Which of Hubble’s findings supported the big bang theory?

Answer: 1. flushing the toilet,

               2. oil popping in a pan,

                3. the clicking of a mouse on a computer,

Explanation: Lu-.v u

Answer:

the velocity is 200

Explanation:

The wavelength of the red light emitted by the neon sign is approximately 6.30 x 10¹⁶ nm.

To calculate the wavelength of the red light emitted by a neon sign with a frequency of 4.76 Hz, we will use the speed of light formula:

Speed of light (c) = Wavelength (λ) × Frequency (f)

First, convert the speed of light to nm/s: c = 3.00 x 10^8 m/s = 3.00 x 10¹⁷ nm/s.

Next, rearrange the formula to find the wavelength: Wavelength (λ) = Speed of light (c) / Frequency (f)

Substitute the given frequency and speed of light values:

λ = (3.00 x 10¹⁷ nm/s) / (4.76 Hz)

λ ≈ 6.30 x 10¹⁶nm

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The potential energy of a spring is mathematically given as

P.E= 20 J

Question Parameter(s):

is compressed 0.65 m by a 25 kg block

if the spring constant is 95 n/m

Generally, the equation for the potential energy is mathematically given as

PE = mgh

Therefore

P.E=0.5 kx^2

P.E= 0.5 x 95 x (0.65)^2

P.E= 20 J

In conclusion, The potential energy of a spring

P.E= 20 J

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Answer:

(D)

Explanation:

20 J

Answer:

a) Vi = 137.2 m/s

b) h = 960.4 m

Explanation:

a)

In order to find the initial speed we will use first equation of motion:

Vf = Vi + gt

where,

Vf = Final velocity = 0 m/s (since ball stops at highest point)

Vi = Initial Velocity = ?

g = - 9.8 m/s² (negative sign for upward moyion)

t = time interval = 14 s

Therefore,

0 m/s = Vi + (-9.8 m/s²)(14 s)

Vi = 137.2 m/s

b)

Now, we use second equation of motion to find height (h):

h = Vi t + (1/2)gt²

h = (137.2 m/s)(14 s) + (1/2)(-9.8 m/s²)(14 s)²

h = 1920.8 m - 960.4 m

h = 960.4 m

Answer:

yes

Explanation:

A pendulum should be able to contain enough energy to constantly be moving

Answer:

The students displacement is 3·√3 blocks, 45° North of West

Explanation:

From the question, we have;

The distance North in which the student walks = 3.0 blocks

The next walking distance West by the student = 3.0 blocks

The displacement of the student = The shortest distance between the student start and final point

By representing the motion of the student in vector format, we have;

\(\mathbf{d} = 3\cdot \hat{i} + 3\cdot \hat{{j}}\)

Therefore the magnitude of d is given as follows;

\(\left | d\right | = \sqrt{3^2 + 3^2} = 3\cdot \sqrt{3} \ blocks\)

The direction of the student = tan⁻¹(3/3) = 45° West of North

The students displacement = 3·√3 blocks, 45° North of West.

The frequency is 5.9 jules.

we have been given that the mass is equal to 2.4 kgs and the amplitude others 9.3 and returned to the power -2 m. Yeah. So he can write The angular frequency is two pi f. That is To buy into 3.8 Hz. That is equal to 23.87. Ready for a 2nd. Now to find the first concert,

we can write Omega Square. Um that is 23.87 reading perspective, but you didn't one second. We square this into 2.4 gauges. That is equal to 1,36, newtons per meter. How to find the total energy we laid half. Okay, A square that is equal to one by two and 21368.26 into 9.3 to 10 to the minus two squared. That is equality 5.9 Jules.

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The  answer is that the statement is true only if the two forces are acting in the same direction. If the two forces are acting in opposite directions, then they cannot be combined into a single resultant force.

When two forces act on a body in the same direction, they can be combined into a single resultant force by simply adding their magnitudes. This is because the direction of the resultant force will be the same as the direction of the two forces.

However, when two forces act on a body in opposite directions, they cannot be simply added together. Instead, they will cancel each other out and create a net force of zero. In this case, the two forces cannot be combined into a single resultant force.

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Answer:

acceleration is zero....In this case

Explanation:

In uniform velcity acceleration is zero

Answer:

open the dictionary/glossary. it will give you the definitions of the words there.

Explanation:

Answer:

i think it goes like this

Explanation:

In both situations, the two forces that form a Newton's third-law force pair with equal magnitudes are the buoyant force exerted by the liquid on the block and the weight of the block exerted on the liquid.

When a block is floating in a container of liquid, it experiences two forces: the weight of the block and the buoyant force exerted by the liquid. The weight of the block is given by the equation:

\(\[ F_{\text{{weight}}} = mg \]\)

where m is the mass of the block and g is the acceleration due to gravity. The buoyant force exerted by the liquid on the block is equal to the weight of the liquid displaced by the block. It can be calculated using Archimedes' principle:

\(\[ F_{\text{{buoyant}}} = \rho V_{\text{{submerged}}} g \]\)

where \(\( \rho \)\) is the density of the liquid and \(\( V_{\text{{submerged}}} \)\) is the volume of the block that is submerged in the liquid.

When the block is replaced with a block of mass 2m , the weight of the block doubles while the buoyant force remains the same. Therefore, the two forces that form a Newton's third-law force pair with equal magnitudes in both situations are the buoyant force exerted by the liquid on the block and the weight of the block exerted on the liquid.

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In step 1, to increase the potential energy, the iron will move towards the electromagnet.

The potential energy of a system of dipole depends on the orientation of the dipole in the magnetic field.

\(U = \mu B\)

where;

\(B = \frac{\mu_0 I}{2\pi r}\)

\(U = \mu\times (\frac{\mu_0 I}{2\pi r} )\)

Increase in the distance (r) reduces the potential energy. Thus, we can conclude the following;

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The velocity of recession of the galaxy will be 37.3×10⁶ m/sec. The concept of Doppler effect is employed in the given problem.

A sudden change in the frequency due to the distance between the objects and source is explained by the Doppler effect.

As the source and observer travel toward each other, the frequency of sound, light, or other waves increases or decreases.

A passing siren's rapid change in pitch, as well as astronomers' redshift, are both caused by this phenomenon.

Applications of the Doppler effect;

The rest wavelength is,\(\rm \lambda_0 = 394 \ nm\)

The distant wavelength is,\(\rm \lambda = 450 \ nm\)

The velocity of recession  is,V

The recession velocity is found as;

\(\rm V = (1-\frac{\lambda}{\lambda_0} )C \\\\ \rm V = (1-\frac{394}{450} )\times 3 \times 10^8 \\\\ V = (1- 0.875)\times 3 \times 10^8 \\\\ V = 37.3 \times 10^6 \ m/sec\)

Hence, the velocity of recession of the galaxy will be 37.3×10⁶ m/sec.

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Answer: 1. 12 MPH 2. 36m 3. 8 Hz

Explanation:

Answer:

1. 12 MPH 2. 36m 3. 8 Hz

Explanation:

For #1, I multiplied 6 by 2, For #2 I multiplied 6 by 6 and for #3 it's 8 x 2

Answer:

t = S / V = 3.8E8 / 3E8 = 1.3 sec

It takes over 1 second for a radio signal to travel between the earth and the moon.

Answer:

The correct option is;

d. A coil

Explanation:

When a wire, which is an electric conductor is formed into the shape of a coil, and current is allowed to flow through the wire coil, a magnetic field is generated

The magnetic field generated by the electromagnetic coil has direction that consists of flux emanating from one end of the coil and entering the coil from the other end, similar to that of the magnetic field produced by a normal bar magnet.

Answer:

The maximum speed an object can fall in the presence of air resistance

Newton's third law

A coil

1. The direction of the magnetic field at the center of the loop is perpendicular to the plane of the loop and follows the right-hand rule.

The right-hand rule states that if you curl the fingers of your right hand in the direction of the current flow in a loop, your thumb will point in the direction of the magnetic field at the center of the loop. The magnetic field lines are circular and perpendicular to the plane of the loop.

2. The expression for the magnitude of the magnetic field at the center of the arc can be calculated using the formula for the magnetic field due to a circular loop of wire. The expression is given by: B = (μ₀ * I) / (2 * r), where B is the magnetic field, μ₀ is the permeability of free space, I is the current in the loop, and r is the radius of the arc.

The magnetic field at the center of the arc formed by the right-angle bend in the wire can be calculated using the formula for the magnetic field due to a circular loop of wire. The magnetic field strength is directly proportional to the current in the loop (I) and inversely proportional to the radius of the arc (r). The permeability of free space (μ₀) is a constant value. By plugging in the values of current and radius, the expression for the magnitude of the magnetic field at the center of the arc can be determined.

3. The force per unit length between two parallel wires carrying current can be calculated using the formula: F/L = (μ₀ * I₁ * I₂) / (2 * π * d), where F/L is the force per unit length, μ₀ is the permeability of free space, I₁ and I₂ are the currents in the wires, and d is the distance between the wires.

The force per unit length between two parallel wires carrying current can be calculated using the formula above. The force is directly proportional to the product of the currents in the wires (I₁ and I₂) and inversely proportional to the distance between the wires (d). The permeability of free space (μ₀) is a constant value.

4. The force between two parallel wires depends on the direction of the currents. If the currents are in the same direction, the force is repulsive, and if the currents are in opposite directions, the force is attractive.

The direction of the currents in the two parallel wires determines the direction of the magnetic fields around the wires. When the currents flow in the same direction, the magnetic fields around the wires interact and result in a repulsive force between the wires. When the currents flow in opposite directions, the magnetic fields interact differently and result in an attractive force between the wires.

5. To find the current in the other wire when two parallel wires separated by a distance carry a force per unit length, the formula can be rearranged to solve for the current in the second wire, I₂ = (F/L) * (2 * π * d) / (μ₀ * I₁), where I₂ is the current in the second wire, F/L is the force per unit length, d is the distance between the wires, μ₀ is the permeability of free space, and I₁ is the current in the first wire.

By rearranging the formula for the force per unit length between two parallel wires, the current in the second wire (I₂) can be calculated. The force per unit length (F/L), the distance between the wires (d), and the current in the first wire (I₁) are known quantities, and the permeability of free space (μ₀) is a constant value.

6. If the direction of one current in the two parallel

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Answer:

Those who survived the bomb may become deaf or blind, as well as suffer catastrophic burns and injuries. Even people who were not seriously injured could become trapped within a structure or unable to navigate through the wreckage.

Explanation:

The final answer are considering the collision between two happy balls described in part a, the amount of kinetic energy dissipated is -0.15 J.

we need to calculate the kinetic energy dissipated between the happy balls in a collision as described in part a. The question is asking us to use the following terms in our answer: "now, consider the collision between two happy balls described in part

a. how much of the balls' kinetic energy is dissipated? "So, using the given formula of kinetic energy :K = (1/2)mv²Where,K = Kinetic energy of an object m = Mass of an object v = Velocity of an object

Now, we'll begin solving the problem. According to the problem, two balls with a mass of 0.35 kg each, having a velocity of 2.5 m/s and 1.2 m/s, collide in an inelastic collision with each other. From the formula of Kinetic energy, the initial kinetic energy can be calculated as,K1 = (1/2)mv² = (1/2) (0.35 kg) (2.5 m/s)² = 1.09 J

Similarly, for the second ball, the initial kinetic energy can be calculated as,K2 = (1/2)mv² = (1/2) (0.35 kg) (1.2 m/s)² = 0.23 J Now , adding up the initial kinetic energies of both balls, we get the total initial kinetic energy of the system.

That is,K1 + K2 = 1.09 J + 0.23 J = 1.32 J

Therefore, the total initial kinetic energy of the system is 1.32 J. Now, let's calculate the final kinetic energy of the system. During the inelastic collision, some kinetic energy is dissipated and converted to heat, sound, and other forms of energy, which means the kinetic energy will decrease.

Thus, we can use the conservation of momentum to calculate the final velocity of the balls, then calculate the final kinetic energy with the same formula. Now, applying the conservation of momentum (as in Part a), we get,0.35 kg × 2.5 m/s + 0.35 kg × 1.2 m/s = (0.35 kg + 0.35 kg) × v_ v = 1.85 m/s

Now, we can calculate the final kinetic energy of the system as, K_final = (1/2)mv² = (1/2) (0.7 kg) (1.85 m/s)² = 1.47 J Therefore, the final kinetic energy of the system is 1.47 J. Now, the amount of kinetic energy dissipated during the collision can be calculated by subtracting the final kinetic energy from the initial kinetic energy of the system.

K_dissipated = K_initial - K_final= 1.32 J - 1.47 J= -0.15 J

Thus, the amount of kinetic energy dissipated during the collision is -0.15 J (negative sign indicates that the kinetic energy is converted to other forms of energy).

Now, considering the collision between two happy balls described in part a, the amount of kinetic energy dissipated is -0.15 J.

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Answer: A. Marco places a toy car at the top of a ramp. He releases the car and measures how long it takes for the car to reach the bottom of the ramp. Then, he returns the car to the top of the ramp, releases the car again, and makes an additional measurement

The relation between λ and T1/2 is given by λ = ln(2) / T1/2. This equation shows that the decay constant is inversely proportional to the half-life. Here option C is the correct answer.

The relationship between the decay constant (λ) and half-life (T1/2) can be derived from the radioactive decay law, which states that the rate of decay of a radioactive substance is proportional to the amount of the substance present at any time. Mathematically, it can be expressed as:

dN/dt = -λN

where N is the number of radioactive nuclei at any time t, and λ is the decay constant.

The half-life of a radioactive substance is defined as the time it takes for half of the original number of radioactive nuclei to decay. Using this definition, we can write:

N(t) = \(N0 * 2^(\frac{-t}{\frac{T1}{2} })\)

where N0 is the initial number of radioactive nuclei at t = 0.

Substituting this expression into the decay law equation and solving for λ, we get:

dN/dt = -λN × \(2^(\frac{-t}{\frac{T1}{2} })\)

= -λN

λ = ln(2) / T1/2

A shorter half-life implies a higher decay constant, and hence a faster rate of decay.

Complete question:

The relation between λ and T 1/2 is given as?

(\(T_{\frac{1}{2} }\) → half-life, λ → decay constant)

A - \(T_{\frac{1}{2} } }\) = ln2/λ

B - \(T_{\frac{1}{2} } }\) = ln2 = λ

C - λ = ln(\(\frac{2}{T_{\frac{1}{2} } }}\))

D - (λ + \(T_{\frac{1}{2} } }\)) = ln2/λ

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Answer: The decomposition of H₂O₂ is a first-order reaction. Then, the reaction rate will be 2 times the original rate, if we double its concentration value.

Explanation: To find the answer, we need to know about the decomposition of H₂O₂.

                              2H₂O₂→ 2 H₂O+ O₂

                              Rate = k [H₂O₂]1

              Rate = rate constant × concentration of [H₂O₂]

         rate constant=k and the concentration of [H₂O₂] = 1[H₂O₂].

                              Rate = 2k [H₂O₂].

Thus, we can conclude that the rate of reaction will be 2 times the initial rate if we double the concentration.

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If we double the concentration value, the reaction rate will be twice as fast as before.

In order to determine the solution, we must understand how H2O2 breaks down.

                        2H₂O₂→ 2 H₂O+ O₂

                      Rate = [H2O2] k

                   Rate = rate constant × [H2O2] concentration

                           Rate = [H2O2] 2k.

As a result, we can infer that doubling the concentration will cause the reaction rate to double.

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In order to apply the relationship o, a torsional member must be made of a ductile material, be homogeneous, and have a constant diameter.

A torsional member is subject to torsional or twisting forces. The relationship "o" represents the angle of twist or torsion in the member. To ensure this relationship holds, the following conditions must be met:

Ductile material: The torsional member should be made of a material that exhibits ductility. Ductility is the ability of a material to deform plastically without breaking. Ductile materials can withstand the twisting forces without fracturing, allowing for a reliable measurement of the angle of twist.

Homogeneity: The torsional member must be homogeneous, meaning it has uniform properties throughout its cross-section. If the member has varying material properties, such as different stiffness or strength, it can lead to uneven distribution of torsional forces and affect the accuracy of the relationship o.

Constant diameter: The torsional member should have a constant diameter along its length. This ensures that the distribution of torsional stresses remains uniform throughout the member. If the diameter varies, it can cause stress concentration points and lead to inaccurate measurements of the angle of twist.

In summary, a torsional member must be made of a ductile material to withstand the twisting forces, be homogeneous to maintain uniform properties and have a constant diameter to ensure accurate measurements of the angle of the twist.

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Answer:

Could you explain more?

Explanation:

Answer:

its speed will increase to 8 newtons allowing its position to dramatically change.

Answer:

change in direction

Explanation:

ans maybe correct

If you stay on or near the surface of Earth, then the acceleration due to gravity

is constant.  It's 9.807 meters per second squared. (rounded)

Forming an argument takes time and effort, but by following these steps, students can ensure that their arguments are well-researched, well-supported, and effective in persuading others

The first step is to educate themselves on the topic at hand, including researching different viewpoints and gathering relevant information. Once they have formed an opinion, students should then identify evidence that supports their claim and document sources to back up their arguments.

Another important step is to follow the argumentative essay outline, which typically includes an introduction, several body paragraphs, and a conclusion. In the introduction, students should clearly state their thesis or main argument, while the body paragraphs should present supporting evidence and address any potential counterarguments. Finally, the conclusion should summarize the key points of the argument and reinforce the thesis.

Overall, forming a strong argument takes time and effort, but by following these steps, students can ensure that their arguments are well-researched, well-supported, and effective in persuading others. So, students should take the time to list the reasons that support their claim, educate themselves and form an opinion, identify evidence and document sources, and follow the argumentative essay outline in order to create a convincing and effective argument.

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