Do the Math You Try It
15 Calculate Complete this table relating wave
speed, frequency, and wavelength.
Wave speed Frequency Wavelength
(m/s) (Hz) (m)
20
5
75
15
23
16
625
25
38
20
Lesson 2 Properties of Waves 23

Answer:

A

Explanation:

Current effiency

= 75/147

= 0.5102

New Efficiency

= 120/100 × 0.5102

= 0.6122

Only option A satisfies this efficiency.

The angular velocity of a tornado with a diameter of 62.0 m and wind speed of 410 km/h is approximately 0.0027 revolutions per second.

Angular velocity (ω) is defined as the change in angle per unit of time. In the case of the tornado, we can relate the linear speed (v) at the edge of the tornado to its angular velocity using the formula v = ω * r, where r is the radius.

First, we need to find the radius of the tornado, which is half the diameter: r = 62.0 m / 2 = 31.0 m.

Next, we need to convert the wind speed from km/h to m/s: 410 km/h = 410,000 m/3,600 s ≈ 113.89 m/s.

Now, we can solve for the angular velocity:

ω = v / r = 113.89 m/s / 31.0 m ≈ 3.67 rad/s.

To convert the angular velocity to revolutions per second, we divide by 2π (since one revolution is equivalent to 2π radians):

ω_revs = ω / (2π) ≈ 3.67 rad/s / (2π) ≈ 0.0027 revolutions per second.

Therefore, the angular velocity of the tornado is approximately 0.0027 revolutions per second.

To learn more about, angular velocity:-

brainly.com/question/29557272

#SPJ11

Answer:

The answer choice is C because La Nina Is the cooled part of the sea while El Nino is the warmed part of the sea.

Explanation:

You don't need to thank me... : )

Answer:

15 m/s^2 The first thing to calculate is the difference between the final and initial velocities. So 180 m/s - 120 m/s = 60 m/s So the plane changed velocity by a total of 60 m/s. Now divide that change in velocity by the amount of time taken to cause that change in velocity, giving 60 m/s / 4.0 s = 15.0 m/s^2 Since you only have 2 significaant figures, round the result to 2 significant figures giving 15 m/s^2

Explanation:

Answer:

Explanation:

W = FΔx so filling in:

12 = F(30) so

F = .4N

Answer:

v_f = -7.5 m / s

Explanation:

Let's analyze this exercise a little, two forces that act on a body for different time intervals are indicated, each force creates an impulse and since this is a vector quantity we must add in the form of vectors. The net momentum is

we assume that the direction to the right is positive

             I = I₁ + I₂

             I = F₁ Δt₁ - F₂ Δt₂

             I = 3  1.5 - 4  3

             I = -7.5   N s

now let's use the relationship between momentum and momentum, suppose the object starts from rest (vo = 0)

             I = Δp

             I = m (v_f - v₀)

             v_f = I / m

              v_f = -7.5 / m

to finish the calculation we must assume a mass m = 1 kg

              v_f = -7.5 m / s

the negative sign in the body is moving to the left

Answer: b

Explanation:

Answer:

C.

The More Kinetic Energy being used, the Faster, the Roller Coaster will go.

Explanation:

Hope i helped you :)

Answer:

The average coefficient of rolling friction between the driveway and the skateboard wheels is 0.15.

The average coefficient of rolling friction can be determined by analyzing the given information. We know that the combined mass of the boy and his skateboard is 60 kg and the force of gravity acting on them is 590 N. The force of gravity can be calculated using the formula F = m * g, where F is the force, m is the mass, and g is the acceleration due to gravity (approximately 9.8 m/s²). Thus, we have 590 N = 60 kg * 9.8 m/s².

