Module 3 - Real-World Physics Discussion

A 3.1 kg object is initially at rest and is experiencing a net force of magnitude 4.7e^-t/2 N. As time approaches infinity, notice that the net force decays toward 0 N, which tells us that the acceleration is also dropping to 0 m/s^2 (and so the velocity is leveling off to a terminal speed). What is the terminal speed? (Ans.= 3.0 m/s)

Mechanical engineering aircon topic. Please help to solve the problem asap. Will upvote for your answer

A 2.0 kg object is moving to the right with a speed of 1.0 m/s when it experiences the force shown in the graph at right. What are the object’s speed and direction after the force ends? Paste the completed Bar Chart below. 1. identify the system 2. draw a quick sketch of the initial state of the object(s) 3. do a momentum bar chart

This the problem how they give it to me I need help please quick

A 250 g ball collides with a wall. The figures below show the ball’s velocity and force exerted on the ball by the wall. What is vfx, the final velocity of the ball? Paste the completed Bar Chart below. 1. identify the system 2. draw a quick sketch of the initial state of the object(s) 3. do a momentum bar chart

fluid mechanics

Five objects in a region where the acceleration due to gravity is 30.2 ft/s2 are as follows: x1 = 450 g of mass x2 = weighs 960gf x3 = weighs 15 poundals x4 = weighs 21bf x5 = 0.20 slug of mass. What is (a) the total mass expressed in gm? (b) the total weight expressed in kgf.

Due to the conservation of angular momentum, what will happen to the rotation speed of a large Red Giant star when it undergoes a Type II Supernova explosion and collapses into a compact Neutron Star? Nota Bene: Consider only what happens to the star during its collapse, not what may happen to it later. A Its rotation will slow down. B It will rotate at the same speed. C Its rotation will speed up.

2. On an alien planet (with unknown gravity), a 5 kilogram object is dropped from rest 10 meters above the ground. In the atmosphere of this planet, the object is estimated to have a drag constant of –3 kg/sec. (Assume drag is proportional to velocity) The object takes 15 seconds to hit the ground. Use this information to calculate the acceleration due to gravity on this planet.

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…

Given: The plane accelerates in its current trajectory with a= 100 m/s^2 Farag Angle theta= 5° W=105 kips F_drag= 80 kips m= 1000 lbs Find: F_thrust, F_lift Please include the KD. Fthrust Futel t Fueight 000 BY NC SA 2013 Michael Swanbom

The ace pilot, Wash, attempts to put the ship Serenity (50,000 kg) in orbit at an altitude of 400 km around a planet (called Haven), which is about the same size as the Earth (D = 12,800 km). He has slowed to an approach velocity of 2 km/s. (recall: G = 6.67 x10-11 N m2 kg-2) Unfortunately, on approach, Serenity’s engines fail and she begins to plummet towards the surface. If the ship accelerates at 1.8g, what is the mass of the planet?  What would the acceleration of the ship be at 350 km? Is a constant acceleration safe to assume? Assume that the average acceleration over the 50 km, what is the velocity of Serenity at the height of 350-km? Upon entry, the ship hits the atmosphere at 350 km (with a density of 0.1 kg m-3). The ship slows to a terminal velocity of 1550 m/s. How big is the heat shield that slows the ship? How quickly does the ship slow (ignore gravity)?

LR = 5m, LG = 2.5m and LC = 1.1m Q2. The Skylark family of sounding rockets consisted of a number of variants (denoted Skylark 5, Skylark 7, and Skylark 12 respectively). These are illustrated on Page 3. The data given below is based on that for the rocket motors they used (all manufactured and named by what was Royal Ordinance – now part of Roxel): Raven XI Motor Total mass: 1280 kg Length = LR See Case Table (units are m) Diameter = 0.44 m Goldfinch IIA Motor Total mass: 420 kg Length = LG See Case Table (units are m) Diameter = 0.44 m Cuckoo IV Motor Total mass: 242 kg Length = LC See Case Table (units are m) Diameter = 0.44 m The payload mass which is additional to the motor masses is to be taken as 100 kg. (a) For the configurations of the three rockets shown on Page 3 in Fig. Q2: (i) Determine the Pitching/Yawing moment of inertia of each rocket about the base of each rocket. (ii) Explain how you could then find the the Pitching/Yawing moment of inertia of each rocket about its…

Tires are one of the most frequently encountered applications of the gas laws that we never think about. We fill our tires with air, or with nitrogen, but it always works out the same way. Enough gas goes in, the tire inflates, and then the pressure starts going up. In this assignment, we’ll be investigating the ways that the gas laws impact how we treat our tires. Q1. I have good information that in Fast 29, Dominic Toretto (Vin Diesel) will need to refill a tire quickly during a dramatic moment. For this reason, he has a 3.00 L tank of compressed air that is under 2.7892*103 mmHg and is kept cool in dry ice at -35.0 °C. When Dom hooks his compressed air up to his completely empty 10.50 L tire at 39.2 °C and lets it run, what will his final tire pressure be, in atm? Assume all the air is transferred into the tire. Is his tire pressure above the 2.31 atm that he needs to save the planet/his family/his crew? Q2. Your car tire pressure sensor looks to see when your tire pressure…

Please don't provide handwritten soution ....

Using the jet engine lecture notes and its charts, derive a mathematical expression relating a jet engine’s dry weight with its take-off thrust. Write the expression in imperial units and then convert it to SI units.

In a vehicle safety test, two vehicles are crashed into one another and a force sensor on one of the vehicles records the following curve for the force that it experienced as a function of time. Add to this graph a sketch of the force that the other car experienced as a function of time and use these two curves to explain why momentum is conserved in all types of collisions. Force (N) (0,0) Time (s)

pls answer in hlf minutes with clear handwriting subject (fluid mech 2)

Zorch, an archenemy of Superman, decides to slow Earth’s rotation to once per 29 h by exerting a force parallel to the equator, opposing the rotation. Superman is not immediately concerned, because he knows Zorch can only exert a force of 4.15 × 107 N. For the purposes calculations in this problem you should treat the Earth as a sphere of uniform density even though it isn't.   a. How long, in seconds, must Zorch push with this force to accomplish his goal? (This period gives Superman time to devote to other villains.)

Q2: As I navigate down the highway, my companion extends a digital kitchen scale from the window. The scale's surface is perpendicular to the incoming airflow, displaying a measurement of 4.0 kg. With the knowledge that the scale's surface area measures 0.06 m2, what is the velocity of the vehicle? Figure 2. Q2. It is generated by Bing Image Creator by requesting "please generate a picture that a digital kitchen scale is held out of the window of a moving car", powered by DALL.E (OpenAl)

- [-/1 Points] DETAILS SERCP8 4.P.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A freight train has a mass of 1.4 x 10 kg. If the locomotive can exert a constant pull of 8.4 x 105 N, how long does it take to increase the speed of the train from rest to 76 km/h? min Need Help? Read It

An object with a mass of 100 kg is dropped and has a velocity of 9.9 m/s just before it hits the ground. What is the impulse (F*t) as the object strikes the ground and comes to rest? Provide your answer in N s but do not include units in your submittal.

The blue cart has a fan attached and it’s mass is 660g. The red cart is 240 g. The other data necessary for the question is in the table provided below. Thanks!

A boxer delivers a hard blow to the chin of his opponent. The inertia of the boxer's hand (with glove) and forearm is 3.0 kg, and the inertia of the opponent's head is 6.5 kg. You learned in neurobiology class about 10 J of extra internal energy will render an opponent wobbly - kneed, and you guess that about half of the converted energy will end up in the opponent's head. Assuming a coefficient of restitution e = 0.20, with what speed does the boxer's fist have to contact the opponent's head in order to deliver the punch?

Please give me the solution in a detailed way. Don't use chatgpt,only handwritten. Mechanical engineering.

A shaft is rotating at a uniform speed with four masses mı, m2, m3 and m4 of magnitudes 300 kg, 450kg, 360kg and 390 kg respectively. The masses are rotating in the same plane. The corresponding radii of rotation are 200mm, 150mm, 250mm and 300mm. The angles made by these masses with respect to horizontal are 0°, 45º, 120° and 255° respectively. 1) Check the magnitude and position of balance mass if it radius of rotation is 200mm, and 2) Evaluate the effect of adding the balance mass to the system.