Ou weigh 800N on earth and you travel to Mars where the acceleration of gravity is 4 m/s^2. What is your weight on Mars?

Answer:

( About ) 1.1 cm / s

Explanation:

We know that the time it takes the clock's second hand to move is 60 seconds. Respectively the radius of this clock is given to be 10.5 centimeters.

_______________________________________________________

Let us apply the formula speed = distance traveled / time. Here the " distance traveled " is the circumference of the clock, or 2πr - where we can pose π as 3.14. In other words, Speed = 2πr / time. Substitute known values to solve for the Speed,

S = 2 * 3.14 * 10.5 / 60,

Speed = ( About ) 1.1 cm / s

Hope that helps!

Answer:

Reduction in recoverable amount

Explanation:

Impairment of an asset happens when there is drastic reduction in recoverable amount of the asset. Long term assets are at risk of impairment because their carrying values may exceed the fair value. The business record it as a loss in assets value.

Answer:B. A segment of a DNA molecule

Explanation:

the momentum = m * v

m : mass

v : velocity

momentum = 1 * 50 = 50 kg.m/s

The  value in terms of 1m of oil is 1.25

To convert the pressure at a point from 1 meter of water to its equivalent value in meters of oil, we can use the following formula:

Pressure = height × density × gravity

Let's first find the pressure exerted by 1 meter of water.

1 g x 0.8 = 0,8

1 x g x 1m = 0.8 x g * h2

We are to solve for h2

h2 = 1 / 0.8

= 1.25

Hence tghe  value in terms of 1m of oil is 1.25

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Answer:

a. A book resting on the floor

Explanation:

Potential energy is the energy stored in a object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above/below the zero height.

Answer:

Qualitative, Quantitative, Qualitative, Quantitative, and Qualitative.

Explanation:

\(\qquad\qquad\huge\underline{{\sf Answer}}♨\)

Here we go ~

❖ Qualitative data determines the property or characteristics of certain object or behavior.

❖ Quantitative data determines the number or quantity of a substance. basically dealing with how much/many things are being used.

Now let's move on to questions ~

#1. Carbon is a organic molecule.

- Qualitative

#2. The forest is 25% oak trees.

- Quantitative

#3. Water contains covalent bonds.

- Qualitative

#4. Sheila's blood pressure is 120/80.

- Quantitative

#5. The bat arm and human arm have similar bone structure

- Qualitative

The drift speed varies along the wire It slows down as the cross-section becomes larger. So option b is correct.

The drift speed of charges in a current-carrying wire depends on the electric field, which is related to the potential difference (voltage) between the ends of the wire and the wire's resistance.

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area, according to Ohm's law.

In a wire that has a cross-sectional area that gradually becomes smaller along the wire, the wire's resistance would increase along the length of the wire due to the decrease in cross-sectional area.

This would cause the potential difference between the ends of the wire to decrease along the length of the wire as well.

As the potential difference decreases, the electric field and the drift speed of charges would also decrease. Therefore, the drift speed of charges in the wire would slow down as the cross-sectional area becomes larger.

So the answer is (b) it slows down as the cross section becomes larger.

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Kepler was able to find a relationship between the orbital periods and distances of the planets (his third law) by analyzing a dataset of planetary positions provided by Tycho Brahe. He concluded that all planets moved in elliptical orbits, with the sun at one focus of the ellipse. He also determined that the square of the orbital period of a planet is proportional to the cube of its average distance from the sun, which does not depend on the masses of the planets or the sun.

Johannes Kepler was able to discover a relationship between the orbital periods and distances of the planets that did not depend on the masses of the planets or the sun. This is known as Kepler's Third Law, and it is based on his observations and analysis of the data. Kepler was able to find this relationship by analyzing the observations of the planets' motion that had been made by Tycho Brahe. He discovered that the planets move around the sun in elliptical orbits rather than circular orbits, which was the prevailing theory at the time. Kepler also found that the planets move faster when they are closer to the sun and slower when they are farther away, which he called the Law of Areas. He discovered that the time it takes for a planet to orbit the sun (its period) is related to the distance between the planet and the sun (its semi-major axis) in a specific way. This relationship is expressed as P2 = a3, where P is the planet's period and a is its semi-major axis. This is known as Kepler's Third Law, and it is an important relationship that helps scientists understand the motion of the planets and other celestial bodies.

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The electron's kinetic energy is approximately 6.2 eV, so the correct answer is (c) 6.2 eV.

To determine the electron's kinetic energy, we need to use the equation for the energy of a photon: E = hc/λ, where E is the energy, h is Planck's constant (6.626 x \(10^{-34}\) J s), c is the speed of light (3.0 x \(10^{8}\) m/s), and λ is the wavelength of the ultraviolet light.

Converting the wavelength of 200 nm to meters (1 nm = 1 x \(10^{-9}\) m), we get: λ = 200 nm = 200 x \(10^{-9}\) m. Plugging the values into the equation, we have: E = (6.626 x \(10^{-34}\) J s * 3.0 x \(10^{8}\) m/s) / (200 x \(10^{-9}\) m)

Simplifying the expression, we find: E ≈ 9.939 x \(10^{-19}\) J. To convert the energy to electron volts (eV), we use the conversion factor: 1 eV = 1.602 x \(10^{-19}\) J

Dividing the energy by the conversion factor, we get: E ≈ 6.2 eV

Therefore, the electron's kinetic energy is approximately 6.2 eV, so the correct answer is (c) 6.2 eV.

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For an 85 kg man walking on a treadmill at a speed of 2.8 mph with a 6% grade, we can calculate both the relative and absolute VO2 values. Similarly, for a 65 kg woman running on a treadmill at a speed of 6.0 mph with a 2% grade.

1. For an 85 kg man walking on a treadmill at a speed of 2.8 mph with a 6% grade:

Relative VO2:

\(\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times \text{{speed}} + 1.8 \times \text{{speed}} \times \text{{grade}}\]\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times 2.8 + 1.8 \times 2.8 \times 0.06\]\[\text{{VO}}2_{\text{{relative}}} \approx 7.33 \, \text{{ml/kg/min}}\]\)

Absolute VO2:

\(\[\text{{VO}}2_{\text{{absolute}}} = \text{{VO}}2_{\text{{relative}}} \times \text{{body weight}}\]\[\text{{VO}}2_{\text{{absolute}}} = 7.33 \times 85\]\[\text{{VO}}2_{\text{{absolute}}} \approx 622.05 \, \text{{ml/min}}\)

2. For a 65 kg woman running on a treadmill at a speed of 6.0 mph with a 2% grade:

Relative VO2:

\(\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times \text{{speed}} + 1.8 \times \text{{speed}} \times \text{{grade}}\]\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times 6.0 + 1.8 \times 6.0 \times 0.02\]\[\text{{VO}}2_{\text{{relative}}} \approx 12.37 \, \text{{ml/kg/min}}\]\)

Absolute VO2:

\(\[\text{{VO}}2_{\text{{absolute}}} = \text{{VO}}2_{\text{{relative}}} \times \text{{body weight}}\]\[\text{{VO}}2_{\text{{absolute}}} = 12.37 \times 65\]\[\text{{VO}}2_{\text{{absolute}}} \approx 803.05 \, \text{{ml/min}}\]\)

These calculations provide the values for both the relative and absolute VO2 for the given scenarios. The relative VO2 is expressed in milliliters per kilogram per minute (ml/kg/min), and the absolute VO2 is given in milliliters per minute (ml/min).

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The power delivered to the pump is 3225.8 W.

Power is the the rate at which energy is consumed.

To calculate the minimum power the pump has to deliver to pump the fuel, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the power is 3225.8 W.

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Yes , Crystalline regions in thermoplastics help increase their strength, stiffness, and resistance to heat.

This is because the crystalline structure provides a more ordered arrangement of polymer chains, which increases the intermolecular forces and makes the material stronger.

Crystallinity in thermoplastics can be introduced by cooling the material from its molten state to its solid state, which allows the polymer chains to arrange themselves in a more ordered structure. This is known as "thermal crystallization."

Alternatively, crystallinity can be induced by stretching or orienting the material in a particular direction, which also causes the polymer chains to align themselves in a more ordered structure. This is known as "cold crystallization" or "orientation-induced crystallization."

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The absorbance when the light path is reduced to 2 cm would be 0.80. Option A is correct.

According to the Beer-Lambert law, the absorbance (A) of a solution is directly proportional to the concentration of the absorbing species, the light path length (l), and the molar absorptivity (ε) at a given wavelength of light. Mathematically, A = ε × l × c

In this case, we assume the concentration of the absorbing species and the wavelength of light are constant. We are given that the initial absorbance (A₁) is 0.40 and the light path length (l₁) is 1 cm.

Using the Beer-Lambert law, we can write:

A₁ = ε × l₁ × c

Solving for c, we get:

c = A₁ / (ε × l₁)

Substituting the given values, we get:

c = 0.40 / (ε × 1 cm)

Next, we can use the Beer-Lambert law again to determine the absorbance (A₂) when the light path length is 2 cm:

A₂ = ε × l₂ × c

Substituting the values of ε, c, and l₂, we get:

A₂ = ε × 2 cm × (0.40 / (ε × 1 cm))

Simplifying the expression, we get:

A2 = 0.80

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--The given question is incomplete, the complete question is

"Light is passed through a solution with a light path of 1 cm and the absorbance is recorded as 0.40. if the light passed through the same solution at the same wavelength and the light path is reduced to 2 cm, the absorbance should be: group of answer choices A) 80 B) 20 C) 60 D) 40"--

Answer:

Yes, because of the force of gas exploding the volcano from pressure is a force.

Answer:

Revolving

Explanation:

Answer:

Explanation:

Comment

You have to read this carefully enough that you don't mix up energy and forces.

Gravity is a force. If you don't believe me try jumping off a building. Which way are you going to go and why? Down because gravity attracts your mass.

So Magnetism must be a force as well. It acts in one direction, but not a specific one the way gravity acts). It also either attracts or repulses (pushes an object away)

Answer A

The kinetic energy of a neutron with a de Broglie wavelength of 7.2*10^-12 meters is approximately 2.073 electron volts.

The de-Broglie wavelength of a particle can be calculated using the equation λ = h / p, where λ is the wavelength, h is the Planck's constant (6.626 × 10^-34 J·s), and p is the momentum of the particle. For a non-relativistic particle, the momentum can be approximated as p = mv, where m is the mass of the particle and v is its velocity.

Given that a neutron is a particle with mass (m) approximately 1.675 × 10^-27 kg, we need to calculate the velocity first. Using the de Broglie equation, we have:

λ = h / (mv)

v = h / (mλ)

Substituting the values into the equation:

v = (6.626 × 10^-34 J·s) / (1.675 × 10^-27 kg * 7.2 × 10^-12 m)

Simplifying the equation and calculating the velocity, we find:

v ≈ 1310.5 m/s

Next, we can calculate the kinetic energy (KE) using the formula:

KE = (1/2)mv^2

KE = (1/2) * (1.675 × 10^-27 kg) * (1310.5 m/s)^2

Converting the result to electron volts (eV), we can use the conversion factor 1 eV = 1.602 × 10^-19 J:

KE ≈ 2.073 eV

Therefore, the kinetic energy of the neutron with a de Broglie wavelength of 7.2*10^-12 meters is approximately 2.073 electron volts.

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A force of 15 Newton stretches a spring to a total length of 30 cm and an additional force of 10 Newton's stretches to a Spring of 5 cm, the natural length of the spring is 58.5 cm

To find the natural length of the spring, we can use Hooke's law, which states that the force applied to a spring is directly proportional to the displacement of the spring from its natural length.

Let's denote the natural length of the spring as L.

According to the problem, a force of 15 Newton stretches the spring to a total length of 30 cm. This means that the displacement of the spring is 30 cm - L.

Using Hooke's law, we can set up the following equation:

Force = k * Displacement

where k is the spring constant.

For the first scenario, we have:
15 N = k * (30 cm - L)

Next, we are given that an additional force of 10 Newton's stretches the spring to a length of 5 cm. This implies that the displacement of the spring is 5 cm - L.

Using Hooke's law again, we can set up the following equation:

10 N = k * (5 cm - L)

Now we have two equations:

15 N = k * (30 cm - L)
10 N = k * (5 cm - L)

We can solve this system of equations to find the value of L, the natural length of the spring.

By dividing the second equation by 10, we get:

1 N = k * (0.5 cm - 0.1L)

Rearranging the equation, we have:

1 N = 0.5 k - 0.1kL

Now, let's substitute the value of k from the first equation into this equation:

1 N = 0.5 (15 N / (30 cm - L)) - 0.1 (15 N / (30 cm - L)) * L

Simplifying the equation, we get:

1 = 0.75 / (30 cm - L) - 1.5L / (30 cm - L)

Combining the terms on the right side of the equation, we have:

1 = (0.75 - 1.5L) / (30 cm - L)

Cross-multiplying, we get:

30 cm - L = 0.75 - 1.5L

Simplifying the equation, we have:

L - 1.5L = 0.75 - 30 cm

Combining like terms, we get:

-0.5L = -29.25 cm

Dividing both sides of the equation by -0.5, we get:

L = 58.5 cm

Therefore, the natural length of the spring is 58.5 cm.

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Answer:

I just did this problem so I promise you my answer is correct the total momentum of the system is 1717.

Explanation:

What you do is find the momentum of the first object which is simple enough 202(8.5) which equals 1717 and an object at rest will have no momentum which is shown when you have to plug in a 0 for velocity and multiply you get zero. Then to find the total you just add 1717+0 which obviously gives you 1717.

Answer:

1717

Explanation:

ez

The units for omega are radians per second.The period T of a wave is defined as the time it takes for one complete cycle.

It can be expressed in terms of the frequency f, velocity v, or angular frequency ω as:T = 1/f = 2π/ω = λ/v. where λ is the wavelength of the wave. The period T of a wave is defined as the time it takes for one complete cycle. It can be expressed in terms of frequency f as T = 1/f, or in terms of angular frequency omega as T = 2π/omega. It can also be expressed in terms of the speed of the wave v as T = distance/v, where distance is the wavelength of the wave.

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Answer:

at 10 seconds.. b/c that's when the velocity stops increasing..

Explanation:

A 70.0 cm long string is vibrating in such a manner that it forms a standing wave with three antinodes. Third harmonic

The maximum wave amplitude is produced at the , which is the site of constructive interference of the incoming and reflected waves. The point at which destructive interference reduces the wave's amplitude to zero is known as a node. It should be simple to see that the antinodes have the highest vertical velocity, whilst the nodes have a strictly horizontal velocity. An antinode forms on a vertical border because the horizontal velocity component disappears there, whereas nodes are typically seen outside of solid bounds. The size and depth of a bay or estuary have a significant impact on the standing wave's characteristics. The center and two ends of a totally closed basin are referred to as nodes and antinodes, respectively.

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Answer:

Mantlee

Explanation:

The upward force exerted by the elevator floor on the passenger is 7.6 times mass of the passenger.

A force in physics is an effect that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given in question elevator accelerates downwards with an acceleration of 1.2 m/s². There is acceleration due to gravity working downward which is 9.8 m/s².

So, net acceleration due to gravity is given as 9.8 - 1.2 = 7.6 m/s²

The upward force exerted by the elevator floor on the passenger is mass times acceleration, 7.6 times mass of passenger.

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Teams are not allowed to exceed strict salary caps. Soft salary caps enable teams to go over the salary cap even though these teams will have fewer free agency options.

Salary caps can be a major sticking point in discussions between league administration and players' unions because they restrict players' and teams' ability to negotiate greater wages even when a team is making considerable profits. A number of player strikes and owner lockouts have also targeted them.

Because "bigger" clubs are forced to give up their financial advantages due to a payroll cap, smaller clubs can compete on an equal footing. Another benefit of a financial cap is that it makes teams less likely to form powerful monopolies, increasing the level of competition in the league.

Hard salary caps are not to be surpassed by teams. Although these teams will have fewer free agency possibilities, soft salary caps allow teams to exceed the salary cap. Teams that go above the luxury tax cap are vulnerable (a tax on every dollar spent over the luxury tax cap).

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Answer:

As you may know, each element has a "fixed" number of protons and electrons.

These electrons live in elliptical orbits around the nucleus, called valence levels or energy levels.

We know that as further away are the orbits from the nucleus, the more energy has the electrons in it. (And those energies are fixed)

Now, when an electron jumps from a level to another, there is also a jump in energy, and that jump depends only on the levels, then the jump in energy is fixed.

Particularly, when an electron jumps from a more energetic level to a less energetic one, that change in energy must be compensated in some way, and that way is by radiating a photon whose energy is exactly the same as the energy of the jump.

And the energy of a photon is related to the wavelength of the photon, then we can conclude that for a given element, the possible jumps of energy levels are known, meaning that the possible "jumps in energy" are known, which means that the wavelengths of the radiated photons also are known. Then by looking at the colors of the bands (whose depend on the wavelength of the radiated photons) we can know almost exactly what elements are radiating them.

Given what we know, the statement that "if the part you are designing is completely symmetric, you can complete the part by designing just half of the part and using one mirror feature" is true.

Symmetry is when something is exactly the same on either side.

This line can be drawn anywhere but is most commonly a vertical line splitting the object in question down the middle.

Since the object is identical on both sides, using a mirror to flip the completed half to the other side, will effectively give you the finished product.

Therefore, given that when something is entirely and perfectly symmetric it will be exactly the same on either side, it is true to say that by designing half of the end product and using a mirror effect to flip it to the other side, you can complete it.

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