PHYS 1415 lab 2

ECO 5. AUTOMOTIVE. The power an engine produces is called horsepower. In mathematical terms, one horsepower is the power needed to move 550 pounds one foot in one second, or the power needed to move 33,000 pounds one foot in one minute. Power, in physics, is defined simply as the rate of doing work. The formula below gives the horsepower at 5,252 radians per second. https://philkotse.com/toyota-corona-ior-sale-in-baguio/1991-for-sale-in-aid7017151 625T 1313 where H is the horsepower and T is the torque a. Find the inverse of the model. b. If a taxi produces a horsepower of 200, what is the torque it generates? Solve here:

XYZ Company Ltd has consulted your firm Zig-Zag Energy over an intention to generate electricity in Ghana. Being the senior project engineer for Zig-Zag Energy, management has asked you to prepare a detailed technical report in respect to the project. a) Discuss the major factors to take into consideration when consulting on such projects.                                                                                                           A tank containing air is stirred by a paddle wheel. The work input to the paddle wheels is 2000KJ and the heat transferred to the surrounding from the tank is 6000KJ. b) Determine the change in the internal energy of the system                                              There has been a sharp differences between the board of Blue-Blue Energy over which of the energy sources (hydroelectric power plant-HEP and Coal fired plant) is best for power generation. As an energy expert, you were confronted by the debating faction for your opinion. You…

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. 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?

February 7, 2021 H.W MECHANICS PHrsics Example 5.13 Friction in horizontal motion You want to move a 500-N crate across a level floor. To start the crate moving, you have to pull with a 230-N horizontal force. Once the crate "breaks loose" and starts to move, you can keep it moving at constant velocity with only 200 N. What are the coeffi- cients of static and kinetic friction? Example 5.15 Minimizing kinetic friction In Example 5.13, suppose you move the crate by pulling upward on the rope at an angle of 30 above the horizontal. How hard must you pull to keep it moving with constant velocity? Assume that H = 0.40. Example 5.16 Toboggan ride with friction I Let's go back to the toboggan we studied in Example 5.10. The wax has worn off, so there is now a nonzero coefficient of kinetic friction 4. The slope has just the right angle to make the toboggan slide with constant velocity. Find this angle in terms of w and Hg. Example 5.17 Toboggan ride with friction II The same toboggan with…

engineering dynamics   1. A car moving at 70 km/hr has a mass of 1700 kg. What force is necessary to decelerate it at a rate of 50 cm/s^2? 2. An elevator weighing 3,000 lb attains an upward velocity of 20 fps in 4 seconds with uniform acceleration. What is the tension in the supporting cables?

3. An athlete pushes against an exercise machine with a force that varies with time according to F(1) = 1200 N (1 – kf), where k = 8 s? Also, the velocity of the athlete's legs acting in the same direction as the force acts according to v(t) = 7 m/s² t a. Create a computer generated plot of the power as a function of time. b. Find the maximum power the athlete generates and the time at which maximum power is generated.

Part 1: Do the Analysis of the Ocean Thermal Gradient Power Plant shown below. Your Analysis will be easier to do in EES but it is up to you. Your EES program must be well documented and documentation in your code should reference system sketches. (The cycle and individual components) These sketches are done on attached engineering or typing paper, unless you are able to draw them in EES. You must validate your results with hand calculations on engineering paper that invoke the 1 and 2 Law from the perspective of the entire cycle, not the individual components. Of course, a system sketch is required. nd 1. An ocean thermal gradient power plant using a simple non-ideal Rankine Cycle operates with a peak boiler temperature of 70 °F and a condenser temperature of 40 °F. The warm surface water of the ocean is supplying the thermal energy to the boiler. Assume a high source temperature of 80 °F. The cooler water deeper in the ocean is the sink for heat rejection at the condenser. Assume a…

mechanical engineering works that can be related to algorithm

A husband and wife take turns pulling their child in a wagon along a horizontal sidewalk. Each exert a constant force pulls the wagon through the same displacement. They do the same amount of work,but the husband's pulling force is directed 58grades above the horizontal , and the wife's pulling force is directed 38 grades above the horizontal. the husband pulls with a force whose magnitude is 67N. WHat is the magnitude of the pulling force exerted by his wife? 1)sketch of the problem including everything? 2) 3 laws and principle in this problem?

Definition, diagrams, equations, & sample problems 合 Test Your Skills 14.1 2. A substance undergoes a polytropic process where n = 1.4. If the final pressure is twice as large as the initial pressure and the initial temperature is 264 K, find the final temperature in K. Your answer

The following data are given for a biogas digester suitable for the output of six cows. The volume of digester is 8.3 m3 , the volume of gas holder is 2.2 m3 and the retention time is 22 days. Find the height of gas holder in centimeter.

Recall the discussion on spacecraft from the chapter opener. The following problems consider a rocket launch from Earth’s surface. The force of gravity on the rocket is given by F(d)=−mk/d2, where m is the mass of the rocket, d is the distance of the rocket from the center of Earth, and k is a constant. 172.  As the rocket travels away from Earth’s surface, there is a distance D where the rocket sheds some of its mass, since it no longer needs the excess fuel storage. We can write this function as F(d)=⎨(−m↓1 k / d^2) if d < D                                                                                  (−m↓2 k / d^2) if d ≥ D Is there a D value such that this function is continuous, assuming m1≠m2?

A group of twenty executives attend a board meeting in a room that measures 20 feet by 20 feet and has a 10-foot ceiling. Suppose each person occupies 2.5 feet and gives out about 375 BTUs of heat per hour. Calculate the temperature rise that occurs within 20 minutes of the start of the conference if the room is completely sealed and insulated, Take c for air as 0.1825 BTU / Lbmd Ibm ° F.

3. This problem will help you understand why the wind blowing makes you feel colder, especially in the winter. You are outside on a cold day. The air temperature overall is around 5° C; assume your skin temperature is 16° C a) If you stay outside for a while and there is no wind, the air around you will eventually increase in temperature past 5° C. Explain why the air heats up, using the idea of conduction. b) What is the highest temperature the air around you can reach? Explain. c) As the air around you warms up, explain why you start cooling down more slowly. d) If the wind blows, convection happens: the warm air around your body is blown away, replaced by more 5° C cold air. In this case, will you cool down more quickly or more slowly? Explain. e) Explain why the "wind chill" temperature (ie, the temperature it feels like when the wind is blowing) is colder than the actual temperature of the air.

Task 1 You are a student at the HTU University, the instructor of the fundamental of thermodynamic course asked you to explain the fundamentals of thermodynamic systems to Grade 10 school students to help them visualize the importance of thermodynamics in their life starting from their car engine and moving to the different appliance that they use in their home, discuss the following with school students: Q1. What does thermodynamics mean and represent? Give examples from your daily life. Q2. What is a thermodynamic property? What is the difference between intensive and extensive properties. Why the density is an intensive property; it is dependent on mass and volume which are extensive properties, right?. Q3. What is the difference between energy and heat transfer? Give examples on both. Q4. What does the first law of thermodynamics state? Give two examples on the first law of thermodynamics from your daily life. Q5. Write down the equation of energy balance for closed, open, and…

As an automotive engineer, your role is to design a petrol engine for SUV car with fourstroke and four cylinder petrol engine. Describe the performance criteria need to beconsidered in detailing out the possible outcome of your spark ignition engine? Write asimple essay and an example of your design calculation to describe the prototype ofyour engine.

1%EA I. docs.google.com/forms/d/e/1FA O * For figure below, the tension in the cable is 0.25 m 25° B 0.5 m - 0.12 m 1.5 m 14. &N 5 m 23.5 29.5 25.5 27.5 صفحة 1 من 1 إرسال

A solar panel is mounted on the roof of a house. Fig. 4.1 shows a section through part of the solar, panel. 4 sunlight trapped air copper pipe, painted black water glass sheet insulating metal backing sheet, painted black material Fig. 4.1 A pump makes water flow through the copper pipes. The water is heated by passing through the solar panel. (a) Select and explain three features of the solar panel that maximise, the final temperature of the water.

Problem A person is doing leg exercises where a 100N weight linked via a pulley is attached to their heel. Based on a simplified system in which the quadricep muscles are the only active muscle group and can be modeled as a single muscle tension, what is the muscle tension and joint reaction force at the knee necessary to maintain this position. You can assume the quadriceps is attached to the tibia 5 cm below the knee, making a 15° angle with the horizontal. The weight of the leg is 120 N and the center of gravity is 0.35 m from the knee joint, and the length of the leg is 0.8 m. Make sure to draw a FBD of the lower leg. 100N Fm

Wind power is defined as the use of air flow through wind turbines to provide the mechanical force to generate electricity. Wind power is an alternative to burning fossil fuels, and is renewable and produces no greenhouse gas emissions during operation. Modern horizontal-axis wind turbines often use three blades. Theoretically, the maximum power P (unit: watts) that a three-blade wind turbine can extract from the wind power can be calculated as: P = pAv³C₁. . (Equation 1) where p is the air density (kg/m³), A is the sweep area of the turbine (m²) and can be calculated from the length of the turbine blades, and v is the wind speed (m/s). Cp is the power coefficient that is unique to each turbine type. This coefficient represents the amount of kinetic energy from the wind that is captured by the turbine. From the Betz's limit law we know that the best power conversion possible is Cp,max = 0.59. Part 1 Given the following data: Blade length /= 50 m Air density p= 1.5 kg/m³ Power…

An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J).  It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).

2. (Inspired by a walk in Baker Student Center.) An escalator handles a steady load of 30 people per minute taking them from the first to the second floor through a vertical rise of 24 feet. Let us say the average person riding the elevator weighs 160 lb. a. What output power on a motor do you require to drive the unit? Take literally one minute to find an electric motor online that could do this job. You can search “_ hp electric motor" and state the motor name, power, cost, and vendor. Of course, round up your hp, not down to meet your specs. (In practice, this is an area where you can spec the motor in equivalent Watts, if you choose.) b. What is the electric power that is input to the motor considering losses within the escalator system due to friction, vibration, etc.? Your chosen motors surely have a different efficiencies and sources may even present efficiency as a function of power/rpm, so let's all use the value of e= 0.85 for consistency.

Q3. Swimming robots – Two friends, Alex and Barbara, are having a friendly competition: who can build the fastest swimming "robot". The robot should be very rudimentary: the body should be a simple potato and both friends are only allowed to add a propulsion mechanism at the end. Alex is a big fan of fish, and therefore bases his robot's swimming mechanism on the tail of a fish: He attaches a paddle to a motor, which rapidly changes the angle of the paddle from side to side. Barbara, on the other hand, was inspired by flagellar propulsion and decided to attach a corkscrew to a motor which rotates it along its axis, as depicted. Alex Barbara a) If the race is done in water, who should win the race? Explain. b) If the race is done is honey, who should win the race? Explain.

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

The crux of the problem asks you to compute the elastic modulus of a pancake--for this we give you numbers that we got from our own measurements of the pancakes. The last question asks you to hypothesize about which ingredients are playing the role of flour in the gluten free recipes. If you find this topic interesting, you may want to consider exploring something like this for your final project, and design an experiment to understand the difference between the normal and gluten free recipe and try to manipulate the gluten free recipe to better resemble the normal pancakes.If you choose to make the two recipes and compare them in your own kitchen, make sure you use exactly the same protocol for each recipe: In our trials, we made the batter, and then cooked on a skillet, using 1/4 cup of batter per pancake, and flipped when the edges were firm and golden, about 4-5 minutes on each side.Consider a stack of six pancakes. Each pancake is made of 1/4 cup (approximately 60 mL) of batter,…