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- An airplane flying at an altitude of 5 kilometers passes directly over a radar antenna. When the airplane is 10 kilometers away (s = 10), the radar detects that the distance s is changing at a rate of 410 kilometers per hour. What is the speed of the airplane? (Round your answer to two decimal places.) km/h 5 km Not drawn to scale Submit Answer P Type here to search 1:16 PM 29°C 11-Oct-21 esc 17 no2 12/A prt sc delete 96 21 4. 6. 7. 8. 9. backspace fab Y. P. enter caps lock K shift O B shift fn POU ex ctrl fn alt alt crl pgda harman kardor 3.Question 1 A large aircraft weighing 142,000 Ibs can accelerate to a takeoff speed of 200 ft/s in 25s. What is the acceleration of the aircraft? ft/s a I don't know 2 attemptsA Moving to another question will save this response. Quèstion 9 The figure below shows a skier sliding down a frictionless circular slope. What is the speed of the skier at B if his speed at A is 14 m/s? 40° 30 m F9 F10 F8 F6 F7 Esc F3 F4 F5 F1 F2 & 23 6. 7 V 8N 4 5
- 1. The wheel starts rotating from rest, 2) if its angular velocity Was a function of angular position 0 is W=0.1-0², where O is in radian, and its radius ris 0.2 m, what is the magnitude of the angular acceleration (in rad/s?) of the wheel after the wheel has turned 1.1 revolution(s) from rest. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. PA particle is moving along a straight line according to the acceleration vs time graph given below. If the particle starts from rest, what is the particle's velocity at t = 17 seconds if k = 1.52 m/s²? Round off only on the final answer expressed in three decimal places. Indicate appropriate unit. a k -1.25 m T 10 t2 t(s) :Part A The a – s graph for a rocket moving along a straight track has been experimentally determined. The rocket starts at s = 0 when v = 0. (Figure 1) Determine its speed when it is at s = 85 ft Express your answer to three significant figures and include the appropriate units. HA ? Value Units v = Submit Request Answer Part B Determine its speed when it is at s = 150 ft. Use Simpson's rule with n = 100. Express your answer to three significant figures and include the appropriate units. HA Figure v = Value Units a (ft/s?) Submit Request Answer < Return to Assignment Provide Feedback a = 5 + 6(y5 - 10)3 s (ft) 100 P Pearson
- 3. For this series of 5 questions, a block is released from the position shown with a certain initial velocity. It then slides down the smooth (friction-less) path for which the function is given in the image. You will be asked to solve for different things. Please pay attention: the numbers may change from problem to problem since they are randomized. 4) If the block has mass of 65 kg and its initial velocity is 2.3 m/s (at x = 3 m), determine the normal force N which the path exerts on the block right before it reaches the spring (at x = 0). Your answer must include 1 place after the decimal point and the proper unit. Take g = 9.81 m/s². k = 5 kN/m puudu Your Answer: Answer units y = 0.25x² 3 m v XO His movement stopped. O His time was constant. O His acceleration was positive. Question 6 Velocity vs Time Time (sec) Based on the graph of velocity over time, which could be the initial velocity and the final velocity for this graph? O initial = 2.5 m/s; final = 2.5 m/s O initial = 0 m/s; final = 2.5 m/s O initial = 3.0 m/s; final = 6.0 m/s O initial = 6.Om/s: final = 3.0 m/s Velocity (m/s)Question 9 Answer the following questions. Show your work on a separate paper. Round your responses to 3 significant figures. Include appropriate units. Provide magnitude and direction where appropriate. The 4.5 Mg truck shown below collides with the 1.75 Mg car. After the collision, they move forward together. Answer the following questions. 30 km/h 10 km/h 38) What is the combined velocity of the truck and the car just after impact? Show your work. Solution Units Direction 3b) What is the coefficient of restitution of the impact? Show your work or justify your response on a separate piece of paper. Solution Units
- า In the first 3 years that Jill owns her sports car, she drives 63,350 kms. Jill maintains her vehicle according to the distance maintenance schedule below taking into consideration both kilometres driven and elapsed time. The fuel consumption rating for her sports car is 8.3 L/100 km. Each year, Jill pays $1960 for insurance and $98 for her vehicle license plate registration. During those 3 years, Jill renews her driver's licence at a cost of $80. The average cost of fuel is $1.06/L. Determine Jill's average monthly operating cost during the 3 years. Use the table provided (see attached) to organize your answers. Recommended Service Lube, oil and filter Tire rotation and brake inspection Wheel alignment inspection Automatic transmission Frequency (kms) 5000 10000 25000 Cooling system 50000 Tune-up and emission 85000 control Vehicle Maintenance Schedule 85000 H Frequency (months) 3 6 15 24 30 2 51 Approximate cost $36.95 $63.99 $79.95 $84.95 $165.00 $175 ONGOING DEMONSTRATION h1-F X b Answered: Detern X 3 Google day X 7 Google anxi X 7 https://moodle.nct.edu.om/mod/quiz/attempt.php?attempt=827752&cmid=98802&page=2 earning Portal Courses Reports - e-Services Academic Departments - ETC - CIMS- A brass specimen is subjected to a Tensile test in a laboratory. The following data obtained are: Length of Specimen = 335 mm; Diameter of Specimen = 15 mm; Yield Stress = 1326 MPa; Ultimate Stress = 2496 N/mm²; Solution: The Elongation at 29 kN (in mm) = Load at Yielding (in N)= Fracture Stress = 1763 MPa; % of Elongation = 48 % % of Reduction in area = 37 %. Determine the elongation at 29 kN, Load at yielding, Maximum load, Load at fracture, Final Length & Final diameter. Take Young's Modulus as 106 GPa. Maximum Load (in N)= Fracture Load (in N)= Google dazji X Final Length (in mm)= Final Area (in mm²) = Final Diameter (in mm) = Outcome 1_Classi X Diap OLearning Goal: Consider the mass and pulley system shown. Mass m₁ = 32 kg and mass m₂ = 10 kg. The angle of the inclined plane is given, and the coefficient of kinetic friction between mass m² and the inclined plane IS Uk = 0.12. Assume the pulleys are massless and frictionless. (Figure 1) Figure 99 F Sunny 271 1 of 1