Since the force of gravity acts in the opposite direction of motion, it is necessary to consider the net force to calculate the coefficient of rolling friction. The net force can be determined using Newton's second law, F = m * a, where F is the net force, m is the mass, and a is the acceleration. In this case, the acceleration is calculated by dividing the change in velocity by the time taken to stop. The initial velocity is 5.5 m/s, and the time taken to stop is 5.0 seconds. Therefore, the acceleration is (0 m/s - 5.5 m/s) / 5.0 s = -1.1 m/s².

Next, we can calculate the net force using F = m * a. The net force is equal to the force of gravity plus the force of friction, which is given by the equation F = μ * N, where μ is the coefficient of rolling friction and N is the normal force. The normal force is equal to the force of gravity, which is 590 N. Therefore, we have μ * 590 N = 60 kg * -1.1 m/s².

Simplifying the equation, we find that μ = (-1.1 m/s²) / (590 N / kg) ≈ -0.0019. However, the coefficient of friction cannot be negative, so we take the absolute value, giving us the average coefficient of rolling friction as approximately 0.0019.

Learn more about rolling friction

brainly.com/question/29658562

#SPJ11

The clay must be 300 m/s fast in other to stop the car.

For the car to stop, The momentum of the car must be equal to the momentum of the clay.

Formula:

Where:

Make v the subject of the equation.

From the question,

Given:

Substitute these values into equation 2

Hence, The clay must be 300 m/s fast in other to stop the car.

Learn more about momentum here: https://brainly.com/question/7973509

Answer:

C: Valence electrons are transferred from a metal to a nonmetal

Explanation:

In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

hope this was helpful :)

The slopes that are formed by angular, ragged stones are more stable because they have the largest angle of repose.

1. In physics, the angle formed by the plane de contact between both bodies and the horizontal so when upper body is just about to slide: the angle whose tangent represents the frictional resistance of the two bodies.

One aspect of inter particulate friction, or the resistance to particle movement, is angle of repose. The USP describes it as the consistent, three-dimensional angle (relative to the horizontal base) acquired by a cone-shaped pile of material created using any of a number of different techniques.

To know more about angle of repose visit:

https://brainly.com/question/23683999

#SPJ4

The force in physics that is given by Newton is the "Newtonian force" or simply "force." The newton (symbol: N) is the unit of measurement for force in the International System of Units (SI).

According to Newton's second law of motion, force is defined as the product of mass and acceleration:

Force (F) = mass (m) * acceleration (a)

The unit newton is defined as the force required to accelerate a mass of one kilogram by one meter per second squared (1 N = 1 kg * 1 m/s²). It represents the amount of force needed to produce an acceleration of one meter per second squared in a mass of one kilogram.

For example, if a force of 10 newtons is applied to an object with a mass of 2 kilograms, it will result in an acceleration of 5 meters per second squared (10 N = 2 kg * 5 m/s²).

Learn more about Newtonian force here:

https://brainly.com/question/30261290

#SPJ11

Answer:

the answer is 69

Explanation:

because i said

An airplane is flying with a velocity of 42 m/s at a standard altitude of 3 km. At a point on the wing, the airflow velocity is 88 m/s. The  pressure at the point on the wing is  \(P = 6.96 * 10^4 N/m^2\).

To calculate the pressure at a point on the wing, we can use Bernoulli's equation, which relates the pressure, velocity, and density of a fluid in steady, incompressible flow.

The equation is as follows:

P + 1/2 * ρ * \(V^2\) = constant

where P is the pressure, ρ is the density of the fluid, and V is the velocity of the fluid.

Given:

\(P_1 = 7.01 * 10^4 N/m^2\) (pressure at standard altitude)

ρ = \(0.909 kg/m^3\) (density of the fluid)

\(V_1 = 42 m/s\) (velocity of the airplane)

\(V_2 = 88 m/s\) (velocity at the point on the wing)

To find the pressure at the point on the wing, we can use Bernoulli's equation for the standard altitude and the point on the wing, and then solve for P:

\(P_1 + 1/2\) * ρ * \(V_1^2\) = \(P + 1/2\)  * ρ * \(V_2^2\)

Substituting the given values:

\(7.01 * 10^4 + 1/2 * 0.909 * 42^2 = P + 1/2 * 0.909 * 88^2\)

Simplifying the equation:

\(7.01 × 10^4 + 1/2 * 0.909 * 1764 = P + 1/2 * 0.909 * 7744\)

7.01 × 10^4 + 804.906 = P + 3526.242

\(P + 4329.148 = 7.01 *10^4\)

\(P = 7.01 * 10^4 - 4329.148\)

\(P = 6.96 * 10^4 N/m^2\)

Therefore, the pressure at the point on the wing is \(P = 6.96 * 10^4 N/m^2\)

Learn more about Bernoulli's equation here:

https://brainly.com/question/15396422

#SPJ11

Answer:

neutron

Explanation:

Answer:

false!!

your welcome!!!!

Angle 32rad turn during that time if the angular acceleration is constant.

What is acceleration?

acceleration, rate at which the velocity changes with time, in terms of both speed and the direction. A point or else it's an  object moving in a straighten line is accelerated if it is  speeds up or slows down. Motion on a circle is the accelerated even if the  speed is constant, because of  the direction is continually changing.

Sol-  In an uniformly accelerated circular motion, the angle traveled by the object is given by- ∆=wf+wo/2×t
Here  wf is the final angular speed.
It is the initial angular speed and t is the time of the motion. Replacing the given values-

∆= 12 rad/s + 4 rad/s /2 (4s)

∆= 32rad .

To know more about accelaration click-

https://brainly.com/question/460763

#SPJ4

Answer:

Period = 0.68 seconds

Explanation:

Given the following data;

Number of oscillation = 22

Time = 14.9 seconds

To find the period;

Method I.

Period = time/number of oscillation

Period = 14.9/22

Period = 0.68 seconds.

Method II.

We would find the frequency of the wave;

Frequency = time/number of oscillation

Frequency = 22/14.9

Frequency = 1.48 Hertz

Next, we find the period;

Period = 1/frequency

Period = 1/1.48

Period = 0.68 seconds

Explanation:

we can use the formula F = ma

hence,

500 = 75a

a = 6.666 m/s² or 6(2/3) m/s²

hope this helps.

A: The extraction and consumption of fossil fuels by humans have had significant environmental, social, and economic impacts. The burning of fossil fuels has resulted in increased greenhouse gas emissions, contributing to global climate change and its associated impacts such as rising sea levels, extreme weather events, and biodiversity loss. Fossil fuel extraction has also led to habitat destruction, air and water pollution, and negative health impacts on nearby communities. In addition, the use of fossil fuels has had significant economic and political implications, as countries rely on these finite resources for their energy needs.

B: Understanding the cause and effect relationships between humans and the removal of fossil fuels can help us make predictions about the future of these resources. By analyzing historical patterns of fossil fuel extraction and consumption, we can make projections about future availability and production. Additionally, by considering the environmental and social impacts of fossil fuels, we can anticipate the potential consequences of continued reliance on these resources, and the need for alternative energy sources. Such understanding can inform policy decisions, technological advancements, and societal behaviors that can mitigate negative impacts and ensure a sustainable energy future.

Given below  are some things in an individual's house that can be utilised daily that relates to grade 10 optics

1. Mirrors: It is applied every day to check the individual appearance. Mirrors are created by glass with a reflective coating on the back. It reflects light and creates an image of the object in front of them. Mirrors could be plane, concave or convex lens.

2. Eyeglasses: It depends on the individual that wears eyeglasses, they  apply them every day to see clearly. Eyeglasses are used  to correct vision problems. Lenses could be concave or convex.

3. Telescopes: Depends if the individual has telescope at home, they apply it to observe distant objects such as stars and planets. Telescopes applied  to collect and focus light.

4. Cameras: Cameras utilizes lenses to focus light onto a sensor or film. The aperture helps to controls the amount of light that enters the camera. The shutter speed controls how long the sensor or film is exposed to light.
To learn more about convex lens
https://brainly.com/question/28039799
#SPJ1

Answer:

true

Explanation:

The object will always accelerate if it has an unbalanced force acting on it in that direction

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

According to snells law :

\(\qquad \sf  \dashrightarrow \: n_1 ×sin \: i = n_2 \times sin \:r \)

[ n corresponds to the refracting index of a medium ]

now, as we know :

Now, let's proceed according to the formula ~

\(\qquad \sf  \dashrightarrow \: 1 \times \sin(40 \degree) = 1.33 \times \sin(r) \)

\(\qquad \sf  \dashrightarrow \: \sin(r) = \cfrac{1 \times sin \: r}{1.33} \)

[ sin 40° = 0.6428 ]

\(\qquad \sf  \dashrightarrow \: \sin(r) = \cfrac{0.6428}{1.33} \)

\(\qquad \sf  \dashrightarrow \: \sin(r) \approx \cfrac{1}{2} \)

\(\qquad \sf  \dashrightarrow \: r \approx 30 \degree\)

Hence, the angle of refraction is equal to 30°

In conclusion, developing and maintaining operational and process documentation for the HPC environment involves identifying services, documenting procedures and workflows, providing examples, and regularly updating the documentation. This ensures that the HPC environment continues to support complex campus research requirements effectively.

To develop and maintain operational and process documentation for the HPC (High Performance Computing) environment, there are several steps you can follow:
1. Identify the diverse set of services required: Understand the specific research requirements of the campus and determine the different services that the HPC environment needs to support.
2. Document operational procedures: Create step-by-step instructions for tasks such as system setup, software installation, user access management, and data backup. These documents should provide clear guidelines for administrators to follow.
3. Document process workflows: Define the processes involved in running specific research tasks on the HPC environment. This could include data preprocessing, job submission, monitoring, and result analysis. Documenting these workflows helps ensure consistency and reproducibility.
4. Provide examples and illustrations: Include examples and diagrams to make the documentation more understandable. For instance, you could include screenshots of the user interface, sample scripts, or flowcharts to illustrate the workflows.
5. Update and review regularly: As the HPC environment evolves, ensure that the documentation remains up-to-date. Regularly review and revise the content to reflect any changes in hardware, software, or research requirements.
In conclusion, developing and maintaining operational and process documentation for the HPC environment involves identifying services, documenting procedures and workflows, providing examples, and regularly updating the documentation. This ensures that the HPC environment continues to support complex campus research requirements effectively.

To know more about documenting visit:

https://brainly.com/question/33561021

#SPJ11

Poor communication

This is an example of a conflict based on poor communication. Because of the reason is that in customer service a person should have skills to communicate in a good manner. It is important because if the person has this skill that he can communicate with others best.

Then he can impress the customer and realize customer about the qualities of their product. In every kind of business, communication skills play major role. Therefore, both john and Henry are confused as their priorities should be on focus to improve their communication skills.

When there is a disconnect between what is said and what is heard, poor communication frequently results. In other words, the individual to whom the communication is being directed misinterprets what you are trying to convey. There is no longer mutual understanding.

Learn more about Poor communication here:

https://brainly.com/question/26083560

#SPJ4

Answer:

60 km/h

Explanation:

Simplify the speed:

120÷2=60

Hence, the average speed is 60 km/h.

Answer:

Kinetic energy is the energy of an object or a system's particles in motion. It is defined as the work needed to accelerate a body of a given mass from one velocity to another. Kinetic energy is the energy associated with motion, and can be calculated by multiplying half the mass of the object by the square of its velocity. Kinetic energy can be converted into other forms of energy, such as heat, sound, and light.

Answer:

please let me know when you find it

Explanation:

i have the same question and cant find it

Answer:

It’s 5m/s^2

Explanation: