The constellation Canis Minor has a binary star system consisting of Procyon A and Procyon B. Procyon A, at 3×1030kg, has 2.5 times the mass of Procyon B; and they are roughly 2×1012m apart. How does the force on Procyon A from Procyon B compare to the force on Procyon B from Procyon A?

Yes, if a body is floating in a liquid, the rise in the liquid level is equal to the body height. This phenomenon is known as Archimedes' principle.

Archimedes' principle says when a body is immersed in a fluid (liquid or gas), it experiences an upward buoyant force equal to the weight of the fluid displaced by the body. Buoyant forces act in the opposite direction to gravity.

When a body floats in a liquid, it displaces a volume of liquid equal to its volume. As a result, the liquid level rises by an amount equal to the height of the submerged part of the body.

This principle holds for objects that float or are partially immersed in a liquid, such as a buoyant boat or a floating object. However, if the body sinks completely into the liquid, the liquid level rise will no longer be equal to its height. Instead, it depends on the density and volume of the submerged object.

Answer:The powder of Kool Aid crystals are the solute. The water is the solvent and the delicious Kool Aid is the solution.... .-.

Explanation:

Answer:

my essay

i typed my my essay like u said

Answer:

a) \(V_2=8m/s\)

b) \(P_2=9.54*10^4 Pa\)

Explanation

From the question we are told that:

Initial Area of pipe  \(A_1=8.00 cm^2\)

Initial Fluid flow speed \(r_1 =320 cm/s,\approx 320*10^{-2}\)

Initial Pressure of \(\rho_1 =1.40*10^5 Pa\)

Final area of pipe \(A_2 =3.70 *10^{-2} cm^2\)

Density of acid \(\rho=1660kg/m^3\)

a)

Generally the equation for continuity is mathematically given by

\(A_1V_1=A_2V_2\\\\V_2=\frac{A_1*V_1}{A_2}\)

Since volume is directly proportional to rate of flow

\(V_2=\frac{8*320}{3.20} *10^{-2}\)

\(V_2=8m/s\)

b)

Generally the Bernoulli's equation is mathematically given by

\(p_1+\frac{1}{2}\rho v_1^2+\rho gh_1=P_2+\frac{1}{2}\rho v_2^2+\rho gh_2\\\\with\ h_1=h_2\\\\p_1+\frac{1}{2}\rho v_1^2=P_2+\frac{1}{2}\rho v_2^2\)

Therefore

\(P_2=P_1+\frac{1}{2}\rho(v_1^2-V_2^2)\\\\P_2=(1.40*10^5)+\frac{1}{2}(1660)(v_1^2-V_2^2)\)

\(P_2=9.54*10^4 Pa\)

To measure of a volume of 6 L using 5 L and 2 L is measure out 2 times volume of 5 L and subtract 2 times 2 L volume from it.

Volume is the measure of the 3-dimensional space occupied by matter, or enclosed by a surface, measured in cubic units.

The SI unit of volume is the cubic meter (m³), which is a derived unit. Liter (L) is a special name for the cubic decimeter (dm³).

If we have two measuring equipment:

To measure of a volume of 6 L we will simply follow the method below;

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Answer:

No

Explanation:

Acceleration = Velocity/Time

An example of where the velocity would be different is:

Acceleration = \(\frac{10\ m/s}{2s}=5\ m/s^2\) (automobile 1)

Acceleration = \(\frac{25 \ m/s}{5 s}=5\ m/s^2\) (automobile 2)

As you can see, the velocity for the first automobile is 10 m/s while the second one has a velocity of 25 m/s (with a greater time travelled) and both resulted in the same acceleration of 5 m/s².

Given the mass of the cell is 1 * 10⁻¹⁴ kg, the number of cells in the 65 kg person is  6.5 * 10¹⁵  cells.

The number of cells in a human is calculated as follows:

The mass of an average cell is ten times the mass of a bacterium.

The mass of a bacterium = 1 * 10⁻¹⁵ kg

mass of an average cell = 10 *  1 * 10⁻¹⁵ kg =  1 * 10⁻¹⁴ kg

Number of cells = mass of person/mass of cell

Number of cells = 65 kg/1 * 10⁻¹⁴ kg

Number of cells = 6.5 * 10¹⁵  cells.

In conclusion, the number of cells is obtained by dividing the mass of the person by the mass of a average cell.

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Note that the complete question is given below:

Assuming the mass of an average cell is ten times the mass of a bacterium (which is 10⁻¹⁵ kg): Calculate the number of cells in a human assuming the mass of the person is 10² kg.

Answer:

Owned all the land and wealth.

Answer:

The pharaoh owned all land and wealth.

Explanation:

pharaoh's were rulers in ancient Egypt so they were very rich.

Answer: I don't really see the answer choices.

Explanation:

The Sun is composed of helium and hydrogen. Option C.

The photosphere chromosphere and corona are all part of the Sun's atmosphere. Although the corona is sometimes called the solar atmosphere it is actually the sun's upper atmosphere. The sun's atmosphere includes features such as sunspots, coronal holes, and solar flares the sun is a star.

It's a huge spinning ball of hot gas. The sun is like a star in the night sky. Because we are so close it appears much larger and brighter than other stars. The sun is the center of the solar system and accounts for most of the mass of the solar system. Compared to the billions of other stars in the universe, the sun stands out. But for the Earth and the other planets orbiting around it, the Sun is a powerful focal point.

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Mass over density is a mathematical expression that represents the ratio of mass to density. It is calculated by dividing the mass of an object or substance by its density. Mathematically, it can be represented as:

The equation relating mass (m) and density (ρ) is given by:

m = ρ * V

where:

m is the mass of the object or substance,

ρ is the density of the object or substance, and

V is the volume of the object or substance.

This equation states that the mass of an object is equal to the product of its density and volume. It shows that mass is directly proportional to density and volume.

Gauss's law and charges of the same sign repel allows us to find the results for the questions about the charged plates are:

Gauss's law says that the electric flux through a Gaussian surface is proportional to the charge inside it.

         Ф = ∫ E . dA = \(\frac{q_{int}}{\epsilon_o } \)

where Ф is the flux, E the electric field, A the area, \(q_{int}\) the charge inside the surface.

They indicate that we have two metallic plates with a charge of 80 μC = 80 10⁻⁶ C in each one, since the plate is metallic, the electrons are free to move in it and repel each other, therefore the ones that are farthest from each other are placed, this is concentrated on the surface of the metal plate, therefore the charge inside the surface is zero.

Let's use Gauss's law to find the electric field, we define a Gaussian surface with a cylinder base parallel to the plate, in this case the field created by the charge is parallel to the normal of the surface of the plates.

              2 E A = \(\frac{q_{int}}{\epsilon_o} \)

The two comes from the fact that the electric field is emitted towards both sides of the plate.

The charge density on each plate is:

              σ = q A

Let's substitute.

             E A = \(\frac{\sigma A}{2 \ \epsilon_o} \)

The electric field is a vector magnitude, so vector addition must be used, see attached for the direction of the electric field.

              \(R_{total} = E_1+E_2\)

              \(E_{total} = \frac{\sigma}{\epsilon_o} \)

Let's calculate.

The charge density.

          \(\sigma = \frac{q}{l^2} \)

          \(\sigma = \frac{ 80 \ 10^{-6} } { 2.0 \ 2.0}\)

          σ = 20 10⁻⁶ C

The total electric field.

          E = \(\frac{20 \ 10^{-6} }{8.85 \ 10^{-12} } \)

          E = 2.26 10⁶ N/C

In conclusion, using Gauss's law and that charges of the same sign repel each other, we can find the result for the questions about the charged plates:

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Answer:

C. a = 15 N, b = 14 N

Explanation:

since a is pushing the box to the right and b to the left, it would only work if the force applied by a is the stronger so the only answer with the stronger force being a is C. a = 15 N, b = 14 N since the final resultant force would be 1 N to the right

Answer:

Its C

Explanation:

I did it on my own and it was correct.

the second question for this, the answer is 100 N

Answer:

526.5m

Explanation:

Given parameters:

Acceleration = 3m/s²

Initial velocity  = 21m/s

Final velocity  = 60m/s

Unknown:

Displacement = ?

Solution:

To solve this problem, we apply the right motion equation which is shown below;

     V²  = U²  + 2aS

  V is the final velocity

  U is the initial velocity

  a is the acceleration

 S is the displacement

 Insert the parameters and solve;

    60²  = 21² + 2(3)S

    3600 = 441 + 6S

    3600 - 441  = 6S

    3159  = 6S

       S = 526.5m

Given that,

Separated in time t = 3.00 μs

Separated in time t' = 9.00 μs

(a). We need to calculate the speed

Using formula of time dilation

\(t'=\dfrac{t}{\sqrt{1-\dfrac{v^2}{c^2}}}\)

\(\dfrac{t}{t'}=\sqrt{1-\dfrac{v^2}{c^2}}\)

\(\dfrac{v^2}{c^2}=1-\dfrac{t^2}{t'^2}\)

\(v=c\sqrt{1-\dfrac{t^2}{t^2}}\)

Put the value into the formula

\(v=c\sqrt{1-\dfrac{3.00^2}{9.00^2}}\)

\(v=0.942c\)

(b). The separation that Mark sees is just the time he sees between the pulse times the speed of light,

Since the first pulse is moving at that speed

We need to calculate the separation in space of the two pulses

Using formula of separation

\(x=ct'\)

Put the value into the formula

\(x=3\times10^{8}\times9\times10^{-6}\)

\(x=2700\ m\)

Hence, (a). The speed of mark relative to Suzanne is 0.942c.

(b). The separation in space of the two pulses is 2700 m.

Answer:

3.87 s

Explanation:

When the y component = 0, the ball is at its apex and 1/2 of the way through its flight.

 vy = 19 + at      where a = - 9.81 m/s

  0 = 19 - 9.81t shows the one-half-flight 't' = 1.94 s

      double this result to get total 't' = 3.87 s

Answer:

friction , magnetism etc

Answer:

the object's weight changes but its mass stays the same

Answer:

the object's weight changes but its mass stays the same

Explanation:

100% correct

Answer:

its air

give me thanks

Answer:

Air

Explanation:

give me a thanks its 100% right

Given that hotter blackbodies produce more energy than cooler blackbodies,  cooler red giants have much higher luminosities than much hotter white dwarfs.

The hotter blackbodies emits more light as compared to the cooler blackbodies over all the wavelength. A blackbody emits light over all wavelength. the red giant is a star , hydrogen is fused to helium core to stat the fusion reactions. this hydrogen fusion caused the star to expand. the sun becomes red giant it will swell up to size of earth orbit.  This gives a red color and make red giant much hotter. while the white dwarf comes after the red giant . white dwarf is also very hot but it is not hot enough to star fusion reaction in carbon and oxygen.

Thus, Given that hotter blackbodies produce more energy than cooler blackbodies,  cooler red giants have much higher luminosities than much hotter white dwarfs.

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The velocity of the large cart after the collision is approximately 0.0486 m/s in the opposite direction of its initial motion.

We can use the principle of conservation of momentum to find the speed of the large cart after the collision. According to this principle, the total momentum before the collision is equal to the total momentum after the collision.

The momentum (p) of an object is calculated by multiplying its mass (m) by its velocity (v). Therefore, the momentum of the small cart before the collision is:

p_small_before = (mass_small) * (velocity_small) = (0.300 kg) * (1.80 m/s) = 0.540 kg·m/s.

Since the large cart is at rest before the collision, its initial momentum is zero:

p_large_before = 0 kg·m/s.

After the collision, the small cart bounces back at a speed of 0.810 m/s. According to the law of conservation of momentum, the total momentum after the collision should equal the total momentum before the collision. Therefore, the momentum of the small cart after the collision is:

p_small_after = (mass_small) * (velocity_small_after) = (0.300 kg) * (-0.810 m/s) = -0.243 kg·m/s.

The momentum of the large cart after the collision is labeled p_large_after. Since the initial momentum of the large cart is zero and the momentum after the collision is determined by the momentum of the small cart, we can write:

p_large_after = -0.243 kg·m/s.

To find the speed of the large cart after the collision, we divide the momentum by its mass:

velocity_large_after = p_large_after / (mass_large) = (-0.243 kg·m/s) / (5.00 kg) = -0.0486 m/s.

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Answer:

a) ΔS = 14.46 J/k

b) ΔS = 70.76 J/k

Explanation:

The general formula to calculate the entropy change accompanied with a process is:

ΔS = ΔQ/T

where,

ΔS = entropy change for the process

ΔQ = Heat Transfer during the process

T = Absolute Temperature during the process

a)

In this case the heat transfer will be given as:

ΔQ = (ΔHfus)(N)

where,

ΔHfus = Molar Heat of Fusion of Tin = 7.029 KJ/mol

N = No. of moles of tin = 1 mol

Therefore,

ΔQ = (7.029 KJ/mol)(1 mol)

ΔQ = 7.029 KJ = 7029 J

and the absolute temperature is:

T = 213°C +273 = 486 k

using these values in the entropy formula, we get:

ΔS = 7029 J/486 k

ΔS = 14.46 J/k

b)

In this case the heat transfer will be given as:

ΔQ = (ΔHvap)(N)

where,

ΔHvap = Molar Heat of Vaporization of Carbon Dioxide = 15.326 KJ/mol

N = No. of moles of Carbon Dioxide = 1 mol

Therefore,

ΔQ = (15.326 KJ/mol)(1 mol)

ΔQ = 15.326 KJ = 15326 J

and the absolute temperature is:

T = 216.6 k

using these values in the entropy formula, we get:

ΔS = 15326 J/216.6 k

ΔS = 70.76 J/k

Answer:

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

hope this helps

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Explanation:

Answer:

Potential Energy is the stored energy in an object or system because of its position or configuration.

Explanation:

Example: Water at the top of a waterfall, before the precipice.

Answer:

20 seconds

Explanation:

Answer:

Acceleration Remains Constant and Velocity decreases.

Explanation:

Convection and density are related because convection is the transfer of heat through a fluid, such as air or water, due to differences in density.

Density is a measure of the amount of matter contained in a particular volume. It is essentially a way of measuring how tightly matter is packed together. Density is usually expressed in terms of mass per unit of volume, such as kilograms per cubic meter or pounds per cubic foot. In general, denser materials are heavier than less dense ones

When a fluid is heated, it expands and becomes less dense, causing it to rise. As it rises, it cools and becomes more dense, causing it to sink. This cycle of rising and sinking creates a convection current, which transfers heat from one place to another.

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Answer:

The other force is the weight of the student.

Explanation:

With respect to Newton's third law of motion, for the student to sit and balance on the chair, there must be two equal and opposite forces involved. The student applies his/ her weight on the chair which acts downwards, while the chair applies an equal but opposite force to the weight of the student.

The force applied by the chair on the student's body is counter balanced by the student's weight. Note that, if the weight of the student is greater than the opposing force from the chair, the chair would collapse.

Combined energy of the two sleds will be conserved when they collides.

Energy is nothing but the ability to do work. there are different energies in different form which are thermal energy, mechanical energy, electric energy and sound energy etc.

According to first law of thermodynamic, Energy neither be created nor be destroyed. it can only be transferred from one form into another form. Energy is expressed in joule (J). its dimensions are [M¹ L² T⁻²].

Energy is conserved throughout the motion,

according to conservation law of energy, initial energy is equal to final energy.

When two sleds coming in opposite direction, it is having mass as well as velocity. hence it has kinetic energy, when they get collide with each other some of total energy gets converted into sound energy as collision cause sound(boom). some of the energy will use to break the material which made the sled and remaining energy will convert in kinetic energy of broken sleds it can be moved in opposite direction or in same direction depending initial energies.

in this collision combined kinetic energy can be converted into sound energy, mechanical energy and again kinetic energy but totally energy is conserved.

Hence combined energy will be conserved.

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