BME 2220 Homework 2 _2_

Question 1 The main forces acting on a flying aero plane are the thrust T, the weight W, and the aerodynamics forces namely the lift L and the drag D as shown in the figure Q1. The path of flight is shown by the x-axis. The angle between thrust and path is known as angle of attack and the angle between the horizontal and the path is known as flight path angle. The mass of the aero plane is 72000 kg. At an instant of equilibrium, the lift is 680 kN, the drag is 125 kN and the flight path angle is 6°. Determine the angle of attack and the thrust required to maintain a steady flight. Infer the effect of thrust on the aero plane's weight.

3.8 Please help me with this problem with step by step clear explanation and needed correct solution, please.. I NEED ONLY THE CORRECT ANSWER Posting for a second time remember needed the correct answer ...

The figure on the left, below, shows a non-uniform bent rod with a mass of 5 kg. Your job is to determine the location of the center of gravity of this rod. You design an experiment: you connect a pin and cable to the rod such that it safely stays in static equilibrium under a force P that you apply. Then, you apply forces between 0-100 N, and measure the tension force on the cable using a cable tension meter. The results of your experiment are shown in the figure, on the right. Using this experiment, calculate (approximately) the horizontal distance (x in the figure) between point A and the center of gravity G of the bent rod. B C O I 20 cm 20 cm 60° D 50 cm Tension measurement [N] 60 50 40 30 20 -10 0 10 real data estimated fit 20 30 40 ܐܐܝ 50 P[N] 60 70 80 90 100

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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. The PASCO human arm model is configured such that the cord representing the bicep is perfectly vertical and the forearm is at 90° (in the figure to the right, the cord is not quite vertical). A mass of 100 g is attached to the hand. Draw a free-body diagram on the figure to the right showing all forces which act on the forearm. The force of the bicep F on the arm The force of the humerus FH on the arm The weight of the forearm W The mass in the hand Wm 100 g Be careful to draw the force vectors with tails beginning at the point where the force is actually applied to the forearm. 2. Consider the free body diagram below. Determine the perpendicular component F̟ of the force F exerted by the biceps brachii on the forearm. Use the fact that cos 0 = H/B to write this component directly in terms of the humerus length H and the biceps length B. H 3. If the forearm is in equilibrium, then there is no angular acceleration and therefore the sum of the torques applied to the forearm must be…

The figure shows a person wearing weight boots and doing lower leg flexion/extension exercise in a sitting position to strengthen the quadriceps muscles and a simple mechanical model of his leg. W1 is the weight of the lower leg, W0 is the weight of the boot, the magnitude of the pulling force applied to the tibia by the quadriceps muscles through the FM patellar tendon, the magnitude of the reaction force acting on the FJ tibiofemoral joint. Point O is the center of the tibiofemoral joint, point A is the point where the patellar tendon attaches to the tibia, point B is the center of gravity of the lower leg, point C is the center of gravity of the weight boot. The distances between point O and points A, B and C were measured as a=13 cm, b=27 cm and c=36 cm, respectively. The angle that the long axis of the tibia makes with the horizontal is β=34°, the angle between the line of action of the quadriceps muscle strength and the long axis of the tibia is α=18°. Points O, A, B and C lie…

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3. A uniform, 200-kg plate is kept in static equilibrium by two hinges, A and B, and a single cable, DCE. a) Draw the FBD of the plate. b) Write the coordinates of each named point in the figure (A, B, etc.) and any additional point where a force or moment is acting. c) Is this system statically determinate? Explain your answer. d) Is this system completely (i.e., properly) constrained? Explain your answer. e) Assume the hinges are properly aligned and do not exert any reaction moments on the plate. Determine the tension force on the cable DCE for this plate to stay in static equilibrium. (Hint: when a rigid body is in static equilibrium, the resultant moment about any point or line has to be equal to zero. Could you find a line that gets rid of your other unknowns?) 50 cm D 90 mm 90 cm с 30 cm 120 cm B 90 mm E. 80 cm x

attached is a past paper question in which we werent given the solution. a solution with clear steps and justification would be massively appreciated thankyou.

Physics 121 Spring 2021 - Document #11: Homework #04 & Reading Assignment page 4 of 8 Problem 1: Gnome Ride - This from a Previous Exam I. A Gnome of given mass M goes on the Gnome Ride as follows: He stands on a horizontal platform that is connected to a large piston so that the platform is driven vertically with a position as a function of time according to the following equation: y(t) = C cos(wt) Here w is a constant given angular frequency, C is a given constant (with appropriate physical units) and y represents the vertical position, positive upward as indicated. Part (a) - What is the velocity of the Gnome at time t = 0? Explain your work. Present your answer in terms of the given parameters Part (b) – What is the net force on the Gnome at time t = 0? Explain your work. Present your answer in terms of the given parameters Part (c) – What is the Normal Force on the Gnome at time t = 0? Explain your work. Present your answer in terms of the given parameters Some Possibly Useful…

Problem 7 Marooned You are stranded on a boat with no way to paddle to the shore (and no water current to move the boat). You have mass 2m and the boat also has mass 2m. In addition, you brought 2 weights from the physics lab that each have mass m. Since you have been hitting the gym with Juan, you can throw the weights with an impressive speed of vo. (a) If you throw both weights off the back of the boat simultaneously, what will the speed of the boat (and you) be? (b) Suppose instead you throw each weight off the back of the boat individually. What will the speed of the boat be in this case? (Be careful when considering how fast the second weight is thrown with respect to the water). (c) If you were trying to get to shore as fast as possible, which method should you choose? Should you throw the weights towards shore or away from shore?

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You are sitting in a chair and you are ready to kick a soccer ball from a sitting position using only your quadriceps muscles to rotate your knee. Be sure you will not pivot your hips, as you are sitting in the chair; we want to simplify this problem to include only rotating your lower leg at the knee joint and keeping your thigh firmly fixed to the seat. For our purposes, your quadriceps muscles can be treated as a single string that exerts a tension on the knee at a right angle from a lever arm of 2.00 cm. The knee is connected to a plausible 50.0 cm lower leg as measured from the pivot point of the knee to the contact point where we will kick the ball.Before we kick it, we would like to balance the ball on our contact point (at our ankle, say) 50.0 cm away from the pivot point of the knee by extending the lower leg straight out (upper leg aligned with the lower leg). The soccer ball has a mass of 400 grams. We will neglect all mass of all parts of the leg here for brevity c) We now…

You are sitting in a chair and you are ready to kick a soccer ball from a sitting position using only your quadriceps muscles to rotate your knee. Be sure you will not pivot your hips, as you are sitting in the chair; we want to simplify this problem to include only rotating your lower leg at the knee joint and keeping your thigh firmly fixed to the seat. For our purposes, your quadriceps muscles can be treated as a single string that exerts a tension on the knee at a right angle from a lever arm of 2.00 cm. The knee is connected to a plausible 50.0 cm lower leg as measured from the pivot point of the knee to the contact point where we will kick the ball.Before we kick it, we would like to balance the ball on our contact point (at our ankle, say) 50.0 cm away from the pivot point of the knee by extending the lower leg straight out (upper leg aligned with the lower leg). The soccer ball has a mass of 400 grams. We will neglect all mass of all parts of the leg here for brevity.a) Draw an…

You are sitting in a chair and you are ready to kick a soccer ball from a sitting position using only your quadriceps muscles to rotate your knee. Be sure you will not pivot your hips, as you are sitting in the chair; we want to simplify this problem to include only rotating your lower leg at the knee joint and keeping your thigh firmly fixed to the seat. For our purposes, your quadriceps muscles can be treated as a single string that exerts a tension on the knee at a right angle from a lever arm of 2.00 cm. The knee is connected to a plausible 50.0 cm lower leg as measured from the pivot point of the knee to the contact point where we will kick the ball. Before we kick it, we would like to balance the ball on our contact point (at our ankle, say) 50.0 cm away from the pivot point of the knee by extending the lower leg straight out (upper leg aligned with the lower leg). The soccer ball has a mass of 400 grams. We will neglect all mass of all parts of the leg here for brevity. Draw an…

5.31a shows a student pulling horizontally with a 100 N force on a rope that is attached to a wall. In 5.31b, two students in a tug-of-war pull on opposite ends of a rope with 100 N each. Is the tension in the second rope larger than, smaller than, or the same as that in the first?