Week 14 HW - thermal properties

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).

Please give a complete solution in Handwritten format. Strictly don't use chatgpt,I need correct answer. Engineering dynamics

Simple Machines-Levers, Inclined Planes, and Pulleys Directions: Use the appropriate equation to answer the following questions. All answers should be recorded below or in your Engineering Design journal. Remember to show all work. A lever has an effort arm that is 5 meters long and a resistance (load) arm that is 3.5 meters long. How much effort is needed to lift a 100 Newton weight? 5K i). Draw the figure representing the problem ii). How much effort is needed to lift a 100 Newton weight? iii). What is the Actual Mechanical Advantage 1. 5m i) AOON 5-5m

Thermodynamics Please READ THE PROBLEM! I’m tired of posting the same problem over and over. please Read. This is what the asking for please: -1. sketch and label all your answers on the nozzle -2. Sketch and label all your answers on the process on a P-V diagram.... Thank you

Im not sure how ro go about this, can you help me figure out these answers or how to get these answers?

For Questions 5 - 9 A smooth sphere of diameter d is dropped into a calm ocean. Data: d = 20 cm; Sphere material's density psp = 3000 kg/m3; Sea-water density psw = 1025 kg/m3, viscosity Psw = 1.002×103 Pa.s, temperature 20°C. B is buoyancy force on the sphere (numerical value only; no sign); similarly FD is the drag force on it, and W its weight; Cp is the drag coefficient. The sphere's steady sinking velocity is V (in m/s), assuming that the ocean is of sufficient depth such that V has been attained. Volume of a sphere of diameter d is Tid/6. Make other reasonable assumptions.

Needs Complete typed solution with complete explanation and 100 % accuracy.      Don't use chat gpt or any ai

Newton's Law of cooling states that the rate at which heat is lost by a heated body is proportional to the difference in temperature between the body and the surrounding medium. Match the following statements/phrases with the corresponding item in the drop down box. Choices in the box 1. In accordance with the stated law obove, we have the equation? 2. If a thermometer is taken outdoors where the temperoture is 5 deg C, from a room in which the temperature is 20 deg C and the reading drops 10 deg C in one minute, the working equation is? 3. In the obove problem, separoting the variables and integrating will result to? 4. In the obove problem, how long, in minutes, after its removal from the room will the reading be 6 deg C? 5. In the obove problem, ofter 30 seconds, whot will be the thermometer reading? 5.2 dT(body temp)/dt = k(Temp of medium - 5) dr(body temp)/dt = k(Temp of body - Temp of medium) Temp of body = Cenkt +5 2.5 13.7 dr(body temp)/dt = k(Temp of medium - Temp of body)…

+ X Strength of Materials. (Midterm x Desmos | Scientific Calculator x My Questions | bartleby x Calculus Calculator - Symbolab https://forms.office.com/Pages/ResponsePage.aspx?id%=Ks62XIUvNEiFeKmoyqxdb5JQ7Qw-I-pOgsEZYNdO7_ZUQIhTTOVNNzAOV1hYUOVOSEpSUFFZS1c1US4u A . الإشارات الأخری H التطبيقات مطلوب Section 5 3 m 2m 2 m The rigid beam ABC is supported by pin A and wires BD and CE. If the load P on the beam causes the end C to be displaced 6 mm downward. What is the normal strain developed in * ?wire BD )2 نقطة( 0.0015 C 2.57 O 0.00107 10:02 PM AR 11/29/2020

Major: Mechanical Engineering , Course: ME322 ( Mechanical Engineering Systems Laboratory ) Q:  Which surface improves the least temperature difference with forced convection and which improves the most. Can you explain this? What does it say about the amount of heat transferred to the surrounding air? Write the related general equations or a fundamental reference that defines the amount of heat transferred from a flat and pinned surface to the air. State all the parameters in the equations clearly with their units in SI system.

I need help with the second table. and these questions   1- If 1 gallon of oil = 1.4 therm, how many gallons have been wasted by heat loss in Feb? (1 therm = 100,000 BTU)   2- If $1.30 per therm, how much did you waste from house heat loss in Feb?

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

Pl:1: this was all information that was given to me. If need j would need to look it up online.

Please help with question 2 only.