I need help ASAPP
Thanks+ BRAINLIST only for correct answer for these questions.

Which among the following forms of electromagnetic waves has the highest frequency range?
O Microwave
O Radio waves
O X-ray
O Ultraviolet

Radio waves carry information from a broadcasting station to your radio or television.
-visible light
- sound
-X -ray
- gamma ray

Answer:

Approximately \(1.5\; {\rm s}\).

(Assumptions: \(g = 9.81\; {\rm m\cdot s^{-2}}\); air resistance on the volleyball is negligible.)

Explanation:

Under the assumptions, acceleration of the volleyball would be \(a = (-g) = (-9.81)\; {\rm m\cdot s^{-2}}\) during the entire flight. (This value is negative since the ball is accelerating downwards- toward the ground.)

By the time the volleyball hits the ground, the volleyball would be at a position \(2.0\; {\rm m}\) below where it was launched. In other words, the (vertical) displacement of the volleyball during the entire flight would be \(x = (-2.0)\; {\rm m}\). (Negative since the ball is below where it was launched.)

Apply the SUVAT equation \((v^{2} - u^{2}) = 2\, a\, x\) to find the velocity of the volleyball right before hitting the ground. In this equation:

Rearrange this equation and solve for the velocity right before landing, \(v\). Note that because \(v\!\) is raised to the power of \(2\) in \((v^{2} - u^{2}) = 2\, a\, x\), both \(v = \sqrt{u^{2} + 2\, a\, x}\) and \(v = -\sqrt{u^{2} + 2\, a\, x}\) could satisfy this equation. However, \(v\!\!\) needs to be negative since the volleyball would be travelling downwards before reaching the ground.

Therefore, right before reaching the ground, velocity of the volleyball would be:

\(\begin{aligned} v &= -\sqrt{u^{2} + 2\, a\, x \\ &= -\sqrt{(6.0)^{2} + 2\, (-9.81)\, (-2.0)} \; {\rm m\cdot s^{-1}} \\ &\approx (-8.67)\; {\rm m\cdot s^{-1}}\end{aligned}\).

In other words, velocity of this volleyball has changed from \(u = 6.0\; {\rm m\cdot s^{-1}}\) (upwards) to \(v \approx (-8.67)\; {\rm m\cdot s^{-1}}\) (downwards) during this flight. Divide the change in the velocity \((v - u)\) by the rate of change in velocity \(a = (-9.81)\; {\rm m \cdot s^{-2}}\) to find the duration of this flight:

\(\begin{aligned}t &= \frac{v - u}{a} \\ &\approx \frac{(-8.67) - 6.0}{(-9.81)}\; {\rm s} \\ &\approx 1.5\; {\rm s}\end{aligned}\).

Answer: some may argue that while teacher’s only provide service to a single classroom, superstar athletes are entertaining fans all around the world, enticing people with a feeling of relaxation and excitement. Obviously, what these individuals must not be aware of is the most important man in our nation, the president, who makes critical decisions that affect the entire world every day, only makes $400,000 a year. While President Obama is hard at work reviving the economy, the unproven rookie in the MLB is earning way over that figure. Furthermore, police officers, firefighters, and doctors save lives while risking their own for a fraction of what sports stars make. People in the military leave their families at home to defend and protect the country knowing they may never return. It's truly a pity that none of these true heroes are given the same recognition by society as athletes such as Brett Favre or Michael Jordan are given. While I do understand that making it into the pros is not an easy thing to do, and that it takes a tremendous number of hours of hard work and dedication every day to earn a job in professional sports, these people do nothing more than entertain the general public.

Explanation:

Answer:

Wouldn't it be great to make nearly $111 million a year simply to play a game? Tiger Woods, along with many other professional athletes, certainly think so. But do these athletes really deserve all that money?

In my mind, absolutely not. Professional athletes are making too much money in a society where salaries and wages are traditionally based on the value of one's work. In today's society, one should be paid according to the job’s economic importance and their value to society.

Teaching is one of the most economically important occupations because our future economy relies on the education of its youth, yet teachers are paid astronomically less than the average professional athlete is. In fact, each basket Kobe Bryant scores earns him equivalent to the average classroom teacher’s yearly salary.

However, some may argue that while teacher’s only provide service to a single classroom, superstar athletes are entertaining fans all around the world, enticing people with a feeling of relaxation and excitement.

Obviously, what these individuals must not be aware of is the most important man in our nation, the president, who makes critical decisions that affect the entire world every day, only makes $400,000 a year. While President Obama is hard at work reviving the economy, the unproven rookie in the MLB is earning way over that figure.

Furthermore, police officers, firefighters, and doctors save lives while risking their own for a fraction of what sports stars make. People in the military leave their families at home to defend and protect the country knowing they may never return. It's truly a pity that none of these true heroes are given the same recognition by society as athletes such as Brett Favre or Michael Jordan are given.

While I do understand that making it into the pros is not an easy thing to do, and that it takes a tremendous number of hours of hard work and dedication every day to earn a job in professional sports, these people do nothing more than entertain the general public.

Moreover, in my mind, if these athletes want to continue to be rewarded with the fame and fortune that is unfairly bestowed upon them, they must prove to the world that they are going to be positive role models for future athletes, and those who admire them.

Explanation:

found if off some website lol hope it helps! <3

An axon requires three pieces of information to calculate the current associated with an NCV pulse: potential, resistance per unit length, and length. So, the correct answer is option D.

Potential is the difference in voltage between two places, while resistance per unit length is the amount of resistance present along an axon's length.

The voltage difference is multiplied by the axon resistance to determine the current. By dividing the resistance per unit length by the axon's length, the resistance of the axon is determined.

We can determine the current associated with an NCV pulse by knowing the potential, resistance per unit length, and length of an axon.

Complete Question:

What information about an axon is required to calculate the current associated with an NCV pulse?

A. Conductivity, resistivity, and length

B. Potential, conductivity, and radius

C. Potential, resistivity, and radius

D. Potential, resistance per unit length, and length

To learn more about axon visit:

https://brainly.com/question/25818094

#SPJ4

Conductors are materials that allow electrical charges to flow through them easily, such as metals, while insulators are materials that resist the flow of electrical charges and do not conduct electricity, such as rubber or plastic.

Conductors and insulators are two types of materials with very different electrical properties. Conductors allow electricity to flow freely through them, while insulators prevent the flow of electricity. Conductors have a low resistance to electrical flow, while insulators have a high resistance.

Examples of conductors include metals like copper and aluminum, as well as water and human tissue. Examples of insulators include rubber, plastic, glass, and air. Conductors are commonly used in electrical wiring and circuits, while insulators are used to protect people and equipment from electric shocks and to prevent electrical interference.

To know more about the conductors, here

brainly.com/question/18084972

#SPJ4

Answer:

x=-2 and y=3

Explanation:

Isolate y and then x to get: y=13+5(-2)

Simplify to get y=3 then plug it back in to get x=-2

We can check, 9+ (-4)=5 hope this helps

An object less dense than water will float, and the amount of water displaced will equal its volume and mass.

Archimedes' principle states that the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object.

Therefore, if an object is less dense than water, it will float, and the amount of water displaced will equal its volume and mass.

To determine the density of the object, the volume of water displaced is measured and the mass of the object is divided by this volume.

This will give the density of the object in comparison to the density of water.

This principle is used in many applications, such as in the design of ships and submarines, as well as in determining the purity of precious metals.

For more such questions on object, click on:

https://brainly.com/question/28308143

#SPJ11

The decibel level (dB) of a sound is given by the equation dB = 10 * log10(I/I0), where I is the sound's intensity, and I0 corresponds to the intensity of the weakest sound that can be detected by the human ear. A sound of 140 decibels produces pain in the average human ear.

To find out how many times greater the intensity I of a sound must be to reach a decibel level of 140, follow these steps:
1. Set the decibel level to 140 in the equation: 140 = 10 * log10(I/I0).
2. Divide both sides by 10: 14 = log10(I/I0).
3. Apply the antilog (10^x) to both sides: 10^14 = I/I0.
4. Rearrange the equation to find I: I = 10^14 * I0.
The intensity I of a sound must be 10^14 times greater than I0, the intensity of the weakest sound detectable by the human ear, to reach a decibel level of 140.

For more information on decibel level see:

https://brainly.com/question/29383422

#SPJ11

When a material in liquid state is given energy, it changes its phase from liquid to vapor; the energy absorbed in this process is called heat of vaporization. The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol. The vaporization is the opposite process of condensation.

hope this helped <3

Answer:

v = 17.30 m / s

Explanation:

For this exercise we will use Newton's second law

at the bottom of the loop and stopped

           ∑ F = 0

           N-W = 0

           N = W

            W = 770 N

the mass of the body is

            W = mg

             m = W / g

            m = 770 / 9.8

            m = 78.6 kg

on top of the loop and moving

           ∑ F = m a

           N + W = m a

note that the three vectors go in the same vertical direction down

the centripetal acceleration is

           a = v² / r

we substitute

           N + W = m v² / r

           v = \(\sqrt{(N+W) \frac{r}{m} }\)

let's calculate

          v = \(\sqrt{ (350+770) \frac{21}{78.6} }\)

          v = 17.30 m / s

Answer is the hind brain

The brainstem is located under the forebrain and midbrain. Therefore option D is correct.

The brainstem is located under both the forebrain and midbrain. It is a vital component of the central nervous system that connects the brain to the spinal cord and controls many essential functions such as breathing, heart rate, and digestion.

It consists of three main regions: the medulla oblongata, pons, and midbrain. The forebrain, midbrain, and hindbrain together constitute the major divisions of the brain.

The hindbrain is positioned below the midbrain and includes structures like the cerebellum, pons, and medulla oblongata.

The brainstem, specifically its lower regions, is responsible for relaying information between the brain and the rest of the body while regulating critical bodily functions.

Therefore option D is correct.

Know more about brainstem:

https://brainly.com/question/5351789

#SPJ7

40cm³ is  volume of a metal block measures 10cm×2cm×2cm and 5 blocks have the same total volume.

volume=l×b×h

volume=10cm×2cm×2cm= 40cm³

volume=l×b×h

volume= 2cm×2cm×2cm=8cm³

blocks have the same total volume= 40cm³/8cm³= 5

The space occupied inside an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity. Finding an object's volume can help us calculate the quantity needed to fill it, such as the volume of water needed to fill a bottle, aquarium, or water tank.

A sphere is the most basic and typical form of a three-dimensional shape. We see spheres on a regular basis in the form of balls, globes, ornamental lights, oranges, etc.

To know more about  volume  visit : https://brainly.com/question/2454734

#SPJ9

Therefore, a force of 196.2 N must be exerted to push the 100 kg ball up the 50 m ramp to a height of 10 m.

To determine the force needed to push the ball up the ramp, we need to consider the work-energy principle. The work done by the force pushing the ball up the ramp must be equal to the change in the ball's potential energy.

The potential energy gained by the ball is given by:

ΔPE = mgh

here m is the mass of the ball, g is the acceleration due to gravity, and h is the height gained by the ball.

ΔPE = (100 kg)(9.81 m/s^2)(10 m - 0 m) = 9810 J

The work done by the force pushing the ball up the ramp is given by:

W = Fd

here F is the force exerted on the ball, and d is the distance over which the force is applied (in this case, the length of the ramp, 50 m).

The force required to push the ball up the ramp is then:

F = W/d = ΔPE/d = (9810 J)/(50 m) = 196.2 N

Learn more about force Visit: brainly.com/question/25239010

#SPJ4

A force of 196.2 N must be exerted to push the 100 kg ball up the 50 m ramp to a height of 10 m.

To calculate the force needed to push a 100 kg ball up a 50 m ramp to a height of 10 m, we will use the concept of work-energy theorem and the equation for work done against gravity. The work-energy theorem states that the work done on an object is equal to the change in its potential energy.

First, let's determine the change in potential energy (ΔPE). The potential energy is given by the equation

PE = m * g * h

where m is the mass, g is the gravitational acceleration (9.81 m/s²), and h is the height.

In this case,

m = 100 kg and h = 10 m.

Thus,

ΔPE = 100 kg * 9.81 m/s² * 10 m

= 9810 J (Joules).

Now, let's calculate the work done (W) to push the ball up the ramp. Work is defined as the force (F) applied to an object multiplied by the distance (d) over which the force is applied. In this case, the distance is the length of the ramp (50 m).

The equation for work is

W = F * d.

Since the work done equals the change in potential energy, we can write the equation as

9810 J = F * 50 m.

To solve for the force (F), we can divide both sides of the equation by 50 m:

F = 9810 J / 50 m

= 196.2 N (Newtons).

Therefore, a force of 196.2 N must be exerted to push the 100 kg ball up the 50 m ramp to a height of 10 m.

To know more about force, refer to the link below:

https://brainly.com/question/14642565#

#SPJ11

Based on the forces acting on the axes, the resultant moments will be (345, 400, 600 N·m)

= F₃ x 3

= -115 x 3

= -345 N·m

= F₁ x 2

= -200 x 2

= -400 N·m

= F₄ x 2

= -300 x 2

= - 600 N·m

In conclusion, the resultant moment about x, y, and z axes is (345, 400, 600 N·m)

Find out more on resultant moments at https://brainly.com/question/6278006.

Explanation

a uniformly accelerated motion is the one in which the acceleration of the particle throughout the motion is uniform,to fidn the time take we can use the formula:

Step 1

a)Let

b) now, replace

therefore, the answer is 2 seconds

I

The type of radioactivity that has a negative charge is beta rays.

Alpha rays consist of particles which have two protons and two neutrons identical to a positively charged helium nucleus. They get attracted towards the negatively charged plate as they possess a charge of +2. They have very high ionization power.

Beta radiation has a negative charge because it contains particles similar to an electron. It contains the same mass as an electron, and the mass is lower than proton and neutron masses. Also, each particle contains a single negative charge, making the radiation negatively charged.

To know more about radioactivity visit:-

https://brainly.com/question/14825851

#SPJ1

Answer: A surface wave is a wave that moves along the interface of two different materials, like air and water.

Answer:

5.0 kg

Explanation:

use the equation; (m1v1i) + (m2v2i) = (m1v1f) + (m2v2f)

To calculate the value of σ using Equation 5.1, we need the following information:

C: Cavitation coefficient

P" (P double prime): Pressure at the vena contracta (location of lowest pressure in the orifice)

Pug: Upstream gauge pressure

v: Velocity of the fluid at the vena contracta

Given:

C = -0.10

P" = 620 kPa

Pug = -84 kPa (negative sign indicates it's below atmospheric pressure)

v = 2.69 m/s

The equation for σ is as follows:

σ = (P" - Pug) / (0.5 * ρ * v^2)

Where:

ρ is the density of the fluid.

Now, we need the density of the fluid to complete the calculation. Since the density is not provided in the information given, I am unable to calculate the value of σ accurately. Please provide the density of the fluid, and I will be able to calculate σ for you.

To know more about Cavitation coefficient refer here

https://brainly.com/question/16879117#

#SPJ11

The velocity of the red cart after the collision is 2 m/s

From the law of conservation of momentum, initial momentum of system = final momentum of system.

m₁v₁ + m₂v₂ = m₁v₃ + m₂v₄ where m₁ = mass of red cart = 4 kg, v₁ = velocity of red cart before collision = + 4 m/s, v₃ = velocity of red cart after collision, m₂ = mass of blue cart = 1 kg, v₂ = velocity of blue cart before collision = 0 m/s (since it is initially at rest) and v₄ = velocity of blue cart after collision = + 8 m/s.

Substituting the values of the variables into the equation, we have,

m₁v₁ + m₂v₂ = m₁v₃ + m₂v₄

4 kg × 4 m/s + 1 kg × 0 m/s = 4v₃ + 1 kg × 8 m/s

16 kgm/s + 0 kgm/s =  4v₃ + 8 kgm/s

16 kgm/s =  4v₃ + 8 kgm/s

16 kgm/s - 8 kgm/s =  (4 kg)v₃

(4 kg)v₃ = 8 kgm/s

Divide both sides by 4 kg, we have

v₃ = 8 kgm/s ÷ 4 kg

v₃ = 2 m/s

The velocity of the red cart after the collision is 2 m/s.

Learn more about conservation of momentum here:

https://brainly.com/question/7538238

Answer:

When a proton is placed directly in the path of the proton cannon, it will experience a strong electromagnetic force. The proton cannon emits a beam of protons at high energy and velocity. When the proton in the path of the cannon interacts with the beam, there will be a collision between the two protons.

During the collision, the protons may undergo a process called scattering, where they change direction and momentum. The exact outcome of the collision depends on the energy and angle of the incoming proton, as well as the properties of the target proton. It is possible that the protons may scatter off each other, transferring energy and momentum in the process.

In some cases, the collision may result in the absorption of the incoming proton by the target proton. This can lead to the formation of a more massive particle or the emission of other particles. The specifics of the interaction will depend on the energy and conditions of the proton cannon and the characteristics of the protons involved.

Overall, placing a proton directly in the path of a proton cannon will result in a collision and potential scattering or absorption of the protons, causing changes in their momentum and possibly leading to the creation of other particles.

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

A lunar eclipse occurs when earth's shadow fall on moon.

To know more about eclipse visit:

https://brainly.com/question/9242798

#SPJ4

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 minimum diameter of a steel wire if it is to support a mass of 80 kg is 1.41 * 10⁻³ m.

The minimum diameter, d of the steel wire can be calculated thus:

α = 5.0 × 10⁸ Pa.

mass, m = 80 kg

Force = 80 * 98 = 784 N

Area = force/α

area = 784/5.0 × 10⁸

area = 1.57 * 10⁻⁶

Area = πd²/4

d = √(4 * area/π)

d = √(4 *  1.57 * 10⁻⁶ * 7/22)

diameter = 1.41 * 10⁻³ m

Learn more about elastic limit at: https://brainly.com/question/18793028

#SPJ1

Note that the complete question is given below:

What is the minimum diameter of a steel wire if it is to support a mass of 80 kg? The elastic limit of steel is 5.0 × 10⁸ Pa.

Answer:

Mass of the rock is 12.25kg

Explanation:

Kinetic energy can be defined as the energy possessed by an object as a result of its motion. Simply stated, it is the energy due to motion.

Mathematically, it is given by;

\(K = \frac{1}{2}mv^{2}\)

Given the following data;

Velocity, V = 1.4m/s

Kinetic energy, K = 12J

Mass, m = ?

The formula for calculating the kinetic energy of an object is;

\(K = \frac{1}{2}mv^{2}\)

Substituting into the equation, we have;

12 = ½*m*(1.4)²

We cross-multiply;

24 = 1. 96m

m = 24/1.96

m = 12.25kg.

Hence, the mass of the rock is 12.25kg.

Answer:

2,666.67cm^3

Explanation:

All we need to do in this problem is divide the mass of the wooden block to the oil's density.

2000/0.750 ≈ 2,666.67cm^3

Best of Luck!

Final velocity = 57.8m/s

What is acceleration?

In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object

Acceleration = (Initial velocity - Final velocity) /time

Given,

time = 3.4s

Acceleration = 17 m/s^2

17 = (0-v)/3.4

final velocity = 17 X 3.4 = 57.8 m/s

To learn more about acceleration the link is given below:

https://brainly.com/question/29425868?

#SPJ4

Answer: and apple on the tree is gravitational and potential

fully charged camera battery is electric/ potential energy a man jogging is motion energy and a stove burner that is turned on is radiation energy

Explanation:

hope this helps

Answer:

If the trains are moving at the same speed, the answer is A.

The clock in train B appears to be the same width and to run at the same rate. Option A is correct.

It is given that an observer on train A, which is moving close to the speed of light, views a clock in train B, which is stationary at the train station.

It is required to find how an observer would observe a clock in train B.

If a person is in a moving train, then his body is also in a state of motion with respect to the train at the same rate. When the observer observes any object that is at rest then it does not change the shape or size of an object. Also an object appears to run a=t the same rate due to the relative velocity attain by the observer's train.

Relative Motion is

Relative motion is the speed or the motion of an object with respect to the moving or the stationary object.

Thus the clock in train B appears to be the same width and to run at the same rate.

Learn more about relative motion here:

https://brainly.com/question/15836528

#SPJ5

We will have that the magnitude of the force required is:

So, it will need at least 98 N to keep it from moving downwards.

The expression for the terminal speed, \(V_{term\), can be given by:

\(V_{term\) = sqrt((2 * g * (rhor - rhom)) / (b * rhor))

The expression for the terminal speed (\(V_{term\)) can be derived by considering the forces acting on the object at terminal velocity.

At this point, the gravitational force (mg) and the drag force (F_drag) balance each other out.

The drag force is proportional to the velocity (v) of the object,

and its equation can be written as F_drag = -b * v, where b is the drag coefficient.

By equating the gravitational force and drag force,

we obtain b * \(V_{term\) = m * g.

Considering the object's mass (m) as the product of its density (ρ) and volume (V), and simplifying the equation,

we arrive at \(V_{term\) = sqrt((2 * g * (rhor - rhom)) / (b * rhor)),

where rhor is the density of the medium and rhom is the object's density.

For more such questions on speed, click on:

https://brainly.com/question/13943409

#SPJ11

Terminal speed refers to the maximum velocity achieved by an object when the forces acting on it balance out. In this case, we can use the formula for terminal speed to find an expression in terms of the given variables.

The formula for terminal speed is: v = \(\sqrt{((2mg) / (rhor * A * C))}\), Where v is the terminal speed, m is the mass of the object, g is the acceleration due to gravity, rhor is the density of the surrounding medium, A is the cross-sectional area of the object, and C is the drag coefficient. In this case, we can assume that the object is a sphere with density rhom. Therefore, the mass of the object can be expressed as: m = (4/3) * pi * \(r^{3}\) * rhom. where r is the radius of the sphere. The cross-sectional area of the sphere can be expressed as: A = pi * \(r^{2}\). The drag coefficient can be expressed as: C = 6 * pi * b. where b is a constant that depends on the shape of the object and the properties of the surrounding medium. Substituting these expressions into the formula for terminal speed, we get: v = \(\sqrt{((8/3) * (rhom - rhor) * g * r^{3}) / b}\). Therefore, the expression for terminal speed in terms of the given variables is: v = \(\sqrt{((8/3) * (rhom - rhor) * g * r^{3}) / (6 * pi * b)}\)

In summary, we can use the formula for terminal speed to find an expression in terms of the given variables. The expression for terminal speed can be derived by substituting the expressions for mass, cross-sectional area, and drag coefficient into the formula for terminal speed. The resulting expression involves the variables b, rhor, rhom, and the constant g. The formula can be used to calculate the terminal speed of a sphere in a given medium.

Learn more about Terminal speed here :

https://brainly.com/question/31644262

#SPJ11