Evaluate the magnitude of gravitational force between two 5-kg spherical steel balls separated by a center-to center distance of 15 cm.

true

think of a hurricane , for it to move it needs energy from the water (warm water).and one it gets on land which has less specific heat in it the hurricane ends

Answer:

True

Explanation:

Edge 2022

The current in the circuit is  ≈ 2.07 amperes (A)

A current circuit is a closed path through which electric current can flow. It typically consists of a power source, such as a battery or generator, a load, such as a light bulb or motor, and conductive wires or other components that connect the power source and load to form a complete path for the current to flow.

The current in the circuit can be calculated using the formula:

current = charge / time

In this case, the charge moved around the circuit is 60 coulombs and the time taken is 29 seconds. Thus, the current in the circuit is:

current = 60 coulombs / 29 seconds

current ≈ 2.07 amperes (A)

Therefore, The current in the circuit is  ≈ 2.07 amperes (A)

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To find the frequency of a photon that has the same momentum as a neutron moving with a speed of 1200 m/s, we can use the momentum-energy relation for photons and the momentum equation for particles.

The momentum of a photon is given by: p_photon = h / λ

where p_photon is the momentum of the photon, h is the Planck constant (approximately 6.626 × 10^(-34) J·s), and λ is the wavelength of the photon.

The momentum of a particle, such as a neutron, is given by:

p_particle = m_particle * v_particle

where p_particle is the momentum of the particle, m_particle is the mass of the particle, and v_particle is the velocity of the particle.We know the velocity of the neutron (v_particle = 1200 m/s). Let's assume the mass of the neutron is approximately equal to 1 atomic mass unit (1 u) or 1.67 × 10^(-27) kg.

Setting the momentum of the photon equal to the momentum of the neutron: h / λ = m_neutron * v_neutron

λ = h / (m_neutron * v_neutron)

Substituting the known values:

λ = (6.626 × 10^(-34) J·s) / (1.67 × 10^(-27) kg * 1200 m/s)

Calculating the wavelength:

λ ≈ 2.948 × 10^(-15) m

To find the frequency of the photon, we can use the wave equation:

c = λ * f

where c is the speed of light (approximately 3.00 × 10^8 m/s) and f is the frequency of the photon.

Solving for frequency:

f = c / λ

Substituting the known values:

f = (3.00 × 10^8 m/s) / (2.948 × 10^(-15) m)

Calculating the frequency:

f ≈ 1.018 × 10^23 Hz

Therefore, the frequency of the photon that has the same momentum as a neutron moving with a speed of 1200 m/s is approximately 1.018 × 10^23 Hz.

Now, let's move on to the second question:

The de Broglie wavelength of an electron is given by:

λ = h / (m * v)

where λ is the de Broglie wavelength, h is the Planck constant, m is the mass of the electron, and v is the velocity of the electron.

To find the kinetic energy of the electron, we can use the relation:

K.E. = (1/2) * m * v^2

Given that the de Broglie wavelength is 2.5 Å (2.5 × 10^(-10) m), we can rearrange the de Broglie wavelength equation to solve for the velocity:

v = h / (m * λ)

Substituting the known values:

v = (6.626 × 10^(-34) J·s) / ((9.11 × 10^(-31) kg) * (2.5 × 10^(-10) m))

Calculating the velocity:

v ≈ 1.078 × 10^6 m/s

Using this velocity, we can calculate the kinetic energy:

K.E. = (1/2) * (9.11 × 10^(-31) kg) * (1.078 × 10^6 m/s)^2

Calculating the kinetic energy

K.E. ≈ 5.027 × 10^(-19) J

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Answer:

the heating method in here is conventional heating due to the warn air goes to the top bunk whereas the cold air sinks down

The SI unit of the proportionality constant G is given as

[G]  = [M]^3 / [Kg  s²]

Newton's law of universal gravitation states that  every particle attracts every other particle in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

We substitute [kg]=[M], [m]=[L], and [F]-[kg x m] / [s²]- [M] [L]/ [T²]

into

Newton's law of universal gravitation to obtain

[M][L] [G][M] [T [CF

Solving for [C] then gives

m³

[G] = [L]^3  / [M][T]² kg

[G]  = [M]^3 / [Kg  s²]

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Answer:

Fun facts about matter

States of Matter: Facts

Matter is all around us. Matter is the air you are breathing. ...

Solids. Matter that is composed of atoms packed tightly together are known as solids. ...

Liquids. Liquids do not hold their shape at room temperature. ...

Gases. ...

Change of State. ...

More About Atoms. ...

Elements. ...

Compounds.

Size exclusion chromatography is the method by which scientists determine the molecular size (not the weight), of a particular substance.

Size-exclusion chromatography (SEC), also known as molecular sieve chromatography, is a chromatographic method in which molecules in solution are separated by their size, and in some cases molecular weight. It is usually applied to large molecules or macromolecular complexes such as proteins and industrial polymers.

Typically, when an aqueous solution is used to transport the sample through the column, the technique is known as gel-filtration chromatography, versus the name gel permeation chromatography, which is used when an organic solvent is used as a mobile phase. The chromatography column is packed with fine, porous beads which are commonly composed of dextran, agarose, or polyacrylamide polymers. The pore sizes of these beads are used to estimate the dimensions of macromolecules.

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The magnitude of the vector sum = 5.01 m

Step 1: Find the horizontal and vertical components of vector C

Step 2: Find the horizontal and vertical components of vector D

Step 3: The vector sum (A) is found by adding the x and y componets of vectors C and D

The vector sum is therefore:

Step 4: The magnitude of the vector sum is therefore:

The magnitude of the vector sum = 5.01 m

(a) The hunter and canoe move to the right with a velocity of 0.093 m/s after the spear is released.

(b) The hunter and canoe would move to the right with a velocity of 0.047 m/s after a spear of greater mass is thrown at the same velocity.

To solve this problem, we can use the conservation of momentum principle, which states that the total momentum of a system before an event is equal to the total momentum of the system after the event, as long as there are no external forces acting on the system. In this case, the system consists of the hunter, canoe, and spear.

Before the spear is released, the total momentum of the system is zero, since everything is stationary:

m1v1 + m2v2 + m3v3 = 0

where;

After the spear is released, the momentum of the spear changes from mv to 0, where m is the mass of the spear and v is its velocity. This change in momentum is balanced by an equal and opposite change in the momentum of the hunter and canoe. Let's assume that the hunter and canoe move together after the spear is released with a velocity of v:

m1v1 + m2v2 + m3v3 = (m1 + m2 + m3)v

Substituting the given values, we get:

75 kg × 0 m/s + 10 kg × 0 m/s + 0.72 kg × 12 m/s = (75 kg + 10 kg + 0.72 kg) × v

Solving for v, we get:

v = 0.093 m/s

b) If a spear of greater mass was thrown at the same velocity, the momentum of the system would still be conserved, but the velocity of the hunter and canoe would be lower than before. This is because the total mass of the system would be greater, so the same change in momentum would result in a smaller change in velocity.

To see this, let's use the same equation as before, but with a greater mass for the spear:

75 kg × 0 m/s + 10 kg × 0 m/s + (2 × 0.72 kg) × 12 m/s = (75 kg + 10 kg + 2 × 0.72 kg) × v

Solving for v, we get:

v = 0.047 m/s

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Answer:

12 km/hr

Explanation:

Speed= Distance/Time

Answer:

12km/h

Explanation:

average speed= Distance covered /time taken

average speed=2km/20minutes

=but 1 minutes is 60 seconds

=2km/60minutes

=12km/h

To calculate the work done by gravity on the 25 kg air compressor as it is dragged from r⃗ 1=(1.3ı^+1.3ȷ^)m to r⃗ 2=(8.3ı^+3.2ȷ^)m, we can use the formula W = m * g * h, where W is the work done, m is the mass, g is the acceleration due to gravity, and h is the vertical displacement. The vertical displacement, h, can be found by subtracting the initial y-coordinate from the final y-coordinate:

Gravity is the force of attraction that exists between all particles that have mass or weight in the universe. Gravity is related to the mass of objects, the distance between objects, and the speed of the object's orbit. Gravity causes objects to have weight, planets orbit the sun, and sea tides.

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The baseball's drag force, FD, is equal to 0.4995 Jlb. The baseball has a 2.82-inch diameter.

In physics, the word "force" appears to have a clear definition. A force does not "be in it" or "be contained by" an object. A force from another can exert pressure on something.

