a balance in an organism's access to the resources it need may make its life.............​

C. 2400 W. The average power supplied by the student running up the flight of stairs is 2400 watts. To calculate the average power supplied by the student, we can use the formula:

Power = Work / Time,

where Power is measured in watts (W), Work is measured in joules (J), and Time is measured in seconds (s).

The work done by the student is given by:

Work = Force × Distance,

where Force is the force applied by the student and Distance is the vertical distance traveled.

Given:

Force = 600 N,

Distance = 4.0 m,

Time = 4.2 s.

First, let's calculate the work done:

Work = 600 N × 4.0 m = 2400 J.

Next, we can calculate the average power:

Power = Work / Time = 2400 J / 4.2 s.

Calculating this expression, we find the average power supplied by the student.

Now, let's evaluate the answer options:

A. 630 W

B. 571 W

C. 2400 W

D. 35.7 W

By comparing the calculated value of the average power with the given answer options, we find that the correct answer is:

C. 2400 W.

Therefore, the average power supplied by the student running up the flight of stairs is 2400 watts.

Learn more about power and work calculations in physics here:

brainly.com/question/32299786

#SPJ11.

Answer:

I would say near the end of the slide.

From the principle of the conservation of energy, the velocity of the moving skater would be transferred to the stationary skater.

We know that according to the principle of the conservation of energy, energy can neither be created nor destroyed but we can be able to convert the energy from one form to the other. Given the fact that the energy of the object can be converted, we can also look at the collision as being an inelastic Collison.

Let us recall that a collsion is said to be in elastic if the momemtum and thge kinetic energy of the colliding particles is not conserved. The simple implication of this is that the objects would stick together and then move at a common velocity after the collision must have taken place in the system.

Learn more about energy conservation:https://brainly.com/question/13949051

#SPJ1

Surface tension is the cohesive force acting at the surface of a liquid, causing it to behave like a stretched elastic sheet. It is a phenomenon that arises due to the intermolecular forces between the liquid molecules, which pull the molecules at the surface inward, creating a "skin" or surface layer that resists external forces.

Surface tension can be understood by considering the molecules within a liquid. The molecules in the bulk of the liquid experience cohesive forces in all directions, as they are surrounded by neighboring molecules. However, the molecules at the surface do not have molecules above them, resulting in a net inward force. This force causes the surface to contract and minimize its area.

Surface tension is measured in units of force per unit length. The SI unit for surface tension is Newton per meter (N/m) or equivalently, kilogram per second squared per meter (kg/s²m). It represents the amount of force required to stretch or break a liquid surface.

Surface tension plays a crucial role in various natural phenomena and everyday life. It allows insects like water striders to walk on water, enables capillary action in plants, contributes to the formation of droplets, and affects the behavior of liquids in narrow tubes and capillaries. Understanding surface tension is essential in fields such as fluid dynamics, material science, chemistry, and biology.

Viscosity and surface tension are related but distinct properties of fluids. Viscosity refers to the resistance of a fluid to flow or shear, while surface tension relates to the cohesive forces acting at the surface of a liquid.

Viscosity is a measure of a fluid's internal friction, determining how easily it flows. It depends on the internal structure and molecular interactions within the fluid. Viscosity is measured in units of force per unit area per unit velocity gradient, such as Pascal-second (Pa·s) in the SI system. The higher the viscosity, the more resistant a fluid is to flow.

Surface tension, on the other hand, is concerned with the behavior of the surface of a liquid and arises due to the imbalance of forces at the liquid-air interface. It is a property related to intermolecular forces between liquid molecules. Surface tension is measured in units of force per unit length, such as Newton per meter (N/m) or kilogram per second squared per meter (kg/s²m).

While both viscosity and surface tension involve forces within the liquid, viscosity relates to the internal flow of the fluid, while surface tension refers to the behavior of the liquid surface. Viscosity determines the resistance to flow, while surface tension influences phenomena like wetting, droplet formation, and capillary action.

Learn more about surface tension

brainly.com/question/30467464

#SPJ11

The height of the wall to protect from the ocean will be 200 meters

A structural engineer is using this table to design a wall to protect a city near the ocean the height of the wall will be 200 meters.

It is given in the graph that from 2009 to 2011 the highest peak of the ocean waves reached the height between 150 to 200 meters.

So the structural engineer should consider the data given in the graph that is more than the highest peak given in the graph so the height of the wall will be 200 meters

Thus the height of the wall to protect from the ocean will be 200 meters

To know more about  graphical analysis follow

https://brainly.com/question/10609446

The speed of the moving train is approximately 33.5 m/s.

The beat frequency is given by the difference in frequency between the two horns, which is equal to the Doppler shift in frequency due to the motion of the moving train. Using the formula for the Doppler effect, we can solve for the speed of the train:

\(f_b = f_s\dfrac{(v + v_o)}{(v + v_s)}\)

where \(f_b\) is the beat frequency, \(f_s\) is the horn frequency, v is the speed of sound, \(v_o\) is the observer's speed, and \(v_s\) is the speed of the source.

We know that \(f_s\) = 410 Hz and \(f_b\) = 35 Hz. The speed of sound in air at standard temperature and pressure is approximately 343 m/s. Since the observer is stationary, \(v_o\) = 0.

Solving for \(v_s\), we get:

\(v_s = \dfrac{(f_s + f_b)}{f_s - 1} \times v\)

\(v_s\) = ((410 Hz + 35 Hz) / 410 Hz - 1) * 343 m/s

\(v_s\) = 33.5 m/s

To know more about frequency, here

brainly.com/question/29664449

#SPJ1

The brakes do

W = ∆K = 0 - 1/2 (1800 kg) (40 m/s)² = -1.44 MJ (megaJoules)

of work on the car to stop it. They apply a negative force since the braking opposes the car's forward displacement, so the car stops over a distance x such that

W = (-24.6 kN) x   ==>   x ≈ 58.5 m

Answer:False.

Explanation: HIV is a viruse that only shows symptoms after a few weeks. in Fact HIV does not show any physical symptoms. So, no you can not tell if someone has or is been infected by HIV by directly looking at them.

Have a Nice Day!!! =)

Answer:

55.84 look at periodic table

so 55.84*3= 167.52gFe

Conservation of momentum describes what happens in a collision. When two objects collide, the total momentum of the objects before the collision equals the total momentum of the objects after the collision.

What is Collision?

A collision occurs when two or more objects come into contact with each other, and as a result, they exchange energy, momentum, and/or other physical quantities. Collisions can be either elastic or inelastic, depending on whether or not there is a loss of kinetic energy during the interaction.

Newtons laws of motion can be used to explain events in the natural world, such as how a pencil falls to the floor and how planets revolve around the sun. In the absence of air, all objects fall at the same rate, because the force of earth’s gravity causes objects to accelerate by 9.8 m/s, downwards, towards the ground. Air resistance can eventually counteract the acceleration from gravity. This is why a flat piece of paper falls slowly, but when the same paper is crumpled, it falls quickly. When the upward force of air resistance on an object equals the downward force of gravity on the object, it’s velocity stops increasing. This is called the object’s terminal velocity. Satellites orbit Earth because of gravity. They travel very fast, but with each meter forward that they travel, they decelerate just a tiny bit due to Earth’s gravity. Astronauts in Earth’s orbit experience weightlessness because they are in freefall. Without gravity, satellites would continue in a straight line away from Earth. Newton’s laws also describe what happens in collisions. For example, in a moving car, a passenger is also in motion. When the car comes to a sudden stop, the passenger continues in motion. To protect the passenger from striking the inside of the car, seatbelts, airbags, and other safety features decelerate passengers slowly.

Learn more about Collision from the given link

https://brainly.com/question/12644900

#SPJ1

The ticker tape is pulled through the timer once it's powered, which creates a dot along the length of this paper tape at fixed time intervals.

A ticker timer can be defined as a scientific apparatus that is designed and developed to measure time in seconds. Thus, a ticker timer can be used to measure short intervals of time by making dots on a paper tape at regular (fixed) intervals.

By design, a ticker timer comprises a magnet, carbon paper disk and a ticker tape which is pulled through the timer once it's powered, so as to create a dot along the length of this paper tape at fixed time intervals.

Read more on ticker timer here: https://brainly.com/question/4583195

#SPJ1

Answer:

The correct option is;

Amplitude

Explanation:

When transmitting picture signals over the air by broadcasting stations, the signals are shifted into high frequency channels of Very High Frequency (VHF) or Ultra High Frequency (UHF) carrier currents and imposing the the television signal by changing the amplitude of the high frequency carrier current to match the transmitted television signal waveform shape

a. The centripetal acceleration of the car is 0.5 m/s².

b. The centripetal force on the car is 600 N.

c. The coefficient of static friction between tires and the road is 0.051.

d. The car's speed is doubled, we need a coefficient of static friction of 0.204 to prevent the car from sliding.

a. The formula for the centripetal acceleration of the car is given as below:

ac = v²/r

where ac is the centripetal acceleration,

v is the speed, and

r is the radius of curvature of the circular path.

Substituting the values given in the problem, we get:

ac = (20 m/s)²/800 m = 0.5 m/s²

b. The formula for the centripetal force of the car is given as below:

F = mac

where F is the centripetal force,

m is the mass of the car, and

ac is the centripetal acceleration.

Substituting the values given in the problem, we get:

F = (1200 kg)(0.5 m/s²) = 600 N

c. The formula for the maximum static frictional force is given as below:

\(f_{max}\) = μsN

where \(f_{max}\) is the maximum static frictional force,

μs is the coefficient of static friction, and

N is the normal force acting on the car.

For a car moving in a circular path, the normal force is equal to the weight of the car, which is given by:

N = mg

where m is the mass of the car and g is the acceleration due to gravity (9.8 m/s²).

Substituting the above equations and solving for μs, we get:

\(f_{max}\) = μsN

⇒ μs = \(f_{max}\) / N

Substituting the values given in the problem, we get:

\(f_{max}\) = mac = (1200 kg)(0.5 m/s²) = 600 N and

N = mg = (1200 kg)(9.8 m/s²) = 11760 N

Therefore,μs = 600 N/11760 N = 0.051

d. Doubling the speed of the car will cause the centripetal acceleration to double as well.

The formula for centripetal acceleration is given as:

ac = v²/r,

where ac is the centripetal acceleration,

v is the speed, and

r is the radius of curvature of the circular path.

Substituting the new speed (40 m/s) into this formula, we get:

ac = (40 m/s)²/800 m = 2 m/s²

Therefore, the new centripetal acceleration is 2 m/s².

Using the same formula as in part (c), we can find the new coefficient of static friction.

The maximum static frictional force is still equal to the centripetal force, which is given by:

F = mac = (1200 kg)(2 m/s²) = 2400 N

Therefore,

μs = \(f_{max}\)/N = 2400 N/11760 N = 0.204

For similar question on centripetal force

https://brainly.com/question/20905151

#SPJ11

Answer:

7t

Explanation:

Answer:

I believe it would be B.

Explanation:

When a object is in a gas or liquid form then take whatever the form of the container they are in is. Meaning they can change their volume depending on the container. Also a characteristic of gas and liquid is to take the shape of the container. This may be wrong but this is what I would choose

Answer: A is actually the correct answer. The guy who said B is wrong

Explanation: Gas and plasma both have Changing shape and changing volume

Answer:

0

Explanation:

Potential energy of the body is converted to kinectic enery as it falls thus the formula massx gravity x height at the instant it hits the ground the height is 0 putting this into the equation the potential energy is 0 since the potential energy is converted to kinectic energy potential energy is equal to kinectic energy then the kinectic energy at the instant it hits the ground is 0

As the ball falls, its potential energy starts to change into kinetic energy. When the ball hits the floor, its kinetic energy will be 200J.

A body's capacity for work is measured in terms of energy. It cannot be produced or eliminated. There are numerous types of energy, including thermal, electrical, fusion, electrical, and nuclear. Energy has the ability to change its forms.

Given parameters:

Potential energy of the ball when it is on a shelf, V = 200 J.

When the ball starts to fall, its potential energy due to gravity starts converting into kinetic energy. And as much the ball goes down, its kinetic energy will increase and potential energy will decrease.

At the instant the ball hits the floor, its potential energy due to gravity becomes zero and totally converted to kinetic energy.

Hence, the amount of kinetic energy the ball has at the instant it hits the floor is 200 J.

Learn more about energy here:

https://brainly.com/question/11399976

#SPJ5

The magnitude of the gravitational force of the Moon on Earth is also 1.99 x 10^20 N. The gravitational force of the moon on Earth.

The magnitude of the gravitational force of the moon on Earth is the same as the magnitude of the gravitational force of Earth on the moon, as stated by Newton's third law. However, let's look at how the gravitational force between these two celestial objects is calculated.

In general, the gravitational force between two objects can be calculated using the formula: F = (Gm1m2)/r^2 where G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers of mass.

The mass of the Earth is approximately 81 times greater than that of the Moon. The mass of the Earth is about 5.97 x 10^24 kg, while the mass of the Moon is approximately 7.34 x 10^22 kg.

As a result, we may use these values to calculate the magnitude of the gravitational force exerted by Earth on the Moon.

Assume that the distance between the centers of mass of Earth and Moon is 384,400 km.

Furthermore, G has a value of 6.67 x 10^-11 Nm^2/kg^2.

Using the formula: F = (Gm1m2)/r^2

we get: F = (6.67 x 10^-11 Nm^2/kg^2)(5.97 x 10^24 kg)(7.34 x 10^22 kg)/(384,400,000 m)^2

= 1.99 x 10^20 N

The magnitude of the gravitational force of Earth on the Moon is about 1.99 x 10^20 N.

Again, due to Newton's third law, the magnitude of the gravitational force of the Moon on Earth is also 1.99 x 10^20 N.

Therefore, this is our final answer.

To learn more about gravitational visit;

https://brainly.com/question/3009841

#SPJ11

Answer:

that is what I got for my answer

Explanation:

I Calculate it and I got 1600

Answer:

\(T=62.9*10^{-9}\)

Explanation:

From the question we are told that:

Index of refraction of Rinestones \(\gamma_1 =1.5\)

Index of refraction of silicon \(\gamma_2 =2.0\)

Wavelength  \(\lambda=576nm=576*10^{-9}\)

Let each layer have thickness T

Therefore

Total Thickness =2T

Generally the equation for  Constructive interference is mathematically given by

\(2T=(m+0.5)\frac{l\lambda}{\gamma_2}\)

Where

 \(M=0\)

 \(2T=(0+0.5)\frac{576*10^{-9}}{2*2.0}\)

 \(T=62.9*10^{-9}\)

A force of 80 newtons pushes a 50.-kilogram object across a level floor for 8.0 meters. The work done is 640 J. The option C is correct answer.

Work is defined as the product of force and displacement in the direction of the force. Work is a physical quantity that measures the amount of energy transferred to or from an object due to the application of a force. It is calculated by multiplying the magnitude of the force applied to an object by the displacement of the object in the direction of the force.

Displacement refers to the change in the position of an object, typically measured in terms of distance and direction from the starting point to the ending point. It is a vector quantity, which means it has both magnitude and direction. Therefore, the work done is:

To calculate the work done, we can use the formula:

Work = Force × Distance × cos(theta)

Where,

Force = 80 N (given)

Distance = 8.0 m (given)

theta = angle between the force and the direction of motion (assumed to be 0 degrees since the force is pushing in the same direction as the displacement)

Plugging in the values:

Work = 80 N × 8.0 m × cos(0°)

Work = 80 N × 8.0 m × 1 (cos(0°) = 1)

Work = 640 J

Therefore, the work done is 640 J, which corresponds to option (C).

To learn more about Force here: https://brainly.com/question/12970081

#SPJ11

Complete Question:

A force of 80 newtons pushes a 50.-kilogram object across a level floor for 8.0 meters. The work done is

(A) 10 J

(B) 400 J

(C) 640 J

(D) 3,920 J

The energy needed to heat the water and the copper tank to 55°C is 25,083,080 J.

Q = mCΔT

m = 150 kg (mass of water)

C = 4.18 J/g°C (specific heat capacity of water)

ΔT = 55°C - 15°C = 40°C (change in temperature)

Using the formula, we get:

\(Q_{water}\) = mCΔT

\(Q_{water}\) = (150 kg) x (4.18 J/g°C) x (40°C)

\(Q_{water}\) = 25,080,000 J

m = 20 kg (mass of tank)

C = 0.385 J/g°C (specific heat capacity of copper)

ΔT = 55°C - 15°C = 40°C (change in temperature)

Using the formula, we get:

\(Q_{tank}\) = mCΔT

\(Q_{tank}\) = (20 kg) x (0.385 J/g°C) x (40°C)

\(Q_{tank}\)= 3080 J

Finally, we can add the two energies together to get the total energy needed:

\(Q_{total}\) = \(Q_{water}\) \(+\) \(Q_{tank}\)

\(Q_{total}\) \(= 25,080,000 J + 3080 J\)

\(Q_{total}\) \(= 25,083,080 J\)

Energy is a fundamental concept that refers to the ability of a physical system to do work or cause a change. It is a scalar quantity that is measured in units of joules (J) in the International System of Units (SI). According to the law of conservation of energy, energy cannot be created or destroyed, but it can be transformed from one form to another. This means that the total amount of energy in a closed system remains constant.

Energy is a crucial concept in many areas of physics, including mechanics, thermodynamics, and electromagnetism. Understanding energy is essential for understanding how the physical world works, and it has numerous applications in technology and everyday life, from powering our homes and vehicles to the production of food and the functioning of our bodies.

To learn more about Energy visit here:

brainly.com/question/2409175

#SPJ4

The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

To know more about damping ratios, refer here:

https://brainly.com/question/31463018#

#SPJ11

Infrared and visible light are also not blocked by the ozone layer and can pass through it. Ultraviolet

The ozone layer in the stratosphere absorbs and blocks most of the ultraviolet radiation from the sun. This is important as ultraviolet radiation can cause skin damage and increase the risk of skin cancer. Gamma rays and radio waves are not affected by the ozone layer as they have too high or low frequencies respectively.

Ozone in the stratosphere blocks ultraviolet (UV) radiation from the sun. This is important because UV radiation can be harmful to living organisms, causing skin damage, eye damage, and even cancer. The ozone layer effectively absorbs and prevents most of the UV radiation from reaching the Earth's surface, protecting life on our planet.

To know more about light visit:

https://brainly.com/question/30223248

#SPJ11

The total area of the truck's tires in contact with the road is 0.125 square meters.

To find the total area of the truck's tires in contact with the road, we can use the formula for pressure, which is pressure equals force divided by area. Rearranging this formula to solve for area, we get area equals force divided by pressure.

Using this formula, we can calculate the area of the truck's tires by dividing the weight of the truck by the pressure of the tires:

Area = 25,000 N / 200 kPa

Before we can calculate the area, we need to make sure that our units are consistent. We can convert kilopascals to pascals by multiplying by 1,000, so we get:

Area = 25,000 N / (200,000 Pa)

Simplifying this expression, we get:

Area = 0.125 \(m^{2}\)

Therefore, the total area of the truck's tires in contact with the road is 0.125 square meters.

To know more about kilopascals, refer here:

https://brainly.com/question/30626869#

#SPJ11

Answer:

ammeter

Explanation:

An ammeter is a measuring device used to measure the electric current in a circuit.

Answer:

I think its C

Explanation: