation:

This is the definition of the plum-pudding model.

Heat will flow from object 1 to object 2, as heat always flows from hotter objects to colder objects.

Heat will flow from object 1 to object 2 because heat will always flow from the object with the higher temperature (object 1) to the object with the lower temperature (object 2). This is known as the 1st Law of Thermodynamics, and is related to the concept of entropy.

When the two objects are brought in contact, there will be an exchange of energy in the form of heat. The molecules in object 1 will be moving faster than the molecules in object 2, and so they will transfer some of their kinetic energy to the molecules in object 2, causing them to move faster and the temperature of object 2 to increase. This process will continue until both objects reach the same temperature.

The amount of heat transferred between the two objects is determined by the following equation:

Q = mc∆T

Where Q is the amount of heat transferred, m is the mass of the object, c is the specific heat capacity of the object, and ∆T is the change in temperature between the two objects.

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The answer to your question is (c): each point of a light-emitting object sends an infinite number of rays. This is because light is a form of electromagnetic radiation that is emitted in all directions from a source.

Each point on an object emits light in all directions, meaning that an infinite number of rays are sent out from each point. This is why we can see objects from different angles and perspectives - because light is being emitted in all directions from each point on the object.

However, it's important to note that not all of these rays will necessarily reach our eyes, as they can be blocked or scattered by other objects in the environment.

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Answer:

15 and Increasing

Explanation:

Hope this helps

Have a wonderful day and many more to come

Alexis~

~A.K.A Moon~

Hi There, Buddy!

To solve this problem, let us divide the entire motion into 2 phases

1.) When the elevator is moving with an acceleration

2.) When the elevator has a deceleration

For the first half -

u = 0 , a = 0.6 , t = t1

v = 0.6(t1)  ---------- ( 1 )

s = 1/2 x 0.6 x (t1)^2 = 0.3(t1^2) -------- ( 2 )

For the second half -

u = 0.6(t1) , a = -0.8 , v = 0

0.6 x (t1) = 0.8 (t2) ----> 3(t1) = 4(t2) ---------- ( 3 )

0.36(t1)^2 = 1.6 s2 ---------- ( 4 )

Now, we know that the total time taken is 10 seconds

------- t1 + t2 =10 , 3t1 = 4t2 ---- t1 = 40/7 , t2 = 30/7

Now, substitute values of t1 and t2 in s1 and s2 and add both s1 and s2 to get total distance travelled.

PLEASE MARK AS BRAINLIEST!

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Independent is type of food

Dependent is the growth

Explanation:

Independent= What "I" Change: Food

Dependent= Depends on what I change:Growth

Answer:

A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays.

Explanation:

its right dawg  

Answer Maybe try 400

Explanation:

Multiply

Answer:

16 Newtons

Explanation:

The equation for work is Joules = Force x Distance(Meters). Substituting in the values leaves us with 80 = F * 5. Evaluating this equation, we can conclude that the amount of force used was in fact 16 Newtons.  

Answer:

The mass of any amount of a solid, liquid, or gas relative to its volume is called density.

Answer: The mass of any amount of a solid, liquid, or gas relative to its volume is called density.

The equivalent resistance between points A and B in the diagram is 22 Ω

We shall begin by obtaining the equivalent resistance in parallel (i,e the three 6 Ω resistor). Details below:

1/Rₜ = 1/R₁ + 1/R₂ + 1/R₃

1/Rₜ = 1/6 + 1/6 + 1/6

1/Rₜ = 3/6

1/Rₜ = 1/2

Rₜ = 2 Ω

Finally, we shall determine the equivalent resistance between A and B (i.e series arrangement). Details below:

R = R₁ + R₂ + R₃ + R₄ + R₅ + R₆ + R₇ + R₈ + R₉ + R₁₀ + R₁₁

R = 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2

R = 22Ω

Thus, we can conclude that the equivalent resistance is 22 Ω

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The falling flask has both kinetic and potential energy. As it falls, its potential energy decreases while its kinetic energy increases. At the point of impact with the floor, all the potential energy is converted to kinetic energy.

When the flask is falling from the edge of the table towards the floor, its energy is changing from potential energy to kinetic energy. Initially, the flask has potential energy due to its position above the ground. As it falls, it gains kinetic energy due to its motion. At the point where the flask is about to hit the floor, its potential energy is at a minimum, and its kinetic energy is at a maximum. However, it is important to note that the energy of the system is conserved, according to the law of conservation of energy. This means that the sum of the potential energy and kinetic energy of the system remains constant. As the potential energy decreases, the kinetic energy increases by an equal amount. Therefore, the energy of the flask is not just "mostly kinetic" or "mostly potential," but rather a combination of both potential and kinetic energy throughout its fall.

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Answer:

b d c a

Explanation:

Correct option is:- C) Work is a measure of how much energy a force transfers.

The y-intercept of the lens represents the focal length of the lens.

The y-intercept of a lens refers to the point where the incident rays, parallel to the principal axis, converge or appear to diverge after passing through the lens. In other words, it represents the distance from the lens to the focal point.