In essence, force is a push or pull that has an impact on anything or energy as a feature of physical motion or movement. It happens when two things get in touch. In addition, while a body is moving, it is considered to be in motion.

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Answer:

PROCESS BY PLANTS MAKE THIER OWN FOOD WITH THE HELP OF WATER, MINERAL CHLOROPHYLL, CARBON DIOXIDE IN THE PRESENCE OF SUNLIGHT....

I HOPE IT IS HELPFUL

From Coulomb's law, the sets of charges of +2 C and -2 C, and +2 C and +2 C are experiencing the strongest forces, both with a magnitude of 36 N.

The strength of the electrostatic force between two charges depends on the magnitudes of the charges and the distance between them, as given by Coulomb's law. The larger the magnitude of the charges and the smaller the distance between them, the stronger the force.

A fundamental characteristic of matter called charge describes how it interacts with magnetic and electric fields. It is commonly measured in coulombs (C), can be positive or negative, and can also be zero.

Protons and electrons are examples of subatomic particles that have electric charge.

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Answer:

4 is correct

Explanation:

The more carbons in a hydrocarbon there are the higher the melting point will become.

Explanation:

480km = 480000m

12hr = 43200 sec

480000/43200 = 11.1111111111

round up 2 sig fig

11m/s

answer is 11m/s

Answer:

this the way that hydraulic pump works:

The system of hydraulic jack lifts the heavy objects by transferring the oil from one chamber to another.

Through the suction valves into the two cylinders which creates pressure distributing the fluid equally to the points causing the objects to lift up.

hope these points helped u

any confusion then comment it

The statement explains how diffraction supports the wave model of light

rather than the particle model is Light waves bend around a corner, but particles would not bend.

When a light ray passes through a narrow slit or strikes to any obstacle in its path, the light gets diffracted into different colors of electromagnetic spectrum that are seen on a screen placed at some apart from the slit.

The diffraction means bending of light ray and produce a spectrum. The particle nature says that particles never bend.

Thus, the correct option is A.

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D

Explanation:

The are the same but difference

The critical depth in the hydraulic jump can be calculated using the specific energy equation. In this case, with a flow rate of 1.17 m³/s, channel width of 1.7 m, and a depth of 149 mm, the critical depth can be determined.

To calculate the critical depth in the hydraulic jump, we can use the specific energy equation, which relates the flow rate, channel dimensions, and water depth. The equation can be written as:

E = (Q² / (2g)) + (y² / (2g)) + (A² / (P * g))

Where:

E is the specific energy,

Q is the flow rate,

g is the acceleration due to gravity,

y is the water depth,

A is the cross-sectional area of flow,

P is the wetted perimeter of the channel.

In this case, we have a flow rate of 1.17 m³/s, a channel width of 1.7 m, and a depth of 149 mm (or 0.149 m). We need to find the critical depth, which occurs at the hydraulic jump. At the critical depth, the specific energy reaches its minimum value.

To determine the critical depth, we need to set the derivative of the specific energy equation with respect to the water depth equal to zero and solve for y. This will give us the critical depth. However, calculating the critical depth requires knowing additional parameters such as the cross-sectional area and wetted perimeter, which are not provided in the given information. Without these values, it is not possible to calculate the critical depth accurately.

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Answer:

Venus....

Explanation:No explanation just simple answers

The ball that is projected 125 meters straight upward has a total time in the air of: 10.1 s

The formulas for the vertical launch upward and the procedures we will use are:

Where:

Information about the problem:

Applying the maximum height formula and clearing the initial velocity we get:

y max = v₀²/(2*g)

v₀ = √(y max * (2*g))

v₀ = √( 125 m * (2 * 9.8 m/s²))

v₀ = √( 125 m * 19.6 m/s²)

v₀ = √2450 m²/s²

v₀ = 49.497 m/s

Applying the maximum time formula we get:

t max= v₀ / g

t max= 49.497 m/s / 9.8 m/s²

t max = 5.050 s

Applying  the time of flight formula, we get:

t(of) =2 * t max

t(of) =2 * 5.050 s

t(of) = 10.1 s

In physics vertical launch upwards is the motion described by an object that has been launched vertically upwards in which the height and the effect of the earth's gravitational force on the launched object are taken into account.

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The time taken now is 10 s

We know that in this case, the object was projected vertically upward and we know that in this direction the acceleration due to gravity is negative. Then the ball falls straight down to  the ground. We have to use the equation of kinematics under gravity to approach the problem.

We now have that;

h = ut + 1/2gt^2

Considering the downward motion were g is positive u = 0 m/s

h =  1/2gt^2

t = 2h/g

t = √2h/g

t = √ 2 * 125/10

t = 5 s

Given that the time taken to go up is the same as the time taken to come down;

Total time spent in air = 2 (5 s) = 10 s

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If the time between the two observed events was 4.6 s and the speed of the pot as it passed Jill's window was 58.0 m/s, the speed of the pot when Jack saw it go by would also be 58.0 m/s.

Since the time between the two observed events is given as 4.6 s and both observations correspond to the same flower pot, the pot's speed would remain constant during this time. Therefore, if the pot's speed as it passed Jill's window was 58.0 m/s, it would also be moving at the same speed when Jack saw it go by.

This assumes that the pot maintained a constant speed and there were no other external factors affecting its motion, such as acceleration or deceleration. Additionally, the assumption of negligible air resistance suggests that the pot's speed was not significantly affected by any air drag during its movement between the two windows.

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The longest wavelength visible to the human eye is approximately 700 nanometers (nm).

Visible light ranges in wavelength from around 400 nanometers (violet) to around 700 nanometers (red).

While our eyes can detect these wavelengths, they don't see all wavelengths of electromagnetic radiation (EMR).

The portion of the EMR spectrum visible to our eyes is referred to as visible light, which includes wavelengths ranging from 400 nanometers (violet) to 700 nanometers (red).

Hence, the longest wavelength visible to the human eye is around 700 nm. This is the  answer to the question.

In conclusion, the longest wavelength visible to the human eye is approximately 700 nanometers (nm). The human eye can see visible light ranging from 400 nanometers (violet) to 700 nanometers (red).

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Answer:

Hey!

Your answer should be D!

Explanation:

In a transformer Np / Ns is called the voltage ratio. If Ns is less than Np then Vs is less than Vp. This is called a step-down transformer as the voltage is reduced.

(source from google.com!)

When observing the applications of pistons in lifting operations, you are seeing both the increase in energy and Pascal's principle in action.

Piston systems are commonly used in lifting operations, such as hydraulic lifts and jacks. They work based on Pascal's principle, which states that when pressure is applied to a fluid in a confined space, it is transmitted equally in all directions.

In the case of a piston, a force applied to a small area on one side of the piston is transmitted through the fluid and results in a larger force on the larger area of the opposite side of the piston.

This allows for the amplification of force or energy, making it possible to lift heavy objects. Therefore, when observing pistons in lifting operations, you witness the application of Pascal's principle and the increase in energy or force.

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It would take approximately 81.3 Moons to equal the mass of the Earth.

Iron and oxygen make up the majority of the Earth's mass. Each of these makes up around 32% of the mass of the planet. Calcium, aluminum, and nickel make up roughly 1.5% of the total, followed by magnesium and silicon, which each contribute another 15%.

The mass of the Earth is approximately 5.97 x 10^24 kilograms, while the mass of the Moon is approximately 7.35 x 10^22 kilograms.

To determine how many Moons would be required to equal the mass of the Earth, we can divide the mass of the Earth by the mass of the Moon:

5.97 x 10^24 kg / 7.35 x 10^22 kg = 81.3

Therefore, it would take approximately 81.3 Moons to equal the mass of the Earth.

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Answer:

a)200 mph

b)80 mph

c)-40 mph

d)97 mph

e)56 mph

(note: i rounded the answer for d, it was a repeating decimal)

Explanation:

a) 3s-0s=3s 600m-0m=600m 600m/3s=200m/s

and it is the same for the rest. Use the explanation for A as a example.

So you take the final variable or speed and subtract it by the starting, then divide that by the time elapsed. Hope this helped!

Answer:

the answer is letter D.

Explanation:

i hope this is help

Answer:

great answer warstep8! add me on disc colludy#8415

Explanation:

Answer:

As moon goes round the earth we see the 50% surface only on full moon nights.

In the picture inner moon shows the actual illumination and outer moons shows our view from Earth

Explanation: i cant get the picture to load so....