## Physics Homework Help

QUESTION ONE A worker pulls on a rope to properly position a 105 kg net full of fish to be lowered with a winch into a refrigeration hold as shown below. The tension in AC is 300N and @ = 21 degrees

QUESTION ONE

A worker pulls on a rope to properly position a 105 kg net full of fish to be lowered with a winch

into a refrigeration hold as shown below. The tension in AC is 300N and @ = 21 degrees.

Find the force carried in the AB and the angle 0.

QUESTION TWO

(A) Use dimension analysis to derive an equation that shows how Pressure(P) is related to

Force(F), velocity (V) and acceleration (A). [3]

(B) The velocity V of a particle depends upon time ‘t” according to the equation

V=Vab + bt+<

Use Dimension analysis to determine the dimensions of a, b and e. What physical quantity does

each letter represent?

[3]

() A person gardening accelerates a lawnmower of mass 18kg from rest to a speed of 1.2mv/s in

2 seconds. The retarding force F shown in the figure below is 61.3N

## Physics Homework Help

The most important consideration in Power Amplifiers is the collector terminal efficiency of the amplifying component. In practice, among all Amplifier classes, the class A common emitter Amplifie

The most important consideration in Power Amplifiers is the collector terminal efficiency

of the amplifying component. In practice, among all Amplifier classes, the class A common

emitter Amplifier is the least efficient with the highest collector deficiency which results in

a lot of power and battery consumption, that come with high heat dissipation requirements.

Yet, the class A common emitter Power Amplifier when designed correctly, is the most

widely used to handle large signals and delivers more power gain for outdoor hi-fi musical

systems.

## Physics Homework Help

1. A particle with a mass of 3.8 × 10-20 kg is oscillating with simple harmonic motion with a period of 3.1 × 10-5 s and a maximum speed of 2.0 × 103 m/s. Calculate (a) the angular frequency and

1.      A particle with a mass of 3.8 × 10-20 kg is oscillating with simple harmonic motion with a period of 3.1 × 10-5 s and a maximum speed of 2.0 × 103 m/s. Calculate (a) the angular frequency and (b) the maximum displacement of the particle.

2.      A simple harmonic oscillator consists of a block of mass 3.20 kg attached to a spring of spring constant 140 N/m. When t = 2.00 s, the position and velocity of the block are x = 0.137 m and v = 3.040 m/s. (a) What is the amplitude of the oscillations? What were the (b) position and (c) velocity of the block at t = 0 s?

3.      A block of mass M = 6.20 kg, at rest on a horizontal frictionless table, is attached to a rigid support by a spring of constant k = 5570 N/m. A bullet of mass m = 9.60 g and velocity   of magnitude 570 m/s strikes and is embedded in the block (the figure). Assuming the compression of the spring is negligible until the bullet is embedded, determine (a) the speed of the block immediately after the collision and (b) the amplitude of the resulting simple harmonic motion.

4.      In the figure, a physical pendulum consists of a uniform solid disk (of radius R = 55.6 cm) supported in a vertical plane by a pivot located a distance d = 27.7 cm from the center of the disk. The disk is displaced by a small angle and released. What is the period of the resulting simple harmonic motion?

5.      The 3.50 kg cube in the figure has edge lengths d = 5.10 cm and is mounted on an axle through its center. A spring (k = 1300 N/m) connects the cube’s upper corner to a rigid wall. Initially the spring is at its rest length. If the cube is rotated 5.00° and released, what is the period of the resulting SHM?

6.      A block is in SHM on the end of a spring, with position given by x = xmcos (ω t + φ). If φ = 1.41 rad, then at t = 0 what percentage of the total mechanical energy is potential energy?

7.      What is the phase constant for SMH with a(t) given in the figure if the position function x(t) has the form x = xmcos(ωt + φ) and as = 4 m/s2? (note that the answer should be from 0 to 2π)

## Physics Homework Help

Chapter 6: Student Performance Evaluation Read Pages 61-70 1) In the program, the exams are most often made up of multiple-choice questions. Provide at least three methods that can be helpful when ans

Chapter 6: Student Performance Evaluation

1) In the program, the exams are most often made up of multiple-choice questions. Provide at least three methods that can be helpful when answering a multiple choice question.

a. Review Table 6-1.

2) What are the most important concepts when answering a short answer question?

3) How can you effectively answer a prompted essay question?

4) What do you think is the most important factor once you have completed a writing assignment?

Practical Examinations or Performance Assessments; Lab Exams and Skills Checks. (5pts)

· The “How to Guide”!

o Read the example case provided on Pg. 65 in text box.

1) Summarize what you understand from this case and what you are being asked to complete in your “Rx” (treatment) plan by your PT.

· Read the sample case and rubric that your Professors provide you with PRIOR to exam day – you have these examples as study tools!

· Make a treatment plan, practice with a timer.

o Treatments are TIMED, so are exams!

· Practice makes perfect!

o Create scenarios with classmates and mix it up!

§ Like a game of Truth or Dare except this would be “Question or Skill”. Make a set of flashcards, pull a flash card – do it or answer it.

§ Ex: Question; what primary muscles extend the knee? Where to they originate and insert?

§ Ex: Skill; correctly perform the manual muscle test to assess strength of the Quadriceps on B legs.

2) Provide an example & create your own; “question” card & “skills” card – one of each.

· Before the skills check or lab exam day, ASK questions for clarification. USE YOUR EMAIL.

Review Table 6-3 & 6-4. (1pt)

o What is a red flag? Why is it important to always meet these criteria with every practical examination?

Chapter 6: Student Performance Evaluation

1) In the program, the exams are most often made up of multiple-choice questions. Provide at least three methods that can be helpful when answering a multiple choice question.

a. Review Table 6-1.

2) What are the most important concepts when answering a short answer question?

3) How can you effectively answer a prompted essay question?

4) What do you think is the most important factor once you have completed a writing assignment?

Practical Examinations or Performance Assessments; Lab Exams and Skills Checks. (5pts)

· The “How to Guide”!

o Read the example case provided on Pg. 65 in text box.

1) Summarize what you understand from this case and what you are being asked to complete in your “Rx” (treatment) plan by your PT.

· Read the sample case and rubric that your Professors provide you with PRIOR to exam day – you have these examples as study tools!

· Make a treatment plan, practice with a timer.

o Treatments are TIMED, so are exams!

· Practice makes perfect!

o Create scenarios with classmates and mix it up!

§ Like a game of Truth or Dare except this would be “Question or Skill”. Make a set of flashcards, pull a flash card – do it or answer it.

§ Ex: Question; what primary muscles extend the knee? Where to they originate and insert?

§ Ex: Skill; correctly perform the manual muscle test to assess strength of the Quadriceps on B legs.

2) Provide an example & create your own; “question” card & “skills” card – one of each.

· Before the skills check or lab exam day, ASK questions for clarification. USE YOUR EMAIL.

Review Table 6-3 & 6-4. (1pt)

o What is a red flag? Why is it important to always meet these criteria with every practical examination?

## Physics Homework Help

I will Attach 4 things below, 1- The lab manual, you should follow the manual as it is and answer the 8 questions in the manual. 2- Letter on how to write a lab report. 3- Letter on the grading criter

I will Attach 4 things below,

1- The lab manual, you should follow the manual as it is and answer the 8 questions in the manual.

2- Letter on how to write a lab report.

3- Letter on the grading criteria (how the report will be graded).

4 – An example of how the report should be organized and structured.

the lab should not be too long, 3-5 pages is okay.

The report should be done within 24 hours.

## Physics Homework Help

Critical Reflection Paper: Chapter 9 Objective: To critically replicate you’re thoughtful of the readings and your competence to rub on them to your Health care ethics. ASSIGNMENT GUIDELINES (10%): St

Critical Reflection Paper: Chapter 9

Objective: To critically replicate you’re thoughtful of the readings and your competence to rub on them to your Health care ethics.

ASSIGNMENT GUIDELINES (10%):

You need to read the article (in the additional weekly reading resources localize in the Syllabus and also in the Lectures link) assigned for week 1 and develop a 2-3-page paper reflecting your appreciative and ability to apply the readings to your ethics. Each paper must be typewritten with 12-point font and double-spaced with standard margins. Follow APA format 7th Edition, when referring to the selected articles and include a reference page.

EACH PAPER SHOULD INCLUDE THE FOLLOWING:

1. Introduction (25%) Provide a short-lived summary of the undertone (not a description) of each Chapter and articles you read, in your own words.

*What is your response to the content of Chapter 9?

*What did you absorb about Ethics and Safe patient handling? Mention and explain two examples where you can apply them.

* What are the ethics arguments for advocacy on SPHM programs and behaviors?

*For the Professional role you have right now: what are the implications of this chapter for you?

3. Conclusion (15%)

Fleetingly recapitulate your thoughts & postulation to your analysis of the articles and Chapter you read. How did these articles and Chapters impact your thoughts about the principles of ethics?

Evaluation will be based on how clearly you respond to the above, in particular:

a) The clarity with which you critique the articles;

b) The depth, scope, and association of your paper; and,

c) Your conclusions, including a description of the impact of these articles and Chapters on any Health Care Setting.

## Physics Homework Help

1. which of the following produces the least thermal leakage? A. Operable windows B. Residential swinging doors C. Commercial entrance swinging doors D. Non-operable products 2. Paula is working out h

1. which of the following produces the least thermal leakage? A. Operable windows B. Residential swinging doors C. Commercial entrance swinging doors D. Non-operable products

2. Paula is working out heating requirements for a large home with an extensive underground basement. what should she use as her quantity heat loss through below- grade basement walls at a depth of 6-7 feet with no insulation? A. 139.1 B. 12.22 C. 0.069 D. 4.19

3. Brenda has installed a device in which air expands as the temperature increases, causing contacts to open and turn off the heating element.What’s this device called? A.Snap thermostat B. Ventilation switch C. Capillary tube D. Mercury switch

4.Yasir is trying to build an energy-efficient wall and deciding what materials to use. How can he calculate the thermal resistance of the wall? A. It’s the mean layer thermal resistance B. Add the thermal resistance of its layers C. It’s equal to the lease thermally resistant layer. D. Measure the thermal loss

## Physics Homework Help

A golf club has an area of land where golfers can practise their golf shots. Distances are marked out along the land in front of where the golfer stands, to measure the distance travelled by the ball

A golf club has an area of land where golfers can practise their golf shots. Distances are marked out along the land in front of where the golfer stands, to measure the distance travelled by the ball.

Two levels are available. If the lower level is used, the ball lands at the same height from which it was hit. If the higher level is used, this enables the ball to be hit further.

(a)   A ball is given an initial velocity of 33 m s−1 at an angle of 28° to the horizontal.

When hit from the lower level, this ball travels a horizontal distance of 92 m before landing. Use of the higher level increases the horizontal distance travelled before landing by 10 m.

Deduce whether an upper level at a height of 4.5 m would be sufficient to produce this increase. You should ignore air resistance.

## Physics Homework Help

Your athlete is performing a dumbbell biceps curl. During the concentric phase of this exercise, at a constant speed, the athlete realizes that the exercise is easy at the beginning (elbow fully exten

Your athlete is performing a dumbbell biceps curl. During the concentric phase of this exercise, at a constant speed, the athlete realizes that the exercise is easy at the beginning (elbow fully extended), more difficult in the middle (at 90 degrees of elbow flexion) and easy again at the end (at 135 degrees of elbow flexion). Explain why the athlete feels differences in external resistance during the concentric phase. If the client performed the same exercise with more speed, how would the ANGULAR MOMENTUM be affected? Explain by using concepts of biomechanics.

(This kinesiology and it is a biomechanics class)

## Physics Homework Help

Question #1. Go to the Website https://toxtown.nlm.nih.gov/sources-of-exposureThen, on the Sources of Exposure section. There, you would source of exposure. Pick one Sources of Exposure the most inter

Question #1. Go to the Website https://toxtown.nlm.nih.gov/sources-of-exposure

Then, on the Sources of Exposure section. There, you would source of exposure. Pick one Sources of Exposure the most interest to you and click on the link to open the interactive reference. Choose a location and provide a review of the different types of environmental concerns and chemical contaminants. Note: Be sure to explain the source of chemical exposure, as well as any strategies to minimize or eliminate exposure.

Question #2. Go to the Website http://www.epa.gov/superfund/sites/index.htm(Links to an external site.) and click on your region of the country in the map; then, click on your state. Choose one of the Superfund sites on the list and provide a brief summary of the site. Discuss any noted community involvement in the discovery or cleanup of the site. Note: Be sure to include a discussion of remediation strategies, as well as the current stage of cleanup at the site.

HINT: Go this websitehttps://www.epa.gov/superfund/search-superfund-sites-where-you-live

and then select Virginia