When an object is placed between the focal point and the lens, a specific type of image is produced. This situation is known as an object placed in front of a converging lens. The characteristics of the image formed in this case are as follows:

1. Type: The image is virtual, meaning it cannot be projected onto a screen. It can only be seen when looking through the lens.

2. Orientation: The image is upright. It appears in the same orientation as the object.

3. Size: The image is magnified compared to the object. It is larger in size.

These three characteristics hold true when the object is positioned between the focal point and the lens. It is important to note that the specific values of the image's size and magnification would depend on the specific distance of the object from the lens and the focal length of the lens.

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The ∆G°vap of butane at 1 atm and 228.5 K is +3.6 kJ/mol.

The standard Gibbs free energy change of vaporization (∆G°vap) can be calculated using the following equation:

∆G°vap = ∆H°vap - T∆S°vap

where ∆H°vap is the standard enthalpy change of vaporization, ∆S°vap is the standard entropy change of vaporization, and T is the temperature in Kelvin.

Substituting the values given for butane at 1 atm and 228.5 K:

∆H°vap = 22.4 kJ/mol

∆S°vap = 82.3 J/(mol K)

T = 228.5 K

Converting the units of ∆S°vap to kJ/(mol K):

∆S°vap = 82.3 J/(mol K) / 1000 J/(kJ) = 0.0823 kJ/(mol K)

∆G°vap = (22.4 kJ/mol) - (228.5 K)(0.0823 kJ/(mol K))

∆G°vap = 22.4 kJ/mol - 18.8 kJ/mol

Therefore, the ∆G°vap of butane at 1 atm and 228.5 K is +3.6 kJ/mol.

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Answer:

Jorge wanted to know where the apples were

Explanation:

Ya see, I don't want to explain, cuz I guessed. Also I'm on episode 499 of naruto so yeah

Answer:

B:Jorge wanted to know where the apples were.

Explanation:

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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Answer: Gravitational forces are action-at-a-distance forces

Explanation:

Gravitational forces are action-at-a-distance forces that act between two objects even when they are held some distance apart. For example If you watch a roller coaster car move along its course, then you are witnessing an action-at-a-distance.

The least value of x the particle can reach is 8 m, the greatest value of x is 0 m, the maximum kinetic energy is 2 J, and it occurs at x = 8 m. The expression for F(x) as a function of x is \(4e^(-x/4) - xe^(-x/4)/2 N\). The force F(x) is equal to zero at x = 8 m.

(a) To find the least value of x the particle can reach, we need to determine the point where the potential energy is at its minimum. We can do this by finding the point where the derivative of the potential energy function is zero:

\(dU/dx = -4e^(-x/4) + xe^(-x/4)/2 = 0\)

Simplifying this equation gives:

\(-4e^(-x/4) + xe^(-x/4)/2 = 0\)

Multiplying both sides by \(2e^(x/4)\) gives:

-8 + x = 0

Solving for x, we find:

x = 8

Therefore, the least value of x the particle can reach is 8 m.

(b) To find the greatest value of x the particle can reach, we need to determine the point where the potential energy is zero. We can set U(x) equal to zero and solve for x:

\(-4xe^(-x/4) = 0\)

Since the exponential term can never be zero, the only solution is x = 0. Therefore, the greatest value of x the particle can reach is 0 m.

(c) The maximum kinetic energy of the particle occurs when the potential energy is at its minimum. From part (a), we found that the minimum potential energy occurs at x = 8 m. At this point, the potential energy is 0 J, so the entire energy is in the form of kinetic energy. Therefore, the maximum kinetic energy of the particle is 2 J.

(d) The value of x at which the maximum kinetic energy occurs is the same as the value of x at which the potential energy is at its minimum, which is x = 8 m.

(e) To determine an expression for F(x) as a function of x, we can calculate the force as the negative derivative of the potential energy:

F(x) = -dU/dx

Differentiating the potential energy function \(U(x) = -4xe^(-x/4)\) with respect to x gives:

\(F(x) = -(-4e^(-x/4) + xe^(-x/4)/2)\)

Simplifying this expression gives:

\(F(x) = 4e^(-x/4) - xe^(-x/4)/2\)

Therefore, the expression for F(x) as a function of x is \(4e^(-x/4) - xe^(-x/4)/2 N\).

(f) To find the value of x at which F(x) = 0, we can set the expression for F(x) equal to zero and solve for x:

\(4e^(-x/4) - xe^(-x/4)/2 = 0\)

Multiplying both sides by\(2e^(x/4)\) gives:

8 - x = 0

Solving for x, we find:

x = 8

Therefore, for x = 8 m, the force F(x) is equal to zero.

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The work  was done to move the block  across the floor  is 400 Joule.

The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

A spring balance can be used to calculate the Force. The Newton is the SI unit of force.

Force applied on the block: F = 40 N.

Displacement of the box = 10 m.

Hence, work  done to move the block = Force × Displacement

= 40 × 10 joule

= 400 joule.

