Two ropes support a load of 478 kg. The two ropes are perpendicular to each other, and the tension in the first rope is 2. 2 times that of the second rope. Find the tension in the second rope. The acceleration of gravity is 9. 8 m/s 2. Answer in units of N

To determine the number of half-lives that have elapsed, we need to compare the ratio of 14C to 14N atoms found in the hip bone fragment.

The ratio of 1 14C atom for every 31 14N atoms suggests that the hip bone fragment contains a smaller amount of 14C compared to the expected ratio found in a living organism. Since 14C undergoes radioactive decay with a half-life of approximately 5730 years, we can calculate the number of half-lives that have elapsed by observing how many times the ratio needs to double to reach the expected ratio.

In this case, if the expected ratio is 1:1, then the observed ratio of 1:31 would require five doublings to reach 1:1. Therefore, approximately five half-lives have elapsed since the death of the organism from which the hip bone fragment originated.

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At the summit of Mount Shasta,

Atmospheric pressure, Patm = 58.5 kPa

                                             = 58500Pa

Let h be the height that water will reach when siphoned at the summit.

58500 Pa = h x 1000 kg/m^3 X 9.8 m/s^2

h = 58500 Pa/1000 kg/m^3 X 9.8 m/s^2

h = 5.97 m

Therefore, at the summit the water will rise to a height of 5.97 m, which is less than 8.5 m.

Hence, the student will not be successful in her attempt.

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The summit the water will rise to a height of 5.97 m, which is less than 5.97 m.

Atmospheric pressure is the pressure of the air or gas surrounding the Earth. It is caused by the weight of the air pushing down on the Earth's surface. Atmospheric pressure is usually measured in millibars (mb). The average atmospheric pressure at sea level is 1013.25 mb. This value can change due to differences in weather and altitude. Low atmospheric pressure is associated with storms and high atmospheric pressure is associated with fair weather. Atmospheric pressure is important to the functioning of many everyday items, such as aircraft, car engines, and weather instruments. Additionally, atmospheric pressure changes are used in weather forecasting and to predict the movement of air masses, fronts, and storms.

At the summit of Mount Shasta,

Atmospheric pressure, Patm = 58.5 kPa

                                            = 58500Pa

Let h be the height that water will reach when siphoned at the summit.

58500 Pa = h x 1000 kg/m^3 X 9.8 m/s^2

h = 58500 Pa/1000 kg/m^3 X 9.8 m/s^2

h = 5.97 m

Therefore, at the summit the water will rise to a height of 5.97 m, which is less than 5.97 m

Hence, the student will not be successful in her attempt.

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Answer:

147N

Explanation:

For an abject moving at constant velocity or at rest, the net force equals 0. Therefore, since there is a 147N force exerted forward, there must also be a 147N friction force dragging it.

Answer:

Energy is: the ability to do work

The formula for energy is: power x time = energy

Explanation:

Hope this helps (there isn't really an explanation)

Answer:

A good hand soap effectively kills germs without causing irritation or drying out your skin. For a cleanse that's both gentle on your skin and tough on germs, we looked for soaps made with moisturizing ingredients like olive oil, aloe vera, and glycerin.

Explanation:

The negative charge placed at the center of a ring of uniform positive charge will experience an attractive force towards the positive charges, causing it to oscillate back and forth along a diameter of the ring.

When a negative charge is placed at the center of a ring of uniform positive charge, it experiences a net attractive force due to the positive charges. However, since the positive charges are uniformly distributed along the ring, the attractive forces from opposite sides of the ring cancel each other out, resulting in no net force in the radial direction.

The negative charge is free to move only along a diameter of the ring, oscillating back and forth as it experiences the attractive forces from the positive charges. This motion continues as long as the charges remain undisturbed and no other forces act upon the system.

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Answer:

The principle of moments states that when in equilibrium the total sum of the anti clockwise moment is equal to the total sum of the clockwise moment.

Explanation:

hope this helps

According to the principle of moments, it states that when in equilibrium, the entire sum of the anti-clockwise moment equals the total sum of the clockwise moment. When a system is stable or balanced, all of the forces operating on it cancel each other out, resulting in equilibrium.

When a star is so dense that its atoms have their electrons smashed in toward the nucleus (resulting in densities about a million times greater than water), the resulting material is called a Neutron star.

Stars are present in the galaxy that have the ability to generate their own light. They are both quite hot and very huge.

They are largely formed of hydrogen, with a trace of helium thrown in for good measure.

The sun is also a star, and its energy and light play an important part in the survival of all kinds of life on Earth.

When a star is so dense that its atoms have their electrons smashed in toward the nucleus (resulting in densities about a million times greater than water), the resulting material is called a Neutron star.

Hence the correct answer is a neutron star.

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Answer:

pool

Explanation:

I think

Answer:

saddle weighs 250 newtons. The mass of the saddle is ____250/9.8 kg______ kilograms. Use g = 9.8 N/kg for gravity.

To determine the experimental error, we need to compare the experimental value with the expected or theoretical value.

At STP (Standard Temperature and Pressure), 1 mole of gas occupies a volume of 22.4 L.

Experimental error can be calculated using the following formula:

Experimental error = |(experimental value - theoretical value) / theoretical value| x 100%

Substituting the values given:

Experimental error = |(21.4 L - 22.4 L) / 22.4 L| x 100%

Experimental error = |-0.0446| x 100%

Experimental error = 4.46%

Therefore, the experimental error is 4.46%.

Standard Temperature and Pressure (STP) is a standard set of conditions for experimental measurements of gases. The standard temperature is 0°C (273.15 K or 32°F), and the standard pressure is 1 atmosphere (atm) or 101.325 kilopascals (kPa).

At STP, 1 mole of an ideal gas occupies a volume of 22.4 liters (L). This is known as the molar volume of a gas at STP and is derived from the ideal gas law, which relates the pressure (P), volume (V), number of moles (n), and temperature (T) of a gas:

PV = nRT

Where R is the gas constant. At STP, the values of P, V, and T are fixed, allowing us to calculate the number of moles of gas present (1 mole) and the volume occupied by that amount of gas (22.4 L).

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Light is radiant energy in the form of a wave of electromagnetic energy.

Light is a form of electromagnetic radiation that is visible to the human eye. It is made up of a stream of energy particles, called photons, that travel in a wave-like pattern. It has various properties, including intensity, color, and direction, which can be used to explain its behavior. It can be described as having both a particle-like nature and a wave-like nature. The particle-like nature of light is exhibited in the way it travels in packets of energy, known as photons. The wave-like nature of light is demonstrated by the way it can be bent, diffracted, and refracted.
The intensity of light is determined by the amount of energy that a photon has. The color of light is determined by the wavelength of the light, with different colors having different wavelengths. Direction is also an important property of light, as it determines how light will be bent when it passes through an obstacle or is reflected off of a surface.
Light plays a critical role in the lives of humans and other organisms. It is used in vision, to help organisms understand the world around them. Light also has numerous applications in science and technology, such as in communications, photography, and solar energy.
In conclusion, light is a form of electromagnetic radiation composed of photons that travel in a wave-like pattern. It has various properties, including intensity, color, and direction, that are used to explain its behavior. Light is important for vision and has various uses in science and technology.

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Answer:

Given,

A 5 kg mass is at the origin. A 7 kg mass is located at x = 0.6 m and a 4 kg mass is at x = 0.9 m.

To find,

the net gravitational force on the 5 kg mass.

we know, from Newton's gravitational law, two massive bodies attract each other by a force , F = Gm₁m₂/r²

so, 7 kg mass attracts 5kg mass by the force, F₁ = G(7kg)(5kg)/(0.6)²

= 35G/0.36 = 97.22G

similarly, 4kg mass attracts 5kg mass by the force, F₂ = G(4kg)(5kg)/(0.9)²

= 20G/0.81 = 24.69G

net gravitational force = F₁ + F₂

= 97.22G + 24.69G

= 121.91G

we know, G = 6.67 × 10¯¹¹ Nm²/Kg²

F = 121.91 × 6.67 × 10¯¹¹

= 813.1397 × 10¯¹¹ N

= 8.131397 × 10^-9 N ≈ 8.13 × 10^-9 N

Therefore net gravitational force acting on mass 5kg is 8.13 × 10^-9 N

The value of the angular momentum quantum number associated with the 5d orbital is \($\ell = 2$\).

In the quantum mechanical description of atomic structure, the angular momentum quantum number \(($\ell$)\) is a fundamental property that characterizes the orbital angular momentum of an electron in an atom. It determines the shape of the orbital and the allowed values for the magnetic quantum number \(($m_\ell$)\). The \($\ell$\) quantum number can range from 0 to (n-1), where n is the principal quantum number.

For the 5d orbital, the principal quantum number n is 5. Since \($\ell$\) can range from 0 to (n-1), the possible values for \($\ell$\) in the 5d orbital are 0, 1, 2, 3, and 4. However, based on the Aufbau principle and the filling order of orbitals, the 5d orbital is filled after the 4d orbital. Since the 4d orbital has \($\ell = 2$\), the 5d orbital also has \($\ell = 2$\). This means that the 5d orbital has a d-shaped symmetry and can have five different orientations in space.

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Answer:

Explanation:

Power is the rate at which work is done and can be found by using the formula

\(p = \frac{w}{t} \\ \)

p is power in Watts ( W)

w is the workdone in J

t is time in s

From the question

w = 10,000 J

t = 4 s

We have

\(p = \frac{10000}{4} = 2500 \\ \)

We have the final answer as

Hope this helps you

To calculate the average velocity of the airplane, we need to divide the total displacement by the total time taken. The displacement is the distance traveled in a specific direction.

Given:

Distance traveled (displacement) = 1,592 miles (east)

Time taken = 3.68 hours

Average Velocity = Displacement / Time

Since the displacement is in the east direction, we consider it positive.

Average Velocity = 1,592 miles / 3.68 hours ≈ 432 miles per hour (rounded to the nearest whole number)

Therefore, the average velocity of the airplane is approximately 432 mph.

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Answer:

Based on what we have learned so far, in what ways have the experiences of Asian-Canadians stayed the same over time? Why do you think these similarities exist? Please give specific examples to support your ideas.

Explanation:

Answer:

\(this \: is \: due \: to \: both \: spectrum \: having \\ \: the \: same \: or \: almost \: the \: same \: wave \: speed.\)

Answer:

Actually, 4.5cm could be marked at the darker line between 4&5 in the ruler,

Or you can count 5 lines from 4 towards 5(towards your right) and the fifth line you count will be 4.5 and you can mark that as the asnwer

Answer:

true

Explanation:

is an important component of physical fitness and has many positive effects on the body

Answer:

It's True

Developing flexibility helps yourself:

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The required volume for the given density and mass is 2.15 ml.

The amount of three-dimensional space occupied by an object or a closed surface is expressed mathematically as volume.

Density is calculated by comparing an object's mass to its volume. The amount of matter in a specific volume of an object is referred to as high density.

The mathematical formula for density is,

Density = Mass/Volume ----(1)

Given that,

Mass = 28 gm

Density = 13 gm/ml

From the above equation (1), making volume as subject, we have

Volume = Mass/Density

Substituting the values, we have

Volume = 28/13 = 2.15 ml

Thus, the required volume is 2.15 ml.

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The statement that stars collide with one another as often as galaxies do is false. While galaxy collisions do occur, they are relatively rare compared to the number of stars in a galaxy.

In fact, the chances of two stars colliding in our own Milky Way galaxy are extremely low. The other statements are true: collisions between spiral galaxies can result in the formation of an elliptical galaxy, the Milky Way does have two giant gamma ray emitting bubbles above and below its center, light from a quasar has been identified with a similar composition to the sun, and the Milky Way is indeed one of at least 54 galaxies in the local group. The composition of galaxies, including their stars, gas, and dust, is a complex field of study that continues to yield new insights into the nature of the universe.

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Answer:

b: density decreases

e: volume increases

Explanation:

When the water changes to ice, there won't be a loss of water, so the mass will be the same. However the ice will occupy more space, so the volume will increase. Then, since density is the mass divided by the volume, if the volume increase and the mass stays the same, the density decreases.

So, the answers are:

b: density decreases

e: volume increases

Pluto is missing the third criterion for planethood which states that 3, it must have cleared the neighborhood around its orbit.

Pluto is a dwarf planet in our solar system, located in the Kuiper Belt beyond the orbit of Neptune. It was discovered in 1930 and was considered the ninth planet in our solar system until 2006, when it was reclassified as a dwarf planet due to its size and failure to meet the third criterion for planethood, which states that a planet must have cleared its orbit of other debris.

Pluto has five known moons and is primarily composed of rock and ice. It has a highly elliptical orbit that takes it closer to the sun than Neptune at certain points, but also farther away than any other planet in our solar system.

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In the dry and extremely hot conditions of Southern California during summer, at approximately 1 pm, one would expect to see that the stomata of plants are closed. This is because to avoid excessive water loss through transpiration, plants tend to close their stomata, which are tiny openings on the surface of leaves responsible for gas exchange. Closing the stomata helps to conserve water by reducing the loss of water vapor from the plant's leaves.

Stomata play a crucial role in gas exchange during photosynthesis. However, when plants are exposed to hot and dry conditions, the closure of stomata becomes essential to prevent excessive water loss. By closing their stomata, plants can reduce transpiration and conserve water. Transpiration is the process through which water vapor escapes from the plant through the stomata.

Closing the stomata helps in minimizing water loss by reducing the evaporation of water from the plant's leaves into the surrounding dry air. This is particularly important in drought conditions when water availability is limited. By conserving water, plants can better withstand the dry and hot environment.

While the closure of stomata helps in water conservation, it also has an impact on photosynthesis. When the stomata are closed, the exchange of gases, including carbon dioxide (CO2) for photosynthesis, is restricted. As a result, the rate of photosynthesis decreases. However, in extremely hot and dry conditions, the priority for the plant is to conserve water rather than carry out photosynthesis. Therefore, it is expected that the stomata will be closed to limit water loss, even though this reduces the availability of CO2 for photosynthesis.

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Answer:

A. TRUE

B. TRUE

C. It depends on the mass of both the objects

D. TRUE

Average number of team members who reached their goal per day = 4.2

Number of team members that reached their goals on Monday = 5

Number of team members that reached their goals on Tuesday = 4

Number of team members that reached their goals on Wednesday = 2

Number of team members that reached their goals on Thursday = 7

Number of team members that reached their goals on Friday = 3

Total number of team members that reached their goals = 5 + 4 + 2 + 7 + 3

Total number of team members that reached their goals = 21

Average number of team members who reached their goal per day = 21/5

Average number of team members who reached their goal per day = 4.2

The average acceleration over this interval is  -1 \(m/s^2\)

The average acceleration of the box during this interval can be calculated by using the formula for average acceleration, which is:

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

In this case, the initial velocity is 5 m/s, the final velocity is 2 m/s, and the time interval is 3 seconds. Substituting these values into the formula gives:

Average acceleration = (2 m/s - 5 m/s) / 3 s
= -1 \(m/s^2\)

The negative sign in the answer indicates that the acceleration is in the opposite direction to the initial motion of the box. This means that the box is slowing down during this interval. The average acceleration represents the rate at which the velocity of the box is changing over the given time interval. In this case, the box is slowing down at an average rate of 1 \(m/s^2\) over the three-second interval. This information can be useful in understanding the motion of the box and predicting its future motion.

Overall, the average acceleration of the box over this interval is -1 \(m/s^2\), indicating that the box is slowing down at a constant rate during this time.

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The shortest distance in which the car can stop, after the brakes are applied, without the groceries sliding off the seat is 27.5 m.

We can use the equations of motion for constant acceleration to solve this problem. The acceleration of the car when the brakes are applied is given by, a = -μg, where μ is the coefficient of friction, g is the acceleration due to gravity (9.8 m/s^2), and the negative sign indicates that the acceleration is in the opposite direction to the motion of the car. We need to find the distance, d, that the car travels before coming to a stop.

v^2 = u^2 + 2as

where v is the final velocity (0 m/s), u is the initial velocity (16 m/s), a is the acceleration (-μg), and s is the distance traveled.

Solving for s,

s = (v^2 - u^2) / (2a)

Plugging in the values,

s = (0 - (16 m/s)^2) / (2(-0.65)(9.8 m/s^2)) = 27.5 m

So the car will travel 27.5 m before coming to a stop.

Now we need to check if the groceries will slide off the seat during braking. The maximum force of friction that the seat can exert on the groceries is given by,

F_friction = μ_friction * F_normal

where μ_friction is the coefficient of friction (0.45 for kinetic friction), and F_normal is the normal force exerted by the seat on the groceries. The normal force is equal to the weight of the groceries, which is,

F_normal = m * g = 7.0 kg * 9.8 m/s^2 = 68.6 N

So the maximum force of friction is,

F_friction = 0.45 * 68.6 N = 30.9 N

The force of friction during braking is given by,

F_braking = m * a = 7.0 kg * (-0.65) * 9.8 m/s^2 = -45.4 N

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