Mechical Efficiency Lab - Data (1)

A flywheel whose moment of inertia | = 200 lb-ft² is spinning at 210 RPM. For a flywheel, KE = lw?/2, where w is the angular velocity, rad/s. Let g = 32.2 ft/s?. Step 1 How high above the surface of the earth, in ft, would a 50 lb mass have to be raised to have its potential energy equal to the kinetic energy of the flywheel?

1- Select the optimum choice for: high speed air craft skins material. Table 1: The properties of metallic materials E, GPa Max. use lemp, 'C | Density, Mg/cm' ay, MPa | Relative cost per unit sheet area Material 2.8 300 2 Aluminum alloy 200 69 200 7,8 350 350 700 Carbon steel Stainless steel 193 7.8 650 6 8.9 600 6 Nickel alloy Titanium alloy 207 1000 116 600 4.5 900 10 Table 2: Weighting factor Specific yield strength: Max, use temperature: Youngs modulus: 4 2

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

QI/ A gas in a piston-cylinder assembly undergoes an expansion process for which the relationship between pressure and volume is given by pVn=constant. The initial pressure is 3 bar, the initial volume is 0.1 m3, and the final volume is 0.2 m3. Determine Solution and discussion: 1. 1. The expansion is a. Fast b. graduated c. fully damped d. adiabatic. 2. 2. The energy means: a. Em – Eout = 0 b. H, = H2 c. Q12 = AU12 d. AĖ12 # 0

1) An electric motor’s torque is a function of the speed at which it rotates. Many brushed AC motors have a linear toque curve as shown below. If the power output of the motor is equal to the torque (T) multiplied by the rotational speed in rad/s (w), what is the maximum power you can get out of the motor if the stall torque (Tstall) is 0.001 Nm and the no load speed (wno load) of 10,500 RPM? Give answer in Watts.

C Dynamic Analysis and Aeroelasticity SECTION B Answer TWO questions from this section ENG2012-N The moment of inertia of a helicopter's rotor is 320kg. m². The rotor starts from rest and at t = 0, the pilot begins by advancing the throttle so that the torque exerted on the rotor by the engine (in N.m) is modelled by as a function of time (in seconds) by T = 250t. a) How long does it take the rotor to turn ten revolutions? b) What is the rotor's angular velocity (in RPM) when it has turned ten revolutions?

Pls.answer thank you! A classroom that normally contains 40 people is to be air-conditioned with window air-conditioning units of 5 KW cooling capacity. A person at rest may be assumed to dissipate heat at a rate of about 360 KJ/hr. There are 10 light bulbs in the room, each with a rating of 100 watts. The rate of heat transfer to the classroom through the walls and the windows is estimated to be 15,000 KJ/hr. If the room air is to be maintained at a constant temperature of 21°C, determine the number of window air-conditioning units required.

7. For ethanol, a handbook gives: sp. gr. 60°F = 0.79389. What is the density of ethanol at 60°F? 8. The specific gravity of steel is 7.9. What is the volume in cubic feet of a steel ingot weighing 4000 lb? 9. The specific gravity of a solution is 0.80 at 70°F. How many cubic feet will be occupied by 100 lb of the solution at 70°F?

-) Prof. K. took a Tesla Model S for a test drive. The car weighs 4,500 lb and can accelerate from 0 to 60 mph in 2.27 seconds. The car has a 581 kW battery pack. Help Prof. K. determine the efficiency of the vehicle [Ans. to Check 55.5%]. Note: The equation we learned in class P = F v ONLY APPLIES if velocity is constant. Use the steps below to guide your thought process. Develop a symbolic relationship for the force required to move the car forward. Compute the work done by the car (in Ib-ft). Calculate the power required to do this work (in kW). 2) After playing a game of pinball, you decide to do some calculations on the launching P Type here to search 9:09 AM 33°F Mostly sunny 3/7/2022 Esc DII PrtScn FB Home F9 End F10 PgUp PgDn Del F4 F12

Vo) LTE1.ll LTE2 l £ Vo) 4G 11:12 bartleby.com = bartleby Q&A Engineering / Mechanical Engineeri... / Q&A Library / Two ... Two blocks A and B weigh 1 kN and 2 kN re... Question 3. Two blocks A and B weigh 1 kN and 2 kN respectively and are in equilibrium position as shown in the figure. If the coefficient of friction between the two blocks as well as the block B and the floor is 0.3. Find the minimum force P required to move the block B. A B II

00 T R %24 Bb R V qa du/webapps/assessment/take/launch.jsp?course_assessment_id%=_254968_1&course_id%3D 3565256_1&content id= 52826 * Question Completion Status: Attach File Browse Local Files Browse Content Collection QUESTION 2 A company needs to choose one supplier for a particular type of silicon wafer used'in the production of semiconductors. The company has three options. Supplier A sells the silicon wafers for $2.50 per wafer, independently of the number of wafers ordered. Supplier B sells the wafers for $2.40 each but does not consider an order for less than 2,000 wafers. Supplier C sells the wafers for $2.30 each but does not accept an order for less than 3,000 wafers. Assume an order setup cost of $100 and an annual requirement of 20,000 wafers. Assume a 20% annual interest rate for holding cost calculations. a. Which supplier should be chosen to minimize the total annual cost for the wafers, and what is the optimal order quantity? b. If the replenishment lead time for wafers…

Per Bartleby honor code only 3 subparts of a question can be answered per submission. I have submitted 10, 11, 12, and 13 previously. Please answer 14, 15, 16