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Answer:

The top producing states are Texas, Oklahoma, New Mexico, Wyoming, and Louisiana, which produce more than 50 percent of U.S. natural gas

The top states in USA that is likely to be a large producer of natural gas is Texas. The 24 .6 % of the overall production of natural gas is in Texas.

Natural gas is a type of fossil fuels. It is highly flammable hydrocarbon primarily consists of methane gas. In 2016, natural gas accounted for 33 percent of all energy produced in the US, making it the greatest energy source in the nation.

Since July 2015, natural gas has become the main fuel used to generate electricity in the US. With an average wellhead value of $2.66 per thousand cubic feet and a total wellhead value of $67.3 billion, the United States produced 25.3 trillion cubic feet of marketed natural gas in 2012.

The top 5 natural gas producing states in US are Texas, Pennsylvania, Louisiana, West Virginia, Oklahoma. In which the top one is Texas.

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1). Wrap more turns of the wire around the nail.

2). Increase the electrical current through the wire. (Do this by inserting another battery in the circuit, in series with the first one.)

Answer:

d= 0.93 kg/m3

Explanation:

density= mass/volume

mass is given

volume= 0.4*0.2*0.7

then fill in the figures

Answer:

B.

Goals are scored by kicking the ball through goalposts.

Explanation:

Answer:

mass 3.67 kg, density 600 kg/m3) is fitted

with lead (density 1.14 * 10^4 kg/m3) so that it floats in water with

0.900 of its volume submerged. Find the lead mass if the lead is fitted

to the block’s (a) top and (b) bottom.

The correct option is A, the stick's angular momentum is measured at a magnitude of  \(0.0394\:kg . m^2/s\).

In this case I is given as;

\(I = 1/12\:(m*L^2)\\I = 1/12\:( 0.135 * 1^2)\\I = 0.01125\:kg\:m^2\\\)

Following that, the angular momentum may be computed as

\(M = 0.01125\:kg\:m^2*3.50\:rads/s\\M = 0.039375\:kg\:m^2/s\\M = 0.0394\:kg\:m^2/s\)

The rotating motion of an object around an axis is described by the fundamental idea of angular momentum in physics. It is a vector quantity that is affected by the mass, velocity, and separation from the axis of rotation of the object. The ratio of an object's moment of inertia to its angular velocity determines how much angular momentum it has.

An object's angular momentum measures how much it rotates and how challenging it is to halt that revolution. The angular momentum of an object increases with its moment of inertia and angular velocity. Since angular momentum is conserved in isolated systems, a system's overall angular momentum stays constant until it is affected by an outside torque.

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Complete Question:-

A uniform 135-g meter stick rotates about an axis perpendicular to the stick passing through its center with an angular speed of 3.50 rad/s. What is the magnitude of the angular momentum of the stick?

A) 0.0394 kg · m^2/s

B) 0.473 kg · m^2/s

C) 0.0739 kg · m^2/s

D) 0.158 kg · m^2/s

E) 0.0236 kg · m^2/s

The x-component of the object's acceleration (ax) is 3.98\(m/s^2\)and the y-component of the object's acceleration (ay) is 10.61\(m/s^2\).

We can use the following equations to solve for the x and y components of acceleration:

ΣFx = max

ΣFy = may

we can use trigonometry:

F1x = F1 cos(45°)

F1y = F1 sin(45°)

F2x = F2

F2y = 0

F3x = -F3

F3y = 0

Substituting the x and y components, we have:

ΣFx = F1x + F2x + F3x = F1 cos(45°) - F3

ΣFy = F1y + F3y = F1 sin(45°)

Now we can solve for ax and ay:

ΣFx = max

F1 cos(45°) - F3 = 1.4ax

ax = (F1 cos(45°) - F3) / 1.4

Substituting the given values of F1 and F3, we have:

ax = [(20 N) cos(45°) - (15 N)] / 1.4

ax = 3.98\(m/s^2\)

ΣFy = may

F1 sin(45°) = 1.4ay

ay = (F1 sin(45°)) / 1.4

Substituting the given value of F1, we have:

ay = (20 N sin(45°)) / 1.4

ay = 10.61\(m/s^2\)

Therefore, the x-component of the object's acceleration (ax) is 3.98 \(m/s^2\) and the y-component of the object's acceleration (ay) is 10.61\(m/s^2\).

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The forces in (Figure 1) act on a 1.4 kg object.

a) What is the value of ax, the x-component of the object's acceleration? Express your answer with the appropriate units.

b) What is the value of ay, the y-component of the object's acceleration? Express your answer with the appropriate units.

Answer:

1. 431.2newtons

2. 1.47meters per second squared

Explanation:

f=ma

force of friction=normal force×coefficient of friction

normal force = mass× gravity

1.

nf=110kg × 9.8m/s^2 = 1078newtons

f=nf×cf

f=1078×.4=431.2

1

f=1078×.25=269.5

431.2-269.5=161.7

161.7=110kg× a

a=1.47