PHY 111 Lab 5

1–2. Figure C1.2 shows a mechanism that is typical in the tank of a water closet. Note that flapper C is hollow and filled with trapped air. Carefully examine the configuration of the components in the mechanism. Then answer the following leading questions to gain insight into the operation of the mechanism. 5. What effect will cause item D to move? 6. As item D is moved in a counterclockwise direction, what happens to item F? 7. What does item F control? 8. What is the overall operation of these mechanisms? 9. Why is there a need for this mechanism and a need to store water in this tank

PHYS X PHYS X 印 PHYS X PHYS X POTPHYS X PHYS X E PHYS X E PHYS top/semester2/physics%20for%20engineers/PHYS220_CH15_Lecture%20Notes_Problems%2015 19,15.29 S (D Page view A Read aloud V Draw Problem-15-19: page-475 A 0.500-kg object attached to a spring with a force constant of 8.00 N/m vibrates in simple harmonic motion with an amplitude of 10.0 cm. Calculate the maximum value of its (a) speed, and acceleration. (b) the speed and the acceleration when the object is 6.00 em from the equilibrium position, and (c) the time interval required for the object to move from.r50 to r5 8.O0 cm. Solution:

PROBLEM SET # 7: THE EQUILIBRIUM MODEL On the space provided, present correct and organized solutions to the following answered problems. Box the final answers. Detach each page neatly and submit to your instructor. 1. A Christmas light hangs on a series of strings as shown in the figure below. The tension on string a, Ta, is 0.48 N. %3D 42° b. J a C 30° 25° 비 m (a) What is the tension on string b? (Ans: 0.22 N) (b) What is the tension on string c? (Ans: 0.35 N) (c) What is the tension on string d? (Ans: 0.37 N) (d) What is the mass of the Christmas light, m, in grams? (Ans: 34 grams)

Which of the following statement is correct? Select one: O a. point functions are inexact Differential. O b. Point functions are not the properties of the system. O c. The Point Function depends on the path followed during a process as well as the end states. O d. Examples for points functions are temperature, pressure, density.

is a mass hanging by a spring under the influence of gravity. The force due to gravity, Fg, is acting in the negative-y direction. The dynamic variable is y. On the left, the system is shown without spring deflection. On the right, at the beginning of an experiment, the mass is pushed upward (positive-y direction) by an amount y₁. The gravitational constant g, is 9.81 m/s². DO C.D Frontly у Your tasks: No Deflection m k Fg = mg Initial Condition y m k Write down an expression for the total energy If as the sum Write down an expression for the total energy H Fg = mg Figure 3: System schematic for Problem 4. Yi & X Write down, in terms of the variables given, the total potential energy stored in the system when it is held in the initial condition, relative to the system with no deflection. as the sum of potential and kinetic energy in terms of y, y, yi C After the system is released, it will start to move. Write down an expression for the kinetic energy of the system, T, in terms of…

In a linear spring finite element model, as per the finite element model’s sign convention, which one of the following statements is true?   Select one: a. If Fe1 is negative then the spring is under compression b. If Fe2 is negative then the spring is under tension c. If Fe1 is positive then the spring is under tension d. If Fe2 is positive then the spring is under tension

Directions: Identify whether each statement is True or False. 1.When Dealing with liquids and gases, we ordinarily speak of stresses, for solids we speak pressures True False   2 .Open system is defined when a particular quantity of matter is under study. This system always contains the same matter. There can be no transfer of mass across it`s boundary True False   3. Thermodynamic properties can be placed in two general classes control volume and intensive True Flase 4. Triple point of water- is the condition of water temperature and pressure under which gaseous liquid and solid phases cannot exist in equilibrium True False   5. Intensive properties are additive in the sense previously considered. Their values are dependent of the size of extent of system and may vary from place to place within the system at any moment. Specific volume pressure. and temperature are important intensive properties True False

In a linear spring finite element model, as per the finite element model’s sign convention, which one of the following statements is true?   Select one: a. If Fe1 is positive then the spring is under tension b. If Fe2 is negative then the spring is under tension c. If Fe2 is positive then the spring is under compression d. If Fe1 is positive then the spring is under compression Clear my choice

ue 9:E0 • ZAIN IQ lI. ۱۳ شباط تحرير QI: Find the result of F4 Force acting on a body as shown below: 400 N 300 N 60 30 F;= 150 N F,- 260 N

Draw and discuss the FBD for the following system. • Label all forces and directions. How many unknowns are there? (Remember, an unknown does not have to be a force. It can also be a dimension, angle, etc.) • How many equilibrium equations can you create? • Is there enough information to solve for the unknowns? Explain. ● Draw pulley A as your particle. B 20° A 100 N F

QUESTION 7 A model tow-tank test is conducted on a bare hull model at the model design speed in calm water. Determine the effective horsepower (hp) for the ship, including appendage and air resistances. The following parameters apply to the ship and model: Ship 1,100 Model Length (ft) Hull Wetted Surface Area (ft2) Speed (knots) 30 250,000 15 Freshwater Water Seawater 50°F 70°F Projected Transverse Area (ft²) Cair 7,500 0.875 Appendage Resistance (% of bare hull) 10% Hull Resistance (Ibf) 20

is a mass hanging by a spring under the influence of gravity. The force due to gravity, Fg, is acting in the negative-y direction. The dynamic variable is y. On the left, the system is shown without spring deflection. On the right, at the beginning of an experiment, the mass is pushed upward (positive-y direction) by an amount y₁. The gravitational constant g, is 9.81 m/s². No Deflection m k Fg = mg Initial Condition m k Fg = mg Figure 3: System schematic for Problem 4. Yi 8 Your tasks: A Write down, in terms of the variables given, the total potential energy stored in the system when it is held in the initial condition, relative to the system with no deflection. B Write down an expression for the total energy H as the sum of potential and kinetic energy in terms of y, y, yi and element parameters. Will H change as the mass moves? C After the system is released, it will start to move. Write down an expression for the kinetic energy of the system, T, in terms of position, y, the initial…

True or false Statics mechanics allows us to represent distributed loads as a concentrated force located at the centroid of the distributed load.

T'sec In helical spring experiment a student plotted the graph of T2 versus the oscillating mass (M), and Used the slope to find the spring :constant, the value of k is 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 O. O a. 13.3 N/m O b. 6.8N/m O c. 5 N/m O d. 3.3 N/m O e. 24 N/m 5 10 15 20 25 30 35 40 45 50 55 60 65 M (9) 70 75 80

Q1: Answer the questions (for three only) 1- What is the difference between (Statics and Dynamics)? give examples. 2- We can say that a beam is in equilibrium, if all forces and moments applied to it are equal zero. (Choose (True or False) and if it is false correct it). 3- Erratic motion of a particle occurs when the motion parameters is not continuous. (Choose (True or False) and if it is false correct it). 4- Determine your mass in kilograms, then find your weight in Newtons. After that find your weight in pound and calculate the corresponding mass in slugs. (12 Marks)

Table Q2(a): Parameter Student with ODD last digits of matric number (AD20xxxZ) Z = 1,3,5,7,9 Student with EVEN last digits of matric number (AD20xxxZ) Z = 0,2,4,6,8 Parameter X 1000 N/m 1200 N/m Y 0.9 m 1.2 m Z 0.6 m 0.8 m (i) At the point of contra-flexure, the value of bending moment is a) Zero b) Maximum c) Can't be determined d) Minimum (ii) its sign. positive/negative bending moments occur where shear force changes a) Minimum b) Zero c) Maximum d) Remains same (iii) The shear force in a beam subjected to pure positive bending a) Positive b) Negative c) Zero d) Cannot determine (iv) SI units of shear force is a) kN/m b) kN-m c) kN d) m/N (v) a) Hinged b) Simple c) Fixed d) Joint support develops support moment.

Please don't provide handwritten solution ....  Statics: 3D Equilibrium of Bodies

% difference between the directions of the sum of the forces due to the string 1 and 2 and the force due to string 3 = % String Number Mass Attached (kg) Force Exerted (N)  Direction (°) 1 .25 2.45 30° 2 .25 2.45 120° 3 .35 3.43 255°

= Knowledge Check: String in a Circle Please answer the following question(s): 1. Object of mass m tied at the end of a string of length R whirled around a circle. The tension in the string is T. How much work does T do on the object? V % Work done by T on m is Centripetal force Search 5 16 4- ^ 6 & ♫+ 7 R because, T acts along the radius and is to the velocity (instantaneous displacement) which is along the tangent. do work on the object during circular motion. 0 A 8 fg ।বব O f10 DII fm DDI f12 {1} T back

A closed thermodynamic system consists of a fixed amount of substance (i.e. mass) in which no substance can flow across the boundary, but energy can. For a closed themodynamic system we cannot add energy to the system, via substance (E ) (1.e. matter which contains energy is not allowed across the boundary) Across the Boundaries E° = No Q = = Yes W mass NO CLOSED = Yes SY STEM m = constant | energy YES Figure 1.1. If the substance inside the thermodynamic system shown in figure 1.1. (i.e. piston cylinder device) is air, is the system a Fixed closed system Moveable closed system A. В.

10:42 *il 64 new.edmodo.com/view-office-online, 4 2/2 7. Find the magnitude and direction of F3 in Fig. 2.7 for the given system to be in equilibrium. F3 F = 15N 250 750 F = 30N Fig. 2.7 +

Choose the correct statement/s. Select the correct response(s): The effect of application of force on fluids is instantaneous. Fluid dynamics and statics examine fluids separately. Ooblek is an example of Newtonian Fluids. Hydrodynamics is part of fluid statics. Everywhere around us, there is fluid dynamics.

The temperature of an ideal gas changes during a throttling. True False A Moving to another question will save this response.

Vindow Help + 98% 4 Mon 9:56 A A docs.google.com F Sixth Amendment Video - Bill of Rights Lesso. G Earth and Space STAAR Review - Google S. G Nguyen - Physics STAAR Review - sics STAAR Review D @ Format Slide Arrange Tools Add-ons Help Last edit was 13 days ago O Present * Share IT 田 Background Layout- Theme Transition 1 2 TEL L 3 14 7 A diagram of the forces being applied to a box is provided (below). If the net force acting on the box is 10 N to the right, what is the magnitude of the force applied by the boy pulling to the left? Record your answer in the grid below. Show all work! Left Right 11 Newtons 8 Newtons 2. ? Newtons 21 Newtons Work/Math (2) (2 (2) (2) 40 40 40 Answer with units Click to add speaker notes )山TO@ MacBook Air 4) II F8 FIV F12 F10 000 F4 F9 F5 F6 F7

1. For your science fair project, you decided to design a model rocket ship. The fuel burns exerting a time-varying force on the small 2.00 kg rocket model during its vertical launch. This force obeys the equation F= A + Bt2. Measurements show that at t=0, the force is 25.0 N, and at the end of the first 2.00 s, it is 45.0 N. Assume that air resistance is negligible. a. What are the forces acting on the rocket? b. Draw its free-body diagram. c. Find the constants A and B, including their SI units using this equation F= A + Bt². d. Find the net force on this rocket and its acceleration the instant after the fuel ignites. e. Find the net force on this rocket and its acceleration 3.00 s after fuel ignition. f. Suppose you were using this rocket in outer space, far from all gravity. What would its acceleration be 3.00 s after fuel ignition? g. What is the rocket's mass in outer space? What is its weight?

account_circle   Science PhysicsQ&A LibraryA child’s toy consists of a m = 31 g monkey suspended from a spring of negligible mass and spring constant k. When the toy monkey is first hung on the spring and the system reaches equilibrium, the spring has stretched a distance of x = 17.6 cm, as shown in the diagram. This toy is so adorable you pull the monkey down an additional d = 7.6 cm from equilibrium and release it from rest, and smile with delight as it bounces playfully up and down.  1. Calculate the speed of the monkey, ve, in meters per second, as it passes through equilibrium.  2. Derive an expression for the total mechanical energy of the system as the monkey reaches the top of the motion, Etop, in terms of m, x, d, k, the maximum height above the bottom of the motion, hmax, and the variables available in the palette.   3. Calculate the maximum displacement, h, in centimeters, above the equilibrium position, that the monkey reaches. A child’s toy consists of a…

1. In general, the internal energy U depends on both temperature and volume, U=U(TV). The volume dependence comes from the potential energy due to the interactions among the particles. For free particles, there are no interactions, thus, the internal energy U should be independent of the volume, i.e., = 0. Verify this result for ideal gas pV = RT. au av