Many amateur astronomers start out with a 4-inch (aperture) telescope and then graduate to a 16-inch telescope. By what factor does the light-gathering power of the telescope increase with that upgrade

Answer: someone took down my answer I don’t know why when I took this test and got it right but the answer is C like the other person said.

Explanation:

The microwave radiation referred to in this context is radiation that was released as matter formed in the early universe. Therefore option A is correct.

Microwave radiation, also known as cosmic microwave background radiation (CMB), is a faint radiation that permeates throughout the universe.

It is considered to be the remnants of the thermal radiation released shortly after the Big Bang, during a phase called recombination. At this time, the universe transitioned from a hot, dense plasma to a state where neutral atoms could form, allowing photons to travel freely.

The cosmic microwave background radiation is isotropic, meaning it is uniformly distributed in all directions, and it has a characteristic temperature of approximately 2.7 Kelvin (-270.45 degrees Celsius).

It was first detected in 1965 by Arno Penzias and Robert Wilson, who were awarded the Nobel Prize in Physics for their discovery.

The presence of cosmic microwave background radiation provides strong evidence for the Big Bang theory and helps to support the understanding of the early universe's formation and evolution.

It serves as an important tool for studying cosmology and provides insights into the structure, age, and composition of the universe.

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Wave length photo attachment

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Answer:

104.3 cm  or 179.7

Explanation:

First find time that it takes for the object to hit the ground

\(\sqrt{(2H)/g} -> \sqrt{(2 x 179)/ 9.8} = 6.04s\\\)*

Then find xf of projectile \(xf= 5.9(6.04) = 37.7\\\\\)

not 100% sure if the projectile is going away from the object or towards it but you either do 142- 37.7   or    142+37.7  

hope that helps

"217 cm" would be the difference throughout the landing locations of the two objects.

Given:

Initial horizontal speed,

Height,

By applying equation of motion, we get

→               \(S = ut+\frac{1}{2}at^2\)

By substituting the values, we get

→ \(179\times 10^{-2}=0+\frac{1}{2}\times 9.8\times t^2\)

→            \(3.58= 9.8t^2\)

                 \(t^2 =\frac{3.58}{9.8}\)

                  \(t = \sqrt{0.36531}\)

                     \(= 0.61 \ s\)

now,

The horizontal distance travelled by the first particle will be:

→ \(d = v\times t\)

     \(= 5.9\times 0.61\)

     \(= 3.59 \ m\)

or,

     \(= 359 \ cm\)

hence,

The distance between particle will be:

= \(d -142\)

= \(359-142\)

= \(217 \ cm\)

Thus the above approach is right.

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The statement "The energy that comes from the Sun depends on the mass of the Sun that is being used up" can be described as false.

The energy emitted by the Sun is primarily a result of nuclear fusion reactions occurring within its core, specifically the fusion of hydrogen nuclei to form helium. This process releases a tremendous amount of energy in the form of light and heat.

The energy output of the Sun is primarily determined by its size and composition, rather than the mass that is being "used up" or consumed. The Sun's mass remains relatively constant over time due to a balance between the inward gravitational force and the outward pressure from nuclear fusion. While the Sun undergoes fusion and loses mass during this process, the energy output is not directly dependent on the amount of mass being consumed.

Factors such as solar activity, which can affect the Sun's energy output, are not related to the Sun's mass. Solar activity, including phenomena like sunspots and solar flares, is driven by complex magnetic processes within the Sun's atmosphere.

Therefore, the energy that comes from the Sun does not depend on the mass of the Sun that is being used up.

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Answer: 1m/s^2

Explanation: The formula to find acceleration is:

a = (vf - vi) / t

where:

a= acceleration

vf= final velocity

vi= intial velocity

t= time

By substituting these values ​​in the acceleration equation, we obtain:

a = (9 m/s - 5 m/s) / 4 s

we get:

a = 1 m/s^2

Answer:

I major in economics.

My son is studying economics.

He studied economics at college.

Tom isn't doing much business during these bad economic times.

She majored in economics.

Economics sentence example. As my economics professors insisted, cost is determined by scarcity and demand. In modern economics "fertility" has no very definite meaning.

In conclusion, the work done by the chain can be determined by multiplying the force applied by the chain, which is the product of the mass of the block and the acceleration due to gravity, by the distance over which the force is applied. The work done in this case is 588 Joules.

To find the work done by the chain, we can use the equation:
Work = Force x Distance
First, let's find the force applied by the chain. The force can be determined using Newton's second law:
Force = mass x acceleration
Since the block is being brought down by the chain, the acceleration will be due to gravity, which is approximately 9.8 m/s^2.
So, the force applied by the chain can be calculated as:
Force = mass x acceleration
      = 30.0 kg x 9.8 m/s^2
      = 294 N
Next, let's calculate the distance over which the force is applied. The block is dropped down 2.00 m.
Finally, we can calculate the work done by the chain:
Work = Force x Distance
     = 294 N x 2.00 m
     = 588 J
Therefore, the work done by the chain during the process is 588 Joules. This means that the chain applies a force of 294 N over a distance of 2.00 m to bring the block down.
In conclusion, the work done by the chain can be determined by multiplying the force applied by the chain, which is the product of the mass of the block and the acceleration due to gravity, by the distance over which the force is applied. The work done in this case is 588 Joules.

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The force of gravity acting between the earth and a 125-kg person standing on the surface of the earth is 1226.7N.

This is calculated using Newton's law of universal gravitation, which states that the gravitational force between two objects is equal to the product of their masses, divided by the square of the distance between them, multiplied by the gravitational constant. In this case, the masses of the Earth and the person are both known, and the distance between them is assumed to be the radius of the Earth.

Therefore, the gravitational force between the Earth and the person can be calculated as:

F = (G x ME x Mperson) / (rEarth)²

Where:

Plugging in the values, the gravitational force between the Earth and the person comes out to be 1226.7N.

.

Therefore, the force of gravity between the earth and a 125-kg person standing on the surface of the earth comes out to be 1226.7N.

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Answer:

S= ?

V=2m/sec

t=25s

S=V*t

S=2*25

S=50m

The lifting mechanism of a paper plane relies on the design and shape of its wings, as well as the angle of attack of the plane.

A paper plane is a toy plane made of paper that is designed to fly through the air when thrown. In order to fly, a paper plane must generate lift. Lift is generated by the wings of the plane, which are shaped to create an area of low pressure above the wing and an area of high pressure below the wing.

As the paper plane moves through the air, the air flowing over the top of the wing moves faster than the air flowing underneath the wing. This creates a difference in air pressure, which generates lift and causes the paper plane to rise into the air.The angle of attack of a paper plane refers to the angle at which the wings of the plane are tilted relative to the direction of flight. When the angle of attack is increased, the amount of lift generated by the wings also increases. This can cause the paper plane to rise higher into the air and travel further distances.

However, if the angle of attack is too high, the air flowing over the wings can become turbulent and the paper plane may stall and fall to the ground. Therefore, finding the optimal angle of attack for a paper plane is key to achieving the greatest distance and flying time. Overall, the lifting mechanism of a paper plane relies on the design and shape of its wings, as well as the angle of attack of the plane.

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Answer:

organ is larger cell..............

Answer:

organ

Explanation:

The change in the momentum of the bus is 10600 kg-m/s, if bus of 1600 kg crashes with a SUV of 600 kg.

The mass of the bus, m₁ = 1600 kg

The mass of the SUV, m₂ = 600 kg

Initial velocity of the bus, v₁ = 10 m/s

initial velocity of the SUV, v₂ = 0 (at rest)

Velocity of the bus after collision, v₃ = 3 m/s

Velocity of the SUV after collision, v₄ = 1 m/s

The change in momentum(Δp) is given by,

Δp = (m₁v₁ + m₂v₂) - (m₁v₃ + m₂v₄)

Δp = (1600 × 10 + 600 × 0) - (1600 × 3 + 600 × 1)

Δp = 16000 - 5400

Δp = 10600 kg-m/s

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True. The R command qchisq(0.05, 12) is for finding the chi-square critical value with 12 degrees of freedom at a significance level of 0.05.

The chi-square critical value is the value of the chi-square distribution that separates the region of rejection from the region of acceptance. In this case, the region of rejection is the area under the chi-square distribution to the right of the critical value, and the region of acceptance is the area under the chi-square distribution to the left of the critical value. If the chi-square statistic for a test is equal to or greater than the critical value, then the null hypothesis is rejected. If the chi-square statistic is less than the critical value, then the null hypothesis is not rejected.

Here is an example of how to use the qchisq() function in R:

# Find the chi-square critical value with 12 degrees of freedom at a significance level of 0.05

qchisq(0.05, 12)

# Output:

# 21.02649

The output of the qchisq() function is the chi-square critical value. In this case, the chi-square critical value is 21.02649. This means that if the chi-square statistic for a test is equal to or greater than 21.02649, then the null hypothesis is rejected. If the chi-square statistic is less than 21.02649, then the null hypothesis is not rejected.

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Answer:

your answer is no. B) H20

High-energy photons that are emitted during nuclear fission reactions and radioactive decay are called gamma rays. What are gamma rays? Gamma rays, also known as gamma radiation, are high-energy photons that are released during radioactive decay and nuclear fission reactions.

Gamma radiation is distinguished from alpha and beta radiation by its high penetration and ionizing power, which are made possible by its short wavelength. The properties of gamma radiation are as follows Gamma rays are highly penetrating, allowing them to pass through most types of matter with minimal interaction. They are electrically neutral and have no mass or charge.

They have a wavelength ranging from approximately 0.001 to 100 nanometers, making them the most energetic members of the electromagnetic spectrum. They have the highest frequency and energy of all electromagnetic radiation. The ionizing power of gamma rays is very high, which means they can disrupt atoms and molecules, causing damage to living tissue. Gamma rays can cause radiation sickness, cancer, and other illnesses if they come into contact with human tissue.

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Answer:

Maybe you're hanging out around the wrong crowd. The people you are probably choosing to be around are more quiet then you.

Explanation:

Answer:

True

Explanation:

The different sides control the opposite side of the human body

The left hemisphere of the brain controls the right side of the body. So, the given statement is True.

The brain is defined as the most complex part of the human body, a three-pound organ that is the seat of intelligence, the interpreter of the senses, the initiator of body movement, and the controller of behavior. The brain is said to be the source of all the qualities that define our humanity.

The brain is usually divided into symmetrical left and right hemispheres with each hemisphere in charge of the opposite side of the body, so the right brain controls the left hand while the right hemisphere also takes sensory input from the left and vice versa.

Therefore, the given statement is True.

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Answer:

ADE

Explanation:

Answer:

-A mover carries a box up a flight of stairs.

-Wind blows a pool chair across the yard.

-A weightlifter lifts a barbell off the ground.

Explanation:

TRUSTTTT A HOOOEEEE

Answer:

The magnification of the lens is 21

Explanation:

Please see full answer in the attached image since the system kept on refusing to accept my typed answer complaining of bad use of words or presence of a link.

The magnification of the lens is m = 21

Answer:

its 21 for Acellus

Explanation:

Hi there!

We can use impulse for this situation:

I = Δp = mΔv

Impulse = Force × time, so:

I = 63.9(24) = 1533.6 Ns

Find force by dividing by time:

I/t = 1533.6/1.2 = 1278 N

To calculate the angular acceleration of the ultracentrifuge, we need to use the formula: angular acceleration = (final angular velocity - initial angular velocity) / time

First, we need to convert the final angular velocity from rpm to radians per second: 9.95×\(10^{5}\) rpm = 9.95×\(10^{5}\) / 60 = 1.658×\(10^{4}\) radians per second. Next, we need to convert the time from minutes to seconds: 2.23 min = 2.23 × 60 = 133.8 seconds. Now we can plug in the values: angular acceleration = (1.658×\(10^{4}\) - 0) / 133.8, angular acceleration = 123.8 radians per second squared. Therefore, the angular acceleration of the ultracentrifuge is 123.8 radians per second squared. An ultracentrifuge accelerates from rest to 9.95 x \(10^{5}\) rpm (revolutions per minute) in 2.23 minutes. To find the angular acceleration in radians per second squared, we need to first convert the given values into appropriate units.1. Convert rpm to rad/s: 9.95 x \(10^{5}\) rpm * (2π rad/1 rev) * (1 min/60 s) ≈ 104077.12 rad/s. 2. Convert minutes to seconds: 2.23 min * (60 s/1 min) = 133.8 s. Now, we can use the formula for angular acceleration: α = (\(ω_{f}\) - \(ω_{i}\) ) / t. where α is the angular acceleration, \(ω_{f}\)  is the final angular velocity in rad/s, \(ω_{i}\) is the initial angular velocity (0 rad/s since it starts from rest), and t is the time in seconds. α = (104077.12 rad/s - 0 rad/s) / 133.8 s. α ≈ 777.4 rad/s². Thus, the angular acceleration of the ultracentrifuge is approximately 777.4 radians per second squared.

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The angular acceleration of the ultracentrifuge is 554.75 rad/\(s^2\). This is obtained by converting the final velocity to radians per second and applying the formula.

To find the angular acceleration in radians per second squared of an ultracentrifuge that accelerates from rest to 9.95×\(10^5\) rpm in 2.23 min, we can use the following formula:

angular acceleration = (final angular velocity - initial angular velocity) / time

First, we need to convert the final angular velocity from rpm to radians per second. Since there are 60 seconds in a minute, we can use the following conversion factor:

1 rpm = 2π/60 rad/s

So the final angular velocity is:

9.95×\(10^5\) rpm × 2π/60 = 104250π rad/s

Next, we need to convert the time from minutes to seconds:

2.23 min × 60 s/min = 133.8 s

Now we can plug these values into the formula:

angular acceleration = (104250π rad/s - 0 rad/s) / 133.8 s

Simplifying this expression, we get:

angular acceleration = 554.75 rad/\(s^2\)

Therefore, The ultracentrifuge accelerates at an angle at a rate of 554.75 radians per second squared.

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Electron released from negative to positive plate in parallel plate capacitor, with electric field of 3.0 × 10⁶ V/m and distance of 1.4 cm. Kinetic energy before hitting positive plate is approximately 6.72 x 10⁻¹⁵ Joules.

To calculate the kinetic energy of the electron just as it reaches the positive plate of the parallel plate capacitor, we can use the principles of electrostatics and energy conservation.

The electric potential difference (ΔV) between the negative and positive plates of the capacitor can be calculated using the electric field (E) and the separation distance (d) between the plates:

ΔV = Ed

Given that the electric field within the capacitor has a magnitude of 3.0 x 10^6 V/m and the plates are separated by a distance of 1.4 cm (or 0.014 m), we can calculate the potential difference:

ΔV = (3.0 x 10⁶ V/m) * (0.014 m)

    = 42,000 V

The potential difference across the plates represents the change in potential energy of the electron as it moves from the negative to the positive plate. Since the electron is initially at rest, this change in potential energy will be equal to its kinetic energy (KE) just as it reaches the positive plate.

Therefore, the kinetic energy of the electron can be calculated as:

KE = ΔV * q

where q is the charge of the electron.

The charge of an electron is approximately -1.6 x 10⁻¹⁹ Coulombs (C). Plugging in the values, we get:

KE = (42,000 V) * (-1.6 x 10⁻¹⁹ C)

   ≈ -6.72 x 10⁻¹⁵ Joules (J)

Since the kinetic energy cannot be negative, we take the absolute value:

|KE| ≈ 6.72 x 10⁻¹⁵ J

Therefore, the kinetic energy of the electron just as it reaches the positive plate is approximately 6.72 x 10⁻¹⁵ Joules.

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Based on the information given, it should be noted that there is a way to use this principle to create a motor.

It should be noted that when an electric current is passed through an iron nail, there'll be an electromagnet that's created.

In such a case, the magnet will pick up small objects and this demonstrates that electrical energy can be converted into mechanical energy. This can be applicable to a motor when a wire is put in between the two paper clips that are connected to the battery. At the bottom, there's a magnet that acts as the conductor and thereby, electrical energy can be converted into mechanical energy.

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Answer: When you change the direction of the current, you also change the direction of the magnetic field. Because the magnetic field created by the electric current in the wire is changing directions around the wire, it will repel both poles of the magnet by bending away from the wire.

Explanation:

Answer:

960 Watt

Explanation:

From the question,

Electric power = Voltage squared/Resistance

P = V²/R ..................... Equation 1

Where P = power, V = Voltage, R = Resistance

Given: V = 120 volts, R = 15 ohms.

Substitute these values into equation 1

P = 120²/15

P = 14400/15

P = 960 Watt

Answer:

397 j

Explanation:

Because 5.0kg yuh

The kinetic energy of the block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s is 396.9 J.

A moving item or particle has a certain kind of power called kinetic energy. When an item exerts a net force to perform work, which involves the transfer of energy, the object accelerates and as a result, gains kinetic energy.

The amount of kinetic energy that a moving object or particle possesses is determined by both its mass and rate of motion. Any combination of vibration, axis rotation, translation (or movement along a path from one location to another), and translation are all possible motion types.

Given:

The mass of the block, m = 5 kg,

The horizontal force, F = 80 N,

The velocity of the block, v = 12.6 m / s,

Calculate the kinetic energy by the formula given below,

\(KE = 1/2mv^2\)

KE = 1 / 2 × 5 × 12.6²

KE =  1 / 2 × 5 × 158.6

KE = 396.9 J

Therefore, the kinetic energy of the block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s is 396.9 J.

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The complete question is A block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s. ​Find its kinetic